Indoor unit and air conditioner

Abstract

The invention provides an indoor unit and an air conditioner. The indoor unit comprises a shell assembly, a sliding door and an air guide piece. The shell assembly is provided with an air outlet. The number of the sliding doors is two, the two sliding doors are arranged in a spaced mode in the left-right direction, and the sliding doors can slide relative to the shell assembly so as to open or at least partially close the air outlet; the air guide piece is rotatably arranged at the air outlet and located between the two sliding doors; when the air outlet is in a closed state, the air guide piece rotates to shield part of the air outlet, and an appearance face exposed out of the sliding door is formed. The air guide piece can rotate, the state of the air guide piece relative to the air outlet can be adjusted according to the opening state or the closing state of the air outlet, the air guide function can be achieved at least, and the diffusion range of airflow is expanded; and when the sliding door is closed, the air guide piece can rotate to the preset state to form an appearance surface for exposing the sliding door, so that the appearance consistency and the appearance attractiveness of the indoor unit can be improved.

Description

Technical Field

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

[0002] Air conditioning air guide components, especially grilles, are core functional components of cabinet air conditioners, integrating functions such as air guiding and direction, safety protection, softening airflow, aesthetic decoration, and structural support.

[0003] However, the fixed posture of traditional air conditioning grilles limits their adaptability to various application scenarios. Summary of the Invention

[0004] This application addresses the shortcomings of existing methods by proposing an indoor unit and air conditioner to solve the technical problem that traditional air conditioner grilles have a fixed posture and significantly limited adaptability to application scenarios.

[0005] In a first aspect, embodiments of this application provide an indoor unit, including: Housing assembly with air outlet; The sliding door has two doors, which are spaced apart in the left-right direction. The sliding doors are slidable relative to the housing assembly to open or at least partially close the air outlet. An air guide is rotatably disposed at the air outlet, and the air guide is located between the two sliding doors; when the air outlet is closed, the air guide rotates to partially block the air outlet, forming an exposed surface of the sliding door.

[0006] Optionally, the air guide is a grille. When the air outlet is closed, the grille rotates to the side wall of the grille to partially block the air outlet, forming an exposed surface of the sliding door. Alternatively, the air guide includes multiple blades, which rotate to partially block the air outlet when the air outlet is closed, forming an exposed surface on the sliding door.

[0007] Optionally, the air guide is a grille. When the air outlet is closed, the outer surface of the grille is sandwiched between the two sliding doors to form a continuously transitioning display surface.

[0008] Optionally, the grille may further include a grille surface forming an air guide channel; When the air outlet is open, the grille rotates to partially block the air outlet, and the air guide channel is connected to the air outlet.

[0009] Optionally, when the air outlet is open, the rotation angle of the grille relative to the first plane includes 0° to 180°, and the grille surface of the grille partially blocks the air outlet; When the air outlet is closed, the rotation angle of the grille relative to the first plane includes 90°, and the outer surface of the grille partially obscures the air outlet; the first plane is the plane where the air outlet is located.

[0010] Optionally, the grille includes a frame and multiple ribs disposed within the frame, the multiple ribs forming at least one air guide channel; At least one of the air guide channels includes an inclined air guide channel, which intersects the first plane at an angle; the first plane is the plane where the air outlet is located.

[0011] Optionally, when the grille surface partially blocks the air outlet, the inclined air guide channel is inclined from the center of the air outlet to both sides along the front-back direction of the grille. Alternatively, with the grille surface partially obscuring the air outlet, the inclined air guide channel is inclined from both sides of the air outlet toward the center along the front-back direction of the grille.

[0012] Optionally, the grille includes a first region and a second region located on both sides of the first region in the left-right direction; The air guide channel includes a straight air guide channel located in the first region, and the ribs of the straight air guide channel are perpendicular to the first plane; The inclined air guide channel is located in the second region, and the extension direction of the ribs of the inclined air guide channel intersects the first plane at an inclination.

[0013] Optionally, the inclined air guide channels in the two second regions are arranged symmetrically with respect to the center line of the grille.

[0014] Optionally, each of the ribs is set at an angle to the first plane, and the air guiding channel of the grid structure includes the inclined air guiding channel; the inclined air guiding channel is arranged symmetrically with respect to the center line of the grid.

[0015] Optionally, the angle between the ribs and the first plane gradually decreases from the middle position of the grille to both sides.

[0016] Optionally, the housing assembly further includes an air duct, the outlet of which is located in front of the air outlet and communicates with the air outlet; the grille surface includes a first grille surface and a second grille surface; When the grille is rotated to a position of 0° relative to the first plane, the first grille surface of the grille is close to the outlet of the air duct, and the inclined air guide channel constructed of ribs is inclined from the center of the air outlet to both sides; When the grille is rotated to a position of 180° relative to the first plane, the second grille surface of the grille is close to the outlet of the air duct, and the inclined air guide channel with ribs is inclined from both sides of the air outlet towards the center.

[0017] Optionally, the projection of the grille in the horizontal plane is arc-shaped, the first grille surface is concave, and the second grille surface is convex.

[0018] Optionally, the ribs of the grille are arranged with alternating lengths within the projection of the horizontal plane.

[0019] Optionally, the grid includes a first grid plate and a second grid plate, wherein the first grid plate and the second grid plate are arranged parallel to each other and at a distance. When the air outlet is open, the air outlet, the first grille, and the second grille are connected in sequence.

[0020] Optionally, the grid further includes two connecting plates, which are respectively connected to both sides of the first grid plate and the second grid plate; The connecting plate, the first grid plate, and the second grid plate together form a duct with a cavity.

[0021] Optionally, in the closed state of the air outlet, the connecting plate serves as the exterior surface.

[0022] Optionally, the connecting plate is an arc-shaped plate; When the air outlet is closed, the connecting plate smoothly transitions to the outer surface of the sliding door.

[0023] Optionally, the grille includes a frame and multiple ribs disposed within the frame, the multiple ribs forming at least one air guide channel; Along the front-to-back direction, the ribs are perpendicular to the first plane, and the thickness of the ribs gradually changes, so that at least one air guide channel in the structure includes a variable diameter channel; the first plane is the surface where the air outlet is located.

[0024] Optionally, the sidewalls of the frame protrude from the grid surface on either side of the grid.

[0025] Secondly, this application provides an air conditioner including the indoor unit described in the above embodiments.

