Air diffuser module and air conditioner

Abstract

The utility model provides a kind of air diffuser module and air conditioner, it is related to air conditioner technical field, to solve the problem that existing air diffuser module cannot consider big air supply flow and air diffuser effect and design.The air diffuser module includes multiple three-dimensional netted layers arranged along the first direction, in the plane perpendicular to the first direction, three-dimensional netted layer is at least along one direction continuous bending and forms sawtooth structure;Sawtooth structure includes two air outlet surfaces arranged at an angle in each sawtooth part, the area between two air outlet surfaces is used to form three-dimensional air outlet hole.The utility model can guarantee the scattering effect of air flow while ensuring that air conditioner indoor unit has larger air supply in zero wind mode.

Description

Technical Field

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

[0002] Typically, an air conditioner consists of an indoor unit and an outdoor unit. To improve user comfort, a diffuser module is often installed at the air outlet of the indoor unit. This diffuser module disperses the airflow, reducing or eliminating the direct draft generated by the indoor unit during cooling or heating, thus avoiding discomfort caused by direct airflow.

[0003] Currently, air distribution modules are formed by creating air distribution holes on a flat surface. During use, the air conditioning air is directed forward through these holes to achieve a dispersion effect. However, to ensure effective air dispersion, the air distribution holes are often made relatively small, limiting the airflow. Conversely, to increase airflow, the holes need to be made larger, which weakens the dispersion effect. Furthermore, with larger openings, the internal structure of the indoor unit is directly exposed, resulting in a poor overall aesthetic appearance. Utility Model Content

[0004] The first objective of this utility model is to provide a ventilation module to solve the technical problem that existing ventilation modules cannot simultaneously achieve both large air supply flow and ventilation effect.

[0005] The air distribution module provided by this utility model includes multiple three-dimensional mesh layers arranged along a first direction. In a plane perpendicular to the first direction, the three-dimensional mesh layers are continuously bent in at least one direction to form a sawtooth structure. Each sawtooth structure includes two air outlet surfaces set at an angle at each sawtooth portion, and the area between the two air outlet surfaces is used to form a three-dimensional air outlet hole.

[0006] Taking the use of this air diffusion module in an indoor air conditioning unit as an example, the air diffusion module can be installed at the air outlet of the indoor air conditioning unit. When the indoor air conditioning unit needs to supply air in zero-wind-feel mode, the air conditioning air blown out of the air outlet will flow towards the air diffusion module. When the air conditioning air flows to the uppermost three-dimensional mesh layer, because the three-dimensional mesh layer is a sawtooth structure that is continuously bent in at least one direction, and two air outlet surfaces are formed at an angle at the sawtooth parts, the air conditioning air will be delivered out from the air outlet surfaces during the flow.

[0007] During the aforementioned air outlet process, on the one hand, the airflow can be dispersed by the edges of the three-dimensional air outlet holes formed between the two air outlet surfaces, and as the airflow passes through each three-dimensional mesh layer, it can be dispersed multiple times to achieve a dispersion effect. At the same time, since the airflow is delivered through two air outlet surfaces set at an angle, its path will deflect relative to the original first direction after passing through the air outlet surfaces. The collision of the airflows after the path deflection can further disperse the airflow to achieve a further dispersion effect. On the other hand, the three-dimensional air outlet holes formed between the two air outlet surfaces can increase the flow area compared to the planar mesh structure, thereby increasing the air delivery volume.

[0008] This method of dispersing airflow by utilizing the collision of airflow paths after path deflection ensures that the dispersion effect is not affected by the size of the planar air outlet. Therefore, the area of ​​the planar air outlet can be increased to improve airflow volume. Thus, this air dispersion module ensures a large air volume for the indoor unit in zero-wind mode while also guaranteeing effective airflow dispersion. Furthermore, the air dispersion module maintains visual consistency, avoiding the abruptness of multiple holes and obscuring the internal structure of the indoor unit, making it virtually invisible to the user.

