Thermal insulation core layer structure

Abstract

This application relates to a thermal insulation core layer structure. The thermal insulation core layer structure includes: a first fabric; a second fabric disposed opposite to the first fabric; a plurality of first three-dimensional lining strips located between the first and second fabrics, each first three-dimensional lining strip having one edge connected to the first fabric and the other edge connected to the second fabric, adjacent first three-dimensional lining strips forming a plurality of filling cavities; and filling material filling the filling cavities. This application uses adjacent first three-dimensional lining strips to form a plurality of filling cavities to accommodate the filling material, thereby improving the uniformity of the filling material.

Description

1. Description of Thermal Insulation Core Layer Structure Technical Field This application relates to the field of thermal insulation, and more particularly to a thermal insulation core layer structure. Background Art Common down comforters or down jackets generally employ a process of sewing two layers of fabric together to form independent down-filling chambers. However, in this process, the area where the seam is located cannot be filled with down, which directly causes the down to be squeezed and gather towards the center of the chamber, resulting in uneven down filling. This affects the overall thermal insulation effect of the down comforter or down jacket. Summary of the Invention Based on the above problems, this application provides a thermal insulation core layer structure to improve the thermal insulation effect of the thermal insulation core layer structure. This application provides a thermal insulation core layer structure, including: a first fabric; a second fabric, disposed opposite to the first fabric; a plurality of first three-dimensional lining strips, located between the first fabric and the second fabric, one side edge of each first three-dimensional lining strip is connected to the first fabric, and the other side edge of each first three-dimensional lining strip is connected to the second fabric, and adjacent plurality of first three-dimensional lining strips enclose a plurality of filling cavities; and filling material, filling the filling cavities. According to some embodiments of this application, the first three-dimensional lining strip includes at least one V-shaped segment, the V-shaped segment including: a first side segment; and a second side segment connecting the first side segment. According to some embodiments of this application, the area enclosed by two opposing V-shaped segments in adjacent first three-dimensional lining strips forms the filling cavity. According to some embodiments of this application, a gap exists between the tips of two opposing V-shaped segments in adjacent first three-dimensional lining strips, the gap communicating with the connected filling cavity, the width of the gap being 1~30mm. According to some embodiments of this application, the first side segment is parallel to one edge of the thermal insulation core layer structure. According to some embodiments of this application, the first side segment is inclined relative to the edge of the thermal insulation core layer structure. According to some embodiments of this application, a transition rounded corner is provided between the first side segment and the second side segment. According to some embodiments of this application, the edge of the thermal insulation core layer structure is formed by connecting the edges of the first fabric and the second fabric, or by connecting the first fabric and the second fabric through a second three-dimensional lining strip. According to some embodiments of this application, the first three-dimensional lining strip is arranged in multiple continuous S-shapes. According to some embodiments of this application, the cross-section of the first three-dimensional lining strip is U-shaped or Z-shaped. According to some embodiments of this application, the height of the first three-dimensional lining strip is 5~50mm. This application provides multiple first three-dimensional lining strips between the first fabric and the second fabric, and adjacent first three-dimensional lining strips enclose multiple filling cavities to accommodate filling material and improve the filling uniformity of the filling material.Brief Description of the Drawings To more clearly illustrate the technical solutions of this application, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings, without exceeding the scope of protection claimed by this application. Figure 1 is an exploded view of the thermal insulation core layer structure of an embodiment of this application; Figure 2 is a partial view of the thermal insulation core layer structure of an embodiment of this application; Figure 3 is a schematic diagram of the cavity in an embodiment of this application; Figure 4 is a schematic diagram of the gap in an embodiment of this application; Figure 5 is a schematic diagram of one arrangement of the first three-dimensional lining strip in an embodiment of this application; Figure 6 is a schematic diagram of another arrangement of the first three-dimensional lining strip in an embodiment of this application; Figure 7 is a schematic diagram of the V-shaped segment in an embodiment of this application; Figure 