Antibacterial and mildew-proof sheet, air duct structure and air conditioner

Abstract

This application provides an antibacterial and anti-mold sheet, an air duct structure, and an air conditioner. The shape of the antibacterial and anti-mold sheet is adapted to the shape of at least a portion of the inner wall surface of the air duct, so that the antibacterial and anti-mold sheet can be installed on and cover at least a portion of the inner wall surface of the air duct. The antibacterial and anti-mold sheet includes a sheet-like substrate and an antibacterial and anti-mold layer disposed on the substrate, the antibacterial and anti-mold layer being located on the surface of the substrate facing away from the inner wall surface of the air duct. By installing the antibacterial and anti-mold sheet on the inner wall surface of the air duct, mold and bacterial growth on the inner wall surface of the air duct can be inhibited, thereby protecting the user's health. Furthermore, the antibacterial and anti-mold sheet achieves its antibacterial and anti-mold effect using its own antibacterial and anti-mold layer, without the need for electrical operation, thus eliminating the need for users to perform regular sterilization, thereby improving the user experience. This solution only requires at least a portion of the inner wall surface of the air duct to have an antibacterial and anti-mold effect, thus helping to reduce the cost of the air duct structure and the cost of the air conditioner.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air handling equipment technology, specifically to an antibacterial and anti-mildew sheet, an air duct structure, and an air conditioner. Background Technology

[0002] During long-term use, air conditioner ducts are prone to mold and bacteria growth. To address this issue, some products have installed ultraviolet lamps inside the air conditioner to achieve sterilization using ultraviolet light. However, this requires users to perform sterilization regularly, resulting in a less than ideal user experience. Utility Model Content

[0003] The technical problem to be solved by this application is to provide an antibacterial and anti-mildew sheet, an air duct structure and an air conditioner, which helps to reduce the risk of mold and bacteria growth in the air duct, and eliminates the need for users to sterilize regularly, thereby improving the user experience.

[0004] This application provides an antibacterial and anti-mildew sheet, the shape of which is adapted to at least a portion of the inner wall surface of an air duct, so that the antibacterial and anti-mildew sheet can be installed on the inner wall surface of the air duct and cover at least a portion of the inner wall surface of the air duct; the antibacterial and anti-mildew sheet includes: a sheet-like substrate and an antibacterial and anti-mildew layer disposed on the substrate, the antibacterial and anti-mildew layer being located on the surface of the substrate facing away from the inner wall surface of the air duct.

[0005] Based on the above technical solution, the following improvements can be made to this application.

[0006] In one exemplary embodiment, the substrate is a metal substrate; the metal substrate is a stainless steel substrate or an aluminum alloy substrate.

[0007] In one exemplary embodiment, the antibacterial and antifungal layer is a polytetrafluoroethylene coating with added antibacterial and antifungal additives; or, the antibacterial and antifungal layer is an organic paint coating.

[0008] This application also provides an air duct structure, including: an air duct component that surrounds at least a portion of the air duct; and an antibacterial and antifungal sheet as described in any of the above embodiments, installed on the inner wall surface of the air duct and covering at least a portion of the inner wall surface of the air duct.

[0009] In an exemplary embodiment, the air duct component includes an air duct section and a chassis section, the air duct section enclosing a portion of the air duct, the chassis section being connected to the bottom of the air duct section and bent relative to the air duct section; the antibacterial and anti-mildew sheet is installed on the inner wall surface of the air duct section and connected to the air duct section and the chassis section.

[0010] In one exemplary embodiment, the antibacterial and antifungal sheet is snapped onto the air duct section.

[0011] In an exemplary embodiment, the antibacterial and anti-mildew sheet is provided with a first locking hole, the air duct is provided with a second locking hole, and the air duct structure further includes a buckle, which passes through the first locking hole and the second locking hole, so that the antibacterial and anti-mildew sheet is snapped into the air duct.

[0012] In an exemplary embodiment, the buckle includes a cap and at least one hook disposed on the cap. The hook includes a connecting portion and a hook portion connected to the connecting portion. The cap covers the first buckle hole, the connecting portion passes through the first buckle hole and the second buckle hole, and the hook portion hooks onto the outer wall surface of the air duct portion to prevent the buckle from disengaging from the air duct portion.

