Wall-mounted air conditioner indoor unit and air conditioning system

Abstract

Embodiments of the present application provide a wall-mounted air conditioner indoor unit and an air conditioning system. The wall-mounted air conditioner indoor unit comprises a casing and a front panel. The casing comprises a back plate, a top plate and a bottom plate. The top plate and the bottom plate are arranged at intervals in the height direction, and the back plate is arranged between the top plate and the bottom plate. The top plate is provided with an upper air outlet, and the bottom plate is provided with a lower air outlet. The front panel is a bent plate, and the front panel comprises a main plate section extending in the length direction of the casing and two bent plate sections arranged at the two ends of the main plate section in the length direction. At least one of the two bent plate sections is provided with a side air inlet. In the cooling mode, a bottom air inlet is formed between the bottom end of the front panel and the casing, and the airflow enters the casing through the bottom air inlet and the side air inlet and flows out through the upper air outlet; in the heating mode, a top air inlet is formed between the top end of the front panel and the casing, and the airflow enters the casing from the top air inlet and the side air inlet and flows out through the lower air outlet.

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 includes a rear panel, a top panel, and a bottom panel. The top and bottom panels are spaced apart in the height direction, and the rear panel is positioned between the top and bottom panels. An upper air outlet is provided on the top panel, and a lower air outlet is provided on the bottom panel.

[0007] The front panel is movably disposed relative to the housing so that the bottom end of the front panel opens between the housing to form a bottom air inlet or the top end of the front panel opens between the housing to form a top air inlet. The front panel is a bent plate and includes a main board segment extending in the length direction of the housing and two bent plate segments respectively disposed at both ends in the length direction of the main board segment. At least one of the two bent plate segments is provided with a side air inlet.

[0008] The indoor unit of the wall-mounted air conditioner has a cooling mode and a heating mode. In cooling mode, the bottom of the front panel opens between itself and the casing to form a bottom air inlet. Airflow enters the casing through the bottom air inlet and the side air inlet and flows out through the top air outlet. In heating mode, the top of the front panel opens between itself and the casing to form a top air inlet. Airflow enters the casing through the top air inlet and the side air inlet and flows out through the bottom air outlet.

[0009] In some embodiments, each bent plate segment is provided with a side air inlet.

[0010] In some embodiments, a ventilation grille is provided at the side air inlet.

[0011] In some embodiments, the ventilation grille includes a plurality of grille plates spaced apart in the height direction, the gap between two adjacent grille plates forming a ventilation opening, the grille plates being inclined and the inner end of the grille plates being configured to be closer to the base plate than the outer end.

[0012] In some embodiments, the wall-mounted air conditioner indoor unit further includes at least two telescopic mechanisms spaced apart in the height direction of the casing. The first end of the telescopic mechanism is connected to the casing, and the second end of the telescopic mechanism is connected to the front panel. The first end and the second end of the telescopic mechanism are telescopically connected. Part of the at least two telescopic mechanisms retracts while the other part extends to control the bottom or top end of the front panel to leave the casing to open the bottom air inlet or the top air inlet.

[0013] In some embodiments, the telescopic mechanism includes a push rod.

[0014] In some embodiments, the wall-mounted air conditioner indoor unit further includes a first air guide plate disposed at the upper air outlet, the first air guide plate being rotatably disposed to open or close the upper air outlet, and the rotation shaft of the first air guide plate being located at the end of the upper air outlet; and / or, the wall-mounted air conditioner indoor unit further includes a second air guide plate disposed at the lower air outlet, the second air guide plate being rotatably disposed to open or close the lower air outlet, and the rotation shaft of the second air guide plate being located at the end of the lower air outlet.

[0015] In some embodiments, the indoor unit of the wall-mounted air conditioner further includes a duct assembly disposed within the casing. The duct assembly includes a duct structure and a cross-flow fan blade disposed within the duct structure. The duct structure includes a duct wall and a volute. The duct structure is configured to be rotatable to switch between a first rotation position and a second rotation position. In cooling mode, the duct structure rotates to the first rotation position so that the airflow entering the casing flows through the duct structure to the upper air outlet. In heating mode, the duct structure rotates to the second rotation position so that the airflow entering the casing flows through the duct structure to the lower air outlet.

