Deodorization module and indoor unit

Abstract

The utility model provides a kind of deodorization module and indoor unit, deodorization module is installed in indoor unit, and deodorization module includes: ozone generator and flat plate catalyst structure, ozone generator is set in the air inlet of indoor unit;Flat plate catalyst structure is set in the airflow downstream of ozone generator, and flat plate catalyst structure surface is equipped with ozone decomposition layer, and flat plate catalyst structure is parallel with air inlet airflow direction;Wherein, when indoor unit operates, airflow carries the ozone released by ozone generator and flows through flat plate catalyst structure surface, and ozone is generated OH free radical by ozone decomposition layer effect, and reacts with odor component in airflow, to realize deodorization.The utility model solves the problem that ozone and catalyst surface contact insufficiently in the existing structure, and the adsorption effect is poor, so as to cause the problem of insufficient OH free radical generation.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and more specifically, to a deodorization module and an indoor unit. Background Technology

[0002] Indoor spaces often contain odors from building materials and furniture, such as formaldehyde from adhesives and paints, tobacco smells, and odors from cooking spices. These odors can irritate the senses and cause discomfort and related complaints. Currently, these issues are mostly addressed through air purifiers and air conditioners with air purification functions. Odor removal methods include using high-performance filters and activated carbon to adsorb odor components, and using catalysts and ozone to decompose odor components into odorless ones. Decomposition-based deodorization is gaining attention because it can fundamentally solve the problem. OH radicals, with their strong oxidizing power, can react with various organic odor compounds and are highly effective in decomposing odor components. However, due to their rapid reaction speed and short lifespan (only 0.5-1 oz in clean, odorless air), they are not ideal for decomposing odor components. (It is deactivated within seconds) and cannot be released into the room for deodorization. It can only function within the deodorization module. In the method of generating OH free radicals by ozone, the method of using ozone decomposition catalysts such as manganese dioxide has the following problems: the ability to generate OH free radicals depends on the amount of catalyst attached and the reaction mainly takes place on the catalyst surface. If ozone does not come into sufficient contact with and be adsorbed on the catalyst surface, it is difficult to generate a large number of OH free radicals. Moreover, the generated OH free radicals can only react with odor molecules on and near the catalyst surface. The existing structure cannot efficiently guide odor molecules to the vicinity of the free radical generation site, which ultimately leads to insufficient contact efficiency between ozone and catalyst and limited deodorization performance. Utility Model Content

[0003] The problem solved by this invention is that in the existing structure, the ozone does not have sufficient contact with the catalyst surface and the adsorption effect is poor, resulting in insufficient generation of OH free radicals.

[0004] To address the aforementioned problems, this utility model provides a deodorization module installed in the indoor unit. The deodorization module includes an ozone generator and a flat-plate catalyst structure. The ozone generator is positioned at the air inlet of the indoor unit; the flat-plate catalyst structure is positioned downstream of the airflow from the ozone generator, and its surface is provided with an ozone decomposition layer. The flat-plate catalyst structure is parallel to the direction of the incoming airflow. During operation of the indoor unit, the airflow carrying ozone released by the ozone generator flows across the surface of the flat-plate catalyst structure. The ozone, through the ozone decomposition layer, generates OH free radicals, which react with odor components in the airflow to achieve deodorization.

[0005] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: By placing the ozone generator at the air inlet and the flat-plate catalyst structure downstream of the ozone generator, with the surface of the flat-plate catalyst structure parallel to the airflow, ozone is ensured to fully flow across the surface of the flat-plate catalyst with the airflow. Under the action of the ozone decomposition layer, OH free radicals are efficiently generated, prolonging the reaction time between OH free radicals and odor components, thus significantly improving the deodorization effect. The parallel arrangement of the flat-plate catalyst structure with the airflow reduces airflow resistance in the duct, avoids airflow loss due to structural design, ensures that the normal heat exchange function of the indoor unit is not affected, and makes the contact between ozone and the catalyst more stable, resulting in a more uniform deodorization effect.