[0009] Furthermore, in two adjacent three-dimensional mesh layers, the crests of the sawtooth portion of one layer are closely connected to the troughs of the sawtooth portion of the other layer, and several inclined air outlet channels are formed between two adjacent three-dimensional mesh layers. During the airflow process through the air distribution module, it can be delivered using the inclined air outlet channels, and by changing the airflow direction, direct airflow to the user is avoided. Moreover, different air outlet channels intersect, causing the air conditioning air flowing in the first direction to collide after passing through different air outlet channels, thus achieving a further dispersion effect.

[0010] Furthermore, the three-dimensional mesh layer includes a plurality of air-diffusing ribs, which are interconnected and arranged to form the serrated structure. This form, which utilizes multiple interconnected air-diffusing ribs to form a serrated structure, can, on the one hand, increase the disturbance of airflow by utilizing the air-diffusing ribs to enhance the dispersion effect; on the other hand, it makes the three-dimensional mesh layer a frame structure, thereby helping to reduce the weight of the three-dimensional mesh layer, and thus helping to reduce the overall weight of the air-diffusing module.

[0011] Furthermore, the air outlet surface is provided with a planar air outlet hole, which is a quadrilateral hole. By setting the planar air outlet hole as a quadrilateral hole, the planar air outlet hole can have sufficient flow area, thereby making the air flow smoother and reducing airflow dead zones, thus improving the overall ventilation efficiency.

[0012] Furthermore, the ventilation module is a 3D (Three-Dimensional) printed structure. By manufacturing the ventilation module using 3D printing, not only can the manufacturing cycle of the ventilation module be shortened, but also the cost and time of mold manufacturing are saved because there is no need to manufacture molds.

[0013] Furthermore, the three-dimensional mesh layer is continuously bent in three directions to form the sawtooth structure, and the three-dimensional air outlet has three air outlet surfaces. This design allows the airflow passing through the three-dimensional mesh layer to be delivered through three air outlet surfaces, which not only enhances ventilation efficiency and avoids localized airflow obstruction, but also allows the airflow, after being delivered through one three-dimensional air outlet, to form three airflows in different directions, colliding with the airflow from other three-dimensional air outlets in three directions, thus facilitating airflow dispersion.

[0014] Furthermore, in the three air outlet surfaces of the three-dimensional air outlet, each pair is perpendicular to the others. This arrangement allows the three-dimensional mesh layer to form a honeycomb-like structure. With multiple three-dimensional mesh layers arranged closely together, the air distribution module can be viewed as a tightly stacked assembly of several cubes with only edges. This design not only ensures effective airflow dispersion but also improves the structural strength and compressive strength of the air distribution module, thereby enhancing its resistance to deformation.

[0015] Furthermore, the three-dimensional mesh layer is continuously bent in two directions to form the sawtooth structure, and the three-dimensional air outlet has four air outlet surfaces. This design allows the airflow passing through the three-dimensional mesh layer to be delivered through four air outlet surfaces, which not only further enhances ventilation efficiency and avoids localized airflow obstruction, but also allows the airflow, after being delivered through one three-dimensional air outlet, to form four airflows in different directions, colliding with the airflows from other three-dimensional air outlets in four directions to enhance the airflow dispersion effect.

[0016] Furthermore, the three-dimensional mesh layer is continuously bent in one direction to form the serrated structure, and the three-dimensional air outlet has two air outlet surfaces. This configuration of the air distribution module not only ensures the dispersion effect of airflow, but also has a simple structure, making it easier to produce and manufacture.

[0017] The second objective of this utility model is to provide an air conditioner that solves the technical problem that existing air dissipation modules cannot simultaneously achieve both large air supply flow and effective air dissipation.

[0018] The air conditioner provided by this utility model includes an indoor unit and an outdoor unit connected to the indoor unit via a refrigerant pipeline. The indoor unit includes a body and the aforementioned air dissipation module. The air dissipation module is installed on the body, wherein the body has an air outlet, and the air dissipation module is opposite to the air outlet.

