Cylindrical air conditioning modular photocatalytic unit and application thereof

Abstract

The application discloses a cylindrical air-conditioning modular photocatalytic unit and application thereof, and relates to the technical field of air purification, in particular to a cylindrical air-conditioning modular photocatalytic unit and application thereof. The cylindrical air-conditioning modular photocatalytic unit comprises a module shell, a photocatalytic filter screen, an ultraviolet lamp group and a dust filter screen. The photocatalytic filter screen, the ultraviolet lamp group and the dust filter screen are all arc-shaped and are installed in parallel in the module shell. The ultraviolet lamp group is installed between the dust filter screen and the photocatalytic filter screen and is fixedly connected with the module shell. The dust filter screen and the photocatalytic filter screen are slidably connected with the module shell through a sliding groove. The cylindrical air-conditioning modular photocatalytic unit has the advantages of simple structure, safety and high efficiency. The photocatalytic unit can continuously purify and disinfect indoor air when being installed between a cylindrical air-conditioning air inlet grille and a heat exchanger. The filter screen and the ultraviolet lamp can be efficiently and conveniently installed and dismounted. The filter screen can be directly taken out from the side of the air conditioner body for cleaning or replacement without dismounting the photocatalytic unit, so that the maintenance cost is greatly reduced, and the application prospect is good.

Description

Technical Field

[0001] This invention relates to the field of air purification and air conditioning equipment technology, and to a cylindrical modular photocatalytic unit for air conditioning and its application. Background Technology

[0002] In modern society, with the acceleration of urbanization and the improvement of people's living standards, indoor air quality has become an increasingly important focus of public concern. While traditional air conditioning systems can effectively regulate indoor temperature, they have significant shortcomings in air purification and sterilization. Especially in enclosed indoor environments, the proliferation of air pollutants (such as formaldehyde, benzene, TVOCs, and other harmful gases) and microorganisms such as bacteria and viruses seriously threatens people's health.

[0003] To address this challenge, photocatalysis technology, as a highly efficient and environmentally friendly air purification method, is gradually gaining attention. By integrating a photocatalytic module into an air conditioning system, the air to be treated is introduced into the photocatalytic module for purification using the air circulation mechanism within the system. Simultaneously, the air conditioning system's air delivery function distributes the purified air evenly to every corner of the room, thereby achieving air purification and sterilization throughout the entire indoor environment, creating a healthier and more comfortable living environment for people.

[0004] CN 204880349 U discloses an air conditioner based on photocatalysis and electrostatic dust removal technologies, including an air conditioner main frame, a front panel, a blower, an airflow channel, an air outlet, and an air purification device. The air purification device is located between the front panel and the blower. An ultraviolet lamp and a nano-TiO2 photocatalytic mesh within the air purification device form a photocatalytic reaction zone, purifying the flowing air through it. However, this solution has drawbacks: the air conditioner is a square, floor-standing unit, which has a small air inlet area, resulting in a high airflow velocity. This leads to a short residence time of pollutants on the photocatalyst surface, low photocatalytic efficiency, and the possibility that pollutants may not be completely degraded by photocatalytic oxidation, producing intermediate products. These intermediate products may pose a greater health hazard than the target pollutants, increasing the risk of air pollution. Furthermore, the ultraviolet lamp used in this solution is a UV lamp tube, which contains mercury. Improper handling may pose a health hazard; and the effective lifespan of the UV lamp tube is less than 300 hours, requiring replacement after a period of use. Meanwhile, the nano-TiO2 photocatalytic mesh in this solution is installed inside the air conditioner. After long-term use, dust accumulation will significantly reduce the purification efficiency, thus requiring cleaning. Disassembling the air conditioner to replace or clean the components would incur substantial time and labor costs.

[0005] Cylindrical air conditioners, as one of the mainstream designs, feature large air inlets and outlets and efficient air delivery systems. Therefore, combining cylindrical air conditioners with photocatalysis technology to develop a photocatalytic unit for cylindrical air conditioners that features a large photocatalytic reaction zone, is safe and environmentally friendly, and can be quickly installed / disassembled as a module is of great practical significance. Summary of the Invention

[0006] Due to the aforementioned defects in the existing technology, the present invention provides a cylindrical photocatalytic unit for air conditioning that is easy to disassemble and install and can be quickly disassembled and assembled as a module, overcoming the defects of existing photocatalytic air conditioners such as intermediate product problems, inconvenient component disassembly and assembly, and high equipment maintenance costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A cylindrical modular photocatalytic unit for air conditioning includes a module housing, a photocatalytic filter, an ultraviolet lamp assembly, and a dust removal filter.