[0016] In some embodiments, the indoor unit of the wall-mounted air conditioner further includes a first upper air duct wall, a second upper air duct wall, and an air duct baffle disposed within the casing. The first upper air duct wall and the second upper air duct wall are respectively located on the front and rear sides of the upper air outlet to form a lower air outlet. The air duct baffle is rotatable relative to the casing. In heating mode, the air duct baffle rotates so that the air duct baffle abuts against the second upper air duct wall and covers the air outlet surface of the upper air outlet to block the airflow. In cooling mode, the air duct baffle rotates so that both ends of the air duct baffle abut against the volute tongue and the first upper air duct wall respectively to form an air duct surface.

[0017] In some embodiments, the outer wall surface of the volute tongue is provided with a first limiting rib, and the outer wall surface of the air duct baffle is provided with a second limiting rib. In the second rotation position, the second limiting rib abuts against the first limiting rib to prevent the air duct baffle from continuing to rotate.

[0018] In some embodiments, the housing further includes a front panel disposed opposite to the rear panel, the front panel being disposed between the top panel and the bottom panel to enclose and form a receiving cavity, and the wall-mounted air conditioner indoor unit further includes a heat exchanger and an air duct assembly disposed sequentially in the thickness direction within the receiving cavity, the heat exchanger being disposed close to the front panel, an air inlet being disposed on the front panel, and a front panel being disposed on the front side of the front panel.

[0019] A second aspect of this application provides an air conditioning system, including an outdoor unit and the aforementioned wall-mounted indoor unit.

[0020] Based on the technical solution provided in this application, a wall-mounted air conditioner indoor unit includes a casing and a front panel. The casing includes a rear panel, a top panel, and a bottom panel. The top panel and bottom panel are spaced apart in the height direction, and the rear panel is located between the top panel and the bottom panel. An upper air outlet is provided on the top panel, and a lower air outlet is provided on the bottom panel. The front panel is movably disposed relative to the casing such that the bottom end of the front panel opens to form a bottom air inlet, or the top end of the front panel opens to form a top air inlet. The front panel is a bent plate, and includes a main panel extending in the length direction of the casing and two bent plate segments respectively disposed at both ends of the main panel in the length direction. At least one of the two bent plate segments has a side air inlet. The wall-mounted air conditioner indoor unit has a cooling mode and a heating mode. In cooling mode, the bottom of the front panel opens to form a bottom air inlet, allowing airflow to enter the casing through the bottom and side air inlets and exit through the top air outlet. In heating mode, the top of the front panel opens to form a top air inlet, allowing airflow to enter the casing through the top and side air inlets and exit through the bottom air outlet. This embodiment of the wall-mounted air conditioner indoor unit features a top air outlet on the top panel and a bottom air outlet on the bottom panel. In cooling mode, air is discharged from the top air outlet to avoid direct cold air blowing on the body and causing discomfort. In heating mode, air is discharged from the bottom air outlet, allowing hot air to reach the ground directly through the bottom air outlet, achieving rapid room warming. Furthermore, the front panel of the wall-mounted air conditioner indoor unit in this application embodiment is a bent plate, and side air inlets are provided on the bent plate sections at both ends in the length direction. In this way, air can not only be introduced through the bottom air inlet or the top air inlet, but also through the side air inlet, which increases the total area of ​​the air inlet, reduces resistance, and thus increases the air volume and improves the heat exchange efficiency.

[0021] 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

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the internal structure of a wall-mounted air conditioner indoor unit when it is turned off, according to some embodiments of this application.

[0024] Figure 2 This is a schematic diagram of the internal structure of a wall-mounted air conditioner indoor unit in cooling mode according to some embodiments of this application.

[0025] Figure 3 for Figure 2 The diagram shows a partially enlarged structural schematic of the indoor unit of a wall-mounted air conditioner.

[0026] Figure 4 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.

[0027] Figure 5 This is a schematic diagram of the front panel of a wall-mounted air conditioner indoor unit according to some embodiments of this application.

[0028] Figure 6 for Figure 5 A structural schematic diagram of the front panel from another angle is shown.