[0026] The beneficial technical effects of the technical solutions provided in this application include: In this embodiment, the air guide is located at the air outlet and is used for guiding and softening air. The air guide is rotatably disposed at the air outlet and is located between two sliding doors. Users can adjust the angle of the air guide relative to the first plane according to the needs of specific scenarios, thereby accurately controlling the direction of the airflow blown from the air outlet to adapt to different application scenarios and thus improve the application scenario adaptability of the air guide. Furthermore, when the air outlet is closed, the air guide can rotate to a preset state, allowing it to partially block the air outlet and create an exposed surface on the sliding door. This allows the surface of the air guide and the surface of the sliding door to serve as the indoor unit's display surface, thereby improving the consistency and aesthetics of the indoor unit's appearance.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This application provides a schematic diagram of the structure of an indoor unit. Figure 2 for Figure 1 A magnified view of a portion of point A in the middle; Figure 3 This is a schematic diagram of the structure of a grille provided in an embodiment of this application; Figure 4 A schematic cross-sectional view of a grille along a horizontal plane is provided for an embodiment of this application. Figure 5 This is a schematic diagram showing the state in which the first grille surface of the grille is close to the outlet of the air duct to achieve an air expansion effect when the indoor unit is in the first open state of the air outlet, as provided in the embodiments of this application. Figure 6 This is a schematic diagram showing the state in which the second grille surface of the grille is close to the outlet of the air duct to achieve the air gathering effect when the indoor unit is in the first open state of the air outlet, as provided in the embodiments of this application. Figure 7 A schematic diagram showing the appearance of the side wall of the grille when the air outlet of the indoor unit is closed, as provided in the embodiments of this application. Figure 8 A schematic diagram showing the sliding door and the two sides of the grille overlapping in the second open state of the indoor unit provided in this application embodiment; Figure 9 A schematic diagram of the structure of a grille provided in another embodiment of this application; Figure 10A cross-sectional view of the grille along a horizontal plane, provided for another embodiment of this application; Figure 11 This is a schematic diagram showing the state in which the first grille surface of the grille is close to the outlet of the air duct to achieve an air expansion effect when the indoor unit is in the first open state of the air outlet, as provided in the embodiments of this application. Figure 12 This is a schematic diagram showing the state in which the second grille surface of the grille is close to the outlet of the air duct to achieve the air gathering effect when the indoor unit is in the first open state of the air outlet, as provided in the embodiments of this application. Figure 13 A schematic diagram showing the appearance of the side wall of the grille when the air outlet of the indoor unit is closed, as provided in the embodiments of this application. Figure 14 Schematic diagrams of the grille structure provided for other embodiments of this application; Figure 15 A cross-sectional view of the grille along the horizontal plane for other embodiments of this application; Figure 16 A schematic diagram of the indoor unit in the first open state of the air outlet, provided in an embodiment of this application; Figure 17 A schematic diagram showing the grille connecting plate as an exterior surface of the indoor unit in the closed state of the air outlet, as provided in other embodiments of this application; Figure 18 A cross-sectional view of the grille along the horizontal plane for other embodiments of this application; Figure 19 A schematic diagram showing the state in which the inlet area of ​​the air guide channel of the indoor unit is smaller than the outlet area of ​​the air guide channel in the first open state of the air outlet, so as to achieve the air expansion effect, for other embodiments of this application; Figure 20 A schematic diagram showing the state in which the inlet area of ​​the air guide channel of the indoor unit is larger than the outlet area of ​​the air guide channel in the first open state of the air outlet, so as to achieve the air gathering effect, for other embodiments of this application; Figure 21 This is a schematic diagram showing the appearance of the grille sidewall forming an exterior surface when the air outlet of the indoor unit is closed, as provided in other embodiments of the application.

[0029] Explanation of reference numerals in the attached figures: 10 - Housing assembly; 11-Air outlet; 12-Main housing; 13-Base; 14-Top cover; 15-Air duct; 20 - Sliding door; 30-Grate; 31 - Exterior surface; 32 - Grille surface; 321 - First grille surface; 322 - Second grille surface; 33-Air guide channel; 331-Inclined air guide channel; 332-Straight air guide channel; 333-Variable diameter channel; 34-Frame; 35-Rib; 36-First grating plate; 37-Second grating plate; 38-Connecting plate; 39-Cavity; 40-Rotating shaft; 50-Air guide plate; 60-Cross-flow fan; 70-Evaporator; 80-Upper and lower sweeping blades; 81-Second through hole; A1 - First area; A2 - Second area. Detailed Implementation

[0030] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0031] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0033] Reference Figures 1-21 This application provides an indoor unit including a housing assembly 10, an air guide, and two sliding doors 20. The housing assembly 10 has an air outlet 11. The two sliding doors 20 are spaced apart in a left-right direction and are slidable relative to the housing assembly 10 to open or at least partially close the air outlet 11. The air guide is rotatably disposed at the air outlet 11 and is located between the two sliding doors 20. In the closed state of the air outlet 11, the air guide rotates to partially block the air outlet 11, forming an exposed surface 31 on the sliding door 20.

[0034] In this embodiment, the air guide is rotatably disposed at the air outlet 11 for gentle breeze and air guidance, and is located between the two sliding doors 20. When the indoor unit is in the air supply state, the user can adjust the angle of the grille 30 relative to the first plane according to the needs of a specific scenario, thereby accurately controlling the direction of the airflow blown out from the air outlet 11; the air guide can also be controlled to swing back and forth to achieve a sweeping effect, making the airflow diffusion more uniform, achieving rapid temperature control in the space, and thus improving the multi-scenario adaptability of the indoor unit.

[0035] Furthermore, when the air outlet 11 is closed, the air guide can rotate to a preset state, so that the air guide partially blocks the air outlet 11, forming an exposed surface on the sliding door 20.

[0036] Optionally, in one embodiment, the aforementioned air guide is a grille 30. When the air outlet 11 is closed, the grille 30 rotates to partially obstruct the air outlet 11 from its side wall, forming an exposed surface 31 on the sliding door 20. Furthermore, when the air outlet 11 is closed, the surface 31 of the grille 30 and the surface of the sliding door 20 together serve as the display surface of the indoor unit, thereby improving the consistency and aesthetics of the indoor unit's appearance.

[0037] In this embodiment, the grille 30 forms an air guide channel 33. When the air conditioner is in operation, part of the airflow at the air outlet 11 can pass through the air guide channel 33 to achieve a gentle breeze, and the grille 30 can also be used to sweep air by oscillating. When the air conditioner is off, part of the grille 30 extends between the two sliding doors 20, so that the outer surface 31 of the grille 30 is exposed on the sliding door 20, which can improve the appearance consistency of the indoor unit; it also helps to shorten the dimensions of the indoor unit in the front-to-back direction, making the structural arrangement of the indoor unit more compact and reasonable, reducing the floor space occupied by the indoor unit, and facilitating the miniaturization of the indoor unit.

