Car armrest box with integrated disinfection function

Abstract

The utility model provides a kind of integrated disinfection function's car handrail box, it is related to the technical field of automobile accessories, car handrail box includes box and lid, further include photocatalyst disinfection unit, photocatalyst disinfection unit includes reflector and blue light source, reflector is set to the inside wall of box, its inner surface is coated with photocatalyst layer;Blue light source is set to reflector, and its emitting direction is towards the inner wall of reflector setting. By integrating photocatalyst disinfection unit in handrail box inside wall, seamless combination of disinfection function and storage space is realized. The combination design of reflector and photocatalyst layer makes full use of photocatalytic principle, and continuously disinfects and purifies the space in the box under the excitation of blue light source. The scheme avoids the space occupation and security risk of traditional disinfection mode, and provides a kind of compact structure, safe to use, lasting effect handrail box disinfection solution.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an automotive armrest box with integrated disinfection function. Background Technology

[0002] As a common storage space inside a car, the armrest box is often in a closed environment, making it prone to bacterial growth and unpleasant odors. While traditional armrest boxes are equipped with lighting, this only addresses visibility at night and does not effectively disinfect the interior. Food scraps, leather volatiles, and other contaminants accumulate in this enclosed space, not only producing unpleasant smells but also potentially becoming a breeding ground for bacteria, posing a potential threat to the health of drivers and passengers.

[0003] Currently, there are some independent disinfection products on the market. For example, patent CN109017588A discloses a car interior disinfection and sterilization armrest box, which uses ultraviolet lamps and ozone generators for disinfection and sterilization. However, these disinfection and sterilization devices require additional installation and occupy valuable car interior space. Ultraviolet disinfection poses a risk of radiation leakage, and long-term use can accelerate the aging of plastic parts and leather. While ozone disinfection is effective, high concentrations of ozone can also cause irreversible damage to the materials inside the car and may harm the human respiratory system. Utility Model Content

[0004] In view of this, this utility model proposes a car armrest box with integrated disinfection function to solve the problems of existing armrest box disinfection devices occupying a large space and posing safety hazards.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a car armrest box with integrated disinfection function, including a box body and a box cover, and also includes a photocatalytic disinfection unit, wherein the photocatalytic disinfection unit includes: A reflector is installed on the inner wall of the box, and its inner surface is coated with a photocatalytic layer; The blue light source is located inside the reflector, with its light emission direction facing the inner wall of the reflector.

[0006] Based on the above technical solution, preferably, the photocatalyst layer is a nitrogen-doped titanium dioxide material.

[0007] Based on the above technical solution, preferably, the wavelength of the blue LED light source is 450-470nm.

[0008] Based on the above technical solution, preferably, the thickness of the photocatalyst layer is 100-500nm, and the diameter of the nanoparticles in the nitrogen-doped titanium dioxide photocatalyst layer is 20-50nm.

[0009] Based on the above technical solution, preferably, the inner wall of the box is provided with an installation cavity, the reflector is embedded in the installation cavity and is in the shape of a horn, the large end opening of the reflector is flush with the surface of the inner wall of the box, and the blue light source is disposed inside the small end of the reflector.

[0010] Based on the above technical solution, preferably, the photocatalytic disinfection unit further includes a fixing base, which is fixedly disposed in the mounting cavity, the reflector is fixedly disposed in the fixing base, a lamp source substrate is fixedly disposed on the bottom surface of the fixing base, and the blue light source is fixedly disposed on the lamp source substrate.

[0011] Based on the above technical solution, preferably, a white light source is also provided on the lamp source substrate, the white light source is located inside the small end of the reflector, and the white light source is used to provide lighting inside the box.

[0012] Based on the above technical solution, preferably, the photocatalytic disinfection unit further includes a protective cover, which is fixedly installed at the opening end of the fixing base, and the surface of the protective cover is provided with a plurality of ventilation holes, and the protective cover is made of transparent material.

[0013] Based on the above technical solution, preferably, one or more photocatalytic disinfection units are provided on the inner side wall of the box.

[0014] Based on the above technical solution, preferably, a fan is also provided on the inner side wall of the box to promote airflow inside the box.

