Wall-mounted air conditioner indoor unit and air conditioning system

Abstract

The embodiment of the utility model provides a wall-mounted air conditioner indoor unit and an air conditioning system. The wall-mounted air conditioner indoor unit comprises a machine shell, an air duct assembly and a limiting assembly. An upper air outlet duct located on the upper side and a lower air outlet duct located on the lower side are arranged in the machine shell. The air duct assembly comprises a rotary air duct structure and cross-flow fan blades. The rotary air duct structure comprises a rotary air duct wall and a volute tongue. The rotary air duct structure is rotatably arranged so as to be switched between a first position and a second position. At the first position, an outlet of an air outlet duct formed between the rotary air duct wall and the volute tongue faces the upper air outlet duct. And at the second position, the outlet of the air outlet duct formed between the rotary air duct wall and the volute tongue faces the lower air outlet duct. The limiting assembly is used for abutting against the rotary air duct structure so as to position the rotary air duct structure at the first position or the second position. According to the wall-mounted air conditioner indoor unit, the use comfort of a user is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning, and in particular to a wall-mounted air conditioner indoor unit and air conditioning system. Background Technology

[0002] Conventional wall-mounted air conditioner indoor units use a single air outlet structure, with the outlet located on the bottom side of the unit. Both cooling and heating air are blown out through this outlet. Because the outlet is located at the bottom of the unit, in cooling mode, the cold air can easily blow directly onto people, causing discomfort and potentially leading to air conditioning sickness over time. Even adjusting the angle of the air deflector to change the airflow direction cannot completely solve this problem.

[0003] It should be noted that the statements in this background section only provide background information relevant to this application and do not necessarily constitute prior art. Utility Model Content

[0004] This application provides a wall-mounted air conditioner indoor unit and an air conditioning system to improve user comfort.

[0005] The first aspect of this application provides a wall-mounted air conditioner indoor unit, comprising:

[0006] The casing contains an upper air outlet duct on the upper side and a lower air outlet duct on the lower side.

[0007] The air duct assembly includes a rotating air duct structure and a cross-flow fan blade. The rotating air duct structure includes a rotating air duct wall and a volute tongue for discharging air to the cross-flow fan blade. The rotating air duct structure rotates to switch between a first position and a second position. In the first position, the outlet of the air duct formed between the rotating air duct wall and the volute tongue faces an upper air duct; in the second position, the outlet of the air duct formed between the rotating air duct wall and the volute tongue faces a lower air duct.

[0008] A limiting component is used to abut against the rotating air duct structure to position the rotating air duct structure in a first position or a second position, respectively.

[0009] In some embodiments, the upper air outlet duct includes a first upper air outlet wall and a second upper air outlet wall located on the front and rear sides respectively. The limiting component includes a first limiting rib disposed on the first upper air outlet wall. The first limiting rib is inclined and intersectingly disposed on the inner surface of the first upper air outlet wall to form a first slot with the inner surface of the first upper air outlet wall. When the rotating air duct structure rotates to the first position around the first direction, the end of the rotating air duct wall extends into the first slot to prevent the rotating air duct structure from continuing to rotate along the first direction.

[0010] In some embodiments, the inner surface of the first upper air outlet wall includes a first sealing surface, and in a first position, the outer wall surface of the rotating air duct wall is in contact with the first sealing surface.

[0011] In some embodiments, the inner surface of the first upper air outlet wall includes a first guide surface located on the side of the first sealing surface away from the air outlet end. In the first position, air is discharged from the upper air outlet duct, and in the direction of airflow, the distance between the first guide surface and the rotating air duct wall gradually decreases.

[0012] In some embodiments, the upper air outlet duct includes a first upper air outlet wall and a second upper air outlet wall located on the front and rear sides respectively. The limiting component includes a first engaging step disposed at the end of the first upper air outlet wall and a second engaging step disposed at the end of the volute tongue. In a first position, the second engaging step of the volute tongue engages with the first engaging step to prevent the rotating air duct structure from continuing to rotate in the first direction.

[0013] In some embodiments, the limiting component further includes a second limiting rib disposed on the outer wall surface of the volute tongue and a third limiting rib disposed on the housing. The third limiting rib has a locking surface. In a first position, the second limiting rib abuts against the locking surface to prevent the rotating air duct structure from continuing to rotate.

[0014] In some embodiments, the wall-mounted air conditioner indoor unit further includes an air duct baffle disposed within the housing and rotatable relative to the housing, wherein the air duct baffle is located above the air duct assembly; or, the air duct baffle is located below the air duct assembly.

[0015] In some embodiments, the upper air outlet duct includes a first upper air outlet wall and a second upper air outlet wall located on the front and rear sides respectively. When the rotating air duct structure is in the first position, air is discharged from the upper air outlet duct, and the air duct baffle rotates so that both ends of the air duct baffle abut against the volute tongue and the first upper air outlet wall respectively to form an air duct surface. When the rotating air duct structure is in the second position, air is discharged from the lower air outlet duct, and the air duct baffle rotates so that the air duct baffle abuts against the second upper air outlet wall and covers the air outlet surface of the upper air outlet duct to block the airflow.

[0016] In some embodiments, the lower air outlet duct includes a first lower air outlet wall and a second lower air outlet wall located on the front and rear sides respectively. When the rotating air outlet structure is in the first position, the upper air outlet duct discharges air, and the air outlet baffle rotates so that the air outlet baffle abuts against the second lower air outlet wall and covers the air outlet surface of the lower air outlet duct to block the airflow. When the rotating air outlet structure is in the second position, the lower air outlet duct discharges air, and the air outlet baffle rotates so that both ends of the air outlet baffle abut against the volute tongue and the first lower air outlet wall respectively to form an air outlet surface.