[0029] Figure 7 for Figure 5 The diagram shows a cross-sectional view of the front panel.

[0030] Figure label:

[0031] 1. Housing; 11. Rear panel; 12. Top panel; 121. Upper air outlet; 13. Bottom panel; 131. Lower air outlet; 14. Front panel; 15. First upper air duct wall; 16. Second upper air duct wall; 17. First lower air outlet wall; 18. Second lower air outlet wall;

[0032] 2. Air duct components;

[0033] 21. Air duct structure; 211. Air duct wall; 212. Volute tongue; 2121. First limiting rib;

[0034] 22. Crossflow fan blades;

[0035] 3. Front panel; A. Bottom air inlet; B. Top air inlet; 31. Main board section; 32. Bending plate section; 321. Side air inlet; 33. Clips;

[0036] 4. Heat exchanger;

[0037] 5. Air duct baffle; 51. Second limiting rib; 52. Third limiting rib;

[0038] 6. First air guide plate;

[0039] 7. Second air guide plate;

[0040] 8. Telescopic mechanism; 81. First telescopic mechanism; 82. Second telescopic mechanism;

[0041] 9. Limiting structure;

[0042] X: length direction; Y: thickness direction; Z: height direction. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] To address the aforementioned issues, this application proposes a wall-mounted air conditioner indoor unit. This indoor unit includes an upper air outlet on the top plate and a lower air outlet on the bottom plate. By controlling the rotation of the air duct structure, the outlet of the air duct formed between the air duct wall and the volute tongue is directed towards either the upper or lower air outlet. In cooling mode, air is selected to exit from the upper air outlet, thereby avoiding direct cold air blowing and improving user comfort.

[0049] The following is for reference. Figures 1 to 7 The structure and operation of the wall-mounted air conditioner indoor unit of some embodiments of this application will be described in detail.

[0050] refer to Figures 1 to 7The wall-mounted air conditioner indoor unit provided in some embodiments of this application includes a housing 1 and a front panel 3. The housing 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, and the rear panel 11 is disposed between the top panel 12 and the bottom panel 13. The top panel 12 has an upper air outlet 121, and the bottom panel 13 has a lower air outlet 131. The front panel 3 is movably disposed relative to the housing 1 such that the bottom end of the front panel 3 opens between the housing 1 to form a bottom air inlet A, or the top end of the front panel 3 opens between the housing 1 to form a top air inlet B. The front panel 3 is a bent plate, and the front panel 3 includes a main plate segment 31 extending in the length direction X of the housing 1 and two bent plate segments 32 respectively disposed at both ends of the main plate segment 31 in the length direction X. At least one of the two bent plate segments 32 is provided with a side air inlet 321.

[0051] The wall-mounted air conditioner indoor unit has a cooling mode and a heating mode. In cooling mode, the bottom of the front panel 3 opens between itself and the casing 1 to form a bottom air inlet A. Airflow enters the casing 1 through the bottom air inlet A and the side air inlet 321 and flows out through the top air outlet 121. In heating mode, the top of the front panel 3 opens between itself and the casing 1 to form a top air inlet B. Airflow enters the casing 1 through the top air inlet B and the side air inlet 321 and flows out through the bottom air outlet 131.

[0052] The wall-mounted air conditioner indoor unit of this application embodiment has an upper air outlet 121 on the top plate 12 and a lower air outlet 131 on the bottom plate 13. In cooling mode, air is discharged from the upper air outlet 121 to avoid cold air blowing directly on people and causing discomfort; and in heating mode, air is discharged from the lower air outlet 131, so that hot air can reach the ground directly through the lower air outlet 131 to achieve the purpose of quickly warming the room. Moreover, the front panel 3 of the wall-mounted air conditioner indoor unit of this application embodiment is constructed as a bent plate, and side air inlets 321 are provided on the bent plate sections 32 at both ends in the length direction. In this way, air can not only be introduced through the bottom air inlet A or the top air inlet B, but also through the side air inlets 321, which increases the total area of ​​the air inlets, reduces resistance, and thus increases the air volume and improves the heat exchange efficiency. Furthermore, since the air intake of the indoor unit of the wall-mounted air conditioner in this application is formed by the air intake from the bottom air intake A (top air intake B) and the side air intake 321, the opening angle of the front panel 3 relative to the casing 1 can be reduced while meeting a certain air intake volume. This ensures that even if air is intake from the bottom air intake A, the opening angle is very small, thus preventing the user from seeing the internal structure of the air conditioner and effectively ensuring the aesthetics of the whole unit when it is working.

