Air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, comprising: an indoor unit shell; a spray pipe arranged in the indoor unit shell, wherein the spray pipe is provided with a spray opening, the spray opening is communicated with a pipe cavity of the spray pipe, so that water in the pipe cavity of the spray pipe is sprayed out through the spray opening; wherein the spray opening is a circular arc opening, the circular arc opening has oppositely arranged first and second ends along a circumferential direction of the spray pipe, the first and second ends are symmetrically arranged relative to a predetermined symmetry plane, and a central axis of the spray pipe is located in the predetermined symmetry plane. Through the technical scheme provided by the application, the technical problem that internal parts of the air conditioner indoor unit cannot be efficiently cleaned in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and more specifically, to an indoor air conditioning unit. Background Technology

[0002] Currently, after prolonged use, air conditioners accumulate dust, microorganisms, and bacteria on the surfaces of their components, which can be harmful to human health.

[0003] However, most air conditioners in the current technology do not have a self-cleaning function. Although some air conditioners have an evaporator self-cleaning function, they cannot effectively clean components such as filters, fan blades, and air ducts. Summary of the Invention

[0004] The main objective of this invention is to provide an air conditioner indoor unit to solve the technical problem that existing technologies cannot efficiently clean the internal components of air conditioner indoor units.

[0005] To achieve the above objectives, the present invention provides an indoor air conditioning unit, comprising: an indoor unit housing; a nozzle disposed within the indoor unit housing, the nozzle having a nozzle orifice connected to the cavity of the nozzle, so that water within the cavity of the nozzle is sprayed out through the nozzle orifice; wherein the nozzle orifice is an arc-shaped opening, the arc-shaped opening having a first end and a second end disposed opposite to each other along the circumferential direction of the nozzle, the first end and the second end being symmetrically disposed with respect to a predetermined symmetry plane, and the central axis of the nozzle being located within the predetermined symmetry plane.

[0006] Furthermore, the indoor unit of the air conditioner also includes: a filter screen, which is movably disposed inside the housing of the indoor unit. The filter screen has a filtering position and a cleaning position. When the filter screen is in the filtering position, it is located at the air inlet of the housing of the indoor unit. When the filter screen moves to the cleaning position, the nozzle of the spray pipe is directed toward the filter screen so as to clean the filter screen through the spray pipe.

[0007] Furthermore, the central axis of the nozzle lies within the plane of symmetry of the filter screen, the minimum arc angle corresponding to the arc-shaped opening is γ, the length of the filter screen is L, and the distance between the central axis of the nozzle and the surface of the filter screen is D; where,

[0008] Furthermore, the indoor unit housing includes a mounting panel, a front panel, a top panel, and a bottom panel. The mounting panel is used to mount on the wall and is positioned opposite to the front panel. The top panel and the bottom panel are positioned opposite to each other. The air inlet is located on the top panel. When the filter is in the filtration position, the filter is located on the top panel. When the filter is in the cleaning position, the filter moves to the front panel, and the spray nozzle is positioned opposite to the front panel.

[0009] Furthermore, there are multiple nozzles, which are spaced apart along the extension direction of the filter screen.

[0010] Furthermore, the air conditioner indoor unit also includes: an air duct component disposed within the indoor unit housing, and a spray nozzle movably disposed on at least a portion of the air duct component to clean the air duct component through the spray nozzle.

[0011] Furthermore, the air duct component includes: a volute assembly, on which the nozzle is rotatably mounted; and a fan blade, disposed within the air duct enclosed by the volute assembly, with the nozzle orifice of the nozzle facing the fan blade.

[0012] Furthermore, the volute assembly includes: a volute body on which the nozzle is rotatably mounted; a volute tongue opposite to the volute body; and a movable volute, which is movably mounted on the volute body and has a clearance position and a blocking position. When the movable volute is in the clearance position, it clears the air outlet. When the movable volute is in the blocking position, it overlaps the volute tongue and blocks the air outlet.

[0013] Furthermore, there are multiple nozzles, which are spaced apart along the extension direction of the volute body.

[0014] Furthermore, the nozzle is located on the side wall of the nozzle, and the top surface of the nozzle cavity is a guide surface, which is a plane.

[0015] Furthermore, the nozzle is located on the side wall of the nozzle, and the top surface of the nozzle cavity is a guide surface, which is an arc surface.