[0019] During operation, the air conditioning unit's indoor unit sends out air through the vents. The air is then dispersed by the air diffusion module, reducing or eliminating direct drafts during cooling or heating, thus avoiding discomfort caused by direct airflow. By incorporating this air diffusion module, the air conditioner gains all the advantages of such a module, which will not be elaborated upon further here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the indoor unit of the air conditioner provided in an embodiment of the present utility model;

[0022] Figure 2 A physical image of the air dissipation module provided in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the air dissipation module provided in Embodiment 1 of this utility model;

[0024] Figure 4 A partial structural schematic diagram of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 1 of this utility model;

[0025] Figure 5 A partial structural diagram of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 1 of this utility model under a three-dimensional model schematic;

[0026] Figure 6 This is a partial front view of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 1 of this utility model;

[0027] Figure 7 This is a partial structural side view of the air dissipation module provided in Embodiment 1 of this utility model;

[0028] Figure 8 A physical image of the air dissipation module provided in Embodiment 2 of this utility model;

[0029] Figure 9 A schematic diagram of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 2 of this utility model;

[0030] Figure 10 for Figure 9 Enlarged view of the local structure at point A;

[0031] Figure 11 This is a partial front view of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 2 of this utility model;

[0032] Figure 12 A partial structural schematic diagram of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 2 of this utility model;

[0033] Figure 13 This is a partial structural diagram of the three-dimensional mesh layer of the air dissipation module provided in Embodiment 3 of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 010 - Airflow dissipation module; 020 - Main unit;

[0036] 100 - Three-dimensional mesh layer; 110 - Serrated section; 120 - Planar air outlet; 130 - Three-dimensional air outlet; 140 - Air outlet channel; 150 - Air diffuser ribs. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0038] This embodiment provides an air conditioner, including an indoor unit and an outdoor unit connected to the indoor unit via refrigerant piping.

[0039] Figure 1 This is a schematic diagram of the structure of the indoor unit of the air conditioner provided in this embodiment. Figure 1 As shown, the indoor unit of the air conditioner includes a body 020 and an air dissipation module 010. The air dissipation module 010 is installed on the body 020. The body 020 has an air outlet, and the air dissipation module 010 is opposite to the air outlet.

[0040] During operation, the air conditioning indoor unit sends out the air through the air outlet opened on the unit body 020. Under the action of the air dispersing module 010, the air is dispersed to reduce or eliminate the direct wind generated by the air conditioning indoor unit during the cooling or heating process, thereby avoiding discomfort caused by direct blowing.

[0041] In this embodiment, the accompanying drawings are only used as an example of a floor-standing air conditioner indoor unit. It can be understood that the air conditioner indoor unit can also be a wall-mounted air conditioner.

[0042] The following text will provide a detailed description of the specific structure of the air dispersing module 010 and the principle of airflow dispersion through three embodiments.

[0043] Example 1

[0044] Figure 2 This is a physical image of the air dissipation module 010 provided in this embodiment. Figure 3 This is a structural schematic diagram of the air dissipation module 010 provided in this embodiment. Figure 2 and Figure 3 As shown, the air dissipation module 010 provided in this embodiment includes multiple three-dimensional mesh layers 100 arranged along a first direction.

[0045] Figure 4 This is a partial structural diagram of the three-dimensional mesh layer 100 of the air dissipation module 010 provided in this embodiment; Figure 5 This is a partial structural diagram of the three-dimensional mesh layer 100 of the air dissipation module 010 provided in this embodiment under a three-dimensional model. Figure 6 This is a partial front view of the three-dimensional mesh layer 100 of the air dissipation module 010 provided in this embodiment. (See attached image.) Figures 4 to 6 As shown, in a plane perpendicular to the first direction, the three-dimensional mesh layer 100 is continuously bent in at least one direction to form a sawtooth structure; wherein, each sawtooth portion 110 of the sawtooth structure includes two air outlet surfaces arranged at an angle, and the area between the two air outlet surfaces is used to form a three-dimensional air outlet 130.