[0017] In some embodiments, the limiting component includes a fourth limiting rib disposed on the outer wall of the rotating air duct wall and a locking plate disposed on the second lower air outlet wall. The locking plate includes a second locking groove. When the rotating air duct structure rotates around the second direction to the second position, the fourth limiting rib is locked in the second locking groove to prevent the rotating air duct structure from continuing to rotate.

[0018] In some embodiments, the card plate includes a second guide surface and a third guide surface respectively disposed at both ends of the second card slot.

[0019] In some embodiments, the limiting component further includes a second limiting rib disposed on the outer wall surface of the volute tongue and a fifth limiting rib disposed on the outer wall surface of the air duct baffle. In the second position, the fifth limiting rib abuts against the second limiting rib to prevent the air duct baffle from continuing to rotate.

[0020] In some embodiments, the inner surface of the second lower air outlet wall includes a second sealing surface, and in a second position, the outer wall surface of the rotating air duct wall is in contact with the second sealing surface.

[0021] A second aspect of this application provides an air conditioning system including the aforementioned wall-mounted air conditioner indoor unit.

[0022] Based on the technical solution of this application embodiment, a wall-mounted air conditioner indoor unit includes a casing, an air duct assembly, and a limiting assembly. An upper air outlet duct is disposed within the casing, located on the upper side, and a lower air outlet duct is disposed on the lower side. The air duct assembly includes a rotating air duct structure and a cross-flow fan blade. The rotating air duct structure includes a rotating air duct wall and a volute. The rotating air duct structure is rotatably configured to switch between a first position and a second position. In the first position, the outlet of the air outlet duct formed between the rotating air duct wall and the volute faces the upper air outlet duct. In the second position, the outlet of the air outlet duct formed between the rotating air duct wall and the volute faces the lower air outlet duct. The limiting assembly is used to abut against the rotating air duct structure to position the rotating air duct structure in the first position or the second position, respectively. The wall-mounted air conditioner indoor unit of this application embodiment has an upper air outlet duct on the upper side and a lower air outlet duct on the lower side inside the casing. By controlling the rotation of the rotating air duct structure to switch between a first position and a second position, the outlet of the rotating air duct structure faces either the upper or lower air outlet duct. In cooling mode, air is discharged through the upper air outlet duct to avoid direct cold air blowing, while in heating mode, air is discharged through the lower air outlet duct to quickly blow hot air to the ground for rapid heating, thereby improving user comfort. Furthermore, the air conditioner indoor unit of this application embodiment uses a limiting component to abut against the rotating air duct structure, positioning the rotating air duct structure in either the first or second position, thereby improving the positioning accuracy of the rotating air duct structure and ensuring accurate duct alignment, thus enhancing the reliability of the air conditioner.

[0023] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the internal structure of a wall-mounted air conditioner indoor unit in the off mode according to some embodiments of this application.

[0026] Figure 2 for Figure 1 A three-dimensional structural diagram of the rotating air duct structure at one angle.

[0027] Figure 3 for Figure 1 A three-dimensional structural diagram of the rotating air duct structure from another angle.

[0028] Figure 4 This is a schematic diagram of the internal structure of the indoor unit of a wall-mounted air conditioner in cooling mode according to some embodiments of this application.

[0029] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part M in the middle.

[0030] Figure 6 for Figure 5 A schematic diagram of the structure of the first upper air outlet wall.

[0031] Figure 7 for Figure 4 A magnified schematic diagram of the N-section.

[0032] Figure 8 for Figure 7 A schematic diagram of the structure of the second upper air outlet wall.

[0033] Figure 9 This is a schematic diagram of the internal structure of a wall-mounted air conditioner indoor unit in heating mode according to some embodiments of this application.

[0034] Figure 10 for Figure 9 A magnified schematic diagram of the P section.

[0035] Figure 11 for Figure 10 A schematic diagram of the structure of the middle card plate.

[0036] Figure 12 for Figure 9 A partially enlarged structural diagram of the Q section.

[0037] Figure 13 yes Figure 12 A schematic diagram of the structure of the central ventilation duct baffle.

[0038] Figure label:

[0039] 1. Housing; 11. Rear panel; 12. Top panel; 13. Bottom panel; 14. First limiting rib; 145. First slot; 15. First upper air outlet wall; 151. First guide surface; 152. First sealing surface; 16. Second upper air outlet wall; 161. First snap-fit ​​step; 17. First lower air outlet wall; 18. Second lower air outlet wall; 184. Second sealing surface;

[0040] 2. Duct assembly; 21. Rotating duct structure; 211. Rotating duct wall; 2111. Tip; 2112. Fourth limiting rib; 2113. Reinforcing rib; 212. Volute tongue; 2121. Second limiting rib; 2122. Second snap-fit ​​step; 22. Cross-flow fan blade; 23. Turntable;

[0041] 3. Front panel;

[0042] 4. Heat exchanger;

[0043] 5. Air duct baffle; 51. Fifth limiting rib; 511. Third sealing surface; 512. Fourth sealing surface;

[0044] 6. First air guide plate;

[0045] 7. Second air guide plate;

[0046] 8. Third limiting rib; 81. Stopping surface;

[0047] 9. Card plate; 91. Second card slot; 92. Second guide surface; 93. Third guide surface. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0049] 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.

[0050] For ease of description, spatial relative terms such as "above," "over," "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 "above" 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, and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] Wall-mounted air conditioner indoor units connect to outdoor units to regulate indoor air temperature by cooling or heating. The indoor unit includes a heat exchanger; in cooling mode, the heat exchanger acts as an evaporator, absorbing heat from the air to cool; in heating mode, the heat exchanger acts as a condenser, releasing heat to the air to heat. Wall-mounted air conditioner indoor units are typically installed on a wall, near the ceiling.

