Flame-retardant leakage-proof phase change constant temperature blanket

Abstract

The utility model discloses a flame -retardant prevents the leakage's phase change constant temperature blanket, including bottom layer, the bottom layer is by the aluminium foil of outer layer and the high molecule film of inner layer compositely bonded and is formed, the four around of bottom layer is equipped with the edge pressing, and inside is formed with the packing space, be equipped with the phase change layer in the packing space, the surface layer is equipped with one side to bottom layer of phase change layer back, bottom layer, phase change layer with surface layer between form a constant temperature blanket, outer frame, the outer frame sets up in the outer periphery of constant temperature blanket, and the corner of outer frame all is equipped with the notch, any one the notch all is equipped with the locating post, between adjacent outer frame. The utility model has the beneficial effect of: solve the phase change constant temperature blanket in the prior art, all adopt the overall structure, and the installation process is more complicated, and after cutting, easy to influence the leakproofness, after the installation is completed, subsequent also inconveniently replaces or maintains to the single area, in the virtual, reduced the constant temperature blanket work efficiency's technical problem.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving building materials technology, specifically to a flame-retardant and leak-proof phase change constant temperature blanket. Background Technology

[0002] With the development of modern building technology and materials science, lightweight building envelopes have been widely used due to their ability to reduce building weight and provide good thermal insulation. However, these structures have a small heat capacity and are difficult to effectively store heat when faced with external temperature changes such as solar radiation, resulting in large temperature differences between day and night and affecting living comfort. To overcome this problem, phase change materials (PCMs) have been gradually introduced into building materials. PCMs can absorb or release a large amount of latent heat within a specific temperature range, thereby achieving effective regulation of ambient temperature.

[0003] Chinese patent application CN2020212275097 proposes a "phase change temperature-controlled energy-saving blanket," which includes an outer packaging made of aluminum foil and a polymer film composite, with the interior uniformly divided into multiple small packaging spaces containing phase change materials. Although this device reduces building energy consumption and improves indoor comfort, it adopts an integral structure, requiring additional fixing measures such as steel nails and wooden strips during on-site installation. This not only increases the difficulty of construction but may also damage the original building structure. Furthermore, due to the integral design, the energy-saving blanket is not flexible in size adjustment. If it needs to be cut according to the specific space, it may lead to damage to the seal or leakage of the phase change material, affecting the overall performance. Once installed, subsequent maintenance or replacement is difficult. For large projects or long-term use scenarios, this undoubtedly increases the later costs and workload. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a flame-retardant and leak-proof phase change constant temperature blanket. This solves the technical problem that existing phase change constant temperature blankets all adopt an integral structure, which makes the installation process cumbersome. Furthermore, subsequent cutting can easily affect the sealing performance. After installation, it is also inconvenient to replace or maintain individual areas, which reduces the working efficiency of the constant temperature blanket.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides a flame-retardant and leak-proof phase change constant temperature blanket, comprising:

[0007] The bottom layer is composed of an outer aluminum foil and an inner polymer film bonded together; the bottom layer has pressing edges around its perimeter and a packaging space is formed inside; a phase change layer is provided in the packaging space, and a surface layer is provided on the side of the phase change layer facing away from the bottom layer; a constant temperature blanket is formed between the bottom layer, the phase change layer and the surface layer.

[0008] The outer frame is located on the outer periphery of the constant temperature blanket, and each of the four corners of the outer frame has a notch. A positioning post is provided in any one of the notches. Between adjacent outer frames, two notches form an installation area, and a connector for fastening the two positioning posts is provided in the installation area. The outer frame, the bottom layer and the surface layer are all coated with a flame-retardant layer.

[0009] In some embodiments, the packaging space includes a first space and a plurality of second spaces, wherein the first space is a hexagonal cavity and any one of the second spaces is a triangular cavity.

[0010] In some embodiments, the phase change layer includes a first phase change material element and a second phase change material element, wherein the first phase change material element is disposed in the first space and the second phase change material element is disposed in the second space.

[0011] In some embodiments, the outer frame is a square frame, and the outer frame is provided with two positioning blocks and two mounting slots. The two positioning blocks are arranged at 90° on the outer frame, and the two mounting slots are arranged at 90° on the outer frame.