[0046] When the indoor unit of the air conditioner needs to supply air in zero-wind mode, the air conditioning air blown out through the air outlet will flow towards the air distribution module 010. When the air conditioning air flows to the uppermost three-dimensional mesh layer 100, since the three-dimensional mesh layer 100 is a sawtooth structure that is continuously bent in at least one direction, and two air outlet surfaces are formed at an angle at the sawtooth part 110, the air conditioning air will be sent out from the air outlet surface during the flow.

[0047] During the aforementioned air outlet process, on the one hand, the airflow can be dispersed by the edges of the three-dimensional air outlet 130 formed between the two air outlet surfaces, and as the airflow passes through each three-dimensional mesh layer 100, it can be dispersed multiple times to achieve a dispersion effect. At the same time, since the airflow is delivered through two air outlet surfaces set at an angle, its path will deflect relative to the original first direction after passing through the air outlet surfaces. The collision effect of each airflow after the path deflection can further disperse the airflow to achieve a further dispersion effect. On the other hand, the three-dimensional air outlet 130 formed between the two air outlet surfaces can increase the flow area compared to the planar mesh structure, thereby increasing the air delivery volume.

[0048] This method of dispersing airflow by utilizing the collision of airflows after path deflection ensures that the dispersion effect is not affected by the size of the planar air outlet 120. Therefore, the area of ​​the planar air outlet 120 can be increased to improve airflow volume. Thus, the design of this air dispersion module 010 ensures a large airflow volume for the indoor unit in zero-wind mode while also guaranteeing effective airflow dispersion. Furthermore, the air dispersion module 010 maintains visual consistency, avoiding the abruptness of multiple holes and obscuring the internal structure of the indoor unit, making it virtually invisible to the user.

[0049] It should be noted that in this embodiment, the "first direction" is the direction in which the airflow flows out through the air outlet of the body 020, that is, the direction from back to front of the indoor unit of the air conditioner, that is, the thickness direction of the air dissipation module 010.

[0050] Generally, the side of an indoor air conditioner unit that faces the room or the user's activity area is the front side of the unit; while the side of a floor-standing air conditioner unit that faces a corner or the wall is its rear side. Specifically, in this embodiment, the front-rear direction of the indoor air conditioner unit is as follows: Figure 1 The corresponding arrows in the diagram indicate this.

[0051] Please continue to refer to Figures 4 to 6 In this embodiment, the three-dimensional mesh layer 100 may include a plurality of air-diffusing ribs 150, which are cross-linked and arranged to form a serrated structure.

[0052] This method of using multiple air-dispersing ribs 150 to form a sawtooth structure can, on the one hand, increase the disturbance of airflow by using the air-dispersing ribs 150 to enhance the dispersing effect; on the other hand, it makes the three-dimensional mesh layer 100 a frame structure, which helps to reduce the weight of the three-dimensional mesh layer 100, and thus helps to reduce the overall weight of the air-dispersing module 010.

[0053] Please continue to refer to Figures 4 to 6In this embodiment, the air outlet surface is provided with a planar air outlet hole 120, which is a quadrilateral hole.

[0054] By setting the planar air outlet 120 as a quadrilateral hole, the planar air outlet 120 can have sufficient flow area, thereby making the air flow smoother and reducing airflow dead angles, so as to improve the overall ventilation efficiency.

[0055] Preferably, the planar air outlet 120 is a square hole.

[0056] Please continue to refer to Figures 4 to 6 In this embodiment, the three-dimensional mesh layer 100 is continuously bent in three directions to form a sawtooth structure, and the three-dimensional air outlet 130 has three air outlet surfaces.