[0052] In related technologies, wall-mounted air conditioner indoor units, whether in heating or cooling mode, vent air through an air outlet located at the bottom of the unit. This means that in cooling mode, the cold air can easily blow directly onto people, causing discomfort, and prolonged exposure to cold air can easily lead to air conditioning sickness.

[0053] To address the aforementioned issues, this application proposes a wall-mounted air conditioner indoor unit. This indoor unit includes an upper air outlet duct on the upper side and a lower air outlet duct on the lower side. By controlling the rotation of the rotating air duct structure, the outlet of the air outlet duct formed between the rotating air duct wall and the volute tongue is directed towards either the upper or lower air outlet duct. In cooling mode, air is selected to exit from the upper air outlet duct, thereby avoiding direct cold air blowing and improving user comfort.

[0054] The following is for reference. Figures 1 to 13 The structure and working process of the wall-mounted air conditioner indoor unit of some embodiments of this application will be described in detail.

[0055] refer to Figures 1 to 9 The wall-mounted air conditioner indoor unit of some embodiments of this application includes a housing 1, an air duct assembly 2, and a limiting assembly. The housing 1 has an upper air outlet duct located on the upper side and a lower air outlet duct located on the lower side. The air duct assembly 2 includes a rotating air duct structure 21 and a cross-flow fan blade 22. The rotating air duct structure 21 includes a rotating air duct wall 211 and a volute tongue 212. The rotating air duct structure 21 is rotatably configured to switch between a first position and a second position. In the first position, the outlet of the air outlet duct formed between the rotating air duct wall 211 and the volute tongue 212 faces the upper air outlet duct. In the second position, the outlet of the air outlet duct formed between the rotating air duct wall 211 and the volute tongue 212 faces the lower air outlet duct. The limiting assembly is used to abut against the rotating air duct structure 21 to position the rotating air duct structure 21 in the first position or the second position, respectively.

[0056] The wall-mounted air conditioner indoor unit of this application embodiment has an upper air outlet duct on the upper side and a lower air outlet duct on the lower side arranged in the casing 1. By controlling the rotation of the rotating air duct structure 21, the rotating air duct structure 21 can switch between a first position and a second position, so that the outlet of the air duct of the rotating air duct structure 21 faces the upper air outlet duct or the lower air outlet duct. In cooling mode, air can be discharged through the upper air outlet duct to avoid direct cold air blowing, and in heating mode, air can be discharged through the lower air outlet duct to allow hot air to be quickly blown to the ground for rapid heating, thereby improving user comfort. Furthermore, the air conditioner indoor unit of this application embodiment has a limiting component for abutting against the rotating air duct structure 21 to position the rotating air duct structure 21 in the first position or the second position, thereby improving the positioning accuracy of the rotating air duct structure 21 and ensuring accurate air duct connection, thus improving the reliability of the air conditioner.

[0057] In some embodiments, the air duct assembly 2 further includes a turntable 23. A rotating air duct structure 21 is disposed on the turntable 23 to rotate under the drive of the turntable 23. Specifically, the axis of rotation of the turntable 23 is coaxially arranged with the axis of rotation of the cross-flow fan blade 22.

[0058] In some embodiments, such as Figure 4 , Figure 5 and Figure 6 As shown, the upper air outlet duct includes a first upper air outlet wall 15 and a second upper air outlet wall 16 located on the front and rear sides, respectively. The limiting assembly includes a first limiting rib 14 disposed on the first upper air outlet wall 15. The first limiting rib 14 is inclined and intersectingly disposed on the inner surface of the first upper air outlet wall 15 to form a first groove 145 between itself and the inner surface of the first upper air outlet wall 15. When the rotating air duct structure 21 rotates to a first position around a first direction, the end of the rotating air duct wall 211 extends into the first groove 145 to prevent the rotating air duct structure 21 from continuing to rotate along the first direction.

[0059] like Figure 4 As shown, the rotating air duct structure 21 rotates clockwise to reach... Figure 4 In the first position shown, the end of the rotating air duct wall 211 is attached to the first upper air outlet wall 15, and the volute tongue 212 is attached to the second upper air outlet wall 16, thereby connecting the air outlet duct between the rotating air duct wall 211 and the volute tongue 212 with the upper air outlet duct to achieve air outlet.

[0060] To improve the positional accuracy of the rotating air duct structure 21 when it rotates to the first position, after the rotating air duct wall 211 rotates clockwise to the first slot 145, the end of the rotating air duct wall 211 extends into the first slot 145, thus blocking the rotating air duct wall 211 and preventing it from continuing to rotate clockwise. Therefore, the setting of the first limiting rib 14 helps to ensure the positional accuracy of the rotating air duct wall 211. Furthermore, the first limiting rib 14 set on the first upper air outlet wall 15 can strengthen the structural strength of the first upper air outlet wall 15, which can effectively reduce the deformation of the first upper air outlet wall 15 under gravity due to its long extension in the height direction, thereby improving the sealing effect when the first upper air outlet wall 15 and the rotating air duct wall 211 are connected.

[0061] like Figure 5 As shown, the end of the rotating air duct wall 211 that extends into the first slot 145 is formed as a tip 2111. The inner wall of the first limiting rib 14 forms a limit on the tip 2111, especially limiting the radial deformation of the tip 2111 after it rotates into place, thus ensuring the accuracy of the rotation position.

[0062] To further ensure the airtightness of the duct surface, in some embodiments, such as Figure 4 and Figure 6 As shown, the inner surface of the first upper air outlet wall 15 includes a first sealing surface 152. In the first position, the outer wall surface of the rotating air duct wall 211 is in close contact with the first sealing surface 152. Figure 4As shown, when air is vented in cooling mode, the rotating air duct wall 211 overlaps the first upper air outlet wall 15 to form an air duct surface. The outer wall surface of the rotating air duct wall 211 is in contact with the first sealing surface 152 on the inner surface of the first upper air outlet wall 15 to achieve a sealing effect.

