A splicable aerogel thermal mat

Abstract

This utility model discloses a splicable aerogel heat insulation pad, including an aerogel heat insulation pad body. Splicing interface components are provided at both ends of the upper surface of the aerogel heat insulation pad body. A splicing groove is provided at the center of the upper surface of the aerogel heat insulation pad body. An adhesive plate is installed at the center of the lower surface of the aerogel heat insulation pad body, and splicing blocks are installed on the adhesive plate. Through the dual splicing structure of "splicing interface components (mating groove + mating edge) + splicing groove + splicing block", the heat insulation pad can be spliced ​​horizontally (left and right edges) and vertically (upper and lower surfaces) in a three-dimensional manner, adapting to the full coverage requirements of irregular equipment surfaces. The conical mating of the mating edge and the mating groove, and the nested design of the filling ring and the filling groove, can fill the splicing gaps. At the same time, the arched elastic plate inside the filling ring can provide continuous elastic support, offsetting the gap expansion caused by temperature deformation and vibration, and maintaining a long-term sealing and heat insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of aerogel insulation pad technology, specifically a splicable aerogel insulation pad. Background Technology

[0002] With the increasing demands for performance of thermal insulation materials in industrial equipment, lighting devices (such as LED smart streetlights), and building insulation, aerogel thermal insulation pads have gradually become one of the mainstream thermal insulation materials due to their extremely low thermal conductivity and lightweight properties. However, existing aerogel thermal insulation pads still face many technical bottlenecks in practical applications. Traditional aerogel thermal insulation pads are mostly fixed-size integrated structures. When facing irregular equipment surfaces, they need to be cut and spliced ​​to achieve coverage. However, existing splicing methods mostly use simple snap-fit ​​or flat bonding, which easily leads to gaps at the splicing points, resulting in heat leakage and significantly reducing the thermal insulation effect. Moreover, the splicing structure lacks elastic adjustment capabilities, and the splicing gaps are prone to widening after being affected by temperature changes or vibrations, resulting in poor long-term stability. Therefore, improvements to the existing technology are needed. Utility Model Content

[0003] The purpose of this invention is to provide a splicable aerogel insulation pad to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a splicable aerogel heat insulation pad, comprising an aerogel heat insulation pad body, splicing interface components being provided at both ends of the upper surface of the aerogel heat insulation pad body, a splicing groove being provided at the center of the upper surface of the aerogel heat insulation pad body, and an adhesive plate being installed at the center of the lower surface of the aerogel heat insulation pad body, with splicing blocks being installed on the adhesive plate; the splicing interface component includes a mating groove formed on the aerogel heat insulation pad body, a snap-fit ​​groove being provided at the top of the mating groove, and a mating edge being provided at the edge of the aerogel heat insulation pad body through the mating groove, the mating edge and the mating groove being able to be spliced ​​together, and a conical surface being provided at the end of the splicing block, the conical surface being able to be fitted with the inner wall of the splicing groove.

[0005] As a preferred embodiment of the splicable aerogel insulation pad of this utility model, the outer wall of the conical surface is provided with a filling groove, and the inner wall of the mating groove is provided with a filling ring, the filling ring and the filling groove cooperating with each other.

[0006] As a preferred embodiment of the splicable aerogel thermal insulation pad of this utility model, the filling ring has an elastic cavity inside, and an arched elastic plate is provided inside the elastic cavity. As a preferred embodiment of the splicable aerogel insulation pad of this utility model, the inner wall of the filling ring is provided with an adhesive surface.

[0007] As a preferred embodiment of the splicable aerogel heat insulation pad of this utility model, the mating edge is provided with a rounded corner on the side wall of the mating groove, and the four corners of the inner wall of the snap-fit ​​groove are all provided with arc surfaces.

[0008] As a preferred embodiment of the splicable aerogel insulation pad of this utility model, one side of the aerogel insulation body is provided with a PUR microporous membrane and a PU membrane in sequence from the inside to the outside. The other layer of the aerogel insulation body is provided with a cotton fleece layer, a ramie fiber layer and a polytetrafluoroethylene microporous membrane layer in sequence from the inside to the outside. The bottom end of the aerogel insulation body is provided with anti-slip ridges, and a first wear-resistant layer is provided between the anti-slip ridges and the aerogel insulation body.