[0013] In one exemplary embodiment, the antibacterial and antifungal sheet is adhered to the air duct section.

[0014] In one exemplary embodiment, the chassis portion has a buckle at one end near the air duct portion, and the antibacterial and anti-mildew sheet is sandwiched between the buckle and the air duct portion at the end near the chassis portion; or, the chassis portion has a riveting post at one end near the air duct portion, and the antibacterial and anti-mildew sheet has a riveting hole at one end near the chassis portion, the riveting pin passes through the riveting hole, and the head of the riveting pin can be deformed to fasten to the antibacterial and anti-mildew sheet, so that the antibacterial and anti-mildew sheet is riveted to the chassis portion.

[0015] This application also provides an air conditioner, including the air duct structure as described in any of the above embodiments.

[0016] This embodiment of the application, by installing an antibacterial and anti-mold sheet on the inner wall of the air duct, can inhibit mold growth and bacterial proliferation on the inner wall of the air duct, thereby protecting the user's health. Furthermore, the antibacterial and anti-mold sheet achieves its antibacterial and anti-mold effect using its own antibacterial and anti-mold layer, requiring no electricity, thus eliminating the need for users to perform regular sterilization, thereby improving the user experience.

[0017] Furthermore, compared to the solution of adding antibacterial and antifungal additives during the injection molding process of air duct components to make the entire air duct component have antibacterial and antifungal effects, this solution only needs to make at least a part of the inner wall surface of the air duct have antibacterial and antifungal effects, which helps to reduce the cost of the air duct structure and the cost of air conditioning. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of an air conditioner provided in some embodiments of this application;

[0019] Figure 2 for Figure 1 The diagram shows the main structural layout of the air conditioner.

[0020] Figure 3 for Figure 2 A schematic cross-sectional view of the air conditioner along direction AA.

[0021] Figure 4 for Figure 3 Enlarged structural diagram of section B in the middle;

[0022] Figure 5 This is a three-dimensional structural diagram of the antibacterial and antifungal sheet provided in some embodiments of this application;

[0023] Figure 6 This is a three-dimensional structural diagram of the buckle provided in some embodiments of this application;

[0024] Figure 7 A three-dimensional structural schematic diagram of the air duct component provided in some embodiments of this application;

[0025] Figure 8 for Figure 7 A schematic diagram of the main structure of the air duct component shown;

[0026] Figure 9 for Figure 8 A schematic cross-sectional view of the air duct component shown in the CC direction;

[0027] Figure 10 for Figure 9 Enlarged structural diagram of section D in the middle;

[0028] Figure 11 This is a three-dimensional structural diagram of the air duct structure provided in some embodiments of this application;

[0029] Figure 12 for Figure 11 The diagram shows the front view of the air duct structure.

[0030] Figure 13 for Figure 12 The diagram shows a cross-sectional view of the air duct structure along the EE direction.

[0031] Figure 14 for Figure 13 A magnified structural diagram of section F in the middle.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Air duct component, 11. Air duct section, 111. Second clip hole, 112. Flanged edge, 113. Opening, 12. Chassis section, 121. Fastener, 13. Reinforcing rib;

[0034] 2 Antibacterial and anti-mildew sheet, 21 First card hole, 22 Avoidance notch;

[0035] 3 buckles, 31 caps, 32 hooks, 321 connecting parts, 322 hook parts;

[0036] 4. Casing; 5. Heat exchanger; 6. Fan wheel; 7. Air guide plate; 8. Air duct.

