Self-sustaining air-conditioning decorative wall hangings based on phase change thermal induction and in-situ surface adsorption

Abstract

This invention discloses a self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, belonging to the field of passive air conditioning technology for human living environments. It includes a functional decorative panel assembly with a three-dimensional microscopic adsorption texture layer attached to its substrate surface; a thermal induction airflow guiding backplate, disposed on the back of the functional decorative panel assembly, forming a vertical acceleration airflow duct; a phase change heat storage material, attached to the inner side of the thermal induction airflow guiding backplate or integrated into the thermal induction airflow guiding backplate material, forming a conical structure with a high center and low sides in the vertical acceleration airflow duct; an adsorption purification module installed within the vertical acceleration airflow duct; and a volatile organic compound (VOCs) adsorption grid attached to the inner side of the functional decorative panel assembly. Utilizing the indoor temperature difference and the latent heat released by the phase change heat storage material, a thermal buoyancy field is formed within the vertical acceleration airflow duct, driving indoor air flow. This invention achieves self-sustaining air conditioning of the decorative wall hanging without electricity or noise.

Description

Technical Field

[0001] This invention relates to the field of human settlement environment control technology, specifically to a passive indoor air quality regulation (VOCs adsorption, dehumidification, dust removal) decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, which combines building thermal engineering, materials science and art design. Background Technology

[0002] As people's demands for the quality of their living environment increase, indoor air pollution control (such as formaldehyde, benzene compounds, high humidity, and suspended particulate matter) has become a focus of attention. Currently, there are two main technical routes for purifying decorative paintings, but both have significant drawbacks.

[0003] Passive static adsorption type (e.g., patent CN200520024029.X): This type of technology typically involves simply placing activated carbon packets or using carbon fiber cloth inside the back panel of the picture frame. Its fundamental drawback is the lack of airflow organization. Pollutant molecules rely solely on Brownian motion (natural diffusion) to come into contact with the adsorbent, resulting in an extremely slow adsorption rate. Furthermore, the decorative painting itself obstructs airflow, causing the adsorbent to purify only the air within a few centimeters of its perimeter, easily creating localized saturation "dead zones."

[0004] Active electromechanical driven type (e.g., patents CN201611158564.3, CN202122186910.1, etc.): This type of technology achieves forced ventilation by integrating fans, batteries, solar panels, and even sensors within the frame. While improving purification efficiency, it introduces problems such as noise (fan vibration), energy consumption, electromagnetic radiation, and short lifespan of electronic components. Furthermore, the bulky electromechanical structure undermines the delicate and tranquil artistic qualities of decorative paintings, and maintenance costs are high.

[0005] Both of these technologies treat the "painting" itself as an obstacle or a mere obstruction, failing to explore the potential of the decorative painting itself (pigments, canvas) as a functional material.

[0006] Therefore, there is a lack of innovative technology in the existing technology that can generate continuous airflow circulation like an active device without the need for electric power or noise, and can make full use of the surface area of ​​the screen itself for purification. Summary of the Invention

[0007] To address the problems of low efficiency in static paintings, high energy consumption in dynamic paintings, and cumbersome maintenance in existing technologies, the present invention aims to provide a self-sustaining air-conditioned decorative painting that utilizes phase change energy storage materials to create artificial temperature differences to drive airflow and combines the Venturi effect to accelerate mass transfer.

[0008] The present invention is achieved through the following technical solution.