[0009] As a preferred embodiment of the splicable aerogel insulation pad of this utility model, the outer surface of the aerogel insulation body is provided with an insulation layer, and rubber particles are uniformly installed on the outer wall of the insulation layer.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the design of this splicable aerogel heat insulation pad is reasonable. Through a dual splicing structure of "interface components (mating groove + mating edge) + splicing groove + splicing block", the heat insulation pad achieves three-dimensional splicing in both the horizontal (left and right edges) and vertical (upper and lower surfaces), adapting to the full coverage requirements of irregular equipment surfaces; the conical fit between the mating edge and the mating groove, and the nested design of the filling ring and the filling groove, can fill the splicing gaps, while the arched elastic plate inside the filling ring can provide continuous elastic support, offsetting the gap expansion caused by temperature deformation and vibration, and maintaining the sealing and heat insulation effect for a long time. The bonding surface of the inner wall of the filling ring further enhances the fixing strength of the splice and prevents loosening; the arc surface of the snap groove and the rounded corner design of the mating edge not only reduce wear during splicing and assembly, but also disperse stress through the arc structure and improve the impact resistance of the splicing structure. Attached Figure Description

[0011] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the filling ring of this utility model; Figure 4 This is a schematic diagram of the structure of the aerogel heat insulation pad of this utility model.

[0012] In the diagram: 1. Aerogel insulation pad body; 2. Snap-fit ​​groove; 3. Mating groove; 4. Mating edge; 5. Rounded corner; 7. Arc surface; 8. Splicing groove; 9. Filler ring; 10. Adhesive plate; 11. Splicing block; 12. Conical surface; 13. Filler groove; 14. PUR microporous membrane; 15. PU membrane; 16. Rubber particles; 17. Cotton fleece layer; 18. Ramie fiber layer; 19. Polytetrafluoroethylene microporous membrane layer; 20. First wear-resistant layer; 21. Protective embossed texture. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a technical solution: In this technical solution, a splicable aerogel heat insulation pad includes an aerogel heat insulation pad body 1. Splicing interface components are provided at both ends of the upper surface of the aerogel heat insulation pad body 1. A splicing groove 8 is provided at the center of the upper surface of the aerogel heat insulation pad body 1. An adhesive plate 10 is installed at the center of the lower surface of the aerogel heat insulation pad body 1, and splicing blocks 11 are installed on the adhesive plate 10. The splicing interface components include a mating groove 3 formed on the aerogel heat insulation pad body 1. A snap-fit ​​groove 2 is formed at the top of the mating groove 3. A mating edge 4 is provided at the edge of the aerogel heat insulation pad body 1 through the mating groove 3. The mating edge 4 and the mating groove 3 can be spliced ​​together. A conical surface 12 is provided at the end of the splicing block 11, and the conical surface 12 can be fitted to the inner wall of the splicing groove 8.

[0015] In this technical solution, the aerogel insulation pad body 1 serves as the load-bearing foundation of the overall structure. The interior is made of aerogel composite reinforcing material (such as glass fiber reinforced aerogel), which takes into account both extremely low thermal conductivity and basic mechanical strength. It is the core carrier for realizing the heat insulation function. Its size can be preset according to standard specifications (such as 300mm×300mm, 500mm×500mm) according to conventional application scenarios, which facilitates modular splicing. The splicing interface components are located at the left and right edges of the upper surface of the main body, adopting a "groove-edge" corresponding design. The distance between each splicing interface component and the edge of the main body is controlled at 10-15mm to ensure that the main body is evenly stressed after splicing and avoid structural damage caused by stress concentration at the edges. The splicing groove 8 is opened in the center of the upper surface of the main body, with an inverted trapezoidal structure (the opening width is slightly larger than the bottom width of the groove), and the depth is 1 / 3-1 / 2 of the thickness of the main body. This ensures the connection strength after the splicing block 11 is inserted without damaging the core heat insulation layer of the main body. The bonding plate 10 is made of modified epoxy resin and is fixed to the center of the lower surface of the main body with a high-temperature resistant adhesive (such as silane modified polyether glue). The thickness is 2-3mm, and its size matches the bottom size of the splicing groove 8 to provide stable support for the splicing block 11. The splicing block 11 and the bonding plate 10 are integrally injection molded, and the material is the same modified epoxy resin. The length is slightly shorter than the depth of the splicing groove 8 (the difference is about 1-2mm) to avoid excessive compression of the main body during splicing. Conical surface 12: Located at the end of the splicing block 11, the taper is designed to be 30°-45° and the surface is sandblasted (roughness Ra1.6-3.2μm). On the one hand, it reduces the insertion resistance during splicing, and on the other hand, it increases the contact area with the inner wall of the splicing groove 8, thereby improving the tightness of the fit.

