Photocatalyst filter element device

Abstract

The utility model provides a photocatalyst filter element device, which relates to the technical field of air purification and comprises a first filter element and a second filter element, the photocatalyst purification layer is stacked below the first filter element and is fixedly connected with the first filter element; the second filter element is stacked below the photocatalyst purification layer and is fixedly connected with the photocatalyst purification layer; the photocatalyst purification layer comprises a plurality of cavities coated with photocatalyst particle layers, light sources are arranged in the cavities, air enters the photocatalyst purification layer through the first filter element, light rays emitted by the light sources act on photocatalyst particles to generate a photocatalytic reaction, and the photocatalyst particles are purified through the light sources. And harmful substances in the air are filtered and then flow out through the second filter element. The air purifier not only can efficiently purify air, but also has a convenient replacement function.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a photocatalytic filter device. Background Technology

[0002] With the increasing use of automobiles, in-vehicle air quality has become a major public concern. In-vehicle air pollutants come from a variety of sources, including fine PM2.5 particles, volatile organic compounds (VOCs), germs, and odors. Traditional in-vehicle air purifiers primarily rely on HEPA filters or activated carbon, which, while effective at filtering particulate matter, are less effective at removing harmful gases, viruses, and bacteria. Therefore, purification systems using photocatalytic technology combined with UV lamps have become an effective way to improve in-vehicle air purification. However, existing in-vehicle air purification devices suffer from problems such as complex structure, inconvenient installation, difficult maintenance, and difficulty in replacing filters. Utility Model Content

[0003] This invention provides a photocatalytic filter device to solve the problems of complex structure, difficult filter replacement, and poor air purification effect in existing air purification devices.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A photocatalytic filter device, comprising:

[0006] First filter element;

[0007] A photocatalytic purification layer that is stacked below the first filter element and fixedly connected to the first filter element;

[0008] A second filter element is stacked below the photocatalytic purification layer and fixedly connected to the photocatalytic purification layer;

[0009] The photocatalytic purification layer includes: multiple cavities coated with photocatalytic particle layers, and a light source is provided in the cavity. Air enters the photocatalytic purification layer through the first filter element. The light emitted by the light source acts on the photocatalytic particles to produce a photocatalytic reaction, filtering out harmful substances in the air and then flowing out through the second filter element.

[0010] Optionally, the first filter element and the photocatalytic purification layer are fixedly connected by snap fasteners; the photocatalytic purification layer and the second filter element are fixedly connected by snap fasteners.

[0011] Optionally, the photocatalytic purification layer includes:

[0012] First border;

[0013] Multiple cavities are disposed within the first frame, and each cavity is provided with the light source.

[0014] Optionally, a circuit board is provided in the first frame, and the circuit board is electrically connected to the light source.

[0015] Optionally, a power interface is provided on the first frame; the power interface is electrically connected to the circuit board.

[0016] Optionally, the light sources in the plurality of cavities are electrically connected to the circuit board via connecting wires.

[0017] Optionally, the photocatalyst particle layer is an aluminum-based titanium dioxide coating.

[0018] Optionally, the cavity is a hexagonal cavity, a triangular cavity, or a square cavity.

[0019] Optionally, the first filter element includes:

[0020] Second border;

[0021] The first filter layer is fixed in the second frame.

[0022] Optionally, the second filter element includes:

[0023] Third border;

[0024] The second filter layer is fixed in the third frame.

[0025] The above-described solution of this utility model has at least the following beneficial effects:

[0026] The present invention includes: a first filter element; a photocatalytic purification layer stacked below and fixedly connected to the first filter element; a second filter element stacked below and fixedly connected to the photocatalytic purification layer; and a photocatalytic purification layer comprising: multiple cavities coated with photocatalytic particle layers, each cavity containing a light source. Air enters the photocatalytic purification layer through the first filter element, and the light emitted by the light source acts on the photocatalytic particles to undergo a photocatalytic reaction, filtering harmful substances in the air before flowing out through the second filter element. This solution not only efficiently purifies the air but also offers convenient replacement functionality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the photocatalytic filter device provided in an embodiment of this utility model;