[0009] This invention provides a self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, comprising: Functional decorative panel components, whose base surface is coated with a three-dimensional micro-adsorption texture layer; A heat-inducing airflow guide backplate is disposed on the back of the functional decorative panel assembly. The two are sealed together by a frame, and ventilation openings are opened at the top and bottom of the frame to form a vertical acceleration airflow channel. Phase change thermal storage material is attached to the inner side of the thermal induction guide backplate or integrated into the thermal induction guide backplate material. In the vertical acceleration air duct, it has a conical structure with a high middle and low side, which is used to regulate the thermal environment in the air duct to maintain the thermal pressure difference. The adsorption and purification module is detachably installed inside the vertical acceleration air duct; VOCs adsorption mesh is applied to the inside of functional decorative panel components to adsorb VOCs in flowing air; By utilizing the temperature difference in the indoor environment and the latent heat released by the phase change heat storage material, a thermal buoyancy field is formed in the vertical acceleration air duct, driving indoor air to enter through the vent at the bottom of the vertical acceleration air duct, flow through the adsorption and purification module, and then be discharged through the vent at the top.

[0010] Preferably, the underlying material of the functional decorative panel assembly includes a base canvas, a base canvas panel, and a three-dimensional painting drawn on the canvas with modified pigments.

[0011] Preferably, the three-dimensional micro-adsorption textured layer is prepared by mixing raw materials in the following mass ratio at room temperature: 40%~60% water-based acrylic pigment base, 5%~15% modified acrylic resin, 10%~20% oil-based pigment or water-based coating and 15%~25% porous adsorption filler; The modified acrylic resin includes silicone-modified acrylic resin, epoxy-modified acrylate resin, or silane-modified acrylic resin. The porous adsorption packing material is selected from one or more of MIL-100(Fe), ZIF-8, activated carbon micro powder, or diatomaceous earth.

[0012] As a preferred option, the three-dimensional micro-adsorption texture layer is drawn using powder deposition or 3D printing technology, with a deposition height of 2mm-10mm.

[0013] Preferably, the ventilation openings on the upper and lower edges of the functional decorative panel assembly and the heat-induced airflow guide back plate are respectively a hot airflow diffuser and a cold air capture port; the hot airflow diffuser is provided with outward and upward inclined diffuser blades; the cold air capture port is provided with inward and upward inclined guide blades.

[0014] Preferably, the phase change thermal storage material is a microcapsule encapsulated with a solid-liquid phase change material (PCM), a heat spreader, or a composite phase change mortar layer.

[0015] As a preferred option, the vertical acceleration air duct has a conical structure that is high in the middle and low on the sides, so that the spacing at the narrowest point of the air duct is no more than 15mm, forming a Venturi throat.

[0016] Preferably, a Venturi tube is connected between the middle of the phase change thermal storage material and the inner side of the functional decorative panel assembly, and an adsorption and purification module is placed in the Venturi tube.

[0017] Preferably, the adsorption purification module is detachably installed in the vertical acceleration air duct using a magnetic suction-sliding rail method.

[0018] As a preferred option, the filter material of the adsorption and purification module is a pleated activated carbon fiber felt, a porous ceramic sheet loaded with nano-photocatalysts, or a modified molecular sieve.

[0019] The present invention, by adopting the above technical solution, has the following beneficial effects: 1. Removal of indoor air pollutants: The functional decorative panel components are attached with a three-dimensional micro-adsorption texture layer. This material can directly adsorb free formaldehyde molecules in the air, effectively removing indoor air pollutants such as formaldehyde, benzene compounds, high humidity, and suspended particulate matter.

[0020] 2. Dual Purification Mechanism: The heat-induced flow guide backplate is lined with phase change thermal storage material. Hot air diffusers and cold air capture ports are located at the top and bottom of the frame, forming a conical, vertically constricted throat that accelerates the airflow, enhancing the airflow velocity through the adsorption material. Through the combination of "front-contact adsorption" and "back-side flow channel filtration," there are fewer purification dead zones, resulting in significantly higher efficiency than static carbon packs.

[0021] 3. All-weather zero-energy power: Utilizing the temperature difference in the indoor environment and the latent heat released by the phase change thermal storage material, a thermal buoyancy field is formed in the vertical acceleration air duct. With the "thermal battery" characteristics of PCM, the micro-circulation of air is maintained without any power to drive the airflow circulation.