[0012] In some embodiments, both the positioning block and the mounting groove have a strip-shaped cross-section.

[0013] In some embodiments, the length of the positioning block and the depth of the mounting groove are both 'a', and 1cm≤a≤3cm.

[0014] In some embodiments, the connector includes a block, which is a cuboid, and has two engaging grooves at its lower end for engaging with the positioning post, and the height of the block is not higher than the notch.

[0015] In some embodiments, the block is a plastically deformable part, and bending grooves are provided on both sides of the upper end of the block.

[0016] In some embodiments, the flame-retardant layer is a magnesium hydroxide flame-retardant layer.

[0017] In some embodiments, the thickness of the magnesium hydroxide flame retardant layer is b, and 50 μm ≤ b ≤ 1 mm.

[0018] Compared with existing technologies, this utility model provides a flame-retardant and leak-proof phase change thermostatic blanket. This device achieves modular installation by setting notches with positioning posts at the four corners of the outer frame and using connectors to splice and fix adjacent outer frames. Compared to traditional integral structures that require additional fixing measures such as steel nails and wooden strips, this device effectively simplifies the construction process, improves installation efficiency, and reduces damage to the main building structure. The splicing structure allows individual thermostatic blanket units to be flexibly combined according to actual space requirements, avoiding material waste due to size mismatch. Furthermore, if a module is damaged or needs replacement, only the corresponding module needs to be disassembled, without affecting the operation of the overall system, reducing the need for later maintenance. To protect costs, the bottom layer is encapsulated by a composite of aluminum foil and polymer film, combined with a pressing structure to effectively enhance sealing performance. Meanwhile, the surface layer is coated with a flame-retardant layer, which not only improves fire resistance but also further strengthens the overall structural stability, preventing leakage of phase change materials due to external environmental changes or physical impacts. The phase change layer is located between the bottom and surface layers, achieving passive temperature regulation by encapsulating the phase change material. It effectively absorbs or releases heat, reduces indoor and outdoor temperature fluctuations, improves living comfort, and reduces air conditioning energy consumption. The installation method using positioning columns and connectors ensures a firm connection between multiple constant temperature blanket modules, preventing loosening and detachment. It is suitable for various installation environments such as walls and ceilings, and is especially suitable for large-area installation projects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the unfolded flame-retardant and leak-proof phase change constant temperature blanket provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the phase change layer structure of the flame-retardant and leak-proof phase change constant temperature blanket provided in this embodiment of the utility model.

[0021] Figure 3 This is a schematic diagram of the bottom layer structure of the flame-retardant and leak-proof phase change constant temperature blanket provided in this embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of the overall assembly of the flame-retardant and leak-proof phase change constant temperature blanket provided in this embodiment of the utility model;

[0023] Figure 5 This is the flame-retardant and leak-proof phase change constant temperature blanket provided in this embodiment of the utility model. Figure 4 Enlarged diagram of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Bottom layer; 2. Packaging space; 21. First space; 22. Second space; 3. Phase change layer; 31. First phase change material component; 32. Second phase change material component; 4. Surface layer; 5. Outer frame; 51. Notch; 511. Positioning post; 52. Positioning block; 53. Mounting groove; 6. Connector; 61. Block; 611. Engaging groove; 612. Bending groove; 7. Flame retardant layer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To address the technical problems of existing phase change thermostatic blankets, which all adopt an integral structure, making installation cumbersome and prone to affecting sealing after cutting, and making it inconvenient to replace or maintain individual areas after installation, thus reducing the efficiency of the thermostatic blanket, this utility model provides a flame-retardant and leak-proof phase change thermostatic blanket. It allows workers to easily assemble and splice the thermostatic blanket according to the construction environment, and facilitates individual repair and replacement if the thermostatic blanket in a single area fails, reducing subsequent maintenance costs.