[0037] 100 air conditioner. Detailed Implementation

[0038] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0039] This application provides an antibacterial and antifungal sheet 2 (such as...). Figure 5 (as shown) and air duct structure (such as) Figures 11 to 14 (As shown). The air duct structure includes: an air duct component 1 and an antibacterial and anti-mildew sheet 2. The shape of the antibacterial and anti-mildew sheet 2 is adapted to the shape of at least a portion of the inner wall surface of the air duct 8, so that the antibacterial and anti-mildew sheet 2 can be installed on the inner wall surface of the air duct 8 and cover at least a portion of the inner wall surface of the air duct 8. The air duct component 1 can be, but is not limited to, an injection-molded part. The preparation method of the antibacterial and anti-mildew layer is not limited and can be spraying, coating, electroplating, chemical coating, deposition, etc. Accordingly, the antibacterial and anti-mildew layer can be in the form of a coating, plating, deposition layer, etc.

[0040] The duct component 1 encloses at least a portion of the duct 8. In other words, the duct component 1 can enclose a complete duct 8 or only a portion of it. Besides the function of the duct 8, the duct component 1 can also have other functions. For example, for a wall-mounted air conditioner indoor unit, a portion of the duct 8 can be located on the chassis, thus the chassis is the duct component 1. However, the duct component 1, in addition to the function of the duct 8, also functions as a chassis (such as supporting other components or acting as a drip tray). However, the inner wall of the duct 8 is susceptible to mold and bacterial growth due to contact with moisture in the airflow, which can be discharged into the indoor space with the airflow, affecting user health. Therefore, mold and bacteria prevention is necessary.

[0041] An antibacterial and anti-mildew sheet 2 is installed on the inner wall of the air duct 8, covering at least a portion of the inner wall of the air duct 8. The antibacterial and anti-mildew sheet 2 includes a sheet-like substrate and an antibacterial and anti-mildew layer disposed on the substrate. The antibacterial and anti-mildew layer is located on the surface of the substrate facing away from the inner wall of the air duct 8. The antibacterial and anti-mildew layer faces the inner side of the air duct 8 and is in direct contact with the airflow within the air duct 8, thus providing antibacterial and anti-mildew effects and helping to inhibit mold growth and bacterial proliferation within the air duct 8.

[0042] This embodiment of the application, by installing an antibacterial and anti-mold sheet 2 on the inner wall of the air duct 8, can inhibit mold growth and bacterial proliferation on the inner wall of the air duct 8, thereby protecting the user's health. Furthermore, the antibacterial and anti-mold sheet 2 achieves its antibacterial and anti-mold effect using its own antibacterial and anti-mold layer, requiring no electrical operation, thus eliminating the need for users to perform regular sterilization, thereby improving the user experience.

[0043] Furthermore, compared to the solution of adding antibacterial and antifungal additives during the injection molding process of the air duct component 1 to make the entire air duct component 1 have antibacterial and antifungal effects, this solution only needs to make at least a part of the inner wall surface of the air duct 8 have antibacterial and antifungal effects, which is beneficial to reducing the cost of the air duct structure and the cost of the air conditioner 100.

[0044] In some exemplary embodiments, the antibacterial and antifungal layer is a polytetrafluoroethylene (PTFE) coating with added antibacterial and antifungal additives. These additives can be, but are not limited to, titanium ions, silver ions, zinc ions, or other additives with antibacterial and antifungal effects. PTFE has good hydrophobicity, making it difficult for bacteria and dirt to adhere to the surface of the antibacterial and antifungal layer; instead, they are carried away by dripping condensate, thus improving the self-cleaning effect of the antibacterial and antifungal layer. The antibacterial and antifungal additives provide good antibacterial and antifungal effects to achieve the antibacterial and antifungal function.

[0045] This solution only requires setting antibacterial and anti-mildew additives within the antibacterial and anti-mildew layer, eliminating the need to add antibacterial and anti-mildew additives throughout the entire air duct component 1. This reduces the amount of antibacterial and anti-mildew additives needed, lowers the cost of the air duct structure, and consequently reduces the cost of the air conditioner 100.

[0046] In other embodiments, the antibacterial and antifungal layer is an organic paint coating, such as an epoxy resin coating, a fluorocarbon resin coating, or a fluorocarbon-modified acrylic polyurethane resin coating, which can also achieve antibacterial and antifungal effects.

