A cabinet type air conditioning module type photocatalytic unit and application thereof

Abstract

The application discloses a cabinet type air conditioner module type photocatalysis unit and application thereof, and belongs to the field of air conditioner photocatalysis unit. The cabinet type air conditioner module type photocatalysis unit comprises a module end cover and a module shell; the module shell is internally provided with mutually parallel photocatalysis filter screens and HEPA filter screens, and the module shell is further provided with a parallel ultraviolet lamp with the photocatalysis filter screens; the ultraviolet lamp is provided with ballasts at two ends, and the ballasts are fixed on the module shell; the module end cover and the module shell are fixed through a pressing type elastic self-locking mechanism, the module end cover and the module shell surround a cylindrical structure, and the photocatalysis filter screens are perpendicular to the symmetry axis of the cylindrical structure. The cabinet type air conditioner module type photocatalysis unit has good overall effect, can be installed in the air duct of a vertical air conditioner to realize photocatalysis function of the air conditioner, is convenient to install and dismount, greatly reduces the maintenance cost of the photocatalysis unit, has small modification range for the vertical air conditioner, is convenient to further popularize and apply, and has good application prospect.

Description

Technical Field

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

[0002] Airborne pollutants such as bacteria and viruses are becoming increasingly serious, especially in medical facilities like hospitals where patients gather and move around frequently, making the spread and cross-infection of viruses and bacteria extremely easy. Existing air purification equipment and air conditioning are two separate devices, taking up a lot of space and costing a lot of money. Currently, hospitals commonly use ultraviolet lamps for disinfection, but because ultraviolet light is harmful to the human body, people must evacuate the room when using ultraviolet lamps, making it inconvenient.

[0003] Photocatalytic sterilization and virucidal technology boasts advantages such as low operating costs, high purification efficiency, mild reaction conditions, no secondary pollution, and low energy consumption. It can effectively purify indoor air pollutants, including bacteria, viruses, and formaldehyde, improving indoor air quality and reducing the incidence of various diseases. Combining air conditioning technology with photocatalytic purification technology to create air conditioning equipment with photocatalytic purification capabilities can meet the needs of medical settings for comfortable and healthy air.

[0004] CN 206556165 U discloses a photocatalytic air conditioner, including a dust filter, an ultraviolet LED lamp, a photocatalytic filter, and an air conditioner body. The air conditioner body is equipped with a dust filter, an ultraviolet LED lamp, a photocatalytic filter, a heat exchange system, and an antibacterial fan. The photocatalytic filter has a porous mesh structure. The ultraviolet LED lamp is provided with multiple sets to continuously provide light sources. The photocatalytic filter and the ultraviolet LED lamp form a core photocatalytic reaction area. Both the ultraviolet LED lamp and the photocatalytic filter are fixedly installed inside the air conditioner body. The disassembly and assembly of the photocatalytic reaction area is relatively cumbersome. In addition, the outer shell of the air conditioner body is provided with corresponding air outlets and air inlets.

[0005] However, this solution has drawbacks: the photocatalytic material is installed inside the air conditioner, making it difficult to replace and clean, and its sterilization efficiency decreases significantly after long-term use. This is because dust accumulates on the photocatalytic filter after a period of use, causing a sharp decline in purification effect, thus requiring regular cleaning or replacement. Furthermore, most current ultraviolet lamps use quartz glass ultraviolet lamp tubes, with an effective lifespan of less than 300 hours, requiring replacement after a period of use. Disassembling the air conditioner to clean or replace these components would incur significant time and labor costs.