[0057] This design allows the airflow passing through the three-dimensional mesh layer 100 to be delivered from three air outlets, which not only enhances ventilation efficiency and avoids localized airflow obstruction, but also enables the airflow to form three airflows in different directions after being delivered through one three-dimensional air outlet 130. These airflows collide with the airflows delivered from other three-dimensional air outlets 130 in three directions, which helps to disperse the airflow.

[0058] Please continue to refer to Figures 4 to 6 In this embodiment, the three air outlet surfaces of the three-dimensional air outlet 130 are perpendicular to each other in pairs.

[0059] This design allows the three-dimensional mesh layer 100 to form a honeycomb-like structure. With multiple mesh layers 100 arranged closely together, the airflow diffusion module 010 can be viewed as a tightly stacked array of cubes with only edges. This design not only ensures effective airflow dispersion but also enhances the structural strength and compressive strength of the airflow diffusion module 010, thereby improving its resistance to deformation.

[0060] Figure 7 This is a partial structural side view of the air distribution module 010 provided in this embodiment. (See attached image.) Figure 7 As shown, in two adjacent three-dimensional mesh layers 100, the crest of the serrated portion 110 of one layer is closely connected to the trough of the serrated portion 110 of the other layer, and several inclined air outlet channels 140 are formed between the two adjacent three-dimensional mesh layers 100.

[0061] As the airflow passes through the diffuser module 010, it can be delivered using the inclined air outlet channel 140. By changing the direction of airflow, direct blowing to the user is avoided. Furthermore, since several inclined air outlet channels 140 are formed between two adjacent three-dimensional mesh layers 100, and the three-dimensional mesh layer 100 is a serrated structure continuously formed in three directions, there are intersections between different air outlet channels 140. This causes the air conditioning air flowing in the first direction to collide after passing through different air outlet channels 140, thereby achieving a further dispersion effect.

[0062] In addition, by combining two adjacent three-dimensional mesh layers 100 in the form of crests to troughs of the sawtooth portion 110, the tight connection of the three-dimensional mesh layers 100 can be ensured, avoiding excess space inside the air dispersing module 010. This not only helps to reduce the thickness of the air dispersing module 010, but also allows the airflow to be dispersed by the downstream three-dimensional mesh layer 100 in a timely manner after being dispersed by the upstream three-dimensional mesh layer 100, instead of re-converging in the space between two adjacent three-dimensional mesh layers 100, thus ensuring the dispersion effect.

[0063] In this embodiment, the air dissipation module 010 is a 3D printed structure.

[0064] By manufacturing the ventilation module 010 using 3D printing, not only can the manufacturing cycle of the ventilation module 010 be shortened, but also the cost and time of mold manufacturing can be saved because there is no need to manufacture molds.

[0065] Example 2

[0066] Figure 8 This is a physical image of the air dissipation module 010 provided in this embodiment two. Figure 8 As shown, this embodiment provides another type of air dissipation module 010. The difference between this air dissipation module 010 and the air dissipation module 010 provided in the first embodiment is as follows.

[0067] Figure 9 This is a schematic diagram of the three-dimensional mesh layer 100 of the air dissipation module 010 provided in this embodiment 2; Figure 10 for Figure 9 Enlarged view of the local structure at point A; Figure 11 This is a partial front view of the three-dimensional mesh layer 100 of the air dissipation module 010 provided in this embodiment 2; Figure 12 This is a partial structural diagram of the three-dimensional mesh layer 100 of the air distribution module 010 provided in this embodiment. (See diagram below.) Figures 9 to 12 As shown, the three-dimensional mesh layer 100 is continuously bent in two directions to form a sawtooth structure, and the three-dimensional air outlet 130 has four air outlet surfaces.

[0068] This design allows the airflow passing through the three-dimensional mesh layer 100 to be delivered from four air outlets, which not only further enhances ventilation efficiency and avoids local airflow obstruction, but also allows the airflow to form four airflows in different directions after being delivered through one three-dimensional air outlet 130, and to collide with the airflows delivered from other three-dimensional air outlets 130 in four directions, thereby enhancing the airflow dispersion effect.