[0015] The present invention has the following advantages over the prior art: (1) By integrating the photocatalytic disinfection unit into the inner wall of the armrest box, a seamless combination of disinfection function and storage space is achieved. The combined design of the reflector and photocatalytic layer fully utilizes the photocatalytic principle, continuously disinfecting and purifying the space inside the box under the excitation of blue light source. This solution avoids the space occupation and safety hazards of traditional disinfection methods, and provides a compact, safe, and long-lasting armrest box disinfection solution. The components work together to effectively solve the problems of bacterial growth and odor generation in enclosed spaces without affecting the original function of the armrest box.

[0016] (2) By setting the photocatalytic layer as nitrogen-doped titanium dioxide, the band structure of traditional titanium dioxide is changed through nitrogen doping, extending its photoresponse range from ultraviolet light to the visible light region. This modification enables the photocatalytic layer to be effectively activated using blue light with a wavelength of 450-470 nm, overcoming the limitation that traditional TiO2 can only work under ultraviolet irradiation. Nitrogen doping not only improves photocatalytic activity but also enhances the material's performance in low-light environments.

[0017] (3) By integrating a white light source on the inner side of the small end of the reflector, the intelligent switching between the armrest box's lighting and disinfection functions is realized: when the lid is opened, the white LED automatically lights up to provide glare-free lighting, making it convenient for users to take and put away items; after the lid is closed, it automatically switches to the blue light disinfection mode, using photocatalysis to continuously purify the air inside the box. This dual-light source collaborative working mode not only meets the user's basic needs for storage space lighting, but also ensures the continuous disinfection effect in a sealed state.

[0018] (4) By installing a fan inside the box, the fan acts as an airflow driving element, breaking the air stagnation state of the sealed space, allowing the air inside the box to circulate internally, so that pollutants can fully contact the photocatalyst layer, improve photocatalytic efficiency, and thus improve disinfection efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the car armrest box disclosed in this utility model; Figure 2 This is an exploded view of the photocatalytic disinfection unit disclosed in this utility model; Figure 3 This is a top view of the car armrest box disclosed in this utility model without the cover; Figure 4 for Figure 3 Planar sectional view at point AA; Figure label: 1. Cabinet; 2. Cabinet lid; 3. Photocatalytic disinfection unit; 30. Photocatalytic layer; 31. Reflector; 32. Blue light source; 11. Mounting cavity; 33. Mounting base; 34. Lamp base board; 35. White light source; 36. Protective cover; 361. Vent hole; 4. Fan. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1As shown, combined with Figure 2-4 This utility model discloses an integrated disinfection function car armrest box, including a box body 1, a box cover 2 and a photocatalytic disinfection unit 3.

[0023] The basic structure of the car armrest box consists of the box body 1 and the lid 2. The box body 1 provides storage space for items and also provides installation space and a suitable environment for the photocatalytic disinfection unit 3. The box body 1 serves as the main load-bearing structure, and its inner wall provides a fixed position for the disinfection unit. The lid 2 acts as a seal, creating a relatively enclosed space when closed, which is beneficial for the disinfection process. This design allows the disinfection function to be organically integrated with the original structure of the armrest box without requiring additional space inside the vehicle.

[0024] The photocatalytic disinfection unit 3 is the core innovative component of this solution. Its integrated design within the inner wall of the housing 1 achieves a unified disinfection function with the armrest box. This unit achieves disinfection through photocatalysis, which is safer and more environmentally friendly than traditional disinfection methods. Its integrated design avoids the space occupation problem caused by independent disinfection equipment, while eliminating the safety hazards of traditional disinfection methods such as ultraviolet light or ozone.

[0025] Specifically, the photocatalytic disinfection unit 3 includes a reflector 31 and a blue light source 32.

[0026] The reflector 31, as a key component of the photocatalytic disinfection unit 3, has a dual function: on the one hand, it provides a carrier for the photocatalytic layer 30; on the other hand, it optimizes light energy utilization through its reflective properties. The inner surface of the reflector 31 is coated with the photocatalytic layer 30, making it an active interface for the photocatalytic reaction. Simultaneously, the special shape design of the reflector 31 effectively reflects and evenly distributes the light emitted by the light source, improving the light coverage of the photocatalytic layer 30 and thus enhancing the disinfection effect.