[0009] The photocatalytic filter, ultraviolet lamp assembly, and dust removal filter are all arc-shaped and installed in parallel inside the module housing. The ultraviolet lamp assembly is installed between the dust removal filter and the photocatalytic filter and is fixedly connected to the module housing. The dust removal filter and the photocatalytic filter are slidably connected to the module housing through a sliding groove.

[0010] The modular photocatalytic unit for cylindrical air conditioners of this invention has a simple structure and good overall performance. The large-area photocatalytic filter, combined with the ultraviolet lamp assembly, can effectively decompose organic pollutants in the air without producing intermediate products, and kill bacteria, viruses, and other microorganisms. The unit is installed between the air inlet grille and the heat exchanger of the cylindrical air conditioner to give the air conditioner photocatalytic function, perfectly combining the high-efficiency air supply system of the cylindrical air conditioner with the air purification capability of photocatalytic technology, providing a healthier and more comfortable indoor environment for modern families. The photocatalytic filter and dust filter are easy and quick to install and remove. The filter can be directly pulled out from the side of the air conditioner for cleaning and maintenance without disassembling any parts, which greatly reduces maintenance costs and has good application prospects.

[0011] As a preferred technical solution:

[0012] As described above, a cylindrical modular photocatalytic unit for air conditioning includes an ultraviolet lamp assembly with an arc-shaped frame. Multiple ultraviolet light generators are installed on the arc-shaped frame near the photocatalytic filter to provide ultraviolet light for the photocatalytic filter.

[0013] As described above, a cylindrical modular photocatalytic unit for air conditioning includes an ultraviolet (UV) light generator comprising a lamp cover, UV LEDs, and a UV light generator housing. The UV light generator housing is fixedly mounted on the curved frame of the UV lamp assembly, and the UV LEDs are fixedly mounted inside the UV light generator housing via the lamp cover. The UV lamp assembly uses mercury-free UV LEDs instead of traditional UV lamp tubes, resulting in a smaller size, longer lifespan, and avoiding the harmful effects of mercury from UV lamp tubes on human health.

[0014] As described above, a cylindrical modular photocatalytic unit for air conditioning has a lamp bead hole corresponding to an ultraviolet lamp bead on the lamp cover plate, and the surface of the lamp bead hole is coated with a mirror reflective material.

[0015] The lamp cover is provided with symmetrical buckles on the upper and lower sides, the ultraviolet light generator housing is provided with protrusions corresponding to the buckles, and the ultraviolet light generator housing is provided with limiting ribs for installing ultraviolet lamp beads.

[0016] The aforementioned UV lamp assembly features an ingenious design. The single-sided opening and the mirror-reflective material on the surface of the lamp beads prevent UV light from escaping, thus avoiding harm to the human body. It also improves the utilization rate of UV light, enhancing air purification. When the UV lamp assembly malfunctions, simply remove the corresponding lamp cover and replace the internal UV lamp beads; there is no need to replace the entire assembly, saving on maintenance costs.

[0017] As described above, a cylindrical modular photocatalytic unit for air conditioning has an embedded handle installed on one side of both the photocatalytic filter and the dust removal filter.

[0018] The embedded handle is fixed with a first locking block, which cooperates with the second locking block reserved on the air conditioner body to fix the filter in the designated position;

[0019] The arc-shaped frame of both the photocatalytic filter and the dust removal filter is made of an elastic alloy that can recover its original shape after the external force is removed. The substrate of the photocatalytic filter is a nickel mesh material that is easy to deform and has good ductility. The combination of the two can give the photocatalytic filter and the dust removal filter a certain deformation ability, allowing them to undergo a certain deformation during disassembly and assembly. After the external force is removed, the filter can recover its original shape.

[0020] Nano-titanium dioxide material is sintered on the substrate of the photocatalytic filter.

[0021] As described above, a cylindrical modular photocatalytic unit for air conditioning includes a first groove on the module housing that mates with a photocatalytic filter and a second groove that mates with a dust removal filter. The photocatalytic filter and the first groove are in a clearance fit, as are the dust removal filter and the second groove. This clearance fit creates a gap mounting portion, allowing for some movement of the filter during assembly and disassembly, thus facilitating filter installation and removal.