[0006] Furthermore, the flat plate catalyst structure is provided with reinforcing ribs, which are arranged on the surface of the flat plate catalyst structure along the direction parallel to the airflow direction, and airflow channels are formed between adjacent reinforcing ribs.

[0007] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: The reinforcing ribs can disturb the laminar airflow, shortening the distance ozone needs to diffuse from the mainstream airflow area to the catalyst surface. This allows ozone to be more efficiently adsorbed and decomposed by the ozone decomposition layer, directly increasing the generation efficiency and quantity of OH free radicals. The reinforcing ribs are arranged parallel to the airflow direction, and their parameters are adapted to the duct velocity boundary layer. This optimizes material transport through the raised structure without excessively obstructing airflow, ensuring deodorization efficiency while maintaining stable airflow in the duct and ensuring the normal operation of the indoor unit. The airflow channels formed by adjacent reinforcing ribs guide the airflow to evenly cover the flat catalyst surface. Combined with specific parameter design, this results in a more uniform distribution of ozone on the catalyst surface, more comprehensive generation of OH free radicals, and thus eliminates deodorization dead zones, achieving stable deodorization throughout the entire area.

[0008] Furthermore, the flat catalyst structure is provided with a flange structure, which is set on the surface of the flat catalyst structure and forms an angle with the flat catalyst structure.

[0009] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: The angle between the flanged structure and the flat catalyst actively induces local eddies in the transition zone from laminar to turbulent flow, accelerating the airflow state transition. The directional disturbance of the flanged structure ensures rapid and uniform diffusion of ozone in the airflow, guaranteeing stable ozone contact across all areas of the catalyst surface and preventing localized deodorization attenuation. The directional airflow channel formed by the flanged structure reduces the deposition of dust and impurities on the catalyst surface. The airflow also creates a slight purging effect on the catalyst surface, reducing pollutant adhesion and indirectly extending the effective working time of the ozone decomposition layer, thus reducing user maintenance frequency and costs.

[0010] Furthermore, the ozone generator includes an ozone release port facing the flat catalytic structure, ensuring that ozone flows directly onto the surface of the flat catalytic structure with the airflow.

[0011] Compared to existing technologies, the technical effects achieved by adopting this solution are as follows: By directly oriented the release port toward the flat catalyst structure, ozone release is directed by the airflow to the catalyst surface, significantly shortening the ozone path from release to contact with the catalyst, reducing losses during transmission, and ensuring more ozone participates in the OH radical generation reaction. The directional design of the release port allows for a more concentrated ozone concentration on the catalyst surface, resulting in the generation of a higher concentration of OH radicals under the action of the ozone decomposition layer. The collision probability of high-concentration OH radicals with odor components in the airflow is significantly increased, directly improving the deodorization reaction rate per unit time, making it particularly suitable for rapid purification in environments with high concentrations of odor.

[0012] Furthermore, the indoor unit includes a middle frame, with the middle frame close to the wall; the ozone decomposition layer covers the flat catalytic structure facing the main airflow path of the air duct.

[0013] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: This solution only sets the ozone decomposition layer on the side facing the main air path of the air duct. While ensuring the effective operation of the core reaction area, it reduces the amount of ozone decomposition layer material used, directly reducing the module manufacturing cost, and does not affect the core deodorization function.

[0014] Furthermore, the air inlet includes a first air inlet, an ozone generator is located on the side of the middle frame near the first air inlet, and a flat catalytic structure is located on the side of the middle frame near the wall.

[0015] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: The first air inlet is the main air intake channel for the indoor unit. The ozone generator is located on the side of the middle frame near the first air inlet, allowing ozone to be drawn into the mainstream airflow as soon as it enters the indoor unit. As the airflow flows towards the flat catalyst structure on the side of the middle frame closer to the wall, the ozone can be fully mixed with the odor-containing air, avoiding the problem of uneven reaction on the catalyst surface caused by local ozone accumulation. This ensures a more balanced generation of OH free radicals in all areas of the catalyst surface, resulting in a more stable deodorization effect.