[0053] The wall-mounted air conditioner indoor unit of this application forms a bottom air inlet and a top air inlet by controlling the movement of the front panel 3 relative to the casing 1. This creates an air intake duct between the front panel 3 and the front end of the casing 1 in both cooling and heating modes. Thus, along the length of the casing 1, the two ends of the front panel 3, i.e., the two bent plate segments 32, are located on the sides of the air intake duct. Therefore, by providing side air inlets 321 on the bent plate segments 32, air can enter the air intake duct, thereby increasing the air intake volume. Therefore, the technical solution of this application embodiment, which increases the air intake volume by providing side air inlets 321 on the bent plate segments 32, is based on the front panel 3 moving outward relative to the casing 1 to open and form a bottom air inlet or a top air inlet.

[0054] When the indoor unit of the air conditioner in this embodiment is turned off, such as Figure 1 As shown, both the top and bottom ends of the front panel 3 abut against the front end of the casing 1. Compared to related technologies that require a certain distance for the air inlet and a specially designed baffle to open and close the air inlet, this simplifies the structure of the indoor air conditioning unit. Furthermore, the air inlet is formed by the movement of the front panel 3 relative to the casing 1, thus... Figure 1 As shown, in the off state, there is no dedicated air inlet occupying the thickness dimension, thus making the thickness of the air conditioner indoor unit smaller when the unit is off.

[0055] refer to Figures 5 to 7 The front panel 3 of this application embodiment includes a main board segment 31 extending in the length direction X of the housing 1 and two bent plate segments 32 respectively disposed at both ends of the main board segment 31 in the length direction X. At least one of the two bent plate segments 32 is provided with a side air inlet 321. For example, in some embodiments, only one of the two bent plate segments 32 is provided with a side air inlet 321. In other embodiments, both bent plate segments 32 are provided with side air inlets 321.

[0056] In some embodiments, reference Figure 5 Each bent plate segment 32 is provided with a side air inlet 321. By providing side air inlets 321 on both bent plate segments 32, the air intake can be further increased and the heat exchange efficiency can be improved.

[0057] In order to guide the airflow entering the housing 1 through the side air inlet 321, in some embodiments, a ventilation grille is provided at the side air inlet 321.

[0058] The ventilation grille includes a plurality of grille plates spaced apart in the height direction, the gap between two adjacent grille plates forming a ventilation opening, the grille plates being inclined and the inner end of the grille plates being configured to be closer to the bottom plate 13 relative to the outer end.

[0059] By installing a ventilation grille at the side air inlet 321, with the gaps between the grille plates forming ventilation openings, and the grille plates being configured to be inclined downwards, the airflow entering the casing 1 through the side air inlet 321 flows downwards, effectively guiding the airflow to the heat exchanger 4 and reducing airflow resistance. Simultaneously, the inclined grille plates also serve a shielding function, preventing users from directly seeing the internal structure of the unit.

[0060] Further, refer to Figure 2 In the cooling mode, the wall-mounted air conditioner indoor unit of this application opens between the bottom of the front panel 3 and the casing 1 to form a bottom air inlet A. In this cooling mode, the airflow path is from the bottom air inlet A and the side air inlet 321 into the casing 1, and after heat exchange by the heat exchanger 4, it flows out through the top air outlet 121. In other words, the overall airflow is a bottom-in, top-out path, which makes the airflow path within the casing 1 longer, thus allowing for more thorough heat exchange by the heat exchanger 4, resulting in better cooling performance. Furthermore, in this state, the cool air in the room flows from top to bottom, avoiding direct airflow onto people, effectively improving comfort. Simultaneously, because the air supply height is higher, the air supply range is wider, resulting in even better cooling performance.