[0022] As described above, a cylindrical modular photocatalytic unit for air conditioning has a first mounting hole and a second mounting hole on one side of the module housing for installing and removing the photocatalytic filter and the dust removal filter;

[0023] On the other side of the module housing, there is a first limiting groove that cooperates with the photocatalytic filter and a second limiting groove that cooperates with the dust removal filter. The limiting grooves ensure that the filter can be fixed in the designated position after installation and will not come loose, and will not produce abnormal noise during air conditioning operation.

[0024] As described above, in a cylindrical modular photocatalytic unit for air conditioning, there are two photocatalytic filters, two ultraviolet lamps, and two dust filters installed in a symmetrical manner inside the module housing. The purpose of this design is to reduce the volume of each component and ensure convenient assembly and disassembly.

[0025] The present invention also provides a cylindrical photocatalytic air conditioner, comprising a cylindrical air conditioner modular photocatalytic unit, an air conditioner body, a heat exchanger, a fan wheel, an air duct, and an air conditioner front cover as described above;

[0026] The cylindrical air conditioner modular photocatalytic unit (used to purify pollutants in the air) is installed (fixed with bolts) between the air inlet grille and the heat exchanger on the back of the air conditioner body, and the opening direction of the cylindrical structure of the cylindrical air conditioner modular photocatalytic unit matches the airflow direction.

[0027] As a preferred technical solution:

[0028] As described above, a cylindrical photocatalytic air conditioner has a space reserved inside the air conditioner body for installing a modular photocatalytic unit for cylindrical air conditioners;

[0029] The air conditioner body has a photocatalytic filter installation slot and a dust removal filter installation slot reserved on one side. The photocatalytic filter installation slot and the dust removal filter installation slot are provided with a second locking block that matches the first locking block. By cooperating with the first locking block and the second locking block, the filter can be fixed in a designated position. The filter can be directly inserted into the module housing or pulled out from the module housing by the embedded handle on the side of the air conditioner body, thereby realizing quick installation and removal of the filter.

[0030] The above technical solution is only one feasible technical solution of the present invention. The scope of protection of the present invention is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0031] The above invention has the following advantages or beneficial effects:

[0032] (1) The modular photocatalytic unit for cylindrical air conditioners of the present invention integrates the photocatalytic purification function into a photocatalytic unit that can be quickly disassembled and installed as a module, which not only improves the functionality of cylindrical air conditioners, but also provides users with a healthier and more comfortable indoor environment.

[0033] (2) The cylindrical air conditioner modular photocatalytic unit of the present invention has a photocatalytic filter and a dust removal filter that are easy and quick to install and remove. When the filter needs to be removed, simply pull the embedded handle on the side of the air conditioner body and the filter can be directly pulled out from the inside of the photocatalytic unit for cleaning and maintenance without having to remove the entire photocatalytic unit. When the filter needs to be installed in the air conditioner, insert the filter into the corresponding mounting slot on the side of the air conditioner body and press it gently. The filter can then be fixed in the designated position inside the air conditioner, which greatly saves the maintenance cost of the equipment.

[0034] (3) The cylindrical air conditioner modular photocatalytic unit of the present invention, with its single-sided opening design and the mirror reflective material on the surface of the lamp bead hole, can not only ensure that ultraviolet light will not escape and thus avoid harm to the human body, but also improve the utilization rate of ultraviolet light and enhance the air purification effect.

[0035] (4) The cylindrical air conditioner modular photocatalytic unit of the present invention has a reasonable design of ultraviolet lamp group. When the ultraviolet lamp group fails, only the lamp cover plate at the corresponding position needs to be removed and the internal ultraviolet lamp beads replaced. There is no need to replace the entire ultraviolet lamp group, thus saving maintenance costs.

[0036] (5) The cylindrical air conditioner modular photocatalytic unit of the present invention provides a large area of ​​photocatalytic filter to provide a sufficient photocatalytic reaction zone, which increases the residence time of pollutants on the surface of the photocatalytic material, thereby completely decomposing pollutants in the air without producing intermediate products and avoiding secondary pollution.

[0037] (6) The cylindrical photocatalytic air conditioner of the present invention has a reasonable structural design. The modular photocatalytic unit for cylindrical air conditioners is easy and simple to install and fix with the air conditioner body. Compared with traditional cylindrical air conditioners, the cylindrical photocatalytic air conditioner requires less modification. It can be easily modified by adding a modular photocatalytic unit for cylindrical air conditioners to give the cylindrical air conditioner photocatalytic capability. The modular photocatalytic unit for cylindrical air conditioners has good matching performance and can meet the needs of cylindrical air conditioners of different sizes. At the same time, the modular photocatalytic unit is easy to replace, has good ease of use, and has good application prospects. Attached Figure Description

[0038] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their purpose is to illustrate the gist of the invention.

