Embedded photocatalytic fiber wall cloth system
By using an embedded photocatalytic fiber wall covering system, combined with a VOC sensor and a UV-LED light source, the problems of space occupation and poor adhesion of photocatalytic materials in traditional air purifiers are solved, achieving efficient air purification and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional air purifiers take up space and are inconsistent with interior decoration; ordinary wallpaper has no purification ability; and existing photocatalytic materials have poor adhesion, are easy to fall off, and have a narrow response spectrum.
An embedded photocatalytic fiber wallcovering system is designed, comprising a wallcovering substrate layer and an embedded photocatalytic fiber membrane layer. It combines a VOC sensor, a micro fan, a UV-LED light source and a light sensor. A micropore array is prepared by electrospinning technology and embedded in the photocatalytic fiber membrane to achieve dynamic light intensity regulation and linkage control.
It improves the utilization rate of photocatalytic materials, is easy to maintain, reduces maintenance costs, is compatible with interior decoration, and has a significant air purification effect with a formaldehyde degradation rate of over 90%.
Smart Images
Figure CN223976184U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building materials and air purification technology, and relates to a fiber wall covering system. Background Technology
[0002] Traditional air purifiers are mostly standalone devices, taking up space and often clash with interior design styles. Ordinary wallpaper only serves a decorative function and has no air purification capabilities. Existing photocatalytic materials applications (such as spray coatings) suffer from problems such as poor adhesion, easy peeling, and narrow response spectrum. Summary of the Invention
[0003] To overcome the shortcomings of existing technologies, this utility model provides an embedded photocatalytic fiber wall covering system, which improves the utilization rate of photocatalytic materials and is easy to maintain.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An embedded photocatalytic fiber wallcovering system includes a wallcovering substrate layer and an embedded photocatalytic fiber membrane layer. The wallcovering substrate layer covers the embedded photocatalytic fiber membrane layer. The embedded photocatalytic fiber membrane layer includes an outer frame, a photocatalytic fiber membrane, a VOC sensor, and a micro fan. The four sides of the photocatalytic fiber membrane are connected to the edge of the outer frame. The VOC sensor and the micro fan are installed on the edge. The VOC sensor is linked to a linkage module that receives VOC sensor data in real time and sends a start command to the micro fan when the sensor value exceeds a preset air quality threshold. The linkage module is connected to the switch of the micro fan.
[0006] Furthermore, a light sensor, a miniature fan, and a UV-LED light source are also installed on the frame. The light sensor is connected to a UV control module that receives the light sensor signal and sends a start command to the UV-LED light source when the sensor value is less than a preset light threshold. The UV control module is connected to the switch of the UV-LED light source.
[0007] The UV-LED light source has a wavelength range of 365-450nm, and the light intensity is dynamically adjusted according to the ambient light intensity.
[0008] Furthermore, the surface of the wallpaper substrate layer is provided with a micropore array, and the embedded photocatalytic fiber membrane is prepared by electrospinning and embedded in the micropores.
[0009] Preferably, the embedded photocatalytic fiber membrane comprises polyacrylonitrile and carbon-doped titanium dioxide.
[0010] The micropore array has a pore size of 0.5-1 mm and a porosity of 30-50%.
[0011] The photocatalytic fiber membrane is detachably connected to the outer frame around its perimeter.
[0012] The specific surface area of the photocatalytic fiber membrane is >20 m². 2 / g, fiber diameter 50-200nm.
[0013] The main benefits of this invention are: improved utilization of photocatalytic materials and convenient maintenance. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of an embedded photocatalytic fiber wallcovering system, where 1 is the wallcovering substrate layer and 2 is the embedded photocatalytic fiber membrane layer.
[0015] Figure 2 This is a schematic diagram of an embedded photocatalytic fiber membrane.
[0016] Figure 3 This is a control principle diagram of an embedded photocatalytic fiber wallcovering system. Detailed Implementation
[0017] The present invention will now be further described with reference to the accompanying drawings.
[0018] Reference Figures 1-3 An embedded photocatalytic fiber wallcovering system includes a wallcovering substrate layer 1 and an embedded photocatalytic fiber membrane layer 2. The wallcovering substrate layer 1 covers the embedded photocatalytic fiber membrane layer 2. The embedded photocatalytic fiber membrane layer 2 includes an outer frame 21, a photocatalytic fiber membrane 22, a VOC sensor 23, and a micro fan 24. The four sides of the photocatalytic fiber membrane 22 are connected to the edge of the outer frame 21. The VOC sensor 23 and the micro fan 24 are installed on the edge. The VOC sensor 23 is connected to a linkage module 25, which receives VOC sensor data in real time and sends a start command to the micro fan when the sensor value exceeds a preset air quality threshold. The linkage module is connected to the switch of the micro fan.
[0019] Furthermore, a light sensor 26 and a UV-LED light source 27 are also installed on the frame. The light sensor 26 is connected to a UV control module 28, which receives light sensor signals and sends a start command to the UV-LED light source when the sensor value is less than a preset light threshold. The UV control module 28 is connected to the switch of the UV-LED light source 27. This solution can also use a common LED light source.