[0016] Furthermore, the indoor unit includes a front panel and an air outlet; the air inlet also includes a second air inlet, which is located on the side of the front panel near the air outlet; the ozone generator is located on the inner side of the front panel near the second air inlet, and the flat catalytic structure is located on the inner side of the front panel, downstream of the ozone generator.

[0017] Compared to existing technologies, the technical effects achieved by adopting this solution are as follows: The second air inlet, located on the front panel near the air outlet, is a crucial channel for the indoor unit to directly draw in air from the vicinity of the user. The ozone generator, situated near the second air inlet, injects ozone as soon as the airflow enters. This ozone is then decomposed by the downstream flat-plate catalyst structure to generate OH radicals, completing the deodorization reaction directly within the front-end air duct. This significantly improves the odor removal rate in the area near the user, greatly optimizing the user's experience. This solution integrates the ozone generator and the flat-plate catalyst structure within the inner side of the front panel, utilizing its planar space to achieve a flat layout, avoiding spatial conflicts with core components such as the cross-flow fan and heat exchanger. Furthermore, the two are arranged sequentially along the airflow direction, requiring no additional space in the air duct's depth, thus not affecting the indoor unit's aesthetics or installation compatibility.

[0018] Furthermore, the ozone decomposition layer covers both sides of the flat panel catalyst structure, which is fixed to the indoor unit by a bracket. Both sides of the flat panel catalyst structure form airflow channels that are connected to the air duct, allowing airflow to pass through both sides of the flat panel catalyst structure simultaneously.

[0019] Compared to existing technologies, the technical effects achieved by adopting this solution are as follows: By covering both sides with an ozone decomposition layer, the effective reaction area of ​​the catalyst is significantly increased compared to a single-sided design. This allows for the simultaneous processing of ozone and the generation of OH free radicals from odor components in the airflow from both sides, doubling the amount generated and directly improving the deodorization capacity per unit time. This makes it suitable for large spaces or high-odor-load scenarios. The fixed support prevents direct contact between the flat catalyst and the surrounding structure, forming independent and symmetrical airflow channels on both sides. This ensures that the airflow flows evenly across both sides, maintaining consistent ozone contact and reaction intensity on both sides. This avoids the attenuation of the decomposition layer activity caused by excessive reaction on one side, while also eliminating localized deodorization blind spots caused by uneven contact.

[0020] To solve the above problems, this utility model provides an indoor unit, including the deodorization module provided by the above technical solution. The indoor unit includes: a middle frame, a front panel, a heat exchanger, a cross-flow fan, an air inlet, and an air outlet; the cross-flow fan drives the airflow through the air inlet, deodorizes it through the deodorization module, and the deodorized airflow enters the heat exchanger and is discharged from the air outlet.

[0021] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The solution uses a path design of "cross-flow fan driving airflow through air inlet - deodorization module - heat exchanger", combined with the optimized structure of the deodorization module, so that the airflow can flow smoothly to the heat exchanger while completing deodorization, realizing the synergy of deodorization and heat exchange functions, and ensuring that the core performance of the air conditioner is not damaged.