[0038] Alternatively, in another alternative embodiment, the aforementioned air guide includes multiple blades (not shown in the figure). When the air outlet 11 is closed, the multiple blades rotate to partially block the air outlet 11, forming an exposed surface on the sliding door 20.

[0039] In this embodiment, when the air conditioner is in operation, multiple rotatable blades can guide and disperse airflow. When the air conditioner is off, the two sliding doors 20 are closed, and the multiple blades can stop at a preset angle, sealing at least part of the air outlet 11 and forming an exposed surface on the sliding door 20, thereby improving the appearance consistency of the indoor unit.

[0040] Optionally, when the air conditioner is off, multiple blades overlap sequentially in the left-right direction to form the exterior surface; or multiple blades overlap sequentially in the up-down direction to form the exterior surface; or some blades overlap sequentially in the left-right direction and some blades overlap sequentially in the up-down direction to form the exterior surface.

[0041] Optionally, multiple blades are disposed on the dustproof net at the air outlet 11 and are located inside the dustproof net. When the air outlet 11 is open, the multiple blades rotate to the open portion of the air outlet 11.

[0042] Optionally, refer to Figure 7 , Figure 13 , Figure 17 and Figure 21 With the air outlet 11 closed, the exterior surface 31 of the grille 30 is sandwiched between the two sliding doors 20, forming a continuous transition display surface.

[0043] In this embodiment, the outer surface 31 of the grille 30 can form a continuous transition display surface with the sliding door 20, which can eliminate or blur the gaps, height differences, and material breaks between different components in traditional designs, creating a smooth and complete visual plane, making the indoor unit more visually integrated. Moreover, the flat and continuous display surface can effectively reduce the gap between the grille 30 and the sliding door 20, effectively preventing external dust from entering the interior of the indoor unit, thereby improving the overall cleaning performance of the indoor unit.

[0044] Optionally, refer to Figures 5-6 , Figures 11-12 , Figure 16 as well as Figures 19-20 The grille 30 also includes a grille surface 32 with an air guide channel 33. When the air outlet 11 is open, the grille 30 rotates to the point where the grille surface 32 partially blocks the air outlet 11, and the air guide channel 33 is connected to the air outlet 11.

[0045] In this embodiment, the portion of the grille 30 that is opposite to the air outlet 11 can be adjusted according to whether the air outlet 11 is open or closed. When the user starts the indoor unit, the sliding door 20 opens, and the grille 30 automatically adjusts to block part of the air outlet 11 on the grille surface 32, so that the air outlet 11 and the air guide channel 33 of the grille 30 are connected, allowing the airflow at the air outlet 11 to be blown out through the air guide channel 33.

[0046] Optionally, refer to Figures 5-6 , Figures 11-12 , Figure 16 as well as Figures 19-20 In the first open state of the air outlet 11, there are gaps on both sides of the sliding door 20 and the grille 30, so that the airflow at the air outlet 11 is blown out from the air guide channel 33 of the grille 30 and the gap between the sliding door 20 and the grille 30.

[0047] In this embodiment, the grille 30 is located in the middle of the air outlet 11. The airflow blown out from the air guide channel 33 of the grille 30 has a gentle breeze effect, which can avoid direct cold air blowing. The airflow blown out from the gap between the two sides of the grille 30 and the sliding door 20 can diffuse to both sides, which can also avoid direct cold air blowing, and can also increase the air volume delivered by the indoor unit per unit time, which can meet the air supply requirements in a large space and expand the multi-scenario adaptability of the indoor unit.

[0048] Optionally, refer to Figure 8 The air outlet 11 also has a second open state. In the second open state of the air outlet 11, the sliding door 20 overlaps or approaches the left and right sides of the grille 30.

[0049] In this embodiment, the user can adjust the state of the sliding door 20 according to the air supply requirements of another scenario, such as air supply in a small space. The air guide channel 33 of the grille 30 is connected to the air outlet 11, so that the sliding door 20 overlaps or approaches the two sides of the grille 30. At this time, the airflow at the air outlet 11 can only be blown out from the air guide channel 33 of the grille 30, which reduces the air volume of the indoor unit and avoids direct cold air blowing, thus meeting the air supply requirements of a small space and improving the user experience.

[0050] Optionally, based on the above-mentioned air outlet 11 being in the second open state for air supply, this embodiment of the application also expands another application scenario for the indoor unit: during a power outage, the sliding door 20 can also be adjusted to the second open state. At this time, the air guide channel 33 of the grille 30 is still connected to the air outlet 11, but no airflow is blown out. At this time, the grille surface 32 of the grille 30 faces outward, and the grille surface 32 and the sliding door 20 form a continuous transition display surface, thereby creating another form of appearance display effect, realizing the multi-functional adjustment of the indoor unit, and adapting to different home scenarios.

[0051] In one possible application scenario, when the user sets the air outlet 11 to the second open state, and the sliding door 20 and grille 30 to be overlapped or close together on both sides, as the indoor unit is in the start-up state, it can also be set to the indoor unit in the off state simultaneously. Therefore, when the indoor unit starts, there is no need to adjust the state of the sliding door 20 and grille 30, saving energy consumption during startup and improving startup response speed.

[0052] Optionally, the indoor unit in this embodiment of the application can communicate with the user's terminal device, so that the user can adjust the status of the indoor unit according to the various operating modes of the indoor unit provided, thereby improving the convenience of life.

[0053] In this embodiment of the application, the open state of the air outlet 11 includes the first open state of the air outlet 11 and the second open state of the air outlet 11 as described above.

[0054] Optionally, refer to Figures 5-7 , Figures 11-13 , Figures 16-17 as well as Figures 19-21 The grille 30 can rotate from 0° to 180° relative to the first plane, and can rotate clockwise or counterclockwise relative to the first plane. In the first open state of the air outlet 11, the rotation angle of the grille 30 relative to the first plane includes 0° to 180°, and the grille surface 32 of the grille 30 partially obscures the air outlet 11. In the closed state of the air outlet 11, the rotation angle of the grille 30 includes 90°, and the outer surface 31 of the grille 30 partially obscures the air outlet 11. The first plane is the plane where the air outlet is located.

[0055] In this embodiment, the grille 30 can rotate 0° to 180° clockwise or counterclockwise around the rotation axis 40, thereby allowing the grille 30 to be rotated to a set angle or position according to the user's needs in different scenarios, thus achieving different air delivery effects. The user can also control the grille 30 to swing within a certain range during air delivery, enabling the grille 30 to adapt to a wider range of usage scenarios and enhancing the indoor unit's adaptability to different environments.