[0027] The photocatalytic layer 30 is the core material layer for achieving the disinfection function. Under light conditions, it can generate highly oxidizing active substances. When exposed to light of an appropriate wavelength, a photocatalytic reaction occurs on the surface of the photocatalytic layer 30, and the generated active oxygen species can decompose organic pollutants and kill microorganisms. The photocatalytic layer 30 enables the armrest box to have continuous and automatic disinfection capabilities without the need for any chemical disinfectants, ensuring safety and leaving no residue.

[0028] The blue light source 32 provides excitation energy to the photocatalyst layer 30, and its specific wavelength of light can effectively activate the photocatalyst material. The light source is located inside the reflector 31 to ensure that the light acts directly on the photocatalyst layer 30, improving energy utilization efficiency. Blue light is safer than ultraviolet light, does not produce harmful radiation, and does not accelerate the aging of materials inside the vehicle. At the same time, the blue light source 32 is small in size and low in energy consumption, making it suitable for long-term use in limited spaces such as the car's armrest box.

[0029] By integrating the photocatalytic disinfection unit 3 into the inner wall of the armrest box, a seamless combination of disinfection function and storage space is achieved. The combined design of the reflector 31 and the photocatalytic layer 30 fully utilizes the principle of photocatalysis, continuously disinfecting and purifying the space inside the box under the excitation of the blue light source 32. This solution avoids the space occupation and safety hazards of traditional disinfection methods, providing a compact, safe, and long-lasting disinfection solution for armrest boxes. The components work together to effectively solve the problems of bacterial growth and odor generation in enclosed spaces without affecting the original function of the armrest box.

[0030] In some implementation methods, the photocatalyst layer 30 in this embodiment is a nitrogen-doped titanium dioxide material. By doping with nitrogen, the band structure of traditional titanium dioxide is altered, extending its photoresponse range from ultraviolet light to the visible light region. This modification allows the photocatalyst layer 30 to be effectively activated using blue light with a wavelength of 450-470 nm, overcoming the limitation that traditional TiO2 must be exposed to ultraviolet light to function. Nitrogen doping not only improves photocatalytic activity but also enhances the material's performance in low-light environments, making it particularly suitable for applications with limited lighting conditions, such as automotive armrest boxes.

[0031] Specifically, traditional TiO2 requires ultraviolet light (<387nm) for excitation, while nitrogen doping introduces impurity energy levels into the band gap of TiO2, allowing visible light (such as 450-470nm blue light) to excite electron transitions and generate electron-hole pairs (e-hole pairs). - -h + The interaction of excited electron-hole pairs with air: h + + H2O → •OH (hydroxyl radical), e - + O2 → •O2 - (Superoxide radicals) These free radicals can efficiently decompose organic matter and inactivate bacteria / viruses.

[0032] Bacteria and VOCs in the air inside the chamber come into contact with the photocatalytic coating surface. Under blue light excitation, N-TiO2 produces •OH and •O2. - It decomposes pollutants. For bacteria / viruses, it oxidizes cell membranes / proteins under photocatalytic reaction, leading to inactivation. For odor molecules (such as formaldehyde and hydrogen sulfide), it mineralizes them into CO2 and H2O under photocatalytic reaction.

[0033] By specifying nitrogen-doped titanium dioxide as the photocatalyst material and combining it with a specific blue light wavelength of 450-470nm, a highly efficient and synergistic photocatalytic disinfection system was constructed. This proprietary combination of material and light source enables the armrest box disinfection unit to achieve effects comparable to traditional ultraviolet disinfection in the visible light range, while completely avoiding the safety hazards associated with ultraviolet light. The stability of nitrogen-doped titanium dioxide and the long lifespan of the blue LED also ensure the long-lasting and reliable operation of the disinfection system, providing continuous and safe disinfection protection for the vehicle interior environment.

[0034] As one implementation method, the photocatalyst layer 30 has a thickness of 100-500nm, which can ensure that light energy can effectively penetrate the entire catalyst layer and avoid discontinuous coating due to excessive thinness or cracking and peeling caused by excessive thickness.