[0063] refer to Figure 4 , Figure 5 and Figure 6 In some embodiments, the inner surface of the first upper air outlet wall 15 includes a first guide surface 151 located on the side of the first sealing surface 152 away from the air outlet end. In the first position, air is discharged from the upper air outlet duct, and in the direction of airflow, the distance between the first guide surface 151 and the rotating air duct wall 211 gradually decreases. That is, if viewed against the direction of airflow, the distance between the first guide surface 151 and the rotating air duct wall 211 gradually increases, forming a flared structure. Thus, during the process of the rotating air duct wall 211 rotating clockwise to overlap the first upper air outlet wall 15, the first guide surface 151 guides the rotation of the rotating air duct wall 211, and importantly, guides the tip 2111 of the rotating air duct wall 211.

[0064] To further improve the reliability of limiting the rotation position of the rotating duct structure 21, the limiting component of this application embodiment not only limits the position of the rotating duct wall 211 at the first position, but also further limits the position of the volute tongue 212, thus forming a double limiting. Even if some structures fail, other structures can still play a limiting role, thereby improving the reliability of the limiting and thus improving the working reliability of the air conditioning indoor unit of this application embodiment.

[0065] refer to Figure 4 , Figure 7 and Figure 8 In some embodiments, the upper air outlet duct includes a first upper air outlet wall 15 and a second upper air outlet wall 16 located on the front and rear sides, respectively. The limiting component includes a first engaging step 161 disposed at the end of the second upper air outlet wall 16. For example... Figure 3 As shown, the end of the volute tongue 212 is provided with a second engaging step 2122. In the first position, the second engaging step 2122 of the volute tongue 212 engages with the first engaging step 161 to prevent the rotating air duct structure 21 from continuing to rotate in the first direction.

[0066] like Figure 7 As shown, the first engaging step 161 includes a step surface located downstream in the first direction. When the volute tongue 212 rotates around the first direction under the drive of the turntable 23, when the volute tongue 212 rotates to the first engaging step 161, the step surface of the first engaging step 161 will block the volute tongue 212, thereby preventing the volute tongue 212 from continuing to rotate and ensuring the positional accuracy of the volute tongue 212.

[0067] Furthermore, the first locking step 161 and the second locking step 2122 are joined together to form a smooth surface to ensure the sealing and integrity of the air duct surface of the upper air outlet.

[0068] In some embodiments, the limiting assembly further includes a second limiting rib 2121 disposed on the outer wall surface of the volute tongue 212 and a third limiting rib 8 disposed on the housing 1. The third limiting rib 8 has a locking surface 81. In a first position, the second limiting rib 2121 abuts against the locking surface to prevent the rotating air duct structure 21 from continuing to rotate. The provision of the second limiting rib 2121 can strengthen the structural strength of the first volute tongue 212, effectively reduce the deformation of the volute tongue 212, thereby improving the sealing effect when the volute tongue 212 and the second upper air outlet wall 16 are connected.

[0069] like Figure 4 As shown, a second lower air outlet wall 18 is connected to the back side (non-duct surface) of the second upper air outlet wall 16. A third limiting rib 8 is provided on the second lower air outlet wall 18. Figure 8 As shown, the third limiting rib 8 has a trapezoidal structure.

[0070] In some embodiments, reference Figure 4 The wall-mounted air conditioner indoor unit also includes an air duct baffle 5 disposed inside the housing 1 and rotatable relative to the housing 1. The air duct baffle 5 is located below the air duct assembly 2.

[0071] In some embodiments, reference Figure 4 The lower air outlet duct includes a first lower air outlet wall 17 and a second lower air outlet wall 18 located on the front and rear sides, respectively. The wall-mounted air conditioner indoor unit also includes an air duct baffle 5 disposed inside the casing 1 and rotatable relative to the casing 1. When the rotating air duct structure 21 is in the first position, air is discharged from the upper air outlet duct, and the air duct baffle 5 rotates so that the air duct baffle 5 abuts against the second lower air outlet wall 18 to block the airflow. When the rotating air duct structure 21 is in the second position, air is discharged from the lower air outlet duct, and the air duct baffle 5 rotates to abut against the volute tongue 212.

[0072] In cooling mode, air is vented from the upper air outlet, such as... Figure 4As shown, the airflow enters the casing 1 from the lower air inlet, passes through the heat exchanger 4, and then enters the cross-flow fan 22 through the air inlet duct at the lower end of the rotating air duct structure 21. It then flows out through the air outlet duct at the upper end of the rotating air duct structure 21 to the upper air outlet duct and exits through the air outlet at the top. In this embodiment, by setting an air duct baffle 5, in cooling mode, the air duct baffle 5 rotates so that it abuts against the second lower air outlet wall 18. Thus, after the airflow enters the casing and undergoes heat exchange with the heat exchanger 4, it can enter the air inlet duct of the rotating air duct structure 21 under the action of the cross-flow fan 22. The air duct baffle 5 blocks the lower air outlet duct, preventing airflow from flowing out and thus avoiding airflow loss. And as... Figure 9 As shown, in heating mode, the air duct baffle 5 rotates until both ends of the air duct baffle 5 abut against the volute tongue 212 and the first lower air outlet wall 17 respectively, thereby forming an air duct surface, ensuring the sealing and integrity of the air duct surface.

[0073] The indoor unit of the air conditioner in this embodiment of the application is equipped with a duct baffle 5 to block airflow and prevent airflow loss in the cooling mode, and to form a duct surface in the heating mode.