[0061] refer to Figure 3 In heating mode, the top of the front panel 3 opens between the top of the front panel 3 and the casing 1 to form a top air inlet B. In this way, the airflow path in heating mode is from the top air inlet B and the side air inlet 321 into the casing 1, and after heat exchange by the heat exchanger 4, it flows out through the bottom air outlet 131. That is to say, the overall airflow path is top air inlet and bottom air outlet, which makes the airflow path in the casing 1 longer, so that the heat exchanger 4 can fully exchange heat, and thus the heating effect is better.

[0062] In some embodiments, the wall-mounted air conditioner indoor unit further includes at least two telescopic mechanisms 8 spaced apart in the height direction Z of the housing 1. The first end of the telescopic mechanism 8 is connected to the housing 1, and the second end of the telescopic mechanism 8 is connected to the front panel 3. The first end and the second end of the telescopic mechanism 8 are telescopically connected. A portion of the two telescopic mechanisms 8 retracts while the other portion extends to control the bottom or top end of the front panel 3 to leave the housing 1 to open the bottom air inlet A or the top air inlet B.

[0063] The wall-mounted air conditioner indoor unit of this application embodiment uses at least two telescopic mechanisms spaced apart in the height direction between the front panel 3 and the casing 1. The extension and retraction of the at least two telescopic mechanisms are controlled to open the bottom air inlet A or the top air inlet B. The structure is simple and easy to control.

[0064] At least two telescopic mechanisms include a first telescopic mechanism 81 located near the top and a second telescopic mechanism 82 located near the bottom. Controlling the first telescopic mechanism 81 to extend and controlling the second telescopic mechanism 82 to retract can open the top air inlet; controlling the second telescopic mechanism 82 to extend and controlling the first telescopic mechanism 81 to retract can open the bottom air inlet.

[0065] Of course, in some other embodiments, multiple telescopic mechanisms can be provided between the front panel 3 and the housing 1, and the telescopic actions of the multiple telescopic mechanisms can be controlled according to the working mode of the indoor unit of the air conditioner. Specifically, the first end of the telescopic mechanism is rotatably connected to the housing 1, and the second end of the telescopic mechanism is rotatably connected to the front panel 3.

[0066] In some embodiments, the telescopic mechanism includes a push rod. The push rod may be an electrically operated push rod.

[0067] In some embodiments, the wall-mounted air conditioner indoor unit further includes a first air guide plate 6 disposed at the upper air outlet 121. The first air guide plate 6 is rotatably disposed to open or close the upper air outlet 121, and the rotation axis of the first air guide plate 6 is located at the end of the upper air outlet 121. The wall-mounted air conditioner indoor unit further includes a second air guide plate 7 disposed at the lower air outlet 131. The second air guide plate 7 is rotatably disposed to open or close the lower air outlet 131, and the rotation axis of the second air guide plate 7 is located at the end of the lower air outlet 131.

[0068] Specifically, such as Figure 2 As shown, one end of the first air guide plate 6 is rotatably connected to the top plate 12. The connection between the first air guide plate 6 and the top plate 12 is located at the end of the upper air outlet 121. This ensures that when the first air guide plate 6 is opened to allow the upper air outlet 121 to open, the first air guide plate 6 will not obstruct the airflow, resulting in smoother air delivery from the indoor unit of the air conditioner.

[0069] like Figure 4 As shown, one end of the second air guide plate 7 is rotatably connected to the base plate 13, and the connection between the second air guide plate 7 and the base plate 13 is located at the end of the lower air outlet 131. In this way, when the second air guide plate 7 is opened to open the lower air outlet 131, the second air guide plate 7 will not obstruct the flow of air, making the air supply of the indoor unit of the air conditioner smoother.

[0070] In some embodiments, such as Figure 2 and Figure 3 As shown, the wall-mounted air conditioner indoor unit also includes a first upper air duct wall 15 and a second upper air duct wall 16 located at the upper air outlet 121 and on the front and rear sides respectively. The gap between the first upper air duct wall 15 and the second upper air duct wall 16 forms the upper air outlet duct. Figure 2 and Figure 3As shown, the upper air outlet is configured to tilt forward, meaning that the air outlet in cooling mode is tilted forward.