[0047] In some exemplary embodiments, the substrate is a metal substrate. Metal substrates have good strength and rigidity, and are easy to process into shapes that fit the air duct 8, facilitating the stable coverage of the antibacterial and antifungal sheet 2 on the inner wall of the air duct 8. Furthermore, compared to plastic parts, metal itself has better antibacterial and antifungal properties, thus improving the antibacterial and antifungal effect of the antibacterial and antifungal sheet 2.

[0048] In some embodiments, the substrate is a stainless steel substrate, which is less prone to rusting, thus reducing the risk of mold and bacterial growth in the air duct 8. In other embodiments, the substrate is an aluminum alloy substrate.

[0049] Of course, the substrate can also be other materials, such as copper alloy substrate or plastic substrate.

[0050] In some exemplary embodiments, such as Figure 4 and Figure 14 As shown, the air duct component 1 includes an air duct section 11 and a chassis section 12. The air duct section 11 encloses a portion of the air duct 8, realizing the function of the air duct 8. The other part of the air duct 8 can be formed by components such as the volute or casing of the fan. The chassis section 12 is connected to the bottom of the air duct section 11 and is bent relative to the air duct section 11 to realize functions such as chassis support.

[0051] The antibacterial and anti-mildew sheet 2 is installed on the inner wall of the air duct section 11 to provide antibacterial and anti-mildew protection for the air duct 8. Furthermore, the antibacterial and anti-mildew sheet 2 is connected to the air duct section 11 and the chassis section 12 to improve the positional stability of the antibacterial and anti-mildew sheet 2, thereby improving the reliability of the antibacterial and anti-mildew sheet 2 in use.

[0052] In some exemplary embodiments, such as Figure 4 and Figure 14 As shown, the antibacterial and anti-mildew sheet 2 is snapped onto the air duct section 11. The snap-fit ​​installation method is simple and quick, which helps to improve the assembly efficiency of the air conditioner 100.

[0053] Of course, the connection method between the antibacterial and anti-mildew sheet 2 and the air duct section 11 is not limited to the snap-fit ​​method. For example, the antibacterial and anti-mildew sheet 2 can be glued to the air duct section 11, that is, it can be fixed to the air duct section 11 by adhesive. Alternatively, the antibacterial and anti-mildew sheet 2 can also be fixed to the air duct section 11 by fasteners (such as screws), welding, etc.

[0054] In some exemplary embodiments, such as Figure 5 As shown, the antibacterial and anti-mildew sheet 2 has a first locking hole 21, and the air duct section 11 has a second locking hole 111. The air duct structure also includes a buckle 3, such as... Figure 6 As shown. The buckle 3 passes through the first locking hole 21 and the second locking hole 111, allowing the antibacterial and anti-mildew sheet 2 to be secured to the air duct section 11, as shown. Figure 4 and Figure 14 As shown.

[0055] In this way, during installation, the antibacterial and anti-mildew sheet 2 is placed against the air duct section 11, and then the buckle 3 is pressed into place against the first snap hole 21, which can achieve the snap-fit ​​and fixation of the antibacterial and anti-mildew sheet 2 and the air duct section 11. The operation is simple and quick.

[0056] Among them, such as Figure 11As shown, there can be multiple clips 3, which are spaced apart along the length of the antibacterial and anti-mildew sheet 2. There are also multiple first and second clip holes 111, each corresponding to one of the clips 3. This allows for multi-part fixation of the antibacterial and anti-mildew sheet 2, preventing localized warping or skewing, thus improving the reliability of the clips. The circumferential edge of the second clip hole 111 can be provided with an outwardly folded flange 112, which the clip 3 can hook onto to prevent it from detaching from the air duct section 11.

[0057] In other embodiments, the buckle 3 may not be a separate component, but may be integrally formed with the antibacterial and anti-mildew sheet 2 or with the air duct section 11, as long as the antibacterial and anti-mildew sheet 2 and the air duct section 11 can be connected by snapping.