[0056] In this embodiment, when the rotation angle of the grille 30 includes 0° or 180°, the grille 30 is approximately parallel to the surface of the air outlet 11, and the grille surface 32 of the grille 30 partially blocks the air outlet 11, so that the air guide channel 33 is connected to the air outlet 11. When the rotation angle of the grille 30 includes 90°, the grille 30 is approximately perpendicular to the surface of the air guide channel 33, so that the side wall of the grille 30 away from the air outlet 11 serves as the appearance surface 31, and the appearance surface 31 partially blocks the air outlet 11.

[0057] It should be noted that, in the embodiments of this application, the plane where the air outlet 11 is located refers to the plane parallel to the vertical direction at the air outlet 11.

[0058] Optionally, refer to Figures 1-2 as well as Figures 5-8 The indoor unit of this application embodiment also includes a rotating assembly (not shown in the figure) for driving the grille to rotate. The housing assembly 10 includes a main housing 12, a base 13, and a top cover 14. The main housing 12 can be designed as cylindrical or approximately cylindrical according to design requirements. The evaporator 70 and the cross-flow fan 60 of the indoor unit are both disposed inside the main housing 12.

[0059] The interior of the main housing 12 also forms the air duct 15 for the indoor unit. The air outlet 11 is located in front of the outlet of the air duct 15, and the grille 30 is rotatably disposed at the air outlet 11 to at least partially block the air outlet 11. The airflow generated by the cross-flow fan 60 flows along the side wall of the air duct 15 to the air duct outlet, passes through multiple air guide channels 33 of the grille 30, and is blown out from the air outlet 11.

[0060] Optionally, the rotating component can be mounted on the base 13 or on the top cover 14. Of course, it can also be mounted on both the base 13 and the top cover 14.

[0061] Optionally, the rotating assembly includes a rotating shaft 40 and a drive structure (not shown in the figure). The rotating shaft 40 is connected to the grille 30, and the drive structure is connected to the rotating shaft 40, which can drive the rotating shaft 40 to rotate, thereby driving the grille 30 to rotate around the axis of the rotating shaft 40.

[0062] Optionally, the drive structure includes at least a motor, which can be directly connected to the rotating shaft 40 via the motor's output shaft, thereby driving the rotating shaft 40 and the grille 30 to rotate. The drive structure may also include a transmission component, such as a meshing drive gear and a driven gear, with the driven gear connected to the rotating shaft 40, thereby driving the rotating shaft 40 and the grille 30 to rotate via the transmission component.

[0063] One or two drive structures can be arranged, so that the drive structure can be set on at least one of the base 13 and the top cover 14. When one drive structure is arranged, it is preferred to set it on the base 13, so that the rotating shaft 40 is rotatably connected to the top cover 14.

[0064] Optionally, the upper end of the grille 30 is close to the top cover 14, and the lower end of the grille 30 is close to the base 13. There are two rotating shafts 40, which are arranged at the upper and lower ends of the grille 30. In this case, the rotating shafts 40 can be rotatably connected to the upper and lower ends of the air outlet 11, which has a better concealment effect and avoids affecting the appearance of the grille 30, while also avoiding affecting the air outlet effect of the grille 30.

[0065] The relative position of the rotating shaft 40 and the grille 30 can affect the swing range of the grille 30 in front of the air outlet 11, that is, affect the space required for the grille 30 to rotate, which will directly affect the size of the indoor unit.

[0066] In one alternative embodiment, the rotation shaft 40 is located at or near the center of the grille 30 in the left-right direction. With the air outlet 11 closed, the rotation shaft 40 is located at or near the center of the grille 30 in the front-back direction.

[0067] In this embodiment, the rotating shaft 40 is located in the middle of the grille 30, which can effectively reduce the space required for the grille 30 to rotate, making the layout of the indoor unit more compact and reasonable, and effectively reducing the size of the indoor unit.

[0068] It should be noted that while the position of the rotation shaft 40 remains unchanged, the reference frame changes according to the rotation of the grille 30. Specifically, in the first open state of the air outlet 11, the rotation shaft 40 is located at or near the center of the grille 30 in the left-right direction. In the closed state of the air outlet 11, the grille 30 rotates 90° clockwise or counterclockwise around the rotation shaft 40; at this time, the rotation shaft 40 is located at or near the center of the grille 30 in the front-back direction.

[0069] In another alternative embodiment, when the grille 30 is rotated to the point where the grille surface 32 faces outward, the rotation shaft 40 is located on or near any side of the grille 30 in the left-right direction.

[0070] Optionally, while the grille 30 rotates around the rotating shaft 40, the rotating shaft 40 can also rotate along a set trajectory. However, the initial position of the rotating shaft 40, the position after swinging, and the left and right directions of the grille 30 need to be on the same horizontal line to ensure that the grille 30 always stays in the middle position of the air outlet 11 and to ensure that the distance between the two sides of the grille 30 and the sliding door 20 is as consistent as possible, so that the air outlet on both sides of the grille 30 is uniform.

[0071] This application embodiment is illustrated using the example of the rotating shaft 40 being located in the middle of the grille 30.

[0072] In one alternative embodiment of this application, a structure for a grille 30 is provided.

[0073] Optionally, refer to Figures 3-8 The grille 30 includes a frame 34 and multiple ribs 35 disposed within the frame 34, the multiple ribs 35 forming at least one air guide channel 33. The at least one air guide channel 33 includes an inclined air guide channel 331, the inclined air guide channel 331 intersecting the first plane at an inclination.

[0074] In this embodiment, multiple ribs 35 extend vertically and are spaced horizontally, with the spacing between adjacent ribs 35 forming the air guide channel 33 of the grille 30.

[0075] In this embodiment, by reasonably arranging the angles of the ribs 35 relative to the first plane (the plane where the air outlet 11 is located), the orientation of the inlet and outlet of the air guide channel 33 can be adjusted, so that the multiple ribs 35 of the grille 30 can at least construct an inclined air guide channel 331. Thus, the airflow blowing out of the air outlet 11 can first contact the grille surface 32 of the grille 30 near the outlet of the air duct 15, then enter through the inlet of the air guide channel 33, and then blow out along the inclined air guide channel 331 from the outlet of the air guide channel 33. By changing the airflow direction at the air outlet 11 through the inclined air guide channel 331, the airflow can be guided towards the inclined direction, thereby enabling the grille 30 to achieve a lateral air expansion effect or a central air concentration effect.