[0071] In some embodiments, such as Figure 4 As shown, the wall-mounted air conditioner indoor unit also includes a first lower air outlet wall 17 and a second lower air outlet wall 18 located at the lower air outlet 131 and on the front and rear sides respectively. The gap between the first lower air outlet wall 17 and the second lower air outlet wall 18 forms a lower air outlet duct. Figure 4 As shown, the lower air outlet is configured to be inclined to the rear, which means that the air outlet in heating mode is inclined to the rear. When the hot air is blown out along the lower air outlet, it blows out obliquely downward and flows down the wall. This makes the vertical air supply distance longer, which can avoid the situation of high temperature at the top and low temperature at the bottom, thus improving the heating effect.

[0072] refer to Figure 2 and Figure 4 In some embodiments, the indoor unit of the wall-mounted air conditioner further includes a duct assembly 2 disposed within the casing 1. The duct assembly 2 includes a duct structure 21 and a cross-flow fan blade 22 disposed within the duct structure 21. The duct structure 21 includes a duct wall 211 and a volute tongue 212. The duct structure 21 is configured to be rotatable to switch between a first rotation position and a second rotation position. In cooling mode, the duct structure 21 rotates to the first rotation position so that the airflow entering the casing 1 flows through the duct structure to the upper air outlet 121. In heating mode, the duct structure 21 rotates to the second rotation position so that the airflow entering the casing 1 flows through the duct structure to the lower air outlet 131.

[0073] refer to Figure 2 and Figure 4 The air duct structure 21 includes an air duct wall 211 and a volute tongue 212, which are relatively fixed and rotate together. In the radial direction, one end between the air duct wall 211 and the volute tongue 212 forms an air inlet duct, and the other end forms an air outlet duct. In this embodiment, the positions of the air inlet and outlet of the air conditioner indoor unit are different in cooling and heating modes. Therefore, to adapt to these changes in the air inlet and outlet, the air duct structure 21 is configured to be rotatably arranged. This allows the position of the air inlet duct of the air duct structure 21 to match the air inlet, and the position of the air outlet duct to match the air outlet, thereby making the airflow smoother, reducing wind resistance, and optimizing performance.

[0074] In some embodiments, the duct structure 21 further includes a turntable, on which the duct wall 211 and the volute tongue 212 are disposed. The turntable is rotatably configured to drive the duct wall 211 and the volute tongue 212 to rotate together. In some embodiments, the turntable includes an annular gear ring, and the duct assembly 2 further includes an internal gear meshing with the annular gear ring and a drive mechanism. The internal gear is meshed inside the annular gear ring and configured to rotate under the drive of the drive mechanism to drive the turntable to rotate.

[0075] refer to Figures 2 to 4 In some embodiments, the indoor unit of the wall-mounted air conditioner further includes a first upper air duct wall 15, a second upper air duct wall 16, and an air duct baffle 5 disposed within the casing 1. The first upper air duct wall 15 and the second upper air duct wall 16 are respectively located on the front and rear sides of the upper air outlet 121 to form an upper air outlet duct. The air duct baffle 5 is rotatable relative to the casing 1. In the heating mode, the air duct baffle 5 rotates so that the air duct baffle 5 abuts against the second upper air duct wall 16 and covers the air outlet surface of the lower air outlet duct to block the airflow. In the cooling mode, 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 upper air duct wall 15 respectively to form an air duct surface.

[0076] In heating mode, air is vented from the lower air outlet, such as... Figure 4 As shown, the airflow enters the casing 1 from the top air inlet B and the side air inlet 321, passes through the heat exchanger 4, and then enters the cross-flow fan 22 through the air inlet duct at the upper end of the air duct structure 21. It then flows out through the air outlet duct at the lower end of the air duct structure 21 to the lower air outlet duct and out through the lower air outlet. In this embodiment, by setting an air duct baffle 5, in heating mode, the air duct baffle 5 rotates so that it abuts against the second upper air duct wall 16. Thus, after the airflow enters the casing and is heated by the heat exchanger 4, it can enter the air inlet duct of the air duct structure 21 under the action of the cross-flow fan 22. The air duct baffle 5 blocks the upper air outlet duct, preventing airflow from flowing out of the upper air outlet duct, thereby avoiding airflow loss. And as... Figure 2 As shown, in cooling 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 upper air duct wall 15 respectively, thereby forming an air duct surface, ensuring the sealing and integrity of the air duct surface.