[0074] In some embodiments not shown in the accompanying drawings, the duct baffle is located above the duct assembly. The upper air outlet duct includes a first upper air outlet wall and a second upper air outlet wall located on the front and rear sides, respectively. When the rotating duct structure is in the first position, air is discharged from the upper air outlet duct, and the duct baffle rotates so that both ends of the duct baffle abut against the volute tongue and the first upper air outlet wall to form an air outlet surface; when the rotating duct structure is in the second position, air is discharged from the lower air outlet duct, and the duct baffle rotates so that the duct baffle abuts against the second upper air outlet wall and covers the air outlet surface of the upper air outlet duct to block the airflow.

[0075] In heating mode, air is discharged from the lower air outlet, and hot air flows within the air outlet. The air outlet baffle abuts against the second upper air outlet wall, improving the sealing performance of the airflow and thus preventing airflow from being discharged through the upper air outlet. Moreover, in heating mode, the dual blocking effect of the air outlet baffle and the first air guide plate effectively prevents condensation from occurring when the hot air inside the casing 1 exchanges heat with the cooler air outside the casing 1.

[0076] In order to limit the second position of the rotating air duct structure 21, such as Figure 9 and Figure 10 As shown, in some embodiments, the limiting component includes a fourth limiting rib 2112 disposed on the outer wall of the rotating air duct wall 211 and a retaining plate 9 disposed on the second lower air outlet wall 18. The retaining plate 9 includes a second retaining groove 91. When the rotating air duct structure 21 rotates to the second position in the second direction under the drive of the turntable 23, the fourth limiting rib 2112 engages in the second retaining groove 91 to prevent the rotating air duct structure 21 from continuing to rotate.

[0077] The rotating air duct wall 211 extends in the circumferential direction of the rotating air duct structure 21 and has a relatively long extension length. The fourth limiting rib 2112 is provided on it to strengthen its own strength and effectively reduce the deformation of the rotating air duct wall 211 under the action of gravity and other forces.

[0078] In some embodiments, the card plate 9 includes a second guide surface 92 disposed downstream of the second card slot 91 in a second direction and a third guide surface 93 disposed upstream to guide the fourth limiting rib 2112 into the second card slot 91 to avoid improper assembly.

[0079] like Figure 10 and Figure 11 As shown. In some embodiments, the inner surface of the second lower air outlet wall 18 includes a second sealing surface 184, and in a second position, the outer wall surface of the rotating air duct wall 211 is in contact with the second sealing surface 184. This provides a sealing effect, ensuring the airtightness of the air duct surface.

[0080] like Figure 12 As shown, in some embodiments, the limiting assembly further includes a second limiting rib 2121 disposed on the outer wall surface of the volute tongue 212 and a fifth limiting rib 51 disposed on the outer wall surface of the air duct baffle 5. In the second position, the fifth limiting rib 51 abuts against the second limiting rib 2121 to prevent the air duct baffle 5 from continuing to rotate.

[0081] In heating mode, after the rotating air duct structure 21 has rotated counterclockwise to its final position, the air duct baffle 5 is then controlled to rotate to... Figure 9 The overlapping positions are shown. For example... Figure 12 As shown, since the rotating air duct structure 21 rotates to its position first, that is, the volute tongue 212 reaches the set position first, and then the air duct baffle 5 is controlled to rotate, the second limiting rib 2121 provided on the volute tongue 212 forms a rotation limit on the air duct baffle 5. Specifically, the fifth limiting rib 51 on the air duct baffle 5 overlaps the second limiting rib 2121 to prevent the air duct baffle 5 from rotating too much.

[0082] Some embodiments of this application provide an air conditioning system including the above-described wall-mounted air conditioning indoor unit.

[0083] The following is based on Figures 1 to 13 The structure and working process of a wall-mounted air conditioner indoor unit according to a specific embodiment of this application will be described in detail.

[0084] like Figure 1 , Figure 4 and Figure 9 As shown, the wall-mounted air conditioner indoor unit of this embodiment includes a casing 1, an air duct assembly 2 disposed in the casing 1, a front panel 3, a heat exchanger 4, an air duct baffle 5, a first air guide plate 6, and a second air guide plate 7.

[0085] The casing 1 includes a rear panel 11, a top panel 12, and a bottom panel 13. The top panel 12 and the bottom panel 13 are spaced apart in the height direction Z. The rear panel 11 is located between the top panel 12 and the bottom panel 13, and the opposite surfaces of the rear panel 11 form an open end. The front panel 3 is located at the open end. That is, the front panel 3 and the rear panel 11 are spaced apart in the thickness direction Y. Here, "rear" refers to the position of the indoor unit of the wall-mounted air conditioner closer to the wall when it is installed on the wall, and "front" refers to the opposite side, that is, the side away from the wall. The front panel 3 is located on the front side. The length direction X of the casing 1 is perpendicular to the height direction Z and the thickness direction Y.

[0086] like Figure 1 As shown, the heat exchanger 4 and the air duct assembly 2 are both disposed within the casing 1 and arranged sequentially in the thickness direction Y. Specifically, the heat exchanger 4 is disposed on the front side, and the air duct assembly 2 is disposed on the rear side. The air duct assembly 2 includes a cross-flow fan blade 22 and a rotating air duct structure 21. The axis of the cross-flow fan blade 22 extends approximately along the length direction X of the casing 1. The rotating air duct structure 21 is disposed outside the cross-flow fan blade 22 and includes a rotating air duct wall 211 and a volute tongue 212 spaced apart in the circumferential direction. An air inlet duct and an air outlet duct are formed between the rotating air duct wall 211 and the volute tongue 212.