[0006] Therefore, developing a photocatalytic unit for cabinet-type air conditioners that can be quickly installed / disassembled as a module is of great practical significance. Summary of the Invention

[0007] Due to the aforementioned deficiencies in the existing technology, the present invention provides a photocatalytic unit for a cabinet-type air conditioner that can be quickly installed / disassembled as a module, overcoming the shortcomings of inconvenient disassembly and installation and high equipment maintenance costs of existing photocatalytic air conditioner photocatalytic components.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A modular photocatalytic unit for a cabinet-type air conditioner includes a module end cap and a module housing;

[0010] The module housing contains a photocatalytic filter and a HEPA filter that are parallel to each other. The module housing also contains an ultraviolet lamp that is parallel to the photocatalytic filter. Ballasts are installed at both ends of the ultraviolet lamp and the ballasts are fixed to the module housing.

[0011] The module end cap and the module outer shell are fixed by a press-type elastic self-locking mechanism. The module end cap and the module outer shell form a cylindrical structure and the photocatalytic filter is perpendicular to the axis of symmetry of the cylindrical structure.

[0012] The modular photocatalytic unit for floor-standing air conditioners of this invention features a reasonable structural design that integrates functions into the filter, making it easy to operate. The presence of the HEPA filter significantly reduces PM2.5, and the photocatalytic filter, in conjunction with the ultraviolet lamp, effectively sterilizes and degrades harmful organic compounds in the air, resulting in excellent overall performance. The unit can be installed inside the air duct of a floor-standing air conditioner to achieve photocatalytic functionality. Installation / removal is convenient, greatly reducing the maintenance cost of the photocatalytic unit. The modification to the floor-standing air conditioner requires minimal effort (simply make openings in the back of the air conditioner and the air duct, and install the unit), facilitating further promotion and application, and showing promising application prospects.

[0013] As a preferred technical solution:

[0014] As described above, a modular photocatalytic unit for a cabinet-type air conditioner includes a press-type elastic self-locking mechanism comprising a plurality of first sliding grooves mounted on the module end cover and a plurality of second sliding grooves mounted on the module outer shell, wherein the positions of the second sliding grooves correspond one-to-one with the positions of the first sliding grooves.

[0015] A sliding plate is installed in the first sliding groove. The side of the sliding plate near the module end cover is fixedly connected to a sliding rod. A pushing block is fixedly fitted on the outside of the sliding rod. A first spring is installed on the side of the sliding plate away from the module end cover. A spring limiting ring is installed on the end of the first spring away from the sliding plate. The first spring is limited between the sliding plate and the spring limiting ring. The spring limiting ring is fixed to the inner wall of the first sliding groove.

[0016] A limiting block is fixed inside the second sliding groove, and a second spring is fitted outside the limiting block. The other side of the second spring is fixed to the sliding block, and the second spring is restricted between the sliding block and the bottom of the second sliding groove. A locking block matching the pushing block is fixed on the side of the sliding block away from the second spring.

[0017] When the press-type elastic self-locking mechanism achieves self-locking, the opening direction of the first sliding groove is perpendicular to the opening direction of the second sliding groove. This press-type elastic self-locking mechanism is ingeniously designed, enabling quick fixing and disassembly of the module end cap and module housing, facilitating maintenance personnel to remove the filter from the unit for cleaning or replacement.

[0018] As described above, in a modular photocatalytic unit for a cabinet-type air conditioner, the sliding plate is connected to the guide rod via a rotating joint on the side away from the module end cover. A guide groove matching the guide rod is opened on the inner wall of the first sliding groove, and the guide rod is slidably connected to the guide groove.

[0019] The upper contact surface between the locking block and the pushing block is an inclined surface;

[0020] The lower contact surface between the push block and the locking block is an inclined surface. When the sliding plate is pressed down, the push block will push the locking block. Pressing the push block against the locking block (exiting the locking groove) will achieve a press-type elastic self-locking.

[0021] As described above, in a modular photocatalytic unit for a cabinet-type air conditioner, the guide groove is stepped to ensure that the guide rod can only move along a specific trajectory and cannot go backwards;

[0022] The guide rod is made of an elastic alloy material that has a certain elasticity after deformation.

[0023] As described above, in a modular photocatalytic unit for a cabinet-type air conditioner, the outer wall of the first sliding groove is provided with a guide plate to facilitate the installation of the module end cap and the module shell.