[0022] 4. Dual function of adsorption and purification module + VOCs adsorption grid: effectively adsorbs VOCs in flowing air, and purifies indoor air in multiple ways.

[0023] 5. Artistic Invisibility Design: All functional components (adsorption mesh, flow channel) are hidden inside the frame, making the appearance indistinguishable from ordinary high-end oil paintings, and it operates silently.

[0024] 6. Long-lasting and convenient: The adsorption module adopts a magnetic quick-release design for easy replacement; MOFs materials have excellent water stability and regeneration capabilities. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a side cross-sectional airflow principle diagram of the decorative hanging picture of the present invention; Figure 2 This is a schematic diagram of the magnetic quick-release structure of the adsorption purification module of the present invention; Figure 3 This is a schematic diagram of the three-dimensional texture structure of the decorative hanging scroll of the present invention.

[0026] In the diagram, 1-1: Functionalized art panel component; 1-2: Three-dimensional microscopic adsorption texture layer; 1-3: Base canvas; 2-1: Base canvas panel; 2-2: Three-dimensional painting; 2-3: VOCs adsorption grid; 2-4: Venturi throat (for placing the adsorption and purification module); 2-5: Phase change thermal storage material; 2-6: Guide vanes; 2-7: Diffusion vanes; 2-8: Thermally induced flow guide backplate; 3-1: Slide rail; 3-2: Magnetic sealing strip; 3-3: Adsorption and purification module; 3-4: Handle. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0028] like Figure 1 As shown, this embodiment of the invention provides a self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, including a front functionalized decorative panel assembly 1-1, a back thermal induction guiding backplate 2-8, and a phase change thermal storage material 2-5. Wherein: The functional decorative panel component 1-1 has a three-dimensional micro-adhesive textured layer 1-2 attached to its base surface. The underlying material of the functional decorative panel component 1-1 includes a base canvas 1-3, a base canvas panel 2-1, and a three-dimensional painting 2-2 drawn on the canvas using modified pigments. The three-dimensional micro-adhesive textured layer 1-2 is a material that has undergone microporous treatment to increase breathability and specific surface area. (See...) Figure 3 As shown.

[0029] The heat-inducing airflow guide backplate 2-8 is set on the back of the functional decorative panel assembly 1-1. The two are sealed together by a frame. Hot airflow diffuser and cold air capture port are respectively opened on the upper and lower parts of the frame between the heat-inducing airflow guide backplate 2-8 and the functional decorative panel assembly 1-1 to form a vertical acceleration air duct.

[0030] Phase change thermal storage material 2-5 is attached to the inner side of the thermally induced flow guiding backplate 2-8 or integrated into the material of the thermally induced flow guiding backplate 2-8, and is used to regulate the thermal environment in the air duct to maintain the thermal pressure difference. The phase change thermal storage material 2-5 is distributed along the middle of the plate surface to both sides of the inner side of the thermally induced flow guiding backplate 2-8, and the height of the middle part accounts for 1 / 2 of the vertical acceleration air duct.

[0031] Phase change thermal storage material 2-5 comprises microcapsules encapsulating solid-liquid phase change material (PCM), a heat spreader, or a composite phase change mortar layer. The phase change temperature of phase change thermal storage material 2-5 is set between 18℃ and 26℃, and is used to maintain the air temperature inside the air duct higher than the external ambient temperature by absorbing or releasing heat when the ambient temperature fluctuates, thereby maintaining the thermal pressure drafting effect.

[0032] A Venturi tube 2-4 is connected between the middle of the phase change thermal storage material 2-5 and the inner side of the functional decorative panel assembly 1-1, and an adsorption and purification module 3-3 is placed in the Venturi tube 2-4.