[0028] Figure 2 This is a schematic diagram of the photocatalytic purification layer of the honeycomb structure cavity provided in an embodiment of this utility model;

[0029] Figure 3 This is a schematic diagram of the photocatalytic purification layer of the triangular cavity provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the photocatalytic purification layer of the square-structured cavity provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the honeycomb structure cavity provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the filter element provided in an embodiment of this utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the light source provided in an embodiment of this utility model;

[0034] Figure 8 This is a schematic diagram of the photocatalytic purification layer of the lamp panel structure provided in an embodiment of this utility model. Detailed Implementation

[0035] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0036] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a photocatalytic filter device, comprising:

[0037] First filter element 11;

[0038] A photocatalytic purification layer 13 is stacked below the first filter element 11 and fixedly connected to the first filter element 11;

[0039] A second filter element 12 is stacked below the photocatalytic purification layer 13 and fixedly connected to the photocatalytic purification layer 13;

[0040] The photocatalytic purification layer 13 includes: multiple cavities 131 coated with photocatalytic particle layers, and a light source 2 is provided in the cavity 131. Air enters the photocatalytic purification layer 13 after passing through the first filter element 11. The light emitted by the light source 2 acts on the photocatalytic particles to produce a photocatalytic reaction, and after filtering out harmful substances in the air, it flows out through the second filter element 12.

[0041] In this embodiment, the first filter element 11, the photocatalytic purification layer 13, and the second filter element 12 are stacked in sequence to form a multi-layer photocatalytic filter element device. The assembled photocatalytic filter element is then installed in the vehicle air purification equipment to purify the air inside the vehicle.

[0042] The first filter element 11, the photocatalytic purification layer 13, and the second filter element 12 are arranged sequentially in the airflow direction. From the air inlet to the air outlet of the vehicle air purifier, the air passes through the first filter element 11 to the photocatalytic purification layer 13, and then through the second filter element 12 before being discharged. Specifically, when air enters the photocatalytic filter device, it passes through the photocatalytic purification layer 13, where harmful substances in the air are catalytically decomposed under the action of the photocatalytic coating. Then, it passes through either the first filter element 11 or the second filter element 12, filtering out particulate matter, TVOC, formaldehyde, and other harmful substances in the air.

[0043] Unlike traditional HEPA filters, which suffer from reduced efficiency due to the accumulation of harmful substances, the photocatalytic filter device in this embodiment achieves a self-cleaning function by returning pollutants to the photocatalytic purification layer 13 and decomposing them under the irradiation of the light source 2. This effectively extends the service life of the filter and improves the air purification effect.

[0044] The photocatalytic filter device in this embodiment integrates a light source with a photocatalytic particle layer, enabling continuous activation of the photocatalytic reaction, effectively decomposing harmful substances and improving in-vehicle air purification efficiency. Simultaneously, the stacked design of the filter and photocatalytic purification layer makes the device easier to disassemble and replace, facilitating maintenance and use. This organic combination of the photocatalytic purification layer and the filter not only improves air purification performance but also extends the filter's lifespan, providing users with a healthier and more comfortable in-vehicle air environment.

[0045] In an optional embodiment of this utility model, the first filter element 11 and the photocatalytic purification layer 13 are fixedly connected by a snap fastener; the photocatalytic purification layer 13 and the second filter element 12 are fixedly connected by a snap fastener.

[0046] In this embodiment, the first filter element 11, the photocatalytic purification layer 13, and the second filter element 12 are sequentially connected by snap-fit ​​fasteners to ensure a stable connection between the modules and facilitate disassembly, assembly, maintenance, and use.

[0047] like Figure 2 As shown, in an optional embodiment of the present invention, the photocatalytic purification layer 13 includes: a first frame 132;

[0048] Multiple cavities 131 are disposed within the first frame 132, and each cavity 131 is provided with the light source 25.