[0024] The photocatalytic filter is a honeycomb structure plate (with good permeability), and its surface is sintered with nano-photocatalytic materials;

[0025] A rubber gasket is fitted around the outside of the photocatalytic filter to protect it and provide a buffering effect to some extent, preventing abnormal noise.

[0026] The modular photocatalytic unit for a cabinet-type air conditioner described above uses nano-photocatalytic material, which is nano-TiO2 material.

[0027] As described above, a modular photocatalytic unit for a cabinet-type air conditioner has a C-shaped overall outer shell. Multiple pairs of limiting grooves matching the photocatalytic filter and the HEPA filter are respectively opened on its opposite side walls. The photocatalytic filter and the HEPA filter are inserted into the module shell through the limiting grooves and completely cover the cross-section of the hollow part formed by the module shell and the module end cap.

[0028] As described above, a modular photocatalytic unit for a cabinet-type air conditioner has two photocatalytic filters arranged in parallel with a spacing between them.

[0029] There are two UV lamps: one UV lamp is installed between the two photocatalytic filters, and the other UV lamp is installed between the photocatalytic filter and the HEPA filter.

[0030] In addition, the present invention also provides a cabinet-type photocatalytic air conditioner, including the modular photocatalytic unit for cabinet-type air conditioners, air conditioner front cover, heat exchanger, dust filter, fan, air duct and air conditioner body as described above;

[0031] The modular photocatalytic unit for the cabinet-type air conditioner is installed from the back of the air conditioner into the air duct located between the fan and the heat exchanger, and the opening direction of the cylindrical structure of the modular photocatalytic unit matches the direction of the air duct, for purifying pollutants in indoor air.

[0032] The present invention relates to a cabinet-type photocatalytic air conditioner. The modular photocatalytic unit of the cabinet-type air conditioner has a simple and reliable connection with the cabinet-type air conditioner body. Compared with the existing cabinet-type air conditioners, the modification is small (the unit can be installed by opening holes in the back of the cabinet-type air conditioner and the air duct). It is easy to operate and has good application prospects.

[0033] As a preferred technical solution:

[0034] As described above, a cabinet-type photocatalytic air conditioner has mounting holes on the back of the air conditioner body for mounting a modular photocatalytic unit for cabinet-type air conditioners.

[0035] The modular photocatalytic unit for the cabinet-type air conditioner is fixed to the air conditioner body with bolts. Maintenance personnel can quickly remove / install the modular photocatalytic unit from the air conditioner and clean it periodically, resulting in high work efficiency.

[0036] 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.

[0037] The above invention has the following advantages or beneficial effects:

[0038] (1) The modular photocatalytic unit for cabinet-type air conditioners of the present invention, through the press-type elastic self-locking mechanism between the module end cover and the module shell, can realize the quick disassembly and assembly of the photocatalytic filter and ultraviolet lamp in the photocatalytic module. When it is necessary to remove the filter or ultraviolet lamp for cleaning or replacement, simply press the button on the upper part of the sliding rod. The sliding rod will drive the push block to push the locking block. After the locking block is pushed by the push block, it leaves the locking groove. At this time, releasing the button will cause the push block to automatically lock under the action of the guide rod and the guide groove, preventing the locking block from being locked. Returning to the locking slot, remove the module end cover to take out the filter and UV lamp inside the module. When it is necessary to install the filter and UV lamp into the module, first install the filter or UV lamp into the module housing, press the button again, release it and push the block to release the lock and return to its original position. Then push the second sliding groove on the module end cover into the end cover housing along the guide plate. The locking block enters the locking slot under the push of the second spring, completing the installation of the filter and UV lamp. The disassembly and assembly of the filter and UV lamp is simple, greatly saving labor and time costs.

[0039] (2) The modular photocatalytic unit for cabinet air conditioners of the present invention uses an aluminum honeycomb structure with good permeability for the photocatalytic filter plate. Compared with other filter structures, it reduces the resistance of the airflow filter and has less impact on the performance of the air conditioner.