[0027] It should be noted that the flame-retardant and leak-proof phase change constant temperature blanket described in this utility model is used in, but not limited to, the field of building energy conservation. For ease of explanation, this utility model only uses the application of the flame-retardant and leak-proof phase change constant temperature blanket in the field of building energy conservation as an example. The principle of the flame-retardant and leak-proof phase change constant temperature blanket in other types of equipment is essentially the same as that in the field of building energy conservation, and will not be described in detail here.

[0028] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a flame-retardant and leak-proof phase change constant temperature blanket according to one embodiment of the present invention. A flame-retardant and leak-proof phase change constant temperature blanket includes:

[0029] The bottom layer 1 is composed of an outer aluminum foil and an inner polymer film bonded together. The bottom layer 1 has a pressing edge around its perimeter and a packaging space 2 is formed inside. A phase change layer 3 is provided in the packaging space 2. A surface layer 4 is provided on the side of the phase change layer 3 facing away from the bottom layer 1. A constant temperature blanket is formed between the bottom layer 1, the phase change layer 3 and the surface layer 4.

[0030] The outer frame 5 is located on the outer periphery of the constant temperature blanket, and each of the four corners of the outer frame 5 has a notch 51. Each notch 51 has a positioning post 511. Between adjacent outer frames 5, two notches 51 form an installation area, and a connector 6 for fastening the two positioning posts 511 is provided in the installation area. The outer frame 5, the bottom layer 1 and the surface layer 4 are all coated with a flame retardant layer 7.

[0031] In this embodiment, the device achieves modular installation by setting notches 51 with positioning posts 511 at the four corners of the outer frame 5 and using connectors 6 to splice and fix adjacent outer frames 5. Compared with the traditional integral structure that requires additional fixing measures such as steel nails and wooden strips, this device effectively simplifies the construction process, improves installation efficiency, and reduces damage to the main building structure. The spliced ​​structure allows individual constant temperature blanket units to be flexibly combined and used according to actual space requirements, avoiding material waste due to size mismatch. At the same time, once a module is damaged or needs to be replaced, only the corresponding module needs to be disassembled, without affecting the operation of the overall system, reducing the later maintenance cost. The bottom layer 1 is made of aluminum foil and high-resolution... The thin-film composite encapsulation, combined with the edge pressing structure, effectively enhances the sealing performance. At the same time, the flame-retardant layer 7 coated on the surface layer 4 not only improves the fire resistance but also further strengthens the stability of the overall structure, preventing leakage of phase change materials caused by changes in the external environment or physical impact. The phase change layer 3 is set between the bottom layer 1 and the surface layer 4. By encapsulating the phase change material, it achieves passive temperature regulation, effectively absorbing or releasing heat, reducing indoor and outdoor temperature fluctuations, improving living comfort, and reducing air conditioning energy consumption. The installation method of the positioning column 511 and the connector 6 ensures that the connection between multiple constant temperature blanket modules is firm and not easy to loosen or fall off. It is suitable for various installation environments such as walls and ceilings, and is especially suitable for large-area laying projects.

[0032] In one embodiment, please refer to Figures 1-3 To improve the filling efficiency of the phase change layer 3 on the bottom layer 1, the packaging space 2 includes a first space 21 and several second spaces 22. The first space 21 is a hexagonal cavity, and any one of the second spaces 22 is a triangular cavity. The phase change layer 3 includes a first phase change material component 31 and a second phase change material component 32. The first phase change material component 31 is disposed in the first space 21, and the second phase change material component 32 is disposed in the second space 22.

[0033] In this embodiment, compared to the traditional rectangular design, the hexagonal cavity can achieve a higher filling density in a two-dimensional plane, reducing gaps and thus increasing the phase change material content per unit area. This helps to improve the overall energy storage capacity. The hexagonal structure has good symmetry and uniformity, which can more effectively distribute heat and ensure more uniform temperature regulation. The triangular cavity, as a supplement, can be flexibly arranged in irregular areas or edge parts to further optimize heat distribution. Both hexagons and triangles are geometrically stable shapes and are not easily deformed under external pressure, which improves the mechanical strength and durability of the entire packaging space 2. The first phase change material component 31 and the second phase change material component 32 are made of the same phase change material. Although the materials are the same, the spatial layout of different shapes can achieve a more uniform temperature distribution. For example, the hexagonal cavity is distributed in the core area to provide the main temperature regulation function, while the triangular cavity is distributed in the edge or corner areas to supplement temperature regulation and avoid local overheating or overcooling. The hexagonal cavity is suitable for large-area uniform distribution, while the triangular cavity can flexibly fill irregularly shaped spaces to ensure temperature consistency throughout the entire constant temperature blanket coverage area.