[0022] In summary, the above-mentioned technical solutions of this application can have one or more of the following advantages or beneficial effects: i) Through the precise upstream and downstream layout of the ozone generator and the flat plate catalyst, and the directional guidance design of the ozone release port, it is ensured that the ozone fully contacts the catalyst surface with the airflow, reducing ineffective losses; combined with the flexible configuration of the double-sided or single-sided ozone decomposition layer of the flat plate catalyst, the reaction area is effectively expanded, enabling ozone to be efficiently converted into OH free radicals, which can fully react with odor components in different scenarios, adapting to various needs such as daily odors and sudden odors, and avoiding the problem of incomplete local deodorization. ii) The installation layout of the deodorization module makes full use of the redundant space such as the edge of the indoor unit's middle frame and the inner side of the front panel, avoiding the occupation of the core area of ​​the air duct; the parallel posture of the flat plate catalyst and the air intake airflow, and the independent airflow channel formed by the bracket fixation, can reduce the obstruction of airflow, ensuring that the airflow driven by the cross-flow fan flows smoothly through the heat exchanger without affecting the core functions of the indoor unit's cooling and heating, while adapting to the structural design trend of thin indoor units, taking into account both functional and aesthetic requirements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a deodorization module and indoor unit in an embodiment of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the ozone generator and flat plate catalyst structure in the embodiments of this utility model; Figure 3 This is a schematic diagram of the concentration boundary layer formed on the surface of the flat catalyst structure in this embodiment of the invention. Figure 1 ; Figure 4 This is a schematic diagram of the concentration boundary layer formed on the surface of the flat catalyst structure in this embodiment of the invention. Figure 2 ; Figure 5 This is a schematic diagram of the concentration boundary layer formed on the surface of the flat catalyst structure in this embodiment of the invention. Figure 3 ; Figure 6 This is a schematic diagram of the structure of a deodorization module and indoor unit in an embodiment of this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the structure of a deodorization module and indoor unit in an embodiment of this utility model. Figure 3 .

[0024] Explanation of reference numerals in the attached figures: 1-Deodorization module; 11-Ozone generator; 12-Flat plate catalyst structure; 121-Reinforcing rib; 122-Flanged structure; 123-Adhesive bottom layer; 124-Velocity boundary layer; 125-Concentration boundary layer; 2-Middle frame; 3-Front panel; 4-Heat exchanger; 5-Cross-flow fan; 6-First air inlet; 7-Second air inlet; 8-Air outlet. Detailed Implementation

[0025] The purpose of this invention is to provide a deodorization module and indoor unit that achieves sufficient contact between ozone and the catalyst surface in the structure, resulting in a strong adsorption effect, thereby increasing the amount of OH free radicals generated and improving the indoor deodorization capacity.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] See Figures 1 to 7 This utility model provides a deodorization module installed in an indoor unit. The deodorization module includes an ozone generator 11 and a flat plate catalyst structure 12. The ozone generator 11 is located at the air inlet of the indoor unit. The flat plate catalyst structure 12 is located downstream of the airflow from the ozone generator 11. An ozone decomposition layer is provided on the surface of the flat plate catalyst structure 12, and the flat plate catalyst structure 12 is parallel to the direction of the airflow. When the indoor unit is running, the airflow carrying ozone released by the ozone generator 11 flows through the surface of the flat plate catalyst structure 12. The ozone is converted into OH free radicals by the ozone decomposition layer, which react with the odor components in the airflow to achieve deodorization.

[0028] Specifically, the ozone generator 11 is fixed to the air inlet of the indoor unit by clips, located in the upstream area where the airflow just enters the duct. The main body of the flat plate catalyst structure 12 is a rectangular aluminum alloy substrate, and the surface of the substrate is covered with an ozone decomposition layer by a spraying process. The flat plate catalyst structure 12 is fixed to the downstream area of ​​the ozone generator 11 by screws. The two sides of the flat plate catalyst structure 12 extend in the same direction as the airflow direction in the duct, ensuring that the airflow flows smoothly along the surface of the flat plate catalyst structure 12. When the indoor unit starts, the cross-flow fan 5 operates, driving indoor air to be drawn into the air duct from the air inlet. The airflow first flows through the ozone generator 11, which is simultaneously powered on to release ozone, forming a mixed airflow containing ozone. The mixed airflow flows along the ozone generator 11 to the flat plate catalyst structure 12 located in the downstream area. Because the flat plate catalyst structure 12 is parallel to the airflow direction, the airflow smoothly covers the surface of the flat plate catalyst structure 12. The ozone comes into contact with and decomposes the ozone decomposition layer, generating OH free radicals. The OH free radicals react with the odor components in the airflow on and near the surface of the flat plate catalyst structure 12, achieving deodorization. The clean airflow that has completed deodorization continues to flow along the air duct through the heat exchanger 4, and finally is discharged from the indoor unit from the air outlet 8, realizing the integration of air conditioning and deodorization.