[0040] (3) The modular photocatalytic unit for cabinet air conditioner of the present invention has a rubber gasket on the outside of the photocatalytic filter, which makes the module end cover fit more tightly with the filter, preventing air leakage after the module is installed. At the same time, the rubber gasket can also protect the photocatalytic filter and prevent the filter from being damaged.

[0041] (4) The cabinet-type photocatalytic air conditioner of the present invention has a simple and reliable connection between the modular photocatalytic unit and the cabinet-type air conditioner body. Compared with the existing cabinet-type air conditioners, the modification is small (the unit can be installed by opening holes in the back of the cabinet-type air conditioner and the air duct). It is easy to operate and has good application prospects. Attached Figure Description

[0042] 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 focus is on illustrating the gist of the invention.

[0043] Figure 1 An exploded view of a modular photocatalytic unit for a cabinet-type air conditioner;

[0044] Figure 2 An isometric sectional view of a modular photocatalytic unit for a cabinet-type air conditioner;

[0045] Figure 3 for Figure 2Enlarged view of position A in the middle;

[0046] Figure 4 A schematic diagram of the motion state of the press-type elastic self-locking mechanism of the modular photocatalytic unit for a cabinet-type air conditioner;

[0047] Figure 5 A schematic diagram of the exterior of a cabinet-type photocatalytic air conditioner;

[0048] Figure 6 A schematic diagram of a vertical cabinet-type photocatalytic air conditioner;

[0049] Figure 7 A cross-sectional view of a modular photocatalytic unit for a cabinet-type air conditioner inside a cabinet-type photocatalytic air conditioner.

[0050] The components are as follows: 1-Air conditioner body; 2-Air conditioner front cover; 3-Modular photocatalytic unit for floor-standing air conditioner; 4-Heat exchanger; 5-Dust filter; 6-Fan; 7-Air duct; 8-Air inlet; 9-Air outlet; 10-Module housing; 11-Ultraviolet lamp; 12-Ballast; 13-Photocatalytic filter; 14-HEPA filter; 15-Module end cover; 16-Sliding rod; 17-Push block; 18-Sliding plate; 19-First spring; 20-Spring limiting ring; 21-Guide rod; 22-Guide groove; 23-Limiting block; 24-Second spring; 25-Sliding block; 26-Locking block; 27-First sliding groove; 28-Second sliding groove; 29-Locking groove; 30-Guide plate; 31-Rubber gasket. Detailed Implementation

[0051] 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.

[0052] Example 1

[0053] A modular photocatalytic unit for a cabinet-type air conditioner, such as Figures 1-4 As shown, it includes a module end cap 15 and a module housing 10;

[0054] The module housing 10 has an overall U-shaped structure. Multiple pairs of limiting grooves matching the photocatalytic filter 13 and the HEPA filter 14 are respectively formed on its opposite side walls. The photocatalytic filter 13 and the HEPA filter 14 are inserted into the module housing 10 through the limiting grooves and completely cover the cross-section of the hollow section of the square cylindrical structure formed by the module housing 10 and the module end cap 15. The two photocatalytic filters 13 and one HEPA filter 14 are parallel to each other, and the two photocatalytic filters 13 are arranged with parallel spacing. Two ultraviolet lamps 11 parallel to the photocatalytic filters 13 are also installed inside the module housing 10. Ballasts 12 are installed at both ends of the module and are fixed to the module housing 10. One ultraviolet lamp 11 is installed between two photocatalytic filters 13, and another ultraviolet lamp 11 is installed between the photocatalytic filter 13 and the HEPA filter 14. The photocatalytic filter 13 is a honeycomb structure plate with nano-photocatalytic material (nano-TiO2 material) sintered on its surface. A rubber gasket 31 is fitted on the outside of the photocatalytic filter 13. The rubber gasket 31 can make the module end cover 15 fit more tightly with the filter to prevent air leakage. At the same time, the rubber gasket can protect the filter and prevent the filter from being damaged.