[0016] By applying the technical solution of this invention, a spray nozzle is installed inside the indoor unit housing. When cleaning of the internal components of the indoor unit housing is required, water in the nozzle cavity is sprayed out through an arc-shaped opening. This arc-shaped opening has a symmetrical structure, and the cleaning range of the spray nozzle is a fan-shaped area. The arc-shaped opening increases the cleaning range, facilitating efficient cleaning of the internal components of the indoor unit housing. Therefore, the technical solution provided by this invention can solve the technical problem of the inability to efficiently clean the internal components of an air conditioner indoor unit in the prior art. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A cross-sectional view of an indoor air conditioning unit according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of the external structure of a nozzle according to an embodiment of the present invention is shown;

[0020] Figure 3A cross-sectional view of a nozzle with a planar guide surface, according to an embodiment of the present invention, is shown;

[0021] Figure 4 A cross-sectional view of a nozzle with an arc-shaped guide surface according to an embodiment of the present invention is shown; and

[0022] Figure 5 A schematic diagram of the minimum cleaning range of a nozzle provided according to an embodiment of the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Indoor unit housing; 11. Mounting panel; 12. Front panel; 13. Top plate; 14. Base plate; 20. Nozzle; 21. Nozzle; 22. Guide surface; 30. Filter screen; 40. Air duct components; 41. Volute assembly; 411. Volute body; 412. Movable volute; 413. Volute tongue; 42. Fan blade; 51. First drip tray; 52. Second drip tray; 60. Drum; 70. Track; 80. Evaporator assembly. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 5 As shown, this embodiment of the invention provides an indoor air conditioner unit, which includes an indoor unit housing 10 and a nozzle 20. The nozzle 20 is disposed inside the indoor unit housing 10, and a nozzle 21 is provided on the nozzle 20. The nozzle 21 communicates with the cavity of the nozzle 20 so that water in the cavity of the nozzle 20 is sprayed out through the nozzle 21. The nozzle 21 is an arc-shaped opening, and the arc-shaped opening along the circumference of the nozzle 20 has a first end and a second end arranged opposite to each other. The first end and the second end are symmetrically arranged with respect to a predetermined symmetry plane, and the central axis of the nozzle 20 is located within the predetermined symmetry plane.

[0027] The technical solution provided in this embodiment effectively increases the cleaning range of internal components by setting an arc-shaped opening. Specifically, water in the nozzle 20 cavity is sprayed out through the arc-shaped opening to form a fan-shaped cleaning range, effectively cleaning the components within the cleaning range. The arc-shaped opening of the nozzle 20 effectively increases the cleaning area, thereby achieving efficient cleaning. Therefore, the technical solution provided in this embodiment can solve the technical problem of the inability to efficiently clean the internal components of an air conditioner indoor unit in the prior art.

[0028] Specifically, the indoor unit of the air conditioner in this embodiment also includes a filter 30, which is movably disposed within the indoor unit housing 10. The filter 30 has a filtering position and a cleaning position. When the filter 30 is in the filtering position, it is positioned at the air inlet of the indoor unit housing 10. When the filter 30 moves to the cleaning position, the nozzle 21 of the spray pipe 20 is directed towards the filter 30 to clean it. With this arrangement, the filter 30 is not cleaned when it is in the filtering position, and the phenomenon of cleaning water being blown out through the air inlet is also avoided. Specifically, the spray pipe 20 can be fixed, rotatable, or movable. The spray pipe 20 used to clean the filter 30 is called the upper cleaning device.

[0029] Specifically, the indoor unit of the air conditioner in this embodiment also includes a drum 60, a track 70, and a rack. The drum 60 is provided with multiple teeth, and the rack is disposed on the filter 30. Both the rack and the filter 30 are bendable structures. The teeth on the drum 60 and the teeth on the rack engage with each other, allowing the rack to move on the track 70, thereby guiding the movement of the rack. Specifically, when the drum 60 rotates, the teeth on the drum 60 mesh with the teeth on the rack, thereby driving the rack to move through the drum 60.