[0087] like Figure 1 and Figure 2 As shown, the rotating duct wall 211 and the volute tongue 212 are both mounted on the turntable 23 to rotate under the drive of the turntable 23. The axis of rotation of the rotating duct structure 21 is configured to be coaxial with the axis of rotation of the cross-flow fan blade 22.

[0088] Specifically, the rotating air duct wall 211, the volute tongue 212, and the turntables 23 at both ends are integrally formed.

[0089] like Figure 2 As shown, one end of the rotating air duct wall 211 is a pointed tip 2111, making the outer wall surface of the pointed tip an inclined surface. The wall surface of the rotating air duct wall 211 near the volute tongue 212 is the inner wall surface, and the wall surface of the rotating air duct wall 211 away from the volute tongue 212 is the outer wall surface. The outer wall surface of the rotating air duct wall 211 is also provided with an inclined fourth limiting rib 2112 and an arc-shaped reinforcing rib 2113. The fourth limiting rib 2112 is located near the pointed tip 2111. The reinforcing rib 2113 is used to strengthen the rotating air duct wall 211 to prevent deformation.

[0090] In this embodiment, the rotating air duct wall 211 is an arc-shaped plate.

[0091] like Figure 2 As shown, a second limiting rib 2121 is provided on the outer wall surface of the volute tongue 212. (As indicated...) Figure 3As shown, the end of the volute tongue 212 is provided with a second engaging step 2122.

[0092] like Figure 4 As shown, a first air outlet is provided on the top plate 12 in this embodiment. Figure 9 As shown, a second air outlet is provided on the base plate 13 in this embodiment. The front panel 3 is rotatably disposed relative to the housing 1 so that the bottom end of the front panel 3 opens between the front panel 3 and the housing 1 to form a first air inlet, or the top end of the front panel 3 opens between the front panel 3 and the housing 1 to form a second air inlet. Figure 4 In the cooling mode shown, the bottom of the front panel 3 opens between itself and the casing 1 to form a first air inlet, allowing airflow to enter the casing 1 through the first air inlet and exit through the first air outlet. Figure 4 As shown, a cooling air inlet duct CI and a cooling air outlet duct CO are formed inside the casing 1. Airflow enters the cooling air inlet duct CI through the first air inlet, then flows through the heat exchanger 4 to the air duct assembly 2, and finally flows through the cooling air outlet duct CO to the first air outlet. Figure 9 In the heating mode shown, the top of the front panel 3 opens between itself and the casing 1 to form a second air inlet, allowing airflow to enter the casing 1 through the second air inlet and exit through the second air outlet. Figure 9 As shown, a heating air inlet duct HI and a heating air outlet duct HO are formed inside the casing 1. The airflow enters the heating air inlet duct HI through the second air inlet, then flows to the air duct assembly 2 through the heat exchanger 4, and finally flows to the second air outlet through the heating air outlet duct HO.

[0093] As can be seen, in this embodiment, the wall-mounted air conditioner indoor unit switches the air inlet by controlling the rotation of the front panel 3 when switching between cooling and heating modes. The front panel 11 is rotatably configured so that one of the first air inlet and the second air inlet is open while the other is closed.

[0094] Furthermore, in cooling mode, air is discharged from the first air outlet located on the top plate 12 to avoid direct cold air blowing and improve comfort. In heating mode, air is discharged from the second air outlet located on the bottom plate 13, allowing hot air to quickly reach the ground and accelerate heating.

[0095] Because the location of the air outlet differs between cooling and heating modes, the wall-mounted air conditioner indoor unit of this embodiment includes an upper air outlet duct located on the upper side inside the casing 1 and a lower air outlet duct located on the lower side.

[0096] like Figure 4As shown, the upper air outlet duct includes a first upper air outlet wall 15 and a second upper air outlet wall 16 respectively disposed on both sides of the upper air outlet duct. The space between the first upper air outlet wall 15 and the second upper air outlet wall 16 forms the upper air outlet duct. The first upper air outlet wall 15 is located on the front side, and the second upper air outlet wall 16 is located on the rear side. The upper air outlet duct is configured to be inclined to the rear side so that the airflow blown out of the upper air outlet duct blows towards the wall. In this way, when the upper air outlet duct is used as a cooling air outlet duct, the blown cold air blows towards the wall, further avoiding the problem of cold air blowing directly onto the human body.

[0097] like Figure 4 As shown, the lower air outlet duct includes a first lower air outlet wall 17 and a second lower air outlet wall 18 respectively disposed on both sides of the lower air outlet duct. The space between the first lower air outlet wall 17 and the second lower air outlet wall 18 forms the lower air outlet duct. The first lower air outlet wall 17 is located on the front side, and the second lower air outlet wall 18 is located on the rear side.

[0098] In order to adapt the position of the air outlet duct of the air duct assembly 2 to the positions of the upper and lower air outlet ducts mentioned above, the position of the rotating air duct structure 21 of the air duct assembly 2 in this embodiment is also different in the cooling mode and the heating mode.

[0099] like Figure 1 As shown, the rotating duct wall 211 and the volute tongue 212 are mounted on the turntable 23 and rotate together under the drive of the turntable 23 to switch the rotating duct structure 21 between a first position and a second position. In the first position, the outlet of the air duct formed between the rotating duct wall 211 and the volute tongue 212 faces the upper air duct; in the second position, the outlet of the air duct formed between the rotating duct wall 211 and the volute tongue 212 faces the lower air duct.