[0039] Figure 1 A schematic diagram of a modular photocatalytic unit for cylindrical air conditioners;

[0040] Figure 2 An exploded view of a modular photocatalytic unit for a cylindrical air conditioner;

[0041] Figure 3 A cross-sectional view of a modular photocatalytic unit for a cylindrical air conditioner;

[0042] Figure 4 An exploded view of an ultraviolet light generator;

[0043] Figure 5 An exploded view of a cylindrical photocatalytic air conditioner;

[0044] Figure 6 This is a cross-sectional view of a cylindrical photocatalytic air conditioner;

[0045] Figure 7 for Figure 6 Enlarged view of position A in the middle;

[0046] Among them, 1-Air conditioner body; 2-Air conditioner front cover; 3-Air duct; 4-Fan wheel; 5-Heat exchanger; 6-Cylindrical modular photocatalytic unit for air conditioner; 7-Air inlet grille; 8-Air outlet; 9-Dust filter; 10-Photocatalytic filter; 101-Photocatalytic filter arc frame; 102-Embedded handle; 103-First locking block; 11-Ultraviolet lamp assembly; 111-Ultraviolet lamp assembly arc frame; 112-Ultraviolet light generator; 12-Module housing; 121-First slide groove; 122-Second slide groove; 123-First limiting groove; 124-Second limiting groove; 125-First mounting hole; 126-Second mounting hole; 13-Lamp cover plate; 131-Snap fastener; 132-Lamp bead hole; 14-UV lamp bead; 15-UV light generator housing; 151-Boss; 152-Limiting rib; 16-Second locking block; 17-Installation gap; 18-Dust filter mounting groove; 19-Photocatalytic filter mounting groove. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but these are not intended to limit the scope of the invention.

[0048] Example 1

[0049] A cylindrical modular photocatalytic unit for air conditioning, such as Figures 1-4As shown in the figure, it includes a module housing 12, a photocatalytic filter screen 10, an ultraviolet lamp group 11, and a dust removal filter screen 9; the module housing 12 is in an arc-shaped "day" character structure as a whole, and multiple pairs of first chutes 121 for cooperating with the photocatalytic filter screen 10 and second chutes 122 for cooperating with the dust removal filter screen 9 are provided on its opposite upper and lower wall surfaces; a first installation hole 125 and a second installation hole 126 for installing / dismantling the photocatalytic filter screen and the dust removal filter screen are also provided on one side of the module housing 12; the photocatalytic filter screen 10 and the dust removal filter screen 9 are inserted into the module housing through the installation holes and the chutes and completely cover the hollow cross-section of the cylindrical structure surrounded by the module housing 12; there is a clearance fit between the filter screen and the chute, and the clearance installation part formed by the clearance fit allows the filter screen to have a certain amount of movement space during the disassembly and assembly process, facilitating the disassembly and assembly of the filter screen;

[0050] On the side of the module housing 12 away from the installation hole, a first limiting groove 123 for cooperating with the photocatalytic filter screen 10 and a second limiting groove 124 for cooperating with the dust removal filter screen 9 are provided. The limiting grooves can ensure that the filter screen can be fixed in place after installation without loosening and does not produce abnormal noises during the operation of the air conditioner; the photocatalytic filter screen 10, the ultraviolet lamp group 11, and the dust removal filter screen 9 are all in arc shapes and are installed in parallel in the module housing 12. The ultraviolet lamp group 11 is installed in the middle of the dust removal filter screen 9 and the photocatalytic filter screen 10 and is fixedly connected to the module housing 12; there are two photocatalytic filter screens 10, ultraviolet lamp groups 11, and dust removal filter screens 9 each, and they are installed in the module housing 12 in a vertically symmetric form;

[0051] An embedded handle 102 for facilitating the disassembly and assembly of the filter screen is installed on one side of the photocatalytic filter screen 10 and the dust removal filter screen 9; multiple first clamping blocks 103 for fixing the filter screen are equidistantly arranged on the embedded handle 102; the materials of the arc-shaped frame body 101 of the photocatalytic filter screen and the arc-shaped frame body of the dust removal filter screen are elastic alloys that can restore their original shapes after removing external forces; the base material of the photocatalytic filter screen 10 is a nickel mesh material that is easy to deform and has good ductility; a nano-titanium dioxide material is sintered on the base material;