[0058] In some exemplary embodiments, such as Figure 6 and Figure 14 As shown, the buckle 3 includes a cap 31 and at least one hook 32 disposed on the cap 31. The hook 32 includes a connecting portion 321 and a hook portion 322 connected to the connecting portion 321. The cap 31 covers the first locking hole 21, and the connecting portion 321 passes through the first locking hole 21 and the second locking hole 111. The hook portion 322 hooks onto the outer wall surface of the air duct portion 11 to prevent the buckle 3 from disengaging from the air duct portion 11.

[0059] The cap 31 can cover the first locking hole 21 to prevent air leakage from the first locking hole 21. The hook 32 can realize the locking function, so that the antibacterial and anti-mildew sheet 2 can be locked onto the air duct 11.

[0060] In one embodiment, the cap 31 can be, but is not limited to, circular, and the number of hooks 32 is two, with the two hooks 32 arranged back to back, such as... Figure 6 As shown.

[0061] In some exemplary embodiments, such as Figure 7 , Figure 8 and Figure 10 As shown, the chassis portion 12 has a latch 121 at one end near the air duct portion 11. The antibacterial and anti-mildew sheet 2 is sandwiched between the latch 121 and the air duct portion 11 at the end near the chassis portion 12, as shown. Figure 4 and Figure 14 As shown.

[0062] In this way, during installation, the end of the antibacterial and anti-mildew sheet 2 near the chassis 12 can be directly inserted between the buckle 121 and the air duct 11, which can limit the antibacterial and anti-mildew sheet 2 and facilitate the positioning of the relative position of the antibacterial and anti-mildew sheet 2 and the air duct 11. Then, the antibacterial and anti-mildew sheet 2 and the air duct 11 can be fixed, which helps to improve the installation efficiency of the antibacterial and anti-mildew sheet 2 and the air duct component 1.

[0063] Among them, such as Figure 7 and Figure 8 As shown, there can be multiple latches 121, which are spaced apart along the length of the antibacterial and anti-mildew sheet 2. This allows for multi-part fixation of the antibacterial and anti-mildew sheet 2, helping to prevent localized lifting or skewing, thus improving the reliability of the latching. An opening 113 can be provided at the position opposite to the latches 121 in the air duct section 11 to reduce the difficulty of demolding during the injection molding process of the air duct component 1.

[0064] In some exemplary embodiments (not shown in the figures), the chassis portion 12 is provided with a riveting post at one end near the air duct portion 11, and the antibacterial and anti-mildew sheet 2 is provided with a riveting hole at one end near the chassis portion 12. The riveting post passes through the riveting hole, and the head of the riveting post can be deformed (e.g., deformed by pressing after heat melting, or by external force knocking) to fasten to the antibacterial and anti-mildew sheet 2, so that the antibacterial and anti-mildew sheet 2 is riveted to the chassis portion 12.

[0065] This solution enables the antibacterial and anti-mildew sheet 2 to be riveted to the chassis part 12, resulting in a high connection strength and a relatively reliable fixation.

[0066] The device can have multiple riveting posts, which are spaced apart along the length of the antibacterial and anti-mildew sheet 2. The number of riveting holes is equal to the number of riveting posts and corresponds one-to-one. This allows for multi-part fixation of the antibacterial and anti-mildew sheet 2, which helps prevent local warping or skewing of the sheet 2, thereby improving the reliability of the snap-fit ​​connection.

[0067] In some exemplary embodiments, a reinforcing rib 13 is provided at the middle of the length direction of the air duct component 1, such as... Figure 7 As shown. The reinforcing rib 13 helps improve the strength of the air duct component 1 and reduces the risk of deformation. The antibacterial and antifungal sheet 2 has a clearance notch 22 to avoid the reinforcing rib 13, such as... Figure 5 As shown. The reinforcing rib 13 passes through the clearance notch 22, as... Figure 11 As shown.

[0068] like Figures 1 to 4 As shown, this application embodiment also provides an air conditioner 100, which includes the air duct structure of any of the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0069] Among them, the type of air conditioner 100 is not limited. It can be the indoor unit of a split air conditioner (such as a wall-mounted air conditioner indoor unit, a cabinet air conditioner indoor unit, a ceiling-mounted air conditioner indoor unit, etc.), a split air conditioner unit (including indoor and outdoor units), or an integrated air conditioner.