[0016] Horizontal splicing: Two adjacent aerogel heat insulation pad bodies 1 are connected horizontally through "fitting edge 4-fitting groove 3" - align the fitting edge 4 of the left body with the fitting groove 3 of the right body and push it in horizontally until the fitting edge 4 is completely embedded in the fitting groove 3. At this time, the top of the fitting edge 4 is in contact with the inner wall of the snap-fit ​​groove 2. The snap-fit ​​groove 2 forms a vertical limit on the fitting edge 4 to prevent vertical misalignment after splicing. Longitudinal splicing: When stacking is required, the splicing block 11 on the lower surface of the upper main body is aligned with the splicing groove 8 on the upper surface of the lower main body. The cone 12 is used as a guide to insert into the splicing groove 8 until the cone 12 is completely attached to the inner wall of the splicing groove 8. The bonding plate 10 is in close contact with the upper surface of the lower main body to fix the upper and lower main bodies and prevent them from sliding after stacking.

[0017] In some technical solutions, the outer wall of the conical surface 12 is provided with a filling groove 13, and the inner wall of the mating groove 3 is provided with a filling ring 9, which is in conjunction with the filling groove 13.

[0018] In this technical solution, the filling groove 13 is formed on the outer wall of the conical surface 12, and has an annular groove structure with a width of 1-1.5mm and a depth of 0.8-1mm. High-temperature resistant sealant (such as polyimide sealant) can be pre-applied into the groove to further improve the sealing effect. Filler ring 9: Made of ethylene propylene diene monomer (EPDM) rubber, it has excellent high and low temperature resistance (-40℃ to 150℃) and elasticity. It is fixed to the inner wall of the mating groove 3 (2-3mm away from the opening end of the mating groove 3). Its cross-section is circular (the diameter is slightly larger than the width of the filling groove 13) to ensure that it forms an interference fit when nested with the filling groove 13.

[0019] During horizontal splicing, as the mating edge 4 of the left main body is inserted into the mating groove 3 of the right main body, the filling ring 9 on the inner wall of the mating groove 3 is gradually squeezed and deformed, eventually fully embedded in the filling groove 13 of the conical surface 12 on the mating edge 4, forming a "ring-groove" sealing structure: on the one hand, the elastic deformation of the filling ring fills the tiny gap between the mating edge and the mating groove, blocking heat transfer through the gap; on the other hand, the filling groove limits the filling ring, preventing the filling ring from shifting after splicing, and ensuring long-term sealing stability.

[0020] In some technical solutions, the filling ring 9 has an elastic cavity 23 inside, and an arched elastic plate 22 is provided inside the elastic cavity 23.

[0021] In this technical solution, the elastic cavity 23 is formed inside the filling ring 9 and has an elliptical cavity structure (the major axis is parallel to the radial direction of the filling ring). It occupies 1 / 3 to 1 / 2 of the volume of the filling ring, providing deformation space for the filling ring and preventing the filling ring from breaking due to excessive compression. Arched elastic plate 22: Made of spring steel (thickness 0.1-0.2mm), it has an arched structure (the arch height faces the outside of the filling ring) and is fixed inside the elastic cavity 23 by vulcanization process. Its two ends are tightly connected to the inner wall of the elastic cavity, and it has good resilience performance. It can withstand more than 1000 compression-rebound cycles without failure.