[0052] On the side of the ultraviolet lamp group 11 close to the photocatalytic filter screen 10, multiple ultraviolet light generators 112 are installed to provide ultraviolet light for the photocatalytic filter screen. The ultraviolet light generators 112 include a lamp cover plate 13, ultraviolet lamp beads 14, and an ultraviolet light generator housing 15. The ultraviolet light generator housing 15 is fixedly installed on the lamp group arc-shaped frame body 111, and the ultraviolet lamp beads 14 are fixedly installed in the ultraviolet light generator housing 15 through the lamp cover plate 13;

[0053] Lamp bead holes 132 corresponding to the ultraviolet lamp beads 14 are provided on the lamp cover plate 13, and the surfaces of the lamp bead holes 132 are coated with a specular reflection material; symmetric buckles 131 are also provided on the upper and lower sides of the lamp cover plate 13, and convex platforms 151 corresponding to the buckles 131 are provided on the ultraviolet light generator housing 15; limiting ribs 152 for installing the ultraviolet lamp beads 14 are also provided in the ultraviolet light generator housing 15.

[0054] When the photocatalytic unit is working, the ultraviolet lamp assembly 11 is powered on, and the ultraviolet light generator 112 inside the ultraviolet lamp assembly 11 generates ultraviolet light. After being reflected by the mirror reflective material on the surface of the lamp bead hole 132, the light shines onto the photocatalytic filter 10. The nano-photocatalytic material on the surface of the photocatalytic filter 10 is excited to generate electron-hole pairs, which in turn form free radicals with strong oxidizing properties. These free radicals can quickly decompose organic pollutants in the air and kill bacteria, viruses and other microorganisms, thereby achieving the dual effect of air purification and sterilization. The dust filter 9 can intercept dust, insects and other impurities in the air before the air flows through the photocatalytic filter 10, thereby improving the purification efficiency of the photocatalytic unit.

[0055] Example 2

[0056] A cylindrical photocatalytic air conditioner, such as Figures 5-7 As shown, the cylindrical photocatalytic air conditioner includes a cylindrical air conditioner modular photocatalytic unit 6 as described in Example 1, an air conditioner body 1, a heat exchanger 5, a fan wheel 4, an air duct 3, and an air conditioner front cover 2;

[0057] The air conditioner body 1 has a reserved space inside for the installation of a cylindrical modular photocatalytic unit 6 for air conditioning; a photocatalytic filter mounting slot 19 and a dust removal filter mounting slot 18 are reserved on one side of the air conditioner body 1, and a second locking block 16 that cooperates with the first locking block 103 on the embedded handle 102 is provided in the photocatalytic filter mounting slot 19 and the dust removal filter mounting slot 18; the cylindrical modular photocatalytic unit 6 for air conditioning is installed between the air inlet grille 7 and the heat exchanger 5 on the back of the air conditioner body 1, and the opening direction of the cylindrical structure of the cylindrical modular photocatalytic unit 6 matches the airflow direction;

[0058] When the cylindrical photocatalytic air conditioner is working, indoor air is drawn in by the impeller 4, first passing through the air inlet grille 7 on the back of the air conditioner body 1, and then flowing through the cylindrical air conditioner modular photocatalytic unit 6. Dust, insects and other impurities in the air are filtered and intercepted, organic pollutants are decomposed into water and carbon dioxide, and bacteria, viruses and other microorganisms are killed. The purified air then passes through the heat exchanger 5 for heat exchange, and finally flows out from the air outlet 8. The purified air will be evenly distributed to every corner of the room, thereby achieving air purification and sterilization of the entire indoor environment.