[0069] Example 3

[0070] This embodiment provides another type of air dissipation module 010, which differs from the air dissipation module 010 provided in Embodiment 1 above in the following ways.

[0071] Figure 13 This is a partial structural diagram of the three-dimensional mesh layer 100 of the air distribution module 010 provided in this embodiment. Figure 13 As shown, the three-dimensional mesh layer 100 is continuously bent in one direction to form a sawtooth structure, and the three-dimensional air outlet 130 has two air outlet surfaces.

[0072] This configuration allows the airflow passing through the three-dimensional mesh layer 100 to be delivered from two outlet surfaces, forming two airflows in different directions. These airflows collide with the airflows delivered from other three-dimensional outlet holes 130 in both directions, ensuring the dispersion of the airflow.

[0073] The configuration of this air dispersion module 010 not only ensures the dispersion effect of airflow, but also has a simple structure, making it easier to produce and manufacture.

[0074] The air dissipation module 010 provided in the above embodiments is provided with several staggered air dissipation ribs 150, which can block the downstream air dissipation hole in the first direction, thereby reducing the risk of the internal structure of the air conditioner indoor unit being directly exposed through the air dissipation hole and ensuring the overall aesthetics of the air conditioner indoor unit.

[0075] While the present invention has been 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 the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0076] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0077] In the above embodiments, descriptions of directions such as "front", "rear", and "side" are based on the accompanying drawings.

[0078] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ventilation module, characterized in that, The system includes multiple three-dimensional mesh layers (100) arranged along a first direction. In a plane perpendicular to the first direction, the three-dimensional mesh layers (100) are continuously bent in at least one direction to form a sawtooth structure. Each sawtooth structure includes two air outlet surfaces arranged at an angle at each sawtooth portion (110). The area between the two air outlet surfaces is used to form a three-dimensional air outlet hole (130).

2. The air distribution module according to claim 1, characterized in that, In two adjacent three-dimensional mesh layers (100), the crest of the serrated portion (110) of one layer is closely connected to the trough of the serrated portion (110) of the other layer, and several inclined air outlet channels (140) are formed between the two adjacent three-dimensional mesh layers (100).

3. The air dissipation module according to claim 2, characterized in that, The three-dimensional mesh layer (100) includes a plurality of air-diffusing ribs (150), which are cross-linked and arranged to form the serrated structure.

4. The air distribution module according to claim 1, characterized in that, The air outlet surface is provided with a planar air outlet hole (120), which is a quadrilateral hole.

5. The air distribution module according to claim 1, characterized in that, The air dissipation module is a 3D printed structure.

6. The air dissipation module according to any one of claims 1-5, characterized in that, The three-dimensional mesh layer (100) is continuously bent in three directions to form the sawtooth structure, and the three-dimensional air outlet (130) has three air outlet surfaces.

7. The air distribution module according to claim 6, characterized in that, Of the three air outlet surfaces of the three-dimensional air outlet (130), two are perpendicular to each other.

8. The air distribution module according to any one of claims 1-5, characterized in that, The three-dimensional mesh layer (100) is continuously bent in two directions to form the sawtooth structure, and the three-dimensional air outlet (130) has four air outlet surfaces.

9. The air dissipation module according to any one of claims 1-5, characterized in that, The three-dimensional mesh layer (100) is continuously bent in one direction to form the sawtooth structure, and the three-dimensional air outlet (130) has two air outlet surfaces.

10. An air conditioner, characterized in that, The air conditioner includes an indoor unit and an outdoor unit connected to the indoor unit via a refrigerant pipeline. The indoor unit includes a body (020) and a diffuser module as described in any one of claims 1-9. The diffuser module is installed on the body (020), wherein the body (020) has an air outlet, and the diffuser module is opposite to the air outlet.

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