[0076] Optionally, in scenarios where users need to expand airflow to both sides, the grille 30 can also be controlled to swing within a certain angle range, which is 0° (inclusive) to 90° (exclusive), thereby increasing the airflow range of the grille 30 as needed.

[0077] Additionally, it should be noted that the inlet and outlet of the air guide channel 33 defined in this embodiment do not change with the rotation of the grille 30. The inlet of the air guide channel 33 always refers to the opening on the side of the air duct 15 constructed with multiple ribs 35, through which the airflow at the outlet 11 flows into the air guide channel 33; the outlet of the air guide channel 33 always refers to the opening on the side of the air duct 15 constructed with multiple ribs 35, through which the airflow flows out. Therefore, the tilt direction of the air guide channel 33 can be set as needed to guide the airflow, thereby changing the direction of the blown airflow and enabling the grille 30 to have an air-expanding or air-concentrating effect, thus improving the multi-scenario adaptability of the indoor unit.

[0078] In one alternative embodiment, refer to Figure 5 With the grille surface 32 of the grille 30 partially blocking the air outlet 11, the inclined air guide channel 331 slopes outward from the center of the air outlet 11 along the front-back direction of the grille 30. In other words, the end of the inclined air guide channel 331 that is relatively far from the main housing 12 is positioned further outward in the left-right direction compared to the end that is closer to the main housing 12.

[0079] Therefore, the inclined air guide channel 331 here can diffuse the airflow to both sides of the indoor unit and can serve as an air expansion channel. The airflow at the air outlet 11 passes through the air expansion channel and can produce the effect of diffusing to both sides, thereby increasing the air supply range.

[0080] In another alternative embodiment, refer to Figure 6With the grille surface 32 of the grille 30 partially blocking the air outlet 11, the inclined air guide channel 331 slopes from both sides of the air outlet 11 toward the center along the front-back direction of the grille 30. In other words, the inclined air guide channel 331 is positioned further inward in the left-right direction than the end of the inclined air guide channel 331 that is relatively far from the main housing 12.

[0081] Therefore, the inclined air guide channel 331 here can concentrate the airflow towards the center of the air outlet 11, and can serve as an air gathering channel. When the airflow at the air outlet 11 passes through the air gathering channel, it can produce the effect of converging towards the center, which can be adapted to narrow spaces or long-distance fixed-point air supply scenarios and improve the accuracy of air supply.

[0082] Optionally, refer to Figure 4 The grille 30 includes a first region A1 and a second region A2 located on both sides of the first region A1 in a left-right direction. An inclined air guide channel 331 is disposed in the second region A2. The air guide channel 33 includes a straight air guide channel 332 located in the first region A1, and the ribs 35 of the straight air guide channel 332 are perpendicular to the first plane. The extending direction of the ribs 35 of the inclined air guide channel 331 intersects the first plane at an incline.

[0083] In this embodiment, since the plane of the straight air guide channel 332 and the air outlet 11 is perpendicular, the direction of the airflow from the air outlet 11 is hardly changed, the resistance to the airflow blown out from the air outlet 11 is small, and the airflow can move forward a longer distance, thereby achieving long-distance precise air delivery.

[0084] In this embodiment, a grille 30 can integrate an inclined air guide channel 331 and a straight air guide channel 332. Furthermore, the grille 30 is divided into sections: a first section A1 in the center of the grille 30 is configured as a straight air guide channel 332, and second sections A2 on both sides of the grille 30 are configured as inclined air guide channels 331. By changing the inclination direction of the inclined air guide channel 331 in the second section A2, its airflow effect can be superimposed with that of the straight air guide channel 332 in the first section A1, resulting in a richer airflow effect and thus improving the multi-scenario adaptability of the indoor unit.

[0085] For example, when the inclined air guide channels 331 on both sides of the grille 30 are air expansion channels, they can achieve the dual effects of long-distance air delivery and lateral air expansion. When the inclined air guide channels 331 on both sides of the grille 30 are air gathering channels, the airflow on both sides converges towards the center. The converged airflow and the airflow blown out along the straight air guide channel 332 are superimposed, which can achieve more precise air delivery over a longer distance compared to the single straight air guide channel 332, and can further enhance the grille 30's ability to adapt to different scenarios.

[0086] Optionally, the ribs 35 of the first region A1 are arranged perpendicular to the first plane, so that the ribs 35 in the first region A1 form a straight air guide channel 332. The ribs 35 of the second region A2 are arranged at an angle to the first plane, so that the ribs 35 in the second region A2 form an inclined air guide channel 331.

[0087] Optionally, refer to Figure 4 The inclined air guide channels 331 in the two second zones A2 are arranged symmetrically with respect to the center line of the grille 30. This design ensures that the airflow speed and feel on both sides of the air conditioner remain highly consistent, avoiding an unbalanced experience of strong or weak airflow on one side.

[0088] Optionally, refer to Figures 4-6 The grille surface 32 of the grille 30 includes a first grille surface 321 and a second grille surface 322. When the grille 30 is rotated to 0° relative to the first plane, the first grille surface 321 is close to the outlet of the air duct 15, and the inclined air guide channel 331 is inclined to both sides from the center of the air outlet 11. Thus, the inclined air guide channel 331 here serves as an air expansion channel, which can further enhance the air expansion effect of the grille 30.

[0089] With the grille 30 rotated 180° relative to the first plane, the second grille surface 322 is close to the outlet of the air duct 15, and the inclined air guide channel 331 is inclined from both sides of the air outlet 11 towards the center. Thus, the inclined air guide channel 331 here acts as an air gathering channel, which can further enhance the air gathering effect of the grille 30.

[0090] This application embodiment can switch between different air outlet effects by controlling the rotation angle of the grille 30, thereby enabling quick and convenient switching between different air supply effects to meet the needs of different usage scenarios.

[0091] Optionally, the projection of the grille 30 in the horizontal plane is arc-shaped, that is, the grille 30 has an arc-shaped structure that curves in the front-to-back direction. When the first grille surface 321 away from the air duct 15 is concave, the second grille surface 322 near the air duct 15 is convex.

[0092] In this embodiment, the grille 30 is configured as an arc-shaped structure that curves along the front-to-back direction, which can further enhance the air gathering and expanding effect of the grille 30. Furthermore, configuring the grille 30 as an arc-shaped structure that curves along the front-to-back direction also allows the grille surface 32 of the grille 30, especially the second grille surface 322, to continuously transition with the outer surface of the sliding door 20 in the second open state of the air outlet 11, thereby improving the overall consistency and aesthetic appearance of the indoor unit.

[0093] The horizontal plane in this embodiment is perpendicular to the first plane.