[0100] like Figure 2 and Figure 3 As shown, the rotating duct wall 211 and the volute tongue 212 are mounted on the turntable 23. When the turntable 23 rotates, it drives the rotating duct wall 211 and the volute tongue 212 to rotate together. Figure 4 As shown, in this embodiment, when the indoor unit of the air conditioner is in cooling mode, the rotating air duct structure 21 is in the first position. In the first position, as... Figure 4 As shown, the end of the rotating air duct wall 211 overlaps with the first upper air outlet wall 15, and the volute tongue 212 overlaps with the second upper air outlet wall 16, thus making the air outlet duct formed between the rotating air duct wall 211 and the volute tongue 212 connected to the upper air outlet duct. Figure 9 As shown, in this embodiment, when the indoor unit of the air conditioner is in heating mode, the rotating air duct structure 21 is in the second position. In the second position, as... Figure 9As shown, the air duct baffle 5 rotates to a position where it is smoothly connected to the first lower air outlet wall 17, the volute tongue 212 overlaps on the air duct baffle 5, and the end of the rotating air duct wall 211 is attached to the second lower air outlet wall 18, so that the air outlet duct formed between the rotating air duct wall 211 and the volute tongue 212 is connected to the lower air outlet duct.

[0101] Combination Figure 4 and Figure 9 When the rotating air duct structure 21 switches from the second position to the first position, the rotating air duct structure 21 rotates clockwise; when the rotating air duct structure 21 switches from the first position to the second position, the rotating air duct structure 21 rotates counterclockwise.

[0102] In order to make the positions of the rotating duct wall 211 and the volute tongue 212 more accurate when the rotating duct structure 21 switches between the first position and the second position, and to ensure the airtightness of the duct after switching, the indoor unit of the air conditioner in this embodiment also includes a limiting component.

[0103] like Figure 4 The diagram shows the internal structure in the cooling top-outlet configuration. With the first air guide plate 6 open and the bottom of the front panel open, the rotating air duct structure 21 rotates to the position shown, forming a cooling air outlet duct. The first position of the rotating air duct structure 21 is limited by a limiting component.

[0104] like Figure 9 The diagram shows the internal structure in the heating and air outlet state. The second air guide plate 7 is open, the upper end of the front panel is open, and the rotating air duct structure 21 rotates counterclockwise to the position shown in the diagram. Then, the air duct baffle 5 rotates counterclockwise around axis O to the position shown in the diagram, forming a heating air outlet duct. The second position of the rotating air duct structure 21 is limited by a limiting component.

[0105] The following is a detailed explanation of how the limit component performs the limit function.

[0106] like Figure 2 and Figure 3 As shown, a second limiting rib 2121 is provided on the back side of the volute tongue 212, and a second engaging step is provided at the end of the volute tongue 212. One end of the rotating air duct wall 211 is formed into a pointed tip 2111, and the back side of the pointed tip is an inclined surface. A fourth limiting rib 2112 is provided on the back side of the rotating air duct wall 211.

[0107] like Figures 4 to 6As shown, in cooling mode, the rotating air duct wall 211 overlaps with the first upper air outlet wall 15. The tip 2111 of the rotating air duct wall 211 engages with the first limiting rib 14 on the first upper air outlet wall 15. The first guide surface 151 of the first upper air outlet wall 15 guides the tip, preventing misalignment caused by outward or inward deformation of the tip 2111 before it reaches its final position. Furthermore, the inner wall of the first limiting rib 14 restricts the radial deformation of the tip after it has reached its final position, ensuring accurate rotation. The first sealing surface 152 engages with the inclined surface on the back of the tip 2111, providing a seal and ensuring the airtightness of the air duct surface.

[0108] like Figure 7 and Figure 8 As shown, in cooling mode, the volute 212 overlaps with the second upper air outlet wall 16. The second engaging step 2122 of the volute 212 engages with the first engaging step 161 at the end of the second upper air outlet wall 16 to ensure the sealing and integrity of the air duct surface. Figure 7 As shown, when the second limiting rib 2121 on the volute tongue 212 rotates to the position shown in the figure, it contacts the locking surface 81 of the third limiting rib 8, thereby restricting the rotation and ensuring that the rotation is in place.

[0109] like Figure 9 As shown, in heating mode, the rotating air duct wall 211 overlaps with the second lower air outlet wall 18, and the volute tongue 212, air duct baffle 5, and first lower air outlet wall 17 overlap. Figure 10 As shown, the fourth limiting rib 2112 on the back of the rotating air duct wall 211 cooperates with the clamping plate 9 for positioning. The clamping plate 9 has a second clamping groove 91 to limit the fourth limiting rib 2112. The second guide surface 92 and the third guide surface 93 of the clamping plate 9 guide the fourth limiting rib 2112, preventing improper assembly. Figure 10 As shown, the second sealing surface 184 is sealed and fitted with the inclined surface on the back of the tip, which plays a sealing role and ensures the airtightness of the air duct surface.

[0110] like Figure 12 and Figure 13 As shown, in heating mode, the volute tongue 212 overlaps with the air duct baffle 5. Figure 12 As shown, since the rotating air duct structure 21 rotates to its position first, that is, the volute tongue 212 reaches the set position first, and then the air duct baffle 5 is controlled to rotate, the second limiting rib 2121 provided on the volute tongue 212 forms a rotation limit on the air duct baffle 5. Specifically, the fifth limiting rib 51 on the air duct baffle 5 overlaps the second limiting rib 2121 to prevent the air duct baffle 5 from rotating too much.

[0111] like Figure 13As shown, the end of the fifth limiting rib 51 of the air duct baffle 5 is provided with a third sealing surface 511, and the end of the volute tongue 212 is provided with a fourth sealing surface 512. The third sealing surface 511 and the fourth sealing surface 512 are in contact with the contact surface on the volute tongue to ensure the airtightness and integrity of the air duct.