[0029] See Figure 3The arrow indicates the direction of airflow. The flat catalyst structure 12 is provided with reinforcing ribs 121, which are arranged on the surface of the flat catalyst structure 12 parallel to the airflow direction, and airflow channels are formed between adjacent reinforcing ribs 121. Specifically, taking the velocity boundary layer 124 in the air duct of the indoor unit as a reference, the ratio of the height of the reinforcing rib 121 to the velocity boundary layer 124 in the air duct is 0.3 to 0.5, and the ratio of the spacing of the reinforcing ribs 121 to the velocity boundary layer 124 in the air duct is 5 to 10.

[0030] Specifically, the reinforcing ribs 121 are integrally formed with the flat plate catalyst structure 12 and arranged along the airflow direction, covering the surface of the flat plate catalyst structure 12. The interval between adjacent reinforcing ribs 121 is P. Based on the measured velocity boundary layer (δv) 124 in the indoor unit air duct, the ratio of the height h of the reinforcing ribs 121 to δc is 0.3 to 0.5, and the ratio of the interval p to δv is 5 to 10. The reinforcing ribs 121 disturb the laminar airflow, breaking the stable state of the thick concentration boundary layer 125, allowing ozone to diffuse rapidly from the mainstream airflow area to the surface of the flat plate catalyst structure 12, reducing ozone retention and loss in the boundary layer, and directly improving the OH radical generation efficiency.

[0031] See Figure 4 and Figure 5 The arrow indicates the direction of airflow. The flat plate catalyst structure 12 is provided with a flange structure 122, which is disposed on the surface of the flat plate catalyst structure 12 and forms an angle θ of 10 to 25° with the flat plate catalyst structure 12. Among them, taking the velocity boundary layer 124 in the air duct of the indoor unit as a reference, the ratio of the height of the flange structure 122 to the velocity boundary layer 124 in the air duct is 0.5 to 0.7, and the ratio of the spacing of the flange structure 122 to the velocity boundary layer 124 in the air duct is 3 to 8.

[0032] Specifically, the surface of the flat catalyst structure 12 has a viscous underlayer 123, which is the main obstacle to ozone contact with the catalyst. The flanged structure 122 is a sheet-like structure that bends upward on the surface of the flat catalyst structure 12, forming an angle θ with the flat catalyst structure 12. The angle θ is 10-25°, ensuring that the impacting airflow will not cause a surge in wind resistance due to an excessively large angle, nor will it fail to effectively impact the viscous underlayer 123 due to an excessively small angle, thus achieving a balance between efficient penetration and low wind resistance. The ratio of the height h of the flanged structure to the velocity boundary (δv) in the air duct is 0.5-0.7. This parameter ensures that the protrusion height of the flanged structure 122 is sufficient to "capture" part of the airflow in the mainstream airflow and guide it to impact the viscous underlayer 123, breaking the stagnant airflow state of the viscous underlayer 123, "delivering" ozone to the catalyst surface, and significantly improving the contact efficiency between ozone and the decomposition layer. The ratio of the spacing p of the flange structure 122 to the velocity boundary layer (δv) 124 in the air duct is 3 to 8. The vortex region formed between adjacent flange structures 122 after the airflow is blocked by the flange structure 122 can prevent local ozone accumulation, thereby making the ozone contact amount distribution on the surface of the flat plate catalyst structure 12 more uniform.

[0033] See Figure 1 and Figure 2 The ozone generator 11 includes an ozone release port facing the flat plate catalyst structure 12, ensuring that ozone flows directly onto the surface of the flat plate catalyst structure 12 with the airflow.

[0034] Specifically, the ozone generator 11 has an ozone release port on the side facing the flat plate catalyst structure 12. The opening direction of the ozone release port is consistent with the airflow direction of the air inlet. After the ozone is released from the release port, it reaches the surface of the flat plate catalyst structure 12 directly under the influence of the airflow, preventing the ozone from diffusing to the side wall of the air duct, increasing the ozone concentration on the surface of the flat plate catalyst structure 12, and simultaneously increasing the amount of OH free radicals generated, thereby improving the odor removal rate within the same time.