[0055] The module end cap 15 and the module outer shell 10 are fixed by a press-type elastic self-locking mechanism. The press-type elastic self-locking mechanism includes multiple first sliding grooves 27 installed on the module end cap 15 and multiple second sliding grooves 28 installed on the module outer shell 10. The positions of the second sliding grooves 28 and the first sliding grooves 27 are one-to-one. A sliding plate 18 is installed in the first sliding groove 27. The side of the sliding plate 18 near the module end cap 15 is fixedly connected to a sliding rod 16. A push block 17 is fixedly fitted on the outside of the sliding rod 16. A first spring 19 is installed on the side of the sliding plate 18 away from the module end cap 15. A spring limiting ring 20 is installed on the end of the first spring 19 away from the sliding plate 18. The first spring 19 is limited between the sliding plate 18 and the spring limiting ring 20. The spring limiting ring 20 is fixed to the inner wall of the first sliding groove 27. A limiting block 23 is fixed in the second sliding groove 28. A second spring 24 is fitted on the outside of the limiting block 23. The other side of the second spring 24 is connected to the sliding block. 25 is fixed, the second spring 24 is restricted between the bottom of the sliding block 25 and the second sliding groove 28, the sliding block 25 is fixed with a locking block 26 that matches the push block 17 on the side away from the second spring 24, when the press-type elastic self-locking mechanism realizes self-locking, the slotting direction of the first sliding groove 27 is perpendicular to the slotting direction of the second sliding groove 28, the sliding plate 18 is connected to the guide rod 21 (the material of which is an elastic alloy material with a certain elasticity after deformation) through a rotating joint on the side away from the module end cover 15, the inner wall of the first sliding groove 27 is provided with a stepped guide groove 22 that matches the guide rod 21, the guide rod 21 and the guide groove 22 are slidably connected, the upper contact surface of the locking block 26 and the push block 17 is inclined, the lower contact surface of the push block 17 and the locking block 26 is inclined, the outer wall of the first sliding groove 27 is provided with a guide plate 30 (when installing the photocatalytic filter 13 or the ultraviolet lamp 11, the connection between the module shell 10 and the module end cover 15 can be more convenient and quick);

[0056] The module end cap 15 and the module outer shell 10 form a cylindrical structure, and the photocatalytic filter 13 is perpendicular to the axis of symmetry of the cylindrical structure.

[0057] Specifically, the ballast 12 is connected to the air conditioner control box via a power cord and is powered by the air conditioner, requiring no additional control system or power supply. The ultraviolet lamp 11 has a wavelength of 253.7nm and a power of 8W.

[0058] When the sliding rod 16 drives the sliding plate 18 to move up or down, the sliding plate 18 will drive the guide rod to move. Since the guide groove 22 is designed as a stepped shape, the guide rod can only move along a specific trajectory in the guide groove and cannot go backwards, thus ensuring that the press-type elastic self-locking mechanism can repeatedly lock and unlock.

[0059] The specific motion process of the press-type elastic self-locking mechanism is as follows:

[0060] When the photocatalytic filter 13 or ultraviolet lamp 11 in the modular photocatalytic unit 3 of the floor-standing air conditioner needs to be disassembled, press the button on the upper part of the sliding rod 16. The button pushes the sliding rod 16 to move downward. The sliding rod drives the push block 17 and the sliding plate 18 to move downward. The push block 17 pushes the locking block 26 out of the locking groove 29. At the same time, the sliding plate 18 pushes the guide rod 21 downward and squeezes the first spring 19 downward. The spring stores energy. The guide rod moves along the guide groove to the bottom right side. Then release the button. The first spring 19 pushes the sliding plate 18 upward. The sliding plate 18 drives the guide rod 21 to move upward along the guide groove 22 until it is stuck in the middle groove at the bottom of the guide groove 22. The push block 17 is locked to prevent the locking block 26 from re-entering the locking groove 29. At this time, remove the module end cover 15, and the filter and ultraviolet lamp can be removed.