[0030] In this embodiment, the central axis of the nozzle 20 can be located within the plane of symmetry of the filter screen 30, and the minimum arc angle corresponding to the arc-shaped opening is γ (e.g., Figure 5 As shown), the length of filter 30 is L (specifically, filter 30 has a rectangular structure, and the length of filter 30 refers to the dimension along the length direction of the indoor unit housing 10), and the distance between the central axis of nozzle 20 and the mesh surface of filter 30 is D (specifically, the central axis of nozzle 20 and the mesh surface of filter 30 are set parallel to each other, and the distance between the central axis of nozzle 20 and the mesh surface of filter 30 is the distance between a straight line and a plane parallel to that straight line); where, With this configuration, the arc-shaped nozzle above the spray pipe 20 has a fan-shaped opening angle (i.e., the minimum arc angle corresponding to the arc-shaped opening) of γ. This ensures that even at a distance of D, the minimum arc angle allows the cleaning area of ​​the spray pipe 20 to cover the entire filter screen 30, thus ensuring effective cleaning of the filter screen 30.

[0031] Specifically, one embodiment is as follows: the filter screen 30 is 600mm long and is divided into two 300mm long filter screens 30 on the left and right. At this time, two upper spray nozzles can be set, and the fan-shaped opening angle of the nozzles is 130°. The two spray nozzles are respectively placed in the middle of the left and right filter screens 30, and the distance from the filter screens 30 is 70mm, thereby ensuring effective cleaning of the filter screens 30.

[0032] Specifically, in this embodiment, the indoor unit housing 10 includes a mounting panel 11, a front panel 12, a top plate 13, and a bottom plate 14. The mounting panel 11 is used for wall mounting and is positioned opposite to the front panel 12. The top plate 13 and bottom plate 14 are also positioned opposite each other. The air inlet is located on the top plate 13. When the filter 30 is in the filtering position, it is positioned on the top plate 13. When the filter 30 is in the cleaning position, it moves to the front panel 12, where the spray nozzle 20 is positioned opposite to it. Specifically, some tracks 70 are located on the top plate 13, and some tracks 70 are located on the front panel 12, to facilitate the movement of the filter 30 from the filtering position to the cleaning position, thus better guiding its movement. This structural layout facilitates effective cleaning of the filter 30 and prevents water used for cleaning the filter 30 from being blown out through the air inlet.

[0033] To further improve the cleaning effect on the filter 30, multiple nozzles 20 can be configured, spaced apart along the extension direction of the filter 30. This arrangement allows some nozzles 20 to intersect during cleaning, effectively enhancing the cleaning effect at these intersections and thus improving the overall cleaning effect on the filter 30. Specifically, the filter 30 has a rectangular structure, and its extension direction is consistent with the length extension direction of the indoor unit housing 10.

[0034] Specifically, the indoor unit of the air conditioner in this embodiment also includes a duct component 40, which is disposed within the indoor unit housing 10. A nozzle 20 is movably disposed on at least a portion of the duct component 40 to clean the duct component 40. This arrangement, by placing the nozzles 20 at different locations within the indoor unit housing 10, facilitates the cleaning of different components inside the housing 10. Specifically, in this embodiment, some nozzles 20 are disposed opposite to the front panel 12 to facilitate cleaning the filter 30; some nozzles 20 are disposed on at least a portion of the duct component 40 to facilitate cleaning the duct component 40; and nozzles 20 can also be disposed at locations corresponding to other components to effectively clean other components. This distributed arrangement structure significantly increases the cleaning range, facilitating better cleaning of different components inside the indoor unit housing 10, thus achieving comprehensive cleaning of all components within the indoor unit housing 10.

[0035] In this embodiment, the air duct component 40 includes a volute assembly 41 and a fan blade 42, with a nozzle 20 rotatably mounted on the volute assembly 41. The fan blade 42 is disposed within the air duct enclosed by the volute assembly 41, and the nozzle 21 of the nozzle 20 faces the fan blade 42. With this arrangement, during cleaning, the nozzle 20 rotates to increase its cleaning area, enabling effective cleaning of both the fan blade 42 and the volute assembly 41. Specifically, the nozzle 20 can rotate 360° to achieve effective cleaning of the air duct component 40. The nozzle 20 used for cleaning the air duct component 40 is a lower-end cleaning device.

[0036] Specifically, in this embodiment, the volute assembly 41 includes a volute body 411, a volute tongue 413, and a movable volute 412. The nozzle 20 is rotatably mounted on the volute body 411. The volute tongue 413 is disposed opposite to the volute body 411, and the movable volute 412 is movably mounted on the volute body 411. The movable volute 412 has a clearance position and a blocking position. When the movable volute 412 is in the clearance position, it clears the air outlet. When the movable volute 412 is in the blocking position, it overlaps the volute tongue 413 and blocks the air outlet.