8 is a schematic diagram of the second three-dimensional lining strip in an embodiment of this application; Figure 9 is a cross-sectional schematic diagram of the three-dimensional lining strip in an embodiment of this application. Detailed Description of the Embodiments The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. As shown in Figures 1 and 2, an embodiment of this application provides a thermal insulation core structure 10, which includes: a first fabric 1, a second fabric 2, a plurality of first three-dimensional lining strips 3, and a filling material 4. As shown in Figure 3, the first fabric 1 and the second fabric 2 are arranged opposite to each other. Optionally, the edge of the first fabric 1 is connected to the edge of the second fabric 2 to form a closed cavity 5. For example, the first fabric 1 and the second fabric 2 are both square in shape, and the four edges of the first fabric 1 and the four edges of the second fabric are connected. The first fabric 1 and the second fabric 2 are connected by at least one of sewing, bonding, and welding. A plurality of first three-dimensional lining strips 3 are disposed in the cavity 5 formed by the first fabric 1 and the second fabric 2. The top edge of each first three-dimensional lining strip 3 is connected to the first fabric 1, and the bottom edge of the first three-dimensional lining strip 3 is connected to the second fabric 2. The first three-dimensional lining strip 3 is connected to the first fabric 1 and the second fabric 2 by at least one of sewing, bonding, and welding. Within the cavity 5, the first fabric 1 and the second fabric 2 are not directly connected. Adjacent first three-dimensional lining strips 3 enclose multiple filling cavities 6; for example, two adjacent first three-dimensional lining strips 3 enclose multiple filling cavities 6. Each filling cavity 6 is an independent area, with the first fabric 1 closing the filling cavity 6 from above and the second fabric 2 closing the filling cavity 6 from below.The filling material 4 is filled into the filling cavity 6. The filling material 4 can be a warming material such as down, silk floss, or cotton. In this application, multiple first three-dimensional lining strips 3 are provided between the first fabric 1 and the second fabric 2, so that the first fabric 1 and the second fabric 2 are not directly connected in the cavity 5. Each group of two adjacent first three-dimensional lining strips 3 encloses multiple filling cavities 6, and the filling material 4 can be evenly filled into the filling cavity 6, improving the uniformity of the distribution of the filling material 4 in the cavity 5, thereby improving the warming effect of the warming core layer structure 10. As shown in Figure 4, in some embodiments, the first three-dimensional lining strip 3 includes at least one V-shaped segment 31, and the V-shaped segment 31 includes: a first side segment 311 and a second side segment 312. The second side segment 312 is inclined relative to the first side segment 311, and one end of the second side segment 312 is connected to one end of the first side segment 311. When the first three-dimensional liner 3 includes multiple V-shaped segments 31, the multiple V-shaped segments 31 are arranged sequentially, and the second side segment 312 of one V-shaped segment 31 is connected to the first side segment 311 of the adjacent V-shaped segment 31. In some embodiments, the included angle between the first side segment 311 and the second side segment 312 in the V-shaped segment 31 is 85°~95°, for example, the included angle between the first side segment 311 and the second side segment 312 is 90°, and the filling cavity 6 is approximately square. In some embodiments, the area enclosed by two opposing V-shaped segments in adjacent first three-dimensional liner 3 forms the filling cavity 6. In some embodiments, two adjacent first three-dimensional liner 3 do not abut against each other, and there is a gap J between the tips of the two opposing V-shaped segments 31, the gap J connecting two adjacent filling cavities 6, so that the filler 4 can sequentially fill multiple filling cavities 6. The gap J serves as a channel for the filler 4. After the filler 4 fills one filling cavity 6, it enters the adjacent filling cavity 6 through the gap J to fill the adjacent filling cavity 6. Optionally, in the plurality of filling cavities 6 enclosed by two adjacent first three-dimensional lining strips 3, there is a gap J between adjacent filling cavities 6. In some embodiments, the width D of the gap J is 1~30mm. If the width D of the gap J is too large, it may affect the uniform distribution of the filler 4. If the width D of the gap J is too small, it is not convenient to fill the filling cavity 6. As shown in FIG5, in some embodiments, the first side segment 311 is parallel to one edge of the thermal insulation core structure 10.The number of V-shaped segments 31 contained in different first three-dimensional lining strips 3 varies. For example, one first three-dimensional lining strip 3a contains one V-shaped segment 31, and another adjacent first three-dimensional lining strip 3b contains two V-shaped segments 31. The first three-dimensional lining strip 3 corresponding to the diagonal of the thermal insulation core structure 10 contains the most V-shaped segments 31. As shown in Figure 6, in some embodiments, the first side segment 