[0020] In this embodiment, the linkage module 25 and the UV control module 28 can be integrated onto a single control chip or controller. Both the linkage module 25 and the UV control module 28 are connected to a power supply module, which can also be integrated onto the control chip or controller. The power supply module simultaneously provides power to the VOC sensor 23, the micro fan 24, the light sensor 26, and the UV-LED light source 27. The power supply module can be a regulated power supply connected to AC mains, or it can be a rechargeable battery.
[0021] Furthermore, the surface of the wall covering substrate layer 1 is provided with a micropore array, and the embedded photocatalytic fiber membrane is prepared by electrospinning and embedded in the micropores.
[0022] Preferably, the embedded photocatalytic fiber membrane 2 comprises polyacrylonitrile and carbon-doped titanium dioxide.
[0023] In this embodiment, the pore size of the micropore array is 0.5-1 mm, and the porosity is 30-50%.
[0024] The UV-LED light source has a wavelength range of 365-450nm, and the light intensity is dynamically adjusted according to the ambient light intensity.
[0025] The photocatalytic fiber membrane is detachably connected to the outer frame on all four sides, for example, by magnetic attraction.
[0026] The specific surface area of the photocatalytic fiber membrane is >20 m². 2 / g, fiber diameter 50-200nm.
[0027] The miniature fan in this embodiment is a miniature bladeless fan with a power of ≤5W.
[0028] The control logic in this embodiment is as follows: when the VOC concentration > 0.08 mg / m³ 3 The fan will start automatically when the light intensity is less than 200 lux, and the UV-LED supplemental lighting will be turned on automatically.
[0029] The photocatalytic fiber membrane can be completely disassembled and then washed with water or regenerated at high temperature.
[0030] When the solution in this embodiment is installed as wallpaper in a room, the formaldehyde degradation rate is >90% within 24 hours (tested according to GB / T18883-2022 standard). The wallpaper thickness is ≤2mm, compatible with conventional interior decoration needs. The wallpaper system has a replacement cycle of ≥6 months, reducing maintenance costs by 60%.
[0031] Example 1: The solution in this example is applied to household photocatalytic wall coverings. The implementation process is as follows:
[0032] Material preparation: Substrate: 80 g / m² 2The nonwoven fabric is laser-drilled to form a micropore array with a pore diameter of 0.8 mm and a porosity of 40%.
[0033] Fiber membrane: A fiber membrane with a thickness of 0.1 mm was prepared by electrospinning of a mixed solution of polyacrylonitrile (PAN, 12 wt%) and carbon-doped titanium dioxide (3 wt%).
[0034] Installation process: A miniature fan (50×20×10mm, wind speed 0.5m / s) and a UV-LED light strip (wavelength 405nm, adjustable light intensity range 10-100μW / cm²) are integrated on the upper edge of the outer frame. 3 ).
[0035] Test data: in a sealed 12m 3 Formaldehyde was injected into the experimental chamber to an initial concentration of 1.2 mg / m³. 3 After 24 hours of system startup, the concentration dropped to less than 0.1 mg / m³. 3 .
[0036] Power consumption ≤3W / m 2 Noise level <30dB.
[0037] The embodiments described in this specification are merely examples of implementations of the inventive concept and are for illustrative purposes only. The scope of protection of this utility model should not be considered limited to the specific forms described in these embodiments; rather, it extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.
Claims
1. An embedded photocatalytic fiber wall cloth system, characterized by, The wall cloth substrate layer covers the embedded photocatalytic fiber membrane layer, and the embedded photocatalytic fiber membrane layer comprises an outer frame, a photocatalytic fiber membrane, a VOC sensor and a micro fan, the photocatalytic fiber membrane is connected to the frame of the outer frame at four corners, the VOC sensor and the micro fan are installed on the frame, the VOC sensor is connected with a linkage module for receiving data of the VOC sensor in real time and sending a start instruction to the micro fan when the sensor value exceeds a preset air quality threshold, and the linkage module is connected with a switch of the micro fan.
2. The embedded photocatalytic fiber wall cloth system according to claim 1, wherein, A light sensor and a micro fan and a UV-LED light source are also installed on the frame, the light sensor is connected with a UV control module for receiving a light sensor signal and sending a start instruction to the UV-LED light source when the sensor value is less than a preset light threshold, and the UV control module is connected with a switch of the UV-LED light source.
3. The embedded photocatalytic fiber wall cloth system according to claim 2, wherein, The wavelength range of the UV-LED light source is 365-450 nm, and the light intensity is dynamically adjusted according to the environmental light intensity.
4. An embedded photocatalytic fiber wall cloth system according to any one of claims 1 to 3, wherein The surface of the wall cloth substrate layer is provided with a micropore array, the embedded photocatalytic fiber membrane is prepared by electrospinning and embedded in the micropore.
5. An embedded photocatalytic fiber wall cloth system according to any one of claims 1 to 3, wherein The embedded photocatalytic fiber membrane comprises polyacrylonitrile and carbon-doped titanium dioxide.
6. The embedded photocatalytic fiber wall cloth system according to claim 4, wherein, The pore size of the micropore array is 0.5-1 mm, and the porosity is 30-50%.
7. An embedded photocatalytic fiber wall cloth system according to any one of claims 1 to 3, wherein The photocatalytic fiber membrane is detachably connected to the frame of the outer frame at four corners.
8. An embedded photocatalytic fiber wall cloth system according to any one of claims 1 to 3, wherein The specific surface area of the photocatalytic fiber membrane is >20 m 2 / g, fiber diameter 50-200 nm.