[0035] The nitrogen-doped titanium dioxide photocatalyst layer 30 has nanoparticles with a diameter of 20-50 nm. These nanoparticles provide more active reaction sites, enhance the separation efficiency of photogenerated carriers, ensure that the photocatalyst layer 30 has a dense and defect-free structure, and improve the propagation and utilization efficiency of blue light in the coating.

[0036] As one implementation, the inner wall of the housing 1 is provided with a mounting cavity 11, which provides a dedicated integrated space for the reflector 31, realizing the embedded design of the photocatalytic disinfection unit 3 and the housing 1. The structure of the mounting cavity 11 ensures that the reflector 31 can be securely installed, avoiding displacement or loosening caused by vehicle vibration. This embedded installation method not only saves space, but also maintains the flatness of the inner wall of the armrest box, without affecting the user experience of the original storage function.

[0037] The reflector 31 adopts a special horn-shaped geometric structure, which has the following technical advantages.

[0038] First, high-efficiency utilization of light energy: The gradually expanding horn-shaped structure forms an optical reflection cavity, which can reflect blue light from the small end of the light source to the large end at multiple angles. Second, optimized airflow design: The horn-shaped cavity promotes natural air convection inside the chamber, enhancing the contact opportunities between pollutants and the photocatalyst layer 30.

[0039] The large end opening of the reflector 31 is flush with the inner wall surface of the housing 1 to avoid the protruding structure affecting the storage and retrieval of items. The blue light source 32 is located inside the small end of the reflector 31, and the light source is located in the focal area of ​​the reflective cavity to ensure that the light is efficiently reflected and diffused.

[0040] In some implementations, the photocatalytic disinfection unit 3 also includes a fixing base 33, which is fixedly disposed within the mounting cavity 11, and the reflector 31 is fixedly disposed within the fixing base 33. The fixing base 33 serves as the supporting structure of the photocatalytic disinfection unit 3. By being fixedly disposed within the mounting cavity 11, modular assembly is achieved, providing a precise installation reference for the reflector 31 and ensuring the alignment of the optical components. In this embodiment, the fixing base 33 is a cylindrical structure with one open end. The inner diameter of the fixing base 33 matches the outer diameter of the large-end opening of the reflector 31, and the reflector 31 can be fixed to the inside of the fixing base 33 by a snap-fit ​​mechanism.

[0041] A lamp source substrate 34 is fixedly disposed on the inner bottom surface of the mounting base 33, and a blue light source 32 is fixedly disposed on the lamp source substrate 34. In this embodiment, the mounting base 33 is made of aluminum alloy. The lamp source substrate 34 is in direct contact with the mounting base 33, which increases the heat dissipation area. The lamp source substrate 34 provides a mounting base for the blue light source 32. By fixing the lamp source substrate 34 inside the mounting base 33, it can be ensured that the blue light source 32 can be located inside the small section of the reflector 31.

[0042] In this example, the blue light source 32 is a blue LED, which is fixed on the lamp source substrate 34 by a surface mount process. The lamp source substrate 34 is an aluminum substrate or a fiberglass board.

[0043] As one implementation, a white light source 35 is also provided on the light source substrate 34. The white light source 35 is located inside the small end of the reflector 31 and is used to provide illumination inside the cabinet 1. Specifically, when the lid 2 of the armrest box is opened, the white light source 35 is lit to provide illumination inside the cabinet 1. When the lid 2 is closed, the white light source 35 is turned off, and at this time, the blue light source 32 is lit to perform photocatalytic disinfection.

[0044] In this embodiment, the white light source 35 is a white LED. As one implementation, at least one white light source 35 and one blue light source 32 are respectively provided. As another implementation, dual-color light can be integrated through a single LED, and white light or blue light can be switched according to the usage, so that more light sources can be set in a limited space.

[0045] By integrating a white light source 35 into the inner side of the small end of the reflector 31, intelligent switching between lighting and disinfection functions of the armrest box is achieved: when the lid 2 is opened, the white LED automatically illuminates to provide glare-free lighting, making it convenient for users to retrieve and place items; when the lid 2 is closed, it automatically switches to blue light disinfection mode, using photocatalysis to continuously purify the air inside the box. This dual-light source collaborative working mode not only meets the user's basic needs for lighting in the storage space but also ensures continuous disinfection effects in a sealed state.