[0049] In this embodiment, the photocatalytic purification layer 13 adopts a honeycomb photocatalytic coating structure, with the honeycomb cavities 131 located inside the first frame 132. A light source 2 is placed in each hexagonal cavity 131 and fixed to the center of each hexagonal structure using iron or plastic wire. The light source 2 can be an ultraviolet lamp bead or a white light bead, providing a light source for the photocatalytic coating to ensure uniform illumination and effectively activate the photocatalytic coating reaction. In this embodiment, the photocatalytic coating is an aluminum-based titanium dioxide coating, which has the advantage of being activated under both white light and ultraviolet light irradiation.

[0050] like Figure 5 The cavity 131 shown is a hexagonal honeycomb structure. There can be 20 to 60 cavities 131 per square decimeter, and the thickness of the cavity 131 can be set to 1 to 3 centimeters.

[0051] Furthermore, for example... Figure 3 and Figure 4 As shown, the photocatalytic purification layer 13 can also be configured as a cavity 131 with a triangular, square or other structure, and the user can choose the most suitable cavity shape according to actual needs.

[0052] In an optional embodiment of the present invention, a circuit board 133 is disposed in the first frame 132, and the circuit board 133 is electrically connected to the light source 2.

[0053] In an optional embodiment of this utility model, a power interface is provided on the first frame 132; the power interface is electrically connected to the circuit board 133.

[0054] In the above embodiment, a power interface for connecting to an external power source is provided on the first frame 132 of the photocatalytic purification layer 13. The power interface is electrically connected to the circuit board 133, and the light source 2 is electrically connected to the circuit board 133, thereby enabling power supply to the light source 2 in the photocatalytic purification layer 13.

[0055] In an optional embodiment of this utility model, the light source 2 in the plurality of cavities 131 is electrically connected to the circuit board 133 via a connecting line 134.

[0056] In this embodiment, as Figures 2 to 4 As shown, all the light sources 2 in the cavities 131 are connected into a mesh structure by connecting wires 134, and are electrically connected to the circuit board 133 by connecting wires 134 to provide power to the light sources 2. All the light sources 2 can be connected in series or in parallel.

[0057] like Figure 7 As shown, in an optional embodiment of the present invention, the light source 2 is a ring lamp tube.

[0058] In this embodiment, the design of the ring lamp tube enables it to uniformly irradiate the photocatalytic purification layer 13 from all directions at 360°, effectively avoiding the problem of uneven irradiation caused by a single light angle, which would result in insufficient reaction of the photocatalytic coating and poor purification effect.

[0059] In an optional embodiment of this utility model, the first filter element 11 includes:

[0060] Second border 111;

[0061] The first filter layer 112 is fixed in the second frame 111.

[0062] In an optional embodiment of this utility model, the second filter element 12 includes:

[0063] Third border 121;

[0064] The second filter layer 122 is fixed in the third frame 121.

[0065] In the above embodiments, such as Figure 6 As shown, the first filter element 11 and the second filter element 12 have the same structure. Both the first filter element 11 and the second filter element 12 use HEPA (High Efficiency Particulate Air Filter) filter elements. HEPA filter elements are composed of very fine fiber material, with countless tiny pores formed between these fibers. When air flows through the filter element, airborne particles such as dust, pollen, bacteria, and viruses are directly intercepted when they encounter the fibers and cannot pass through the filter element. Larger airborne particles, due to their greater inertia, cannot smoothly bypass the fibers when they pass through the filter element with the airflow, and thus collide with the fibers and are adsorbed onto them. For extremely small particles, such as particles with a diameter of less than 0.1 micrometers, they undergo random Brownian motion in the air. When these particles approach the fibers, the presence of the fibers restricts their movement space, making it easier for the particles to contact and be adsorbed by the fibers, thereby achieving filtration.

[0066] HEPA filters have extremely high filtration efficiency, effectively removing fine particulate matter from the air, including harmful bacteria, viruses, pollen, dust mites, and other pollutants. They also have relatively stable air resistance, ensuring the stable operation of air purifiers or air conditioners to a certain extent. Furthermore, HEPA filters have a long service life, reducing the frequency of replacement.