[0094] In another alternative embodiment, the inclined air guide channels 331 constructed in the second area A2 on both sides of the grille 30 can also be inclined to the same side, which can achieve the effect of long-distance precise air delivery and unilateral air expansion, and can further expand the application scenarios of the indoor unit.

[0095] Furthermore, the inclined air guide channels 331 constructed in the second regions A2 on both sides can have the same or different inclination angles relative to the first plane. The ribs 35 in each second region A2 can also have the same or different inclination angles relative to the first plane; this application does not impose specific limitations. This embodiment is illustrated by taking as an example where the inclined air guide channels 331 in the second regions A2 on both sides are symmetrically arranged along the centerline of the grille 30, and each inclined air guide channel 331 has the same angle with the first plane.

[0096] Optionally, in this embodiment of the application, the included angle between the rib 35 and the first plane is in the range of 60° (inclusive) to 90° (exclusive).

[0097] Optionally, the widths of the first region A1 and the second region A2 can be set according to design needs or usage scenarios. In one optional embodiment, the sum of the widths of the two second regions A2 is equal to or approximately equal to the width of the first region A1, thereby achieving a balance in the airflow between the center and the sides and improving the user experience.

[0098] Optionally, refer to Figure 4 The ribs 35 of the grille 30 are arranged in alternating lengths within the projection of the horizontal plane.

[0099] The multiple ribs 35 have different lengths along the front and back directions and are arranged alternately along the left and right directions of the grille 30. This facilitates the cutting and dispersion of the airflow at the air outlet 11, improves the gentle breeze effect of the grille 30, and makes the airflow diffusion more uniform.

[0100] Reference Figures 9-13 In another embodiment of this application, a different structure of the grille 30 is provided. The grille 30 of this embodiment is basically the same in structure as the grille 30 of the first embodiment described above, with the main difference being: Each rib 35 of the grille 30 is set at an angle to the first plane, and the air guide channel 33 constructed by the grille 30 includes an inclined air guide channel 331. The inclined air guide channel 331 is arranged symmetrically with respect to the center line of the grille 30.

[0101] In this embodiment, the multiple air guide channels 33 constructed by the grille 30 are all inclined air guide channels 331. The inclined air guide channels 331 adopt a left-right symmetrical structure layout, which can balance the air supply speed and air feel on the left and right sides of the air conditioner, improve the uniformity of space temperature, avoid the situation of strong wind on one side and weak wind on one side, and thus improve the user experience.

[0102] Optionally, refer to Figure 9 From the middle position of the grille 30 to both sides, the angle between the ribs 35 and the first plane gradually decreases.

[0103] In this embodiment, the ribs 35 of the grille 30 adopt a gradient tilt angle design. This gradient tilt angle layout can guide the airflow to gradually diffuse to both sides, effectively widening the air supply coverage range and generating a wind expansion effect over a larger area on both sides, which can further improve the temperature uniformity in the space.

[0104] Optionally, the grille 30 in this embodiment can also be rotated 180° clockwise or counterclockwise to quickly switch between its air-expanding and air-concentrating postures, changing the direction of airflow and thus achieving either side-to-side air expansion or center-to-center air concentration to meet the needs of different usage scenarios. The specific states of the grille 30 before and after switching are the same as in the first embodiment, and will not be described again in this embodiment.

[0105] Reference Figures 14-17 In other alternative embodiments of this application, yet another structure of the grille 30 is provided.

[0106] Reference Figures 14-15 The grille 30 includes a first grille plate 36 and a second grille plate 37, which are parallel and spaced apart. When the air outlet 11 is open, the air outlet 11, the first grille plate 36, and the second grille plate 37 are connected in sequence.

[0107] In this application, the grille 30 adopts a double-layer grille structure, which significantly improves the strength and mechanical stability of the grille 30 compared to a single-layer grille structure, enhances the grille 30's ability to resist airflow impact, thereby reducing the risk of deformation of the grille 30 during long-term use and extending the service life of the grille 30.

[0108] Optionally, both the first grille 36 and the second grille 37 have air guide channels 33. When the air outlet 11 is open, the first grille 36 is close to the outlet of the air duct 15, and the second grille 37 is far away from the outlet of the air duct 15, so that the air outlet 11, the air guide channel 33 of the first grille 36 and the air guide channel 33 of the second grille 37 are connected in sequence.

[0109] In this embodiment, the structures of the first grille plate 36 and the second grille plate 37 can be completely identical. Taking the first grille plate 36 as an example, multiple ribs 35 of the first grille plate 36 extend in the vertical direction, and the multiple ribs 35 are arranged at intervals in the horizontal direction to form multiple spaced air guide channels 33.

[0110] Optionally, the grille 30 also includes two connecting plates 38, which are respectively connected to the two sides of the first grille plate 36 and the second grille plate 37; the connecting plates 38, the first grille plate 36 and the second grille plate 37 enclose to form an air guide duct with a cavity 39.

[0111] In this embodiment, the first grille plate 36 and the second grille plate 37 are spaced apart in the front-to-back direction and connected by a connecting plate 38, so that the grille 30 forms an air guide tube with an internal cavity 39. The airflow at the air outlet 11 flows out through the air guide channel 33 of the first grille plate 36, the cavity 39 and the air guide channel 33 of the second grille plate 37. The cavity 39 of the grille 30 has a certain effect of stabilizing the airflow and softening the wind.

[0112] Optionally, refer to Figures 16-17 With the air outlet 11 closed, the connecting plate 38 serves as the exterior surface 31.

[0113] In this embodiment, when the sliding door 20 is closed, the grille 30 can rotate 90° clockwise or counterclockwise. After rotation, the first grille plate 36 and the second grille plate 37 of the grille 30 are distributed in the left-right direction, and the two connecting plates 38 are distributed in the front-back direction. The air outlet 11 and the two air guide channels 33 cannot be connected, thus achieving the closure of the grille 30. The connecting plate 38 serves as the outer surface 31 of the grille 30, which can not only prevent dust from entering the air conditioner, reducing dust accumulation in the internal heat exchanger and lowering the probability of equipment failure and maintenance frequency, but also integrate the grille 30 with the sliding door 20, keeping the air conditioner's appearance neat and uniform in a closed state, thereby improving the overall aesthetics of the indoor unit and its compatibility with home furnishings.

[0114] Optionally, the connecting plate 38 is an arc-shaped plate. When the air outlet 11 is closed, the connecting plate 38 smoothly transitions to the outer surface of the sliding door 20.