[0034] In one embodiment, please refer to Figures 1-5 To facilitate rapid assembly of the device, the outer frame 5 is a square frame with two positioning blocks 52 and two mounting slots 53. The two positioning blocks 52 are set at 90° on the outer frame 5, and the two mounting slots 53 are set at 90° on the outer frame 5. The cross-section of the positioning blocks 52 and the mounting slots 53 are both strip-shaped. The length of the positioning blocks 52 and the depth of the mounting slots 53 are both 'a', and 1cm≤a≤3cm. The connector includes a block 61, which is a cuboid. The lower end of the block 61 has two engaging slots 611 for engaging with the positioning post 511. The height of the block 61 is not higher than the notch 51. The block 61 is a plastic deformable part, and both sides of the upper end of the block 61 have bending slots 612. The flame retardant layer 7 is a magnesium hydroxide flame retardant layer 7 with a thickness of 'b', and 50μm≤b≤1mm.

[0035] In this embodiment, the outer frame 5 facilitates standardized production and transportation. The design of the positioning block 52 and the mounting groove 53 enables multiple constant temperature blanket modules to be quickly and accurately spliced ​​and fixed without additional tools or complex construction steps, greatly simplifying the installation process. The positioning block 52 and the mounting groove 53 are set at 90° to ensure a tight and accurate connection between adjacent outer frames 5, avoiding sealing problems or structural instability caused by installation errors. The length and depth of the positioning block 52 and the mounting groove 53 are adjustable between 1cm and 3cm, and can be optimized according to the needs of actual application scenarios. The design of the locking groove 611 allows the connector to be easily locked onto the positioning post 511, realizing quick splicing and fixing between modules. At the same time, since the block 61 is a plastic deformable part, it is easy to disassemble and reinstall when needed, reducing maintenance costs. Through the cooperation of the locking groove 611 and the positioning post 511, the connection between the connecting block and the positioning post 511 is ensured to be firm and reliable, preventing loosening or falling off during use, and improving the overall structural stability. The design of the end-mounted lever groove 612 facilitates manual or tool-based operation during installation or disassembly, improving construction efficiency and convenience. The height of block 61 is designed not to exceed the notch 51, ensuring seamless splicing between constant temperature blanket modules of different thicknesses. It is suitable for various installation environments such as walls and ceilings. Magnesium hydroxide, as an inorganic flame retardant, decomposes and absorbs heat and releases water vapor at high temperatures, effectively delaying the combustion process of materials and improving the fire resistance rating of the product. It is suitable for places with high fire safety requirements such as hospitals, schools, and high-rise buildings. Magnesium hydroxide flame retardant has low toxicity and good environmental protection characteristics, does not produce harmful gases, and meets the safety and environmental protection standards of modern building materials. The thickness of the flame retardant layer 7 is adjustable between 50μm and 1mm, which can be customized according to the requirements of specific application scenarios. It meets the fire resistance requirements without affecting the flexibility and other physical properties of the product. The magnesium hydroxide flame retardant layer 7 not only improves fire resistance but also enhances the durability and mechanical strength of the product, reducing damage caused by long-term use or changes in the external environment and extending the product's service life.