[0070] In some embodiments, such as Figures 1 to 3 As shown, air conditioner 100 is a wall-mounted indoor unit. The wall-mounted indoor unit includes a casing 4, which has an air inlet and an air outlet connected to an air duct 8. An air guide plate 7 is located at the air outlet. The casing 4 houses a heat exchanger 5, a fan, and other components. The fan impeller 6 is located within the air duct 8. The air duct components 1 form the chassis, such as... Figures 7 to 9 As shown, the lower middle part of the chassis is provided with the aforementioned air duct section 11 and chassis section 12, and the front part of the chassis also has a water receiving tray. The air duct section 11 faces the impeller 6, and the lower middle part of the air duct section 11 is covered by an antibacterial and anti-mildew sheet 2.

[0071] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0074] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An antibacterial and antifungal sheet, characterized in that, The shape of the antibacterial and anti-mildew sheet is adapted to the shape of at least a portion of the inner wall surface of the air duct, so that the antibacterial and anti-mildew sheet can be installed on the inner wall surface of the air duct and cover at least a portion of the inner wall surface of the air duct. The antibacterial and anti-mildew sheet includes: a sheet-shaped substrate and an antibacterial and anti-mildew layer disposed on the substrate, wherein the antibacterial and anti-mildew layer is located on the surface of the substrate facing away from the inner wall of the air duct.

2. The antimicrobial mildew-proof sheet according to claim 1, wherein The substrate is a metal substrate; the metal substrate is a stainless steel substrate or an aluminum alloy substrate.

3. The antimicrobial mildew-proof sheet according to claim 1 or 2, characterized by The antibacterial and antifungal layer is a polytetrafluoroethylene coating with added antibacterial and antifungal additives; or The antibacterial and antifungal layer is an organic paint coating.

4. An air duct structure characterized by comprising: include: Air duct components that enclose at least a portion of the air outlet duct; and The antibacterial and antifungal sheet as described in any one of claims 1 to 3 is installed on the inner wall surface of the air duct and covers at least a portion of the inner wall surface of the air duct.

5. The air duct structure according to claim 4, wherein The air duct component includes an air duct section and a chassis section. The air duct section encloses a portion of the air duct, and the chassis section is connected to the bottom of the air duct section and is bent relative to the air duct section. The antibacterial and anti-mildew sheet is installed on the inner wall of the air duct section and is connected to the air duct section and the chassis section.

6. The air duct structure according to claim 5, wherein The antibacterial and antifungal sheet is snapped into the air duct section.

7. The air duct structure according to claim 6, wherein The antibacterial and anti-mildew sheet is provided with a first locking hole, the air duct is provided with a second locking hole, and the air duct structure also includes a buckle, which passes through the first locking hole and the second locking hole, so that the antibacterial and anti-mildew sheet is locked onto the air duct.

8. The air duct structure according to claim 7, wherein The buckle includes a cap and at least one hook provided on the cap. The hook includes a connecting portion and a hook portion connected to the connecting portion. The cap covers the first buckle hole, the connecting portion passes through the first buckle hole and the second buckle hole, and the hook portion hooks onto the outer wall surface of the air duct portion to prevent the buckle from disengaging from the air duct portion.

9. The air duct structure according to claim 5, wherein The antibacterial and antifungal sheet is adhered to the air duct section.

10. A duct structure according to any one of claims 5 to 9, wherein The chassis portion is provided with a fastener at one end near the air duct portion, and the antibacterial and anti-mildew sheet is sandwiched between the fastener and the air duct portion at the end near the chassis portion; or The chassis portion is provided with a rivet post at one end near the air duct portion, and the antibacterial and anti-mildew sheet is provided with a rivet hole at one end near the chassis portion. The rivet post passes through the rivet hole, and the head of the rivet post can be deformed to fasten to the antibacterial and anti-mildew sheet, so that the antibacterial and anti-mildew sheet is riveted to the chassis portion.

11. An air conditioner, characterized in that, Includes the air duct structure as described in any one of claims 4 to 10.

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