[0022] When the filling ring 9 is embedded in the filling groove 13, the filling ring is squeezed by the inner wall of the filling groove, the volume of the elastic cavity 23 decreases, and the arched elastic plate 22 is compressed and deformed. At this time, the arched elastic plate generates a reverse elastic force, which acts on the inner wall of the filling ring, pushing the filling ring to fit tightly against the inner wall of the filling groove, further eliminating gaps. When changes in ambient temperature cause thermal expansion and contraction of the main body, or when equipment vibration causes slight displacement at the splice, the resilience of the arched elastic plate can adaptively adjust the deformation of the filling ring, maintain sealing pressure, and prevent gaps from forming. In some technical solutions, the inner wall of the filling ring 9 is provided with an arched elastic plate 24.

[0023] In this technical solution, the arched elastic plate 24 is set on the inner wall of the filling ring 9 (the surface in contact with the filling groove 13), and adopts a micro-bump structure (bump diameter 0.1-0.2mm, spacing 0.5mm). The surface of the bump is coated with pressure-sensitive adhesive (such as acrylic pressure-sensitive adhesive). The peel strength of the pressure-sensitive adhesive is ≥5N / 25mm, and it can maintain stable bonding performance in a temperature range of -20℃ to 80℃.

[0024] When the filling ring 9 is embedded in the filling groove 13, the arched elastic plate 24 on the inner wall of the filling ring is in close contact with the inner wall of the filling groove. The micro-protrusion structure increases the contact area between the bonding surface and the filling groove. The pressure-sensitive adhesive is fully bonded under the extrusion action, forming a dual fixing effect of "mechanical interlocking + chemical bonding". On the one hand, it prevents relative sliding between the filling ring and the filling groove, and on the other hand, it further blocks the heat transfer through the splice, improving the heat insulation effect.

[0025] In some technical solutions, the mating edge 4 is provided with a rounded corner 5 on the side wall of the mating groove 3, and the four corners of the inner wall of the snap-fit ​​groove 2 are provided with arc surfaces 7.

[0026] In this technical solution, the fillet 5 is formed on the side wall of the mating edge 4 located in the mating groove 3 (i.e., the insertion edge of the mating edge), with a fillet radius of 0.5-1mm. It is machined by CNC milling, with a smooth surface and no burrs, to avoid scratching the inner wall of the mating groove during assembly. Arc surface 7: It is formed at the four corners of the inner wall of the snap-fit ​​groove 2, with an arc radius of 1-1.5mm. It is also machined by CNC milling. It can disperse the stress on the inner wall of the snap-fit ​​groove and avoid the snap-fit ​​groove from cracking due to stress concentration when the mating edge is inserted.

[0027] In some technical solutions, one side of the aerogel heat insulation pad body 1 is provided with a PUR microporous membrane 14 and a PU membrane 15 from the inside to the outside. The other layer of the aerogel heat insulation pad body 1 is provided with a cotton fleece layer 17, a ramie fiber layer 18 and a polytetrafluoroethylene microporous membrane layer 19 from the inside to the outside. The bottom end of the aerogel heat insulation pad body 1 is provided with anti-slip ridges 21, and a first wear-resistant layer 20 is provided between the anti-slip ridges 21 and the aerogel heat insulation pad body 1.

[0028] In this technical solution, the PUR microporous membrane 14 is located on one side of the aerogel insulation pad body 1 (usually the outdoor facing side), with a thickness of 0.05-0.1mm, a pore size of 0.1-1μm, and a porosity of ≥80%. It has excellent waterproof properties (hydrostatic pressure resistance ≥10kPa) and breathability (moisture permeability ≥5000g / (m²・24h)), which can block rainwater penetration while releasing water vapor from the body. PU film 15: Covers the outside of PUR microporous membrane 14, with a thickness of 0.1-0.15mm. It is combined with PUR microporous membrane by hot pressing composite process and has good wear resistance (Martindale abrasion resistance ≥5000 times) and anti-aging properties (tensile strength retention rate ≥80% after 1000h of ultraviolet irradiation), protecting PUR microporous membrane from external wear. Cotton fleece layer 17: Located on the other side of the main body 1 (usually the indoor facing side or the contact side), with a thickness of 1-2mm, made of pure cotton fiber, with a soft surface, improving contact comfort, and also having a certain degree of moisture absorption and breathability; Ramie fiber layer 18: Covers the outside of cotton lint layer 17, with a thickness of 0.5-1mm. It is made of ramie fiber and polyester fiber blend (blending ratio 7:3) and has excellent antibacterial properties (bacterial inhibition rate ≥90%) and high temperature resistance (long-term use temperature ≤120℃). Polytetrafluoroethylene microporous membrane layer 19: Covers the outside of ramie fiber layer 18, with a thickness of 0.08-0.12mm and a pore size of 0.2-2μm. It has corrosion resistance (resistance to acids and alkalis, and organic solvents) and high temperature resistance (long-term operating temperature ≤260℃), and is suitable for protection in harsh environments. First wear-resistant layer 20: Located at the bottom of the main body 1 (on the side in contact with the equipment), it is made of polyurethane elastomer material with a thickness of 0.3-0.5mm and a Shore hardness of 80-85A, possessing excellent wear resistance and scratch resistance. Anti-slip ridges 21: Located on the lower surface of the first wear-resistant layer 20, they adopt a diamond-shaped grid structure (grid side length 5-10mm, ridge height 0.5-1mm) and are integrally formed by injection molding. The coefficient of friction is ≥0.8 (when in contact with a metal surface), preventing the heat insulation pad from sliding relative to the equipment surface.