[0033] The adsorption and purification module 3-3 is detachably installed inside the vertical acceleration air duct, see... Figure 2 As shown; the adsorption purification module 3-3 adopts a magnetic suction-slide rail quick-release structure. The front end of the adsorption purification module 3-3 is equipped with a magnetic sealing strip 3-2, the adsorption purification module 3-3 is set on the slide rail 3-1, and the tail end is equipped with a handle 3-4.

[0034] The filter material of the adsorption purification module 3-3 is a pleated activated carbon fiber felt, a porous ceramic sheet loaded with nano-photocatalyst, or a modified molecular sieve.

[0035] The longitudinal section of the vertical acceleration duct has a "wide-narrow-wide" Venturi-like structure; the middle part of the heat-induced flow guide back plate 2-8 protrudes towards the panel to form a constriction throat, and the adsorption purification module 3-3 is set in the constriction throat to enhance the airflow velocity through the adsorption material by utilizing the principle of fluid continuity.

[0036] VOCs adsorption mesh 2-3 is applied to the inside of the functional decorative panel assembly 1-1 to adsorb VOCs in the flowing air.

[0037] The three-dimensional micro-adsorption texture layer 1-2 attached to the substrate surface of the functional decorative panel component 1-1 is prepared by mixing raw materials in the following mass ratio at room temperature: 40%~60% water-based acrylic pigment base, 5%~15% modified acrylic resin, 10%~20% oil-based pigment or water-based coating and 15%~25% porous adsorption filler.

[0038] Modified acrylic resins include silicone-modified acrylic resins, epoxy-modified acrylate resins, and silane-modified acrylic resins.

[0039] The porous adsorption filler is selected from one or more of MIL-100(Fe), ZIF-8, activated carbon micro powder or diatomaceous earth, and is used to construct a porous adsorption network in water-based acrylic pigment base materials.

[0040] The three-dimensional micro-adsorption textured layer material is derived from modified acrylic resin. On the one hand, organosilicon-modified acrylic resin has excellent weather resistance and gloss and color retention: organosilicon segments significantly improve the material's ability to resist environmental factors such as ultraviolet rays, acid rain, and oxidation, and it is not easy to chalk or fade after long-term use. On the other hand, the porous adsorption filler activated carbon micro powder works synergistically with modified acrylic resin to endow the textured layer with functions such as adsorption, anti-fouling, heat insulation, and enhanced mechanical properties. It can effectively absorb and release moisture and help regulate the comfort of the microenvironment.

[0041] The three-dimensional micro-adsorption texture layers 1-2 are drawn using powder deposition or 3D printing technology, with a deposition height of 2mm-10mm.

[0042] The cold air capture port is provided with inwardly and upwardly inclined guide vanes 2-6, and the hot air diffuser port is provided with outwardly and upwardly inclined diffuser vanes 2-7; and the effective flow area of ​​the hot air diffuser port is designed to be larger than the effective flow area of ​​the cold air capture port (Sout>Sin) in order to reduce the outlet dynamic pressure loss.

[0043] The device operates on the principle of utilizing the indoor temperature difference and the latent heat released by the phase change thermal storage material to create a stable thermal buoyancy field within the vertical acceleration air duct. This drives indoor air to enter through the cold air capture port at the bottom, flow through the adsorption and purification module, and then exit through the hot air diffuser at the top. The decorative wall hanging does not contain any motors or fans that require an external power source or battery; it operates entirely based on thermodynamic and fluid dynamic mechanisms.

[0044] The present invention will be further illustrated below through different embodiments.

[0045] Example 1 (1) Structure preparation Frame construction: The frame is made of lightweight aluminum alloy, with dimensions of 600mm×800mm×50mm. The back panel is made of thermally conductive aluminum plate, and the inside is covered with a 5mm thick layer of paraffin / expanded graphite composite phase change material plate (PCM plate), with the phase change temperature set at 23℃.

[0046] Flow channel design: The back panel is stamped inward in the middle to form a constriction, making the narrowest gap of the air duct only 15mm, forming a Venturi throat. A retractable activated carbon fiber / MOFs composite filter is installed in the throat.