[0037] With this structural design, when cleaning the air duct component 40, the movable volute 412 is first moved to the obstructed position, and then the spray nozzle 20 rotates to spray water, effectively cleaning the internal components of the indoor unit housing 10. Because the movable volute 412 is in the obstructed position, this prevents water from flowing out of the air outlet after cleaning, thus avoiding any impact on the user experience. Specifically, a sealing element can be provided on the movable volute 412. When the movable volute 412 is in the obstructed position, the sealing element abuts against the volute body 411 to improve the sealing effect and further prevent water from flowing out of the air outlet.

[0038] Specifically, multiple nozzles 20 can be configured, with the multiple nozzles 20 spaced apart along the extension direction of the volute body 411. Specifically, the extension direction of the volute body 411 is consistent with the extension direction of the indoor unit housing 10, which extends along its length. This configuration facilitates better cleaning of the volute assembly 41 and the fan blades 42, thereby improving the cleaning effect.

[0039] In this embodiment, the indoor unit of the air conditioner also includes an evaporator assembly 80, a first drip tray 51, and a second drip tray 52. ​​The first drip tray 51 is located on the front panel 12, above the air outlet, to collect water flowing down from the filter 30, thus preventing secondary contamination of the internal components of the indoor unit housing 10 by the cleaned water and effectively ensuring the cleaning effect. The second drip tray 52 is located below the volute assembly 41, to collect water flowing down from the fan blades 42 and the volute assembly 41, further preventing secondary contamination of the internal components of the indoor unit housing 10 by the cleaned water and ensuring the cleaning effect.

[0040] Specifically, in this embodiment, the volute 413 of the indoor unit of the air conditioner is provided with a receiving groove. The receiving groove is located below the evaporator assembly 80. The receiving groove can collect the water condensed on the evaporator assembly 80. The receiving groove is connected to the spray pipe 20 so that the condensed water can effectively clean the internal components of the indoor unit housing 10 without the need for external water supply, which also simplifies the structure of the device.

[0041] Specifically, the nozzle 21 can be located on the side wall of the nozzle 20, and the top surface of the nozzle 20 cavity can be a guide surface 22, which is a plane. With this arrangement, some of the water inside the cavity flows to the guide surface 22 and is then ejected from the nozzle 21 under the action of the guide surface 22.

[0042] Alternatively, the nozzle 21 can be located on the side wall of the nozzle 20, with the top surface of the nozzle 20 cavity serving as a guide surface 22, which is an arc surface. Specifically, the guide surface 22 can be a circular arc surface. By setting such a structure, the guide surface 22 can reduce the pressure loss of the high-speed water flow during water guidance, thereby increasing the water flow velocity from the nozzle 21 and further improving the cleaning effect.

[0043] Using the technical solution provided in this embodiment, the nozzle 20 has a hollow interior and an arc-shaped opening at the top. When cleaning is required, water enters the hollow interior structure from below the nozzle 20, is accelerated through the narrow arc-shaped opening, and is then sprayed out to clean the internal components of the air conditioner indoor unit. The nozzle located above the interior of the indoor unit housing 10 is used to clean the filter 30 structure, and the nozzle located below the interior of the indoor unit housing 10 is used to clean the air duct components 40.

[0044] When cleaning the air conditioner, first turn the air conditioner off and close the air vents.

[0045] The cleaning process for filter screen 30 is as follows: First, the drum 60 drives filter screen 30 from the horizontal track 70 to the vertical track 70; then, the nozzle begins to spray high-speed water, while simultaneously, the drum 60 drives filter screen 30 to gradually move from the vertical track 70 to the horizontal track 70. When filter screen 30 returns to its original position, the nozzle stops spraying water. During this process, as filter screen 30 gradually moves from the vertical track 70 to the horizontal track 70, the high-speed water cleans each section of filter screen 30. The cleaned water flows downwards to the first water receiving tray 51 and is discharged outdoors.

[0046] The cleaning of the air duct component 40 is as follows: The movable volute 412 overlaps with the wall of the volute tongue 413 to form a water-blocking structure to prevent water sprayed from the nozzle from leaking to the outside of the air conditioner. Then, the nozzle begins to spray a high-speed water stream. The nozzle is driven by a motor to achieve 360° rotation, thereby completing the cleaning of the entire fan blade 42 and the air duct (volute, movable volute 412, volute tongue 413). The cleaned water flows through the volute and movable volute 412 to the second water receiving tray 52 and is discharged outdoors.