[0061] When it is necessary to install the filter or ultraviolet lamp into the modular photocatalytic unit 3 for the floor-standing air conditioner, first install the filter or ultraviolet lamp into the module housing 10, then press the button on the upper part of the sliding rod 16 again. The sliding rod 16 pushes the sliding plate 18 downward, and the sliding plate 18 squeezes the first spring 19. The spring stores energy and simultaneously drives the guide rod 21 to move along the guide groove 22 to the bottom left. After releasing the button, the first spring 19 pushes the sliding plate 18 upward, and the sliding plate 18 pushes the sliding rod 16 upward. Finally, the sliding rod 16 drives the push block 17 back to its original position. At this time, push the first sliding groove 27 on the module end cover 15 into the module housing 10 along the guide plate 30. The locking block 26 enters the locking groove 29 under the push of the second spring 24, completing the installation.

[0062] Example 2

[0063] A type of floor-standing photocatalytic air conditioner, such as Figures 5-7 As shown, it includes the modular photocatalytic unit 3 for the cabinet-type air conditioner, the air conditioner front cover 2, the heat exchanger 4, the dust filter 5, the fan 6, the air duct 7, and the air conditioner body 1 as described above;

[0064] The modular photocatalytic unit 3 for the cabinet air conditioner is installed from the back of the air conditioner body 1 into the air duct 6 located between the fan 6 and the heat exchanger 4 (the back of the air conditioner body 1 has reserved mounting holes for the modular photocatalytic unit 3 for the cabinet air conditioner, and the modular photocatalytic unit 3 for the cabinet air conditioner is fixed to the air conditioner body 1 by bolts). The opening direction of the cylindrical structure of the modular photocatalytic unit 3 for the cabinet air conditioner matches the direction of the air duct 6.

[0065] Indoor air is drawn in through the air inlet 8 by the fan 6 inside the air conditioner unit 1. It first flows through the dust filter 5 to remove some of the dust and larger particles such as mosquitoes. Then it enters the air duct 7 and flows through the two layers of photocatalytic filters 13 and one layer of HEPA filter 14 in the photocatalytic module. Bacteria, viruses, organic matter and other substances in the air undergo oxidation-reduction reactions on the surface of the photocatalytic filter 13 and are decomposed into water and CO2. The purified air then enters the heat exchanger 4 for heat exchange and finally flows out from the air outlet 9 and is sent into the room.

[0066] 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.