[0047] Air vent configuration: Full-length air inlet louvers (opening area Sin) are installed at the bottom of the frame, and full-length air outlet louvers (opening area Sout) are installed at the top, with Sout = 1.2 × Sin, to optimize the exhaust airflow field.

[0048] (2) Functional screen drawing Modified pigment: 57% by mass of water-based acrylic pigment base, 13% by mass of silicone-modified acrylic resin, 10% by mass of oil-based pigment, and 20% by mass of MIL-100(Fe) powder are added. This material not only possesses an ultra-high specific surface area (>1000 m²), but also… 2 ( / g), and its reddish-brown color can be used directly as a warm-toned pigment without additional color mixing.

[0049] Artistic Creation: The modified pigments described above were used as a three-dimensional micro-adsorption texture layer to create the subject of "Autumn Birch Forest". Using a scraper and a slurry bag, thick layers were applied to the tree trunks and leaves, resulting in an average raised height of 4mm. The cured pigment layer formed a "solid adsorption bed" with abundant micropores.

[0050] (3) Overall regulation performance The decorative painting prepared in the above embodiments is hung in a newly renovated room. The three-dimensional pigment layer on the front directly adsorbs free formaldehyde molecules in contact with the image; the hot-pressed channel on the back induces air micro-circulation around the clock, continuously treating suspended pollutants in the upper and middle parts of the room. At the same time, the adsorption material has a certain humidity-regulating function, absorbing moisture when the indoor humidity is too high and releasing moisture when it is dry, thus helping to regulate the comfort of the microenvironment.

[0051] Example 2 (1) Structure preparation Frame construction: The frame is made of lightweight aluminum alloy, with dimensions of 600mm×800mm×50mm. The back panel is made of thermally conductive aluminum plate, and the inside is covered with an 8mm thick layer of paraffin / expanded graphite composite phase change material plate (PCM plate), with the phase change temperature set at 26℃.

[0052] Flow channel design: The back panel is stamped inward in the middle to form a constriction, making the narrowest gap of the air duct only 20mm, forming a Venturi throat. A retractable activated carbon fiber / MOFs composite filter is installed in the throat.

[0053] Air vent configuration: Full-length air inlet louvers (opening area Sin) are installed at the bottom of the frame, and full-length air outlet louvers (opening area Sout) are installed at the top, with Sout = 1.2 × Sin, to optimize the exhaust airflow field.

[0054] (2) Functional screen drawing Modified pigment: 40% by weight of waterborne acrylic pigment base, 15% by weight of epoxy-modified acrylic resin, 20% by weight of waterborne coating, and 25% by weight of ZIF-8 powder. This material not only possesses an ultra-high specific surface area (>1000 m²), but also… 2 ( / g), and its milky white color can be used directly as a warm-toned pigment without additional color mixing.

[0055] Artistic Creation: The modified pigments described above were used as a three-dimensional micro-adsorption texture layer to create the subject of "Autumn Birch Forest". Using a scraper and a slurry bag, thick layers were applied to the tree trunks and leaves, resulting in an average raised height of 5mm. The cured pigment layer formed a "solid adsorption bed" with abundant micropores.

[0056] (3) Overall regulation performance The decorative painting prepared in the above embodiments is hung in a newly renovated room. The three-dimensional pigment layer on the front directly adsorbs free formaldehyde molecules in contact with the image; the hot-pressed channel on the back induces air micro-circulation around the clock, continuously treating suspended pollutants in the upper and middle parts of the room. At the same time, the adsorption material has a certain humidity-regulating function, absorbing moisture when the indoor humidity is too high and releasing moisture when it is dry, thus helping to regulate the comfort of the microenvironment.