[0112] The indoor unit of this air conditioner changes the air outlet direction through a rotating duct structure. To address the issue of inaccurate overlap of the rotating duct structure, a limiting structure is rationally designed at the duct overlap to ensure the accuracy of the rotation position and the airtightness of the duct, thereby improving product quality and enhancing the user experience.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. A wall-mounted air conditioner indoor unit, characterized by comprising: include: The housing (1) is provided with an upper air outlet duct on the upper side and a lower air outlet duct on the lower side. A duct assembly (2) comprising a rotating duct structure (21) and a cross-flow fan (22), the rotating duct structure (21) comprising a rotating duct wall (211) and a volute (212) for discharging air to the cross-flow fan (22), the rotating duct structure (21) rotating to switch between a first position and a second position, in the first position, the outlet of the air duct formed between the rotating duct wall (211) and the volute (212) facing an upper air duct; in the second position, the outlet of the air duct formed between the rotating duct wall (211) and the volute (212) facing a lower air duct; and A limiting component is used to abut against the rotating air duct structure (21) to position the rotating air duct structure (21) at a first position or a second position respectively.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The upper air outlet duct includes a first upper air outlet wall (15) and a second upper air outlet wall (16) located on the front and rear sides respectively. The limiting component includes a first limiting rib (14) disposed on the first upper air outlet wall (15). The first limiting rib (14) is inclined and intersectingly disposed on the inner surface of the first upper air outlet wall (15) to form a first slot (145) between it and the inner surface of the first upper air outlet wall (15). When the rotating air duct structure (21) rotates to the first position around the first direction, the end of the rotating air duct wall (211) extends into the first slot (145) to prevent the rotating air duct structure (21) from continuing to rotate along the first direction.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The inner surface of the first upper air outlet wall (15) includes a first sealing surface (152). In the first position, the outer wall surface of the rotating air duct wall (211) is in contact with the first sealing surface (152).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The inner surface of the first upper air outlet wall (15) includes a first guide surface (151) located on the side away from the air outlet end of the first sealing surface (152). At the first position, the upper air outlet duct discharges air, and in the direction of airflow, the distance between the first guide surface (151) and the rotating air duct wall (211) gradually decreases.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized by, The upper air outlet duct includes a first upper air outlet wall (15) and a second upper air outlet wall (16) located on the front and rear sides respectively. The limiting component includes a first locking step (161) disposed at the end of the second upper air outlet wall (16). The end of the volute tongue (212) is provided with a second locking step. In the first position, the second locking step of the volute tongue (212) is locked onto the first locking step (161) to prevent the rotating air duct structure (21) from continuing to rotate in the first direction.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that, The limiting assembly further includes a second limiting rib (2121) disposed on the outer wall surface of the volute tongue (212) and a third limiting rib (8) disposed on the housing (1). The third limiting rib (8) has a locking surface (81). In the first position, the second limiting rib (2121) abuts against the locking surface (81) to prevent the rotating air duct structure (21) from continuing to rotate.

7. The wall-mounted air conditioner indoor unit according to claim 1, characterized by, The wall-mounted air conditioner indoor unit also includes an air duct baffle (5) disposed inside the housing (1) and rotatable relative to the housing (1), wherein the air duct baffle (5) is located above the air duct assembly (2); or, the air duct baffle (5) is located below the air duct assembly (2).

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, The upper air outlet duct includes a first upper air outlet wall (15) and a second upper air outlet wall (16) located on the front and rear sides respectively. When the rotating air duct structure (21) is in the first position, the upper air outlet duct discharges air, and the air duct baffle (5) rotates so that the two ends of the air duct baffle (5) abut against the volute tongue (212) and the first upper air outlet wall (15) respectively to form an air duct surface. When the rotating air duct structure (21) is in the second position, the lower air outlet duct discharges air, and the air duct baffle (5) rotates so that the air duct baffle (5) abuts against the second upper air outlet wall (16) and covers the air outlet surface of the upper air outlet duct to block the airflow.

9. The wall-mounted air conditioner indoor unit according to claim 7, wherein The lower air outlet duct includes a first lower air outlet wall (17) and a second lower air outlet wall (18) located on the front and rear sides respectively. When the rotating air duct structure (21) is in the first position, the upper air outlet duct discharges air, and the air duct baffle (5) rotates so that the air duct baffle (5) abuts against the second lower air outlet wall (18) and covers the air outlet surface of the lower air outlet duct to block the airflow. When the rotating air duct structure (21) is in the second position, the lower air outlet duct discharges air, and the air duct baffle (5) rotates so that both ends of the air duct baffle (5) abut against the volute tongue (212) and the first lower air outlet wall (17) respectively to form an air duct surface.

10. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, The limiting component includes a fourth limiting rib (2112) disposed on the outer wall of the rotating air duct wall (211) and a retaining plate (9) disposed on the second lower air outlet wall (18). The retaining plate (9) includes a second retaining groove (91). When the rotating air duct structure (21) rotates around the second direction to the second position, the fourth limiting rib (2112) is engaged in the second retaining groove (91) to prevent the rotating air duct structure (21) from continuing to rotate.

11. The wall-mounted air conditioner indoor unit according to claim 10, characterized in that, The card plate (9) includes a second guide surface (92) and a third guide surface (93) respectively disposed at both ends of the second card slot (91).

12. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, The limiting component also includes a second limiting rib (2121) disposed on the outer wall surface of the volute tongue (212) and a fifth limiting rib (51) disposed on the outer wall surface of the air duct baffle (5). In the second position, the fifth limiting rib (51) abuts against the second limiting rib (2121) to prevent the air duct baffle (5) from continuing to rotate.

13. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, The inner surface of the second lower air outlet wall (18) includes a second sealing surface (184), and in the second position, the outer wall surface of the rotating air duct wall (211) is in contact with the second sealing surface (184).

14. An air conditioning system comprising a wall-mounted indoor air conditioning unit as claimed in any one of claims 1 to 13.

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