[0115] In this embodiment, when the air outlet 11 is closed, the sliding door 20 overlaps with or approaches the sidewalls of the first grille plate 36 and the second grille plate 37, so that the connecting plate 38 and the sliding door 20 form a continuous display surface, keeping the indoor unit's appearance neat and uniform, thereby improving the overall aesthetics and home compatibility of the indoor unit.

[0116] Optionally, both air guide channels 33 can be straight air guide channels 332, inclined air guide channels 331, or a combination of straight air guide channels 15 and inclined air guide channels 331. This application only illustrates the case where both air guide channels 33 are straight air guide channels 332.

[0117] Reference Figures 18-21 In other alternative embodiments of this application, yet another structure of the grille 30 is provided.

[0118] The grille 30 includes a frame 34 and multiple ribs 35 disposed within the frame 34, the multiple ribs 35 forming at least one air guide channel 33. Along the front-to-back direction, the ribs 35 are perpendicular to a first plane, and the thickness of the multiple ribs 35 gradually changes, such that the constructed at least one air guide channel 33 includes a variable diameter channel 333. The first plane is the plane where the air outlet 11 is located.

[0119] In this embodiment, by changing the thickness of each rib 35 along the front-back direction, the rib 35 is designed as a rib with a variable cross-section, so that the area of ​​the inlet of the air guide channel 33 near the outlet of the air duct 15 is different from the area of ​​the outlet of the air guide channel 33 far from the outlet of the air duct 15.

[0120] Optionally, the projection of the ribs 35 in the horizontal plane gradually transitions into a trapezoidal shape, thereby constructing a gradually transitioning trapezoidal air guide channel 33 by multiple ribs 35.

[0121] When the air conditioner is in operation, if the area of ​​the inlet of the air guide channel 33 is smaller than the area of ​​the outlet of the air guide channel 33, the air guide channel 33 can form an open channel similar to a trumpet to increase the air outlet range and achieve the air expansion effect; if the area of ​​the inlet of the air guide channel 33 is larger than the area of ​​the outlet of the air guide channel 33, the air guide channel 33 can form an inward-facing converging channel to achieve the air gathering effect.

[0122] Reference Figures 19-20 In this embodiment of the application, the grille 30 can also be rotated 180° to change the area ratio of the inlet and outlet of the air guide channel 33, thereby switching between the air expansion effect and the air concentration effect.

[0123] Optionally, the variable diameter channel 333 can be provided only on both sides of the grille 30 in the left-right direction, and the variable diameter channel 333 is symmetrically arranged with respect to the center line of the grille 30. The center of the grille 30 is provided with air guide channels with equal cross-sections at both ends, so that the airflow can be blown out in a direction perpendicular to the first plane, achieving the dual effects of long-distance precise air delivery and lateral air expansion, or the superposition effect of long-distance precise air delivery and central air concentration.

[0124] Optionally, the grille 30 may only have variable diameter channels 333, and the variable diameter channels 333 are symmetrically arranged with respect to the center line of the grille 30 to achieve a uniform air expansion or air concentration effect on both sides. This application embodiment is only described using the grille 30 with symmetrical variable diameter channels 333 as an example.

[0125] Optionally, refer to Figure 18 and Figure 21The sidewall of the frame 34 protrudes from the grille surface 32 on any side of the grille 30, widening the outer surface 31 of the grille 30 compared to the three embodiments described above. This reduces the gap between the grille 30 and the sliding door 20 when the sliding door 20 is closed, thus reducing the entry of external dust.

[0126] Optionally, refer to Figures 5-21 The indoor unit of this application also includes at least two sets of air guide plates 50, which are arranged at intervals in the left and right directions. The grille 30 is located in front of the air guide plates 50. The airflow blown out along the air duct 15 passes through the gap formed by the two adjacent air guide plates 50 to reach the grille 30 in front of the air outlet 11, and then blows out from the air guide channel 33 of the grille 30.

[0127] Optionally, at least two sets of air guide vanes 50 are rotatably disposed within the air outlet 11. When the air outlet 11 is closed, the at least two sets of air guide vanes 50 overlap sequentially along the left and right sides; when the air outlet 11 is open, the at least two sets of air guide vanes 50 are spaced apart along the left and right directions.

[0128] In this embodiment of the application, when the sliding door 20 is closed, at least two sets of air guide plates 50 can rotate to the same side, so that at least two sets of air guide plates 50 are stacked in sequence, which can shorten the space occupied by the air guide plates 50 in the front-back direction.

[0129] After the indoor unit is started, the user can set the air guide plate 50 to be positioned at a preset angle, or control the air guide plate 50 to swing back and forth within a certain angle range, so as to achieve the beneficial effects of uniform air output, ensuring uniform mixing of indoor hot and cold air and expanding the air output range.

[0130] Optionally, each set of air guide vanes 50 can independently swing left and right. This allows at least two sets of air guide vanes 50 to be fixed at a preset angle or swing left and right to deliver air according to the user's air supply needs. For example, at least two sets of air guide vanes 50 can be fixed and both inclined to intersect the first plane, thus forming parallel air supply channels that intersect the first plane to achieve lateral air supply; forming outward V-shaped air supply channels with one end near the grille 30 pointing to both sides of the grille 30 to achieve lateral air expansion; or forming inward V-shaped air supply channels with one end near the grille 30 pointing to the center of the grille 30 to achieve central air concentration. Another example is controlling at least one set of air guide vanes 50 to swing left and right to deliver air, while at least one other set of air guide vanes 50 is fixed at a preset angle. This expands the range of air supply scenarios and enhances the multi-scenario adaptability of the indoor unit.

[0131] Optionally, the air guide plate 50 is provided with a first through hole (not shown in the figure), so that part of the airflow entering the air supply channel passes through the first through hole to achieve a gentle breeze effect. For example, when at least two sets of air guide plates 50 are fixed and form an inward-pointing air supply channel, part of the airflow blown out of the air duct passes through the inward-pointing air supply channel to achieve a wind-gathering effect, and part of the airflow passes through the first through hole on at least two sets of air guide plates 50 to achieve a gentle breeze effect on both sides, so as to further expand the air supply scenario.

[0132] Continue to refer to Figures 5-21 The indoor unit of this application embodiment also includes up-and-down sweeping blades 80 disposed within the air duct 15 and located behind the air guide plate 50. The up-and-down sweeping blades 80 include at least two sets for swinging up and down. The at least two sets of up-and-down sweeping blades 80 are arranged at intervals along the vertical direction. Each set of up-and-down sweeping blades 80 swings up and down independently, and multiple up-and-down sweeping blades 80 in each set swing up and down synchronously. Therefore, according to the user-defined air supply requirements, at least two sets of up-and-down sweeping blades 80 can be controlled to be stationary at a preset angle or swing up and down to supply air, meeting the needs of various air supply scenarios. The at least two sets of up-and-down sweeping blades 80 can also cooperate with various movement patterns of the at least two sets of air guide plates 50 to meet diverse air supply needs, further expanding the air supply scenarios of the indoor unit and improving its multi-scenario adaptability.