[0067] 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 a floor-standing air conditioner, characterized in that: Includes module end caps and module housing; The module housing contains a photocatalytic filter and a HEPA filter that are parallel to each other. The module housing also contains an ultraviolet lamp that is parallel to the photocatalytic filter. Ballasts are installed at both ends of the ultraviolet lamp and the ballasts are fixed to the module housing. The module end cap and the module outer shell are fixed by a press-type elastic self-locking mechanism. The module end cap and the module outer shell form a cylindrical structure and the photocatalytic filter is perpendicular to the axis of symmetry of the cylindrical structure. The press-type elastic self-locking mechanism includes multiple first sliding grooves installed on the module end cover and multiple second sliding grooves installed on the module outer shell, with the positions of the second sliding grooves corresponding one-to-one with the first sliding grooves; A sliding plate is installed in the first sliding groove. The side of the sliding plate near the module end cover is fixedly connected to a sliding rod. A pushing block is fixedly fitted on the outside of the sliding rod. A first spring is installed on the side of the sliding plate away from the module end cover. A spring limiting ring is installed on the end of the first spring away from the sliding plate. The first spring is limited between the sliding plate and the spring limiting ring. The spring limiting ring is fixed to the inner wall of the first sliding groove. A limiting block is fixed inside the second sliding groove, and a second spring is fitted outside the limiting block. The other side of the second spring is fixed to the sliding block, and the second spring is restricted between the sliding block and the bottom of the second sliding groove. A locking block matching the pushing block is fixed on the side of the sliding block away from the second spring. When the press-type elastic self-locking mechanism achieves self-locking, the opening direction of the first sliding groove is perpendicular to the opening direction of the second sliding groove; The sliding plate is connected to the guide rod via a rotating joint on the side away from the module end cover. The inner wall of the first sliding groove has a guide groove that matches the guide rod, and the guide rod is slidably connected to the guide groove. The upper contact surface between the locking block and the pushing block is an inclined surface; The lower contact surface between the push block and the locking block is an inclined surface; The guide groove is stepped; The guide rod is made of an elastic alloy material that has a certain elasticity after deformation; The modular photocatalytic unit for the floor-standing air conditioner is installed in the pre-drilled mounting holes on the back of the air conditioner unit. The specific motion process of the press-type elastic self-locking mechanism is as follows: Press the button on the upper part of the sliding rod. The button pushes the sliding rod to move downward. The sliding rod drives the push block and the sliding plate to move downward. The push block pushes the locking block out of the locking groove. At the same time, the sliding plate pushes the guide rod downward and squeezes the first spring downward. The spring stores energy. The guide rod moves along the guide groove to the bottom right side. Then release the button. The first spring pushes the sliding plate upward. The sliding plate drives the guide rod to move upward along the guide groove to the middle groove at the bottom of the guide groove and get stuck. The push block is locked. Press the button on the top of the sliding rod again. The sliding rod pushes the sliding plate downward. The sliding plate compresses the first spring, which stores energy. At the same time, it drives the guide rod to move along the guide groove to the bottom left. After releasing the button, the first spring pushes the sliding plate upward. The sliding plate pushes the sliding rod upward. Finally, the sliding rod drives the push block back to its original position.

2. The modular photocatalytic unit for a cabinet-type air conditioner according to claim 1, characterized in that, The outer wall of the first sliding groove is provided with a guide plate; The photocatalytic filter is a honeycomb structure plate with nano-photocatalytic materials sintered on its surface; A rubber gasket is fitted around the outside of the photocatalytic filter.

3. A modular photocatalytic unit for a cabinet-type air conditioner according to claim 2, characterized in that, The nano-photocatalytic material is a nano-TiO2 material.

4. The modular photocatalytic unit for a cabinet-type air conditioner according to claim 1, characterized in that, The module housing is generally U-shaped, with multiple pairs of limiting grooves on its opposite side walls that match the photocatalytic filter and the HEPA filter. The photocatalytic filter and the HEPA filter are inserted into the module housing through the limiting grooves and completely cover the cross-section of the hollow part formed by the module housing and the module end cap.

5. A modular photocatalytic unit for a cabinet-type air conditioner according to claim 1, characterized in that, The photocatalytic filter consists of two parts, and the two photocatalytic filters are arranged in parallel with a spacing between them; There are two UV lamps: one UV lamp is installed between the two photocatalytic filters, and the other UV lamp is installed between the photocatalytic filter and the HEPA filter.

6. A cabinet-type photocatalytic air conditioner, characterized in that, Includes the modular photocatalytic unit for cabinet-type air conditioners, air conditioner front cover, heat exchanger, dust filter, fan, air duct and air conditioner body as described in any one of claims 1 to 5; The modular photocatalytic unit for the cabinet-type air conditioner is installed from the back of the air conditioner into the air duct located between the fan and the heat exchanger, and the opening direction of the cylindrical structure of the modular photocatalytic unit for the cabinet-type air conditioner matches the direction of the air duct.

7. A cabinet-type photocatalytic air conditioner according to claim 6, characterized in that, The back of the air conditioner unit has pre-drilled mounting holes for a modular photocatalytic unit for a cabinet-type air conditioner. The modular photocatalytic unit for the cabinet-type air conditioner is fixed to the air conditioner body with bolts.

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