[0059] After a period of use, dust and other impurities will accumulate on the surfaces of the photocatalytic filter 10 and the dust removal filter 9 in cylindrical photocatalytic air conditioners, leading to a decrease in photocatalytic purification efficiency and air conditioning performance. Therefore, the photocatalytic filter 10 and the dust removal filter 9 need to be cleaned and maintained periodically. Taking the photocatalytic filter 10 as an example, when the photocatalytic filter 10 needs cleaning, maintenance personnel only need to place their hand in the recessed handle 102 on the side of the air conditioner body 1 and gently pull it outwards. Because the air conditioner body 1 has a reserved installation gap 17, the recessed handle 102 can move obliquely upwards along the contact slope between the first locking block 103 and the second locking block 16, while simultaneously disengaging the first locking block 103 from the second locking block 16. At this time, continue pulling outwards to remove the photocatalytic filter 10 from the modular photocatalytic unit 6. When it is necessary to install the photocatalytic filter 10 into the modular photocatalytic unit 6, firstly, the photocatalytic filter 10 can be removed from the modular photocatalytic unit 6. The filter 10 is inserted into the photocatalytic filter mounting slot 19 on the side of the air conditioner body 1. The photocatalytic filter 10 will enter the first limiting slot 123 along the first sliding groove 121. The first locking block 103 on the embedded handle 102 will then enter the photocatalytic filter mounting slot 19. At this time, gently press the embedded handle 102 to make the first locking block 103 and the second locking block 16 properly engage (before proper engagement, the photocatalytic filter arc frame 101 will generate a certain elastic force due to deformation, thereby pushing the first locking block 103 and the second locking block 16 to engage properly). The photocatalytic filter 10 can then be fixed in the designated position, completing the installation.

[0060] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0061] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A modular photocatalytic unit for cylindrical air conditioning, characterized in that: Includes module housing, photocatalytic filter, ultraviolet lamp assembly, and dust removal filter; The photocatalytic filter, ultraviolet lamp assembly, and dust removal filter are all arc-shaped and installed in parallel inside the module housing. The ultraviolet lamp assembly is installed between the dust removal filter and the photocatalytic filter and is fixedly connected to the module housing. The dust removal filter and the photocatalytic filter are slidably connected to the module housing through the second sliding groove and the first sliding groove, respectively. The ultraviolet lamp assembly includes an arc-shaped frame, and multiple ultraviolet light generators are installed on the near-photocatalytic filter side of the arc-shaped frame. The ultraviolet light generator includes a lamp cover plate, ultraviolet lamp beads, and an ultraviolet light generator housing. The ultraviolet light generator housing is fixedly installed on the curved frame of the ultraviolet lamp group, and the ultraviolet lamp beads are fixedly installed inside the ultraviolet light generator housing through the lamp cover plate. The lamp cover plate has lamp bead holes corresponding to the ultraviolet lamp beads, and the surface of the lamp bead holes is coated with a mirror reflective material. The lamp cover is also provided with symmetrical buckles on the upper and lower sides, the ultraviolet light generator housing is provided with protrusions corresponding to the buckles, and the ultraviolet light generator housing is provided with limiting ribs for installing ultraviolet lamp beads. The module housing has a first groove that mates with the photocatalytic filter and a second groove that mates with the dust removal filter. The photocatalytic filter and the first groove are in a clearance fit, and the dust removal filter and the second groove are in a clearance fit.

2. The cylindrical modular photocatalytic unit for air conditioning according to claim 1, characterized in that, Both the photocatalytic filter and the dust removal filter have an embedded handle installed on one side; The embedded handle is fixed with a first locking block; The arc-shaped frame of both the photocatalytic filter and the dust removal filter is made of elastic alloy. Nano-titanium dioxide material is sintered on the photocatalytic filter.

3. The cylindrical modular photocatalytic unit for air conditioning according to claim 1, characterized in that, The module housing has a first mounting hole and a second mounting hole on one side for installing and removing the photocatalytic filter and the dust removal filter; The other side of the module housing is provided with a first limiting groove that cooperates with the photocatalytic filter and a second limiting groove that cooperates with the dust removal filter.

4. The cylindrical modular photocatalytic unit for air conditioning according to claim 1, characterized in that, The photocatalytic filter, ultraviolet lamp assembly, and dust removal filter are all in pairs and are installed symmetrically inside the module housing.

5. A cylindrical photocatalytic air conditioner, characterized in that, Includes the cylindrical modular photocatalytic unit for air conditioning, air conditioning unit, heat exchanger, impeller, air duct and air conditioning front cover as described in any one of claims 1 to 4; The cylindrical modular photocatalytic unit for air conditioning is installed between the air inlet grille and the heat exchanger on the back of the air conditioner, and the opening direction of the cylindrical structure of the modular photocatalytic unit for air conditioning matches the airflow direction.

6. A cylindrical photocatalytic air conditioner according to claim 5, characterized in that, The interior of the air conditioner unit has reserved space for the installation of a modular photocatalytic unit for cylindrical air conditioners; The air conditioner body has a photocatalytic filter installation slot and a dust removal filter installation slot reserved on one side. A second card block matching the first card block is provided in the photocatalytic filter installation slot and the dust removal filter installation slot.

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