[0067] In an optional embodiment of this invention, the photocatalytic purification layer 13 may also be adopted as follows: Figure 8The structure shown adopts a photocatalytic purification layer 13 with a lamp panel structure. The photocatalytic purification layer 13 includes two fixed frames 31, and multiple lamp panels 32 are fixed between the two fixed frames 31. The multiple lamp panels 32 are fixed to the fixed frames 31 by connectors 33. Each lamp panel 32 is provided with multiple light sources 2, and the lamp panel 32 has wires inside to provide power to the light sources 2.

[0068] A grating plate 34 is fixedly installed on the top of the lamp plate 32. When the light from the light source 2 shines on the grating plate, grating diffraction is generated, which can change the direction of light propagation. Furthermore, by modulating the light, light at different angles can be focused or dispersed, thereby ensuring that sufficient light shines on the photocatalyst coating.

[0069] This novel photocatalytic filter device not only efficiently purifies air but also offers convenient replacement. By combining photocatalytic and filtration technologies, it simultaneously addresses the purification of particulate matter and harmful gases in the air, while also possessing excellent photocatalytic self-cleaning capabilities. Integrating the light source with the photocatalytic particle layer continuously activates the photocatalytic reaction, effectively decomposing harmful substances and improving in-vehicle air purification efficiency. Furthermore, the stacked design of the filter and photocatalytic purification layer makes the device easier to disassemble and replace, facilitating maintenance and use. The organic combination of the photocatalytic purification layer and the filter not only enhances air purification but also extends the filter's lifespan, providing users with a healthier and more comfortable in-vehicle air environment.

[0070] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A photocatalytic filter device, characterized in that, include: First filter element (11); A photocatalytic purification layer (13) is stacked below the first filter element (11) and fixedly connected to the first filter element (11). A second filter element (12) is stacked below the photocatalytic purification layer (13) and fixedly connected to the photocatalytic purification layer (13). The photocatalytic purification layer (13) includes: multiple cavities (131) coated with photocatalytic particle layers, and a light source (2) is provided in the cavity (131). Air enters the photocatalytic purification layer (13) through the first filter (11). The light emitted by the light source (2) acts on the photocatalytic particles to produce a photocatalytic reaction, and after filtering out harmful substances in the air, it flows out through the second filter (12).

2. The photocatalytic filter device according to claim 1, characterized in that, The first filter element (11) is fixedly connected to the photocatalytic purification layer (13) by a snap fastener; the photocatalytic purification layer (13) is fixedly connected to the second filter element (12) by a snap fastener.

3. The photocatalytic filter device according to claim 1, characterized in that, The photocatalytic purification layer (13) includes: First border (132); Multiple cavities (131) are disposed within the first frame (132), and each cavity (131) is provided with the light source (2).

4. The photocatalytic filter device according to claim 3, characterized in that, A circuit board (133) is provided in the first frame (132), and the circuit board (133) is electrically connected to the light source (2).

5. The photocatalytic filter device according to claim 4, characterized in that, A power interface is provided on the first frame (132); the power interface is electrically connected to the circuit board (133).

6. The photocatalytic filter device according to claim 5, characterized in that, The light sources (2) in the plurality of cavities (131) are electrically connected to the circuit board (133) via connecting lines (134).

7. The photocatalytic filter device according to claim 1, characterized in that, The photocatalyst particle layer is an aluminum-based titanium dioxide coating.

8. The photocatalytic filter device according to claim 1, characterized in that, The cavity (131) is a hexagonal cavity, a triangular cavity, or a square cavity with a cross-section.

9. The photocatalytic filter device according to claim 1, characterized in that, The first filter element (11) includes: Second border (111); The first filter layer (112) is fixed in the second frame (111).

10. The photocatalytic filter device according to claim 1, characterized in that, The second filter element (12) includes: Third border (121); The second filter layer (122) is fixed in the third frame (121).

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