[0057] Example 3 (1) Structure preparation Frame construction: The frame is made of lightweight aluminum alloy, with dimensions of 600mm×800mm×50mm. The back panel is made of thermally conductive aluminum plate, and the inside is covered with a 6mm thick layer of paraffin / expanded graphite composite phase change material plate (PCM plate), with the phase change temperature set at 18℃.

[0058] Flow channel design: The back panel is punched inward in the middle to form a constriction, making the narrowest gap of the air duct only 18mm, forming a Venturi throat. A retractable activated carbon fiber / MOFs composite filter is installed in the throat.

[0059] Air vent configuration: Full-length air inlet louvers (opening area Sin) are installed at the bottom of the frame, and full-length air outlet louvers (opening area Sout) are installed at the top, with Sout = 1.2 × Sin, to optimize the exhaust airflow field.

[0060] (2) Functional screen drawing Modified pigment: A mixture of 60% water-based acrylic pigment base, 5% silane-modified acrylic resin, 20% oil-based pigment, and 15% activated carbon micropowder is added. This material not only possesses an ultra-high specific surface area (>1000 m²), but also… 2 ( / g), and its matte black color can be used directly as a pigment without additional color mixing.

[0061] In this embodiment, activated carbon micro powder, as a porous carbon material, is used in the water-based acrylic pigment base system to form a porous adsorption network, effectively enhancing the adsorption, permeability and stability of the pigment.

[0062] Artistic Creation: The modified pigments described above were used as a three-dimensional micro-adsorption texture layer to create the subject of "Autumn Birch Forest". Using a scraper and a slurry bag, thick layers were applied to the tree trunks and leaves, resulting in an average raised height of 6mm. The cured pigment layer formed a "solid adsorption bed" with abundant micropores.

[0063] (3) Overall regulation performance The decorative painting prepared in the above embodiments is hung in a newly renovated room. The three-dimensional pigment layer on the front directly adsorbs free formaldehyde molecules in contact with the image; the hot-pressed channel on the back induces air micro-circulation around the clock, continuously treating suspended pollutants in the upper and middle parts of the room. At the same time, the adsorption material has a certain humidity-regulating function, absorbing moisture when the indoor humidity is too high and releasing moisture when it is dry, thus helping to regulate the comfort of the microenvironment.

[0064] This invention has the following characteristics: Positive Technology Empowerment – ​​A Three-Dimensional Microscopic Adsorption Texture Layer: Unlike traditional decorative paintings that merely act as a barrier, this invention introduces modification technology during the pigment preparation stage. High specific surface area adsorbent materials (such as MIL-100(Fe) metal-organic frameworks and modified activated carbon micropowder) are in situ doped into acrylic, oil, or paint pigments. Using techniques like stencil painting, relief painting, or 3D printing, a physical deposition thickness of 2-10 mm is achieved. This porous three-dimensional structure increases the surface area of ​​the artwork several times compared to ordinary flat paintings, directly serving as the first barrier to capture indoor free VOCs.

[0065] Backside technology empowers – phase change thermal drive and Venturi acceleration.

[0066] Thermo-pressure driven: A vertical acceleration air duct is built on the back of the picture frame to generate thermal buoyancy by utilizing the temperature gradient in the vertical direction of the room (hot at the top and cold at the bottom).

[0067] Phase change thermal induction: To address the problem of thermal pressure failure caused by small indoor temperature differences (such as in constant temperature rooms), phase change thermal storage material (PCM) is integrated into the thermal induction guide back plate. The PCM absorbs heat and melts to store energy during the day, and solidifies and releases heat at night or when the environment cools down, so that the air temperature inside the duct is always slightly higher than that outside, maintaining a stable thermal pressure difference and ensuring a continuous "chimney effect".

[0068] Venturi Acceleration: The vertical acceleration duct cross-section is designed with a "wide-narrow-wide" structure. According to Bernoulli's principle, the airflow velocity increases and the static pressure decreases when the airflow passes through the throat narrowing. Placing the adsorption purification module here forces the airflow to penetrate the adsorption channels at high speed, significantly improving the mass transfer efficiency of a single purification cycle.