[0029] In some technical solutions, an insulation layer is provided on the outside of the aerogel insulation pad body 1, and rubber particles 16 are uniformly installed on the outer wall of the insulation layer.

[0030] In this technical solution, the heat insulation layer is wrapped around the outside of the aerogel heat insulation pad body 1 (except for the splicing surface), and is made of ceramic fiber cotton with a thickness of 2-3mm and a thermal conductivity of ≤0.03W / (m・K). It forms a "double heat insulation" structure with the body to further reduce heat transfer. Rubber granules 16: Made of nitrile rubber (particle size 1-2mm), they are evenly bonded to the outer wall of the insulation layer with polyurethane adhesive at a density of 50-100 granules / cm², and have good elasticity and vibration resistance (resilience ≥80%).

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A splicable aerogel insulation pad, comprising an aerogel insulation pad body (1), characterized in that, The aerogel heat insulation pad body (1) has splicing interface components at both ends of the upper surface, a splicing groove (8) at the center of the upper surface, and a bonding plate (10) at the center of the lower surface, with splicing blocks (11) installed on the bonding plate (10). The splicing assembly includes a mating groove (3) formed on the aerogel insulation pad body (1), a snap-fit ​​groove (2) is formed at the top of the mating groove (3), and a mating edge (4) is provided at the edge of the aerogel insulation pad body (1) through the mating groove (3). The mating edge (4) and the mating groove (3) can be spliced ​​together. The end of the splicing block (11) is provided with a conical surface (12), and the conical surface (12) can be fitted to the inner wall of the splicing groove (8).

2. The splicable aerogel insulation pad according to claim 1, characterized in that, The outer wall of the conical surface (12) is provided with a filling groove (13), and the inner wall of the mating groove (3) is provided with a filling ring (9), which is mated with the filling groove (13).

3. The splicable aerogel insulation pad according to claim 2, characterized in that, The filling ring (9) has an elastic cavity (23) inside, and an arched elastic plate (22) is provided inside the elastic cavity (23).

4. The splicable aerogel insulation pad according to claim 3, characterized in that, The inner wall of the filling ring (9) is provided with an adhesive surface (24).

5. The splicable aerogel insulation pad according to claim 1, characterized in that, The mating edge (4) is provided with a rounded corner (5) on the side wall of the mating groove (3), and the four corners of the inner wall of the snap-fit ​​groove (2) are provided with arc surfaces (7).

6. The splicable aerogel insulation pad according to claim 1, characterized in that, One side of the aerogel heat insulation pad body (1) is provided with a PUR microporous membrane (14) and a PU membrane (15) from the inside to the outside. The other layer of the aerogel heat insulation pad body (1) is provided with a cotton fleece layer (17), a ramie fiber layer (18) and a polytetrafluoroethylene microporous membrane layer (19) from the inside to the outside. The bottom end of the aerogel heat insulation pad body (1) is provided with anti-slip ridges (21). A first wear-resistant layer (20) is provided between the anti-slip ridges (21) and the aerogel heat insulation pad body (1).

7. The splicable aerogel insulation pad according to claim 1, characterized in that, The aerogel insulation pad body (1) is provided with an insulation layer on the outside, and rubber particles (16) are uniformly installed on the outer wall of the insulation layer.

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