[0133] Optionally, refer to Figures 5-7 , Figures 11-13 as well as Figures 16-17 At least one set of upper and lower sweeping blades 80 has a second through hole 81, which is used to cut the clustered airflow in the air duct into multiple small airflows to achieve a gentle breeze effect. Thus, it can achieve a gentle breeze effect alone or in combination with the air guide plate 50, expanding the air supply scenarios of the indoor unit.

[0134] Based on the same inventive concept, this application provides an air conditioner including the indoor unit of the above embodiments.

[0135] The air conditioner of this application embodiment can achieve all the beneficial effects of the indoor unit of the above embodiments, and will not be described again in this application embodiment.

[0136] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0137] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0138] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0139] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0140] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. An indoor unit, characterized in that, include: Housing assembly with air outlet; The sliding door has two doors, which are spaced apart in the left-right direction. The sliding doors are slidable relative to the housing assembly to open or at least partially close the air outlet. An air guide is rotatably disposed at the air outlet, and the air guide is located between the two sliding doors; when the air outlet is closed, the air guide rotates to partially block the air outlet, forming an exposed surface of the sliding door.

2. The indoor unit according to claim 1, characterized in that, The air guide is a grille. When the air outlet is closed, the grille rotates to the side wall of the grille to partially block the air outlet, forming an exposed surface on the sliding door. Alternatively, the air guide includes multiple blades, which rotate to partially block the air outlet when the air outlet is closed, forming an exposed surface on the sliding door.

3. The indoor unit according to claim 2, characterized in that, The air guide is a grille; when the air outlet is closed, the outer surface of the grille is sandwiched between the two sliding doors to form a continuous transition display surface.

4. The indoor unit according to claim 3, characterized in that, The grille also includes a grille surface with air guiding channels; When the air outlet is open, the grille rotates to partially block the air outlet, and the air guide channel is connected to the air outlet.

5. The indoor unit according to claim 4, characterized in that, When the air outlet is open, the rotation angle of the grille relative to the first plane includes 0° to 180°, and the grille surface of the grille partially blocks the air outlet. When the air outlet is closed, the rotation angle of the grille relative to the first plane includes 90°, and the outer surface of the grille partially obscures the air outlet; the first plane is the plane where the air outlet is located.

6. The indoor unit according to claim 5, characterized in that, The grille includes a frame and multiple ribs disposed within the frame, the multiple ribs forming at least one air guiding channel; At least one of the air guide channels includes an inclined air guide channel, which intersects the first plane at an angle.

7. The indoor unit according to claim 6, characterized in that, With the air outlet partially obscured by the grille surface, the inclined air guide channel is inclined from the center of the air outlet to both sides along the front-back direction of the grille. Alternatively, with the grille surface partially obscuring the air outlet, the inclined air guide channel is inclined from both sides of the air outlet toward the center along the front-back direction of the grille.

8. The indoor unit according to claim 7, characterized in that, The grille includes a first region and a second region located on both sides of the first region in the left-right direction; The air guide channel includes a straight air guide channel located in the first region, and the ribs of the straight air guide channel are perpendicular to the first plane; The inclined air guide channel is located in the second region, and the extension direction of the ribs of the inclined air guide channel intersects the first plane at an inclination.

9. The indoor unit according to claim 8, characterized in that, The inclined air guide channels in the two second regions are arranged symmetrically with respect to the center line of the grille.

10. The indoor unit according to claim 7, characterized in that, Each of the ribs is set at an angle to the first plane, and the air guiding channel of the grid structure includes the inclined air guiding channel; the inclined air guiding channel is arranged symmetrically to the left and right with respect to the center line of the grid.

11. The indoor unit according to claim 10, characterized in that, From the center of the grille toward both sides, the angle between the ribs and the first plane gradually decreases.

12. The indoor unit according to claim 7, characterized in that, The housing assembly also includes an air duct, the outlet of which is located behind the air outlet and communicates with the air outlet; The grid surface includes a first grid surface and a second grid surface that are disposed opposite to each other; When the grille is rotated to a position of 0° relative to the first plane, the first grille surface of the grille is close to the outlet of the air duct, and the inclined air guide channel is inclined from the center of the air outlet to both sides; When the grille is rotated to a position of 180° relative to the first plane, the second grille surface of the grille is close to the outlet of the air duct, and the inclined air guide channel is inclined from both sides of the air outlet towards the center.

13. The indoor unit according to claim 12, characterized in that, The projection of the grille in the horizontal plane is arc-shaped, with the first grille surface being concave and the second grille surface being convex.

14. The indoor unit according to claim 2, characterized in that, The ribs of the grille are arranged in alternating lengths within the projection of the horizontal plane.

15. The indoor unit according to claim 5, characterized in that, The grid includes a first grid plate and a second grid plate, the first grid plate and the second grid plate being parallel and spaced apart; When the air outlet is open, the air outlet, the first grille, and the second grille are connected in sequence.

16. The indoor unit according to claim 15, characterized in that, The grid also includes two connecting plates, which are respectively connected to both sides of the first grid plate and the second grid plate; The connecting plate, the first grid plate, and the second grid plate together form a duct with a cavity.

17. The indoor unit according to claim 16, characterized in that, When the air outlet is closed, the connecting plate serves as the exterior surface.

18. The indoor unit according to claim 17, characterized in that, The connecting plate is an arc-shaped plate; When the air outlet is closed, the connecting plate smoothly transitions to the outer surface of the sliding door.

19. The indoor unit according to claim 5, characterized in that, The grille includes a frame and multiple ribs disposed within the frame, the multiple ribs forming at least one air guiding channel; Along the front-to-back direction, the ribs are perpendicular to the first plane, and the thickness of the ribs gradually changes, so that at least one air guide channel in the structure includes a variable diameter channel; the first plane is the surface where the air outlet is located.

20. The indoor unit according to claim 19, characterized in that, The sidewalls of the frame protrude from the grid surface on either side of the grid.

21. The indoor unit according to claim 2, characterized in that, The air guide includes multiple blades, which are disposed on the dustproof net at the air outlet and located inside the dustproof net. When the air outlet is open, the multiple blades rotate to the open portion of the air outlet.

22. An air conditioner, characterized in that, Including the indoor unit as described in any one of claims 1-21.

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