[0035] See Figure 1 and Figure 6 The ozone decomposition layer covers the flat plate catalyst structure 12 on one side facing the main air path of the air duct.

[0036] Specifically, the flat-plate catalyst structure 12 is fixed inside the indoor unit. The side of the flat-plate catalyst structure 12 facing the airflow of the air duct is covered with an ozone decomposition layer, while the side facing away from the airflow of the air duct is not coated.

[0037] See Figure 1 and Figure 6 The indoor unit includes a middle frame 2, which is located on the side closest to the wall; the air inlet includes a first air inlet 6, an ozone generator 11 is located on the side of the middle frame 2 closest to the first air inlet 6, and a flat catalytic structure 12 is located on the side of the middle frame 2 closest to the wall.

[0038] Specifically, the first air inlet 6 is fixed at the top of the middle frame 2, the ozone generator 11 is installed on the top of the middle frame 2 near the wall, and the flat catalyst structure 12 is set at the rear of the middle frame 2 near the wall. After the airflow containing odor is drawn in from the first air inlet 6, it first passes through the ozone generator 11 to mix with ozone, and then flows along the inner side of the middle frame 2 to the flat catalyst structure 12 at the rear of the middle frame 2. This ensures that the airflow containing odor and ozone passes through the flat catalyst structure 12, so that the ozone comes into contact with the ozone decomposition layer and decomposes to generate OH free radicals. The OH free radicals react with the odor to achieve deodorization.

[0039] See Figure 6 The indoor unit includes a front panel 3 and an air outlet 8; the air inlet also includes a second air inlet 7, which is located on the side of the front panel 3 near the air outlet 8; the ozone generator 11 is located on the inner side of the front panel 3 near the second air inlet 7; and the flat catalytic structure 12 is located on the inner side of the front panel 3, downstream of the ozone generator 11.

[0040] Specifically, the second air inlet 7 is located at the end of the front panel 3, the ozone generator 11 is installed near the second air inlet 7, and the flat catalyst structure 12 is fixed to the inside of the front panel 3, located downstream of the ozone generator 11. After the airflow containing odor is drawn in through the second air inlet 7, it first passes through the ozone generator 11 to mix with ozone, and then flows to the flat catalyst structure 12 located downstream of the ozone generator 11. The ozone comes into contact with and decomposes the ozone decomposition layer, generating OH radicals. These OH radicals then react with the odor to achieve deodorization.

[0041] See Figure 7 The ozone decomposition layer covers both sides of the flat plate catalyst structure 12. The flat plate catalyst structure 12 is fixed to the indoor unit by a bracket. Both sides of the flat plate catalyst structure 12 form airflow channels that are connected to the air duct, so that airflow can flow through both sides of the flat plate catalyst structure 12 at the same time.

[0042] Specifically, in Figure 1 Based on the flat plate catalyst, an ozone decomposition layer is attached to its front and back surfaces. During installation, it does not directly contact the middle frame 2, maintaining a certain distance. This allows the airflow from the first air inlet 6 to simultaneously flow through both the front and back surfaces of the flat plate catalyst (the left and right sides of the flat plate catalyst in the diagram). When designing the deodorization reaction spaces on both sides, it is necessary to ensure that the ozone generated by the ozone generator 11 can be fully decomposed into OH free radicals. Since the size of the deodorization space is determined by the velocity boundary layer 124 (the surface wind speed of the flat plate catalyst), if the wind speeds on both sides with the ozone decomposition layer attached are the same, the deodorization reaction spaces will be the same.