[0046] Since the recessed surface of the reflector 31 faces the inside of the housing 1, the items inside the housing 1 may come into contact with the inner surface of the reflector 31, causing the items to rub against the photocatalyst and thus causing the photocatalyst to fall off, affecting the photocatalytic effect.

[0047] Therefore, the photocatalytic disinfection unit 3 also includes a protective cover 36, which is fixedly installed at the opening end of the mounting base 33. This design allows the protective cover 36 to block the opening end of the reflector 31, preventing items inside the housing 1 from penetrating the reflector 31 and thus avoiding scratches to the photocatalyst. The protective cover 36 has several ventilation holes 361 on its surface, allowing air from inside the housing 1 to enter through these holes and contact the inner surface of the reflector 31 for photocatalytic disinfection. By making the protective cover 36 transparent, preferably acrylic, when the white light source 35 is lit, the light can pass through the transparent protective cover 36 to illuminate the interior of the housing 1.

[0048] As one implementation method, one or more photocatalytic disinfection units 3 are provided on the inner side wall of the box 1. This achieves an optimal match between the disinfection effect and the spatial layout within the armrest box, meeting the disinfection needs of armrest boxes of different volumes, and significantly improving sterilization efficiency and coverage uniformity through the synergy of multiple units.

[0049] As one embodiment, a fan 4 is also provided on the inner side wall of the enclosure 1 to promote airflow within the enclosure 1. The fan 4, as an airflow driving element, breaks the stagnant airflow in the enclosed space, allowing the air inside the enclosure 1 to circulate internally, ensuring that pollutants fully contact the photocatalyst layer 30, improving photocatalytic efficiency, and thus enhancing disinfection efficiency.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car armrest box with integrated disinfection function, comprising a box body (1) and a box lid (2), characterized in that, It also includes a photocatalytic disinfection unit (3), which comprises: A reflector (31) is installed on the inner wall of the housing (1), and its inner surface is coated with a photocatalytic layer (30); A blue light source (32) is set inside a reflector (31), with its light emission direction facing the inner wall of the reflector (31).

2. The car armrest box with integrated disinfection function as described in claim 1, characterized in that: The photocatalyst layer (30) is a nitrogen-doped titanium dioxide material.

3. The car armrest box with integrated disinfection function as described in claim 2, characterized in that: The wavelength of the blue light source is 450-470nm.

4. The car armrest box with integrated disinfection function as described in claim 2, characterized in that: The thickness of the photocatalyst layer (30) is 100-500nm, and the diameter of the nanoparticles in the nitrogen-doped titanium dioxide photocatalyst layer (30) is 20-50nm.

5. The car armrest box with integrated disinfection function as described in claim 1, characterized in that: The inner wall of the housing (1) is provided with an installation cavity (11). The reflector (31) is embedded in the installation cavity (11) and is in the shape of a horn. The large end opening of the reflector (31) is flush with the inner wall surface of the housing (1). The blue light source (32) is located inside the small end of the reflector (31).

6. The car armrest box with integrated disinfection function as described in claim 5, characterized in that: The photocatalytic disinfection unit (3) also includes a fixing base (33), which is fixedly installed in the mounting cavity (11). The reflector (31) is fixedly installed in the fixing base (33). A lamp source substrate (34) is fixedly installed on the bottom surface of the fixing base (33), and the blue light source (32) is fixedly installed on the lamp source substrate (34).

7. The car armrest box with integrated disinfection function as described in claim 6, characterized in that: A white light source (35) is also provided on the light source substrate (34). The white light source (35) is located inside the small end of the reflector (31). The white light source (35) is used to provide lighting inside the box (1).

8. The car armrest box with integrated disinfection function as described in claim 7, characterized in that: The photocatalytic disinfection unit (3) also includes a protective cover (36), which is fixedly installed at the opening end of the fixing base (33). The surface of the protective cover (36) is provided with several ventilation holes (361), and the protective cover (36) is made of transparent material.

9. The car armrest box with integrated disinfection function as described in claim 1, characterized in that: One or more photocatalytic disinfection units (3) are provided on the inner side wall of the box (1).

10. The car armrest box with integrated disinfection function as described in claim 1, characterized in that: The inner wall of the box (1) is also provided with a fan (4) to promote airflow inside the box (1).

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