[0077] The indoor unit of the air conditioner in this embodiment uses a duct baffle 5 to block airflow and prevent airflow loss in heating mode, and to form an air duct surface in cooling mode. Furthermore, in heating mode, both the duct baffle 5 and the first air guide plate 6 close the upper air duct, providing double insulation to prevent condensation.

[0078] In some embodiments, the outer wall surface of the volute tongue 212 is provided with a first limiting rib 2121, and the outer wall surface of the air duct baffle 5 is provided with a second limiting rib 51. In the second rotation position, the second limiting rib 51 abuts against the first limiting rib 2121 to prevent the air duct baffle 5 from continuing to rotate.

[0079] In heating mode, after the air duct structure 21 has rotated to its position, the air duct baffle 5 is then controlled to rotate to... Figure 4 The overlapping positions are shown. For example... Figure 4 As shown, since the 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 first limiting rib 2121 provided on the volute tongue 212 forms a rotation limit on the air duct baffle 5. Specifically, the second limiting rib 51 on the air duct baffle 5 overlaps the first limiting rib 2121 to prevent the air duct baffle 5 from rotating too much.

[0080] The first limiting rib 2121 provided on the outer wall surface of the volute tongue 212 in this embodiment not only improves the strength of the volute tongue 212 to prevent deformation of the volute tongue 212, but also further serves as a limiting structure to prevent the air duct baffle 5 from rotating too much, thereby limiting the position of the air duct baffle 5.

[0081] refer to Figure 2 and Figure 4 In some embodiments, the housing 1 further includes a front panel 14 disposed opposite to the rear panel 11. The front panel 14 is disposed between the top panel 12 and the bottom panel 13 to enclose and form a receiving cavity. The wall-mounted air conditioner indoor unit also includes a heat exchanger 4 and an air duct assembly 2 disposed sequentially in the thickness direction Y within the receiving cavity. The heat exchanger 4 is disposed close to the front panel 14. An air inlet is provided on the front panel 14. A front panel 3 is disposed on the front side of the front panel 14.

[0082] The technical solution of this application embodiment improves the structural reliability of the housing 1 by setting a front plate 14, in which the front plate 14, top plate 12, bottom plate 13 and rear plate 11 are arranged to form a receiving cavity. Moreover, an air inlet is provided on the front plate 14, and an air intake channel can be formed between the front panel 3 and the front plate 14.

[0083] In some embodiments, the front panel 14 is a perforated panel, which can reduce air intake resistance and improve the performance of the indoor unit while ensuring the structural strength of the casing 1.

[0084] Other embodiments of this application also provide an air conditioning system, including an outdoor air conditioning unit and the aforementioned wall-mounted indoor air conditioning unit.

[0085] The following is based on Figures 1 to 7 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.

[0086] like Figure 1As shown, the wall-mounted air conditioner indoor unit of this embodiment includes a casing 1, a front panel 3, an air duct assembly 2 disposed in the casing 1, a heat exchanger 4, an air duct baffle 5, a first air guide plate 6, a second air guide plate 7, a telescopic mechanism 8, and a limiting structure 9.

[0087] The housing 1 includes a rear plate 11, a top plate 12, a bottom plate 13, and a front plate 14. The length direction X, thickness direction Y, and height direction Z of the housing 1 are perpendicular to each other.

[0088] The axial direction of the air duct assembly 2 is approximately parallel to the length direction X of the housing 1.

[0089] like Figures 5 to 7 As shown, the front panel 3 in this embodiment is a bent plate, and the bend is an arc connection. The front panel 3 includes a main board segment 31 extending in the length direction X of the housing 1 and two bent plate segments 32 respectively disposed at both ends of the main board segment 31 in the length direction X. The bent plate segments 32 are connected to the main board segment 31 by an arc. When the power is off, the bent plate segments 32 at both ends are fitted against the outside