[0036] To better understand this utility model, the following is combined with... Figures 1 to 5The technical solution of this utility model is described in detail below: This device utilizes the characteristic of phase change material (PCM) to absorb or release a large amount of latent heat when it undergoes a solid-liquid phase change within a specific temperature range, thereby achieving intelligent regulation of the ambient temperature. By encapsulating the PCM in multiple small spaces inside the constant temperature blanket, the PCM can automatically respond and adjust heat exchange when the external temperature changes, thereby achieving the purpose of maintaining stable indoor temperature, improving living comfort, and reducing energy consumption. When the ambient temperature rises to the set range, the PCM changes from solid to liquid, absorbing excess heat. When the ambient temperature drops, the PCM returns from liquid to solid, releasing stored heat. The entire process requires no external energy input, which is a passive energy-saving technology. Each constant temperature blanket unit is independently encapsulated, including a bottom layer 1, a phase change layer 3, a surface layer 4, and an outer frame 5. The outer frame 5 has notches 51 with positioning posts 511 at its four corners. By connecting the positioning posts 511 of adjacent units with connectors 6, seamless splicing is achieved. The modules can be tightly connected to form a large area of ​​coverage, or the modules can be replaced as needed. For the installation area, clean the installation surface during installation to ensure it is flat, dry, and dust-free. If it is a wall installation, it is recommended to pre-embed light steel keel or wooden strips for auxiliary fixation. Measure the actual dimensions and plan the required number and arrangement of modules. Place the first constant temperature blanket module in the predetermined position. If fixation is required, expansion screws can be used to assist in positioning by drilling holes on the edge of the outer frame 5. Ensure that the module is flat against the installation surface to avoid wrinkles or warping. Move adjacent modules close together so that the notches 51 of their outer frames 5 are aligned. Use the connector 6 to insert vertically from above to make it engage in the groove. 611 is embedded into two positioning posts 511 respectively. Lightly press the top of the connector 6 to ensure a firm fit. Check whether the splicing gap is uniform. If necessary, fine-tune the position. New modules can be spliced ​​in both the horizontal and vertical directions. Utilize the 90° guiding effect of the positioning block 52 and the mounting groove 53 to ensure accurate angles. Multiple points can be assembled at the same time to improve construction efficiency. Finally, check whether all splicing parts are firm and whether there is any light leakage or misalignment. For key parts, such as corners and joints, reinforce them. If necessary, nails can be driven into the edge of the outer frame 5 for auxiliary fixation.

[0037] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A flame-retardant and leak-proof phase change constant temperature blanket, characterized in that, include: The bottom layer is composed of an outer aluminum foil and an inner polymer film bonded together; the bottom layer has pressing edges around its perimeter and a packaging space is formed inside; a phase change layer is provided in the packaging space, and a surface layer is provided on the side of the phase change layer facing away from the bottom layer; a constant temperature blanket is formed between the bottom layer, the phase change layer and the surface layer. The outer frame is located on the outer periphery of the constant temperature blanket, and each of the four corners of the outer frame has a notch. A positioning post is provided in any one of the notches. Between adjacent outer frames, two notches form an installation area, and a connector for fastening the two positioning posts is provided in the installation area. The outer frame, the bottom layer and the surface layer are all coated with a flame-retardant layer.

2. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 1, characterized in that: The packaging space includes a first space and several second spaces. The first space is a hexagonal cavity, and any one of the second spaces is a triangular cavity.

3. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 2, characterized in that: The phase change layer includes a first phase change material component and a second phase change material component, wherein the first phase change material component is disposed in the first space and the second phase change material component is disposed in the second space.

4. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 1, characterized in that: The outer frame is a square frame, and the outer frame is provided with two positioning blocks and two mounting slots. The two positioning blocks are set at 90° on the outer frame, and the two mounting slots are set at 90° on the outer frame.

5. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 4, characterized in that: Both the positioning block and the mounting groove have strip-shaped cross-sections.

6. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 4, characterized in that: The length of the positioning block and the depth of the mounting groove are both 'a', and 1cm≤a≤3cm.

7. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 1, characterized in that: The connector includes a block, which is a cuboid, and has two engaging grooves at its lower end. The engaging grooves are used to engage with the positioning post, and the height of the block is not higher than the notch.

8. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 7, characterized in that: The block is a plastic deformable part, and bending grooves are provided on both sides of the upper end of the block.

9. The flame-retardant and leak-proof phase change constant temperature blanket according to claim 1, characterized in that: The flame-retardant layer is a magnesium hydroxide flame-retardant layer.

10. A flame-retardant and leak-proof phase change constant temperature blanket according to claim 9, characterized in that: The thickness of the magnesium hydroxide flame retardant layer is b, and 50μm≤b≤1mm.

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