[0047] After completing the above cleaning process, dry the inside of the air conditioner: turn on the air conditioner to heating mode and start the fan blades 42 (which can be a cross-flow fan) to dry the water on the internal structure of the air conditioner.

[0048] The air conditioner cleaning is completed by following the steps above.

[0049] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: effectively increasing the cleaning range, realizing efficient cleaning of the internal components of the air conditioner indoor unit, improving the air quality at the air outlet, and improving the user's comfort.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0052] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0053] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0054] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: Indoor unit casing (10); The nozzle (20) is disposed inside the indoor unit housing (10). The nozzle (20) is provided with a nozzle (21). The nozzle (21) is connected to the cavity of the nozzle (20) so that the water in the cavity of the nozzle (20) is sprayed out through the nozzle (21). The nozzle (21) is an arc-shaped opening. Along the circumferential direction of the nozzle (20), the arc-shaped opening has a first end and a second end that are arranged opposite to each other. The first end and the second end are symmetrically arranged with respect to a predetermined symmetry plane. The central axis of the nozzle (20) is located within the predetermined symmetry plane. A filter screen (30) is movably disposed within the indoor unit housing (10). The filter screen (30) has a filtering position and a cleaning position. When the filter screen (30) is in the filtering position, it is disposed at the air inlet of the indoor unit housing (10). When the filter screen (30) moves to the cleaning position, it is disposed away from the air inlet, and the nozzle (21) of the spray pipe (20) is disposed towards the filter screen (30) so as to clean the filter screen (30) through the spray pipe (20). The central axis of the nozzle (20) is located within the plane of symmetry of the filter screen (30), the minimum arc angle corresponding to the arc-shaped opening is γ, the length of the filter screen (30) is L, and the distance between the central axis of the nozzle (20) and the surface of the filter screen (30) is D; wherein, The volute (413) and the evaporator assembly (80) are provided with a receiving groove, which is located below the evaporator assembly (80) and is connected to the nozzle (20).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The indoor unit housing (10) includes a mounting panel (11), a front panel (12), a top plate (13), and a bottom plate (14). The mounting panel (11) is used to mount on the wall. The mounting panel (11) is arranged opposite to the front panel (12). The top plate (13) and the bottom plate (14) are arranged opposite to each other. The air inlet is arranged on the top plate (13). When the filter (30) is in the filtering position, the filter (30) is arranged on the top plate (13). When the filter (30) is in the cleaning position, the filter (30) moves to the front panel (12). The spray pipe (20) is arranged opposite to the front panel (12).

3. The indoor unit of the air conditioner according to claim 1, characterized in that, There are multiple nozzles (20), and the multiple nozzles (20) are spaced apart along the extension direction of the filter screen (30).

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The indoor unit of the air conditioner also includes: A duct component (40) is disposed inside the indoor unit housing (10), and a nozzle (20) is movably disposed on at least a portion of the duct component (40) to clean the duct component (40) through the nozzle (20).

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The air duct component (40) includes: The volute assembly (41) on which the nozzle (20) is rotatably mounted; The fan blade (42) is disposed within the air duct formed by the volute assembly (41), and the nozzle (21) of the nozzle (20) is disposed facing the fan blade (42).

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The volute assembly (41) includes: The volute body (411) has the nozzle (20) rotatably mounted on it. The volute tongue (413) is disposed opposite to the volute body (411); A movable volute (412) is movably disposed on the volute body (411). The movable volute (412) has a clearance position and a blocking position. When the movable volute (412) is in the clearance position, the movable volute (412) is disposed to avoid the air outlet. When the movable volute (412) is in the blocking position, the movable volute (412) overlaps the volute tongue (413) and blocks the air outlet.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, There are multiple nozzles (20), and the multiple nozzles (20) are spaced apart along the extension direction of the volute body (411).

8. The indoor unit of an air conditioner according to any one of claims 1 to 7, characterized in that, The nozzle (21) is located on the side wall of the nozzle (20), and the top surface of the nozzle (20) cavity is a guide surface (22), which is a plane.

9. The indoor unit of an air conditioner according to any one of claims 1 to 7, characterized in that, The nozzle (21) is located on the side wall of the nozzle (20), and the top surface of the nozzle (20) cavity is a guide surface (22), which is an arc surface.

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