[0069] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption, characterized in that, include: A functional decorative panel component (1-1) has a three-dimensional micro-adsorption texture layer (1-2) attached to its substrate surface. A heat-induced airflow guide backplate (2-8) is disposed on the back of the functional decorative panel assembly (1-1). The two are sealed together by a frame, and ventilation openings are provided at the top and bottom of the frame to form a vertical acceleration airflow channel. Phase change thermal storage material (2-5) is attached to the inner side of the thermally induced flow guide backplate (2-8) or integrated into the thermally induced flow guide backplate (2-8) material. It has a conical structure with a high middle and low side in the vertical acceleration air duct, which is used to regulate the thermal environment in the air duct to maintain the thermal pressure difference. The adsorption and purification module (3-3) is detachably installed in the vertical acceleration air duct; VOCs adsorption mesh (2-3) is applied to the inside of the functional decorative panel assembly (1-1) to adsorb VOCs in the flowing air; By utilizing the temperature difference in the indoor environment and the latent heat released by the phase change thermal storage material (2-5), a thermal buoyancy field is formed in the vertical acceleration air duct, driving indoor air to enter through the vent at the bottom of the vertical acceleration air duct, flow through the adsorption and purification module (3-3), and then be discharged through the vent at the top.

2. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption as described in claim 1, characterized in that, The underlying material of the functional decorative panel component (1-1) includes a base canvas (1-3), a base canvas panel (2-1), and a three-dimensional painting (2-2) drawn on the canvas with modified pigments.

3. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption as described in claim 1, characterized in that, The three-dimensional micro-adsorption textured layer (1-2) was prepared by mixing the raw materials in the following mass ratio at room temperature: 40%~60% water-based acrylic pigment base, 5%~15% modified acrylic resin, 10%~20% oil-based pigment or water-based coating and 15%~25% porous adsorption filler; The modified acrylic resin includes silicone-modified acrylic resin, epoxy-modified acrylate resin, or silane-modified acrylic resin. The porous adsorption packing material is selected from one or more of MIL-100(Fe), ZIF-8, activated carbon micro powder, or diatomaceous earth.

4. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption as described in claim 1, characterized in that, The three-dimensional micro-adsorption texture layer (1-2) is drawn using powder deposition or 3D printing technology, with a deposition height of 2mm-10mm.

5. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 1, characterized in that, The ventilation openings on the upper and lower edges of the functional decorative panel assembly (1-1) and the heat-induced airflow guide back panel (2-8) are respectively the heat flow diffusion opening and the cold air capture opening; The hot air diffuser is provided with outward and upward inclined diffuser blades (2-7); the cold air capture port is provided with inward and upward inclined guide blades (2-6).

6. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 1, characterized in that, Phase change thermal storage materials (2-5) are microcapsules, heat exchange plates, or composite phase change mortar layers encapsulated with solid-liquid phase change material PCM.

7. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 1, characterized in that, The vertical acceleration air duct has a conical structure that is high in the middle and low on the sides, so that the spacing at the narrowest point of the air duct is no more than 15mm, forming a Venturi throat.

8. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 1, characterized in that, A Venturi throat (2-4) is connected between the middle of the phase change thermal storage material (2-5) and the inner side of the functional decorative panel assembly (1-1), and an adsorption and purification module (3-3) is placed in the Venturi throat (2-4).

9. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 8, characterized in that, The adsorption purification module (3-3) is detachably installed in the vertical acceleration air duct using a magnetic suction-sliding rail method.

10. The self-sustaining air-conditioning decorative wall hanging based on phase change thermal induction and in-situ surface adsorption according to claim 8, characterized in that, The filter material of the adsorption purification module (3-3) is a pleated activated carbon fiber felt, a porous ceramic sheet loaded with nano-photocatalyst, or a modified molecular sieve.

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