[0043] See Figure 1This utility model provides an indoor unit, including the deodorization module provided by the above technical solution. The indoor unit includes: a middle frame 2, a front panel 3, a heat exchanger 4, a cross-flow fan 5, an air inlet and an air outlet 8; the cross-flow fan 5 drives the airflow through the air inlet, deodorizes it through the deodorization module, and the deodorized airflow enters the heat exchanger 4 and is discharged from the air outlet 8.

[0044] Specifically, after the cross-flow fan 5 starts, the airflow containing odorous gases is drawn in through the air inlet and mixed with the ozone generated by the ozone generator 11. Through the flat plate catalyst structure 12, the ozone and the ozone decomposition layer come into contact and decompose, generating OH free radicals. These OH free radicals then react with the odorous gases through oxidation, achieving deodorization. The clean airflow continues to flow to the heat exchanger 4, and after cooling / heating, it is discharged from the air outlet 8, achieving seamless synergy between deodorization and heat exchange, ensuring that core performance is not affected. Although this utility model is disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this utility model; therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.

Claims

1. A deodorizing module, characterized in that, The deodorization module is installed in the indoor unit, and the deodorization module includes: An ozone generator (11) is provided at the air inlet of the indoor unit; A flat plate catalyst structure (12) is disposed downstream of the airflow of the ozone generator (11). The surface of the flat plate catalyst structure (12) is provided with an ozone decomposition layer, and the flat plate catalyst structure (12) is parallel to the airflow direction. When the indoor unit is running, the airflow carries the ozone released by the ozone generator (11) and flows through the surface of the flat catalyst structure (12). The ozone generates free radicals through the ozone decomposition layer and reacts with the odor components in the airflow to achieve deodorization.

2. The deodorization module according to claim 1, characterized in that, The flat catalyst structure (12) is provided with reinforcing ribs (121). The reinforcing ribs (121) are disposed on the surface of the flat catalyst structure (12) and arranged in a direction parallel to the airflow direction. An airflow channel is formed between adjacent reinforcing ribs (121).

3. The deodorization module according to claim 1, characterized in that, The flat catalyst structure (12) is provided with a flange structure (122), which is disposed on the surface of the flat catalyst structure (12) and forms an angle with the flat catalyst structure (12).

4. The deodorization module according to claim 1, characterized in that, The ozone generator (11) includes an ozone release port facing the flat plate catalyst structure (12), ensuring that ozone flows directly to the surface of the flat plate catalyst structure (12) with the airflow.

5. The deodorizing module according to any one of claims 1 to 4, characterized in that, The ozone decomposition layer covers the side of the flat catalyst structure (12) facing the main air path of the air duct.

6. The deodorization module according to claim 5, characterized in that, The indoor unit includes a middle frame (2), which is fixed to one side of the wall; the air inlet includes a first air inlet (6), the ozone generator (11) is disposed on the side of the middle frame (2) near the first air inlet (6), and the flat catalyst structure (12) is disposed on the side of the middle frame (2) near the wall.

7. The deodorization module according to claim 5, characterized in that, The indoor unit includes a front panel (3) and an air outlet (8); the air inlet also includes a second air inlet (7), which is located on the side of the front panel (3) near the air outlet (8); the ozone generator (11) is located on the inner side of the front panel (3) near the second air inlet (7), and the flat catalyst structure (12) is located on the inner side of the front panel (3) downstream of the ozone generator (11).

8. The deodorizing module according to any one of claims 1 to 4, characterized in that, The ozone decomposition layer covers both sides of the flat plate catalyst structure (12), which is fixed to the indoor unit by a bracket. Both sides of the flat plate catalyst structure (12) form airflow channels that communicate with the air duct, so that the airflow can flow through both sides of the flat plate catalyst structure (12) at the same time.

9. An indoor unit, characterized in that, The indoor unit includes the deodorization module according to any one of claims 1 to 8, comprising: The middle frame (2), front panel (3), heat exchanger (4), cross-flow fan (5), air inlet and air outlet (8); the cross-flow fan (5) drives the airflow through the air inlet, deodorizes it through the deodorization module, and the deodorized airflow enters the heat exchanger (4) and is discharged from the air outlet (8).

Images