311 is inclined relative to the edge of the thermal insulation core structure 10. The number of V-shaped segments 31 contained in each first three-dimensional lining strip 3 is the same. As shown in Figure 7, in some embodiments, a transition fillet 313 is provided between the first side segment 311 and the second side segment 312 to facilitate the preparation of the first three-dimensional lining strip 3. The radius of the transition fillet 313 is set according to requirements. In some embodiments, the edge of the thermal insulation core structure 10 is formed by directly connecting the edge of the first fabric 1 and the edge of the second fabric 2. Alternatively, as shown in Figure 8, a second three-dimensional interlining strip 7 is provided between the edges of the first fabric 1 and the second fabric 2, and the first fabric 1 and the second fabric 2 are connected by the second three-dimensional interlining strip 7. In some embodiments, the first three-dimensional interlining strip 3 is arranged in multiple continuous S-shapes. As shown in Figure 9, in some embodiments, the cross-section of the first three-dimensional interlining strip 3 is a sideways U-shape, which facilitates the connection of the first three-dimensional interlining strip 3 to the first fabric 1 and the second fabric 2. Alternatively, the cross-section of the first three-dimensional interlining strip 3 is Z-shaped. In some embodiments, the height H of the first three-dimensional interlining strip 3 is 5~50mm. If the height H of the first three-dimensional interlining strip 3 is too small, the thermal insulation core layer structure 10 will be too thin, and the thermal insulation effect will be reduced. If the height H of the first three-dimensional interlining strip 3 is too large, the filling amount of the filling material 4 will be increased. Optionally, in the V-shaped segment 31, the length of the first side segment 311 is the same as the length of the second side segment 312, both being 8~50mm. The material of the first three-dimensional interlining strip 3 is one of polyester, pure cotton, and nylon. The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Therefore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, shall fall within the scope of protection of this application. In summary, the content of this specification should not be construed as a limitation of this application.HK 30137922 A 1 Claim 1. A thermal insulation core layer structure, characterized in that it comprises: a first fabric; a second fabric disposed opposite to the first fabric; a plurality of first three-dimensional strips located between the first fabric and the second fabric, one side edge of each first three-dimensional strip being connected to the first fabric, and the other side edge of each first three-dimensional strip being connected to the second fabric, adjacent first three-dimensional strips forming a plurality of filling cavities; and filler material filling the filling cavities. 2. The thermal insulation core layer structure according to claim 1, characterized in that the first three-dimensional strip includes at least one V-shaped segment, the V-shaped segment including: a first side segment; and a second side segment connected to the first side segment. 3. The thermal insulation core layer structure according to claim 2, characterized in that the area enclosed by two opposing V-shaped segments in adjacent first three-dimensional strips forms the filling cavity. 4. The thermal insulation core layer structure according to claim 2, characterized in that there is a gap between the tips of two opposing V-shaped segments in adjacent first three-dimensional strips, the gap communicating with the connected filling cavities, the width of the gap being 1~30mm. 5. The thermal insulation core layer structure according to claim 2, wherein the first side segment is parallel to one edge of the thermal insulation core layer structure. 6. The thermal insulation core layer structure according to claim 2, wherein the first side segment is inclined relative to the edge of the thermal insulation core layer structure. 7. The thermal insulation core layer structure according to claim 2, wherein a transition rounded corner is provided between the first side segment and the second side segment. 8. The thermal insulation core layer structure according to claim 1, wherein the edge of the thermal insulation core layer structure is formed by connecting the edges of the first fabric and the second fabric, or by connecting the first fabric and the second fabric through a second three-dimensional lining strip. 9. The thermal insulation core layer structure according to claim 1, wherein the first three-dimensional lining strip is arranged in multiple continuous S-shapes. 10. The thermal insulation core layer structure according to claim 1, wherein the cross-section of the first three-dimensional lining strip is U-shaped or Z-shaped. 11. The thermal insulation core layer structure according to claim 1, wherein the height of the first three-dimensional lining strip is 5~50mm.HK 30137922 A 1 Instruction Manual Attachments Figure 1 Figure 2 Figure 3 1 2 3 10 6 1 2 3 4 3 1 2 5 HK 30137922 A 2 Figure 4 Figure 5 D 6 J 311312 31 3b1 1 3 311 3a HK 30137922 A 3 Figure 6 Figure 7 Figure 8 311 1 3 1 312311 313 1 2 7 HK 30137922 A 4 Figure 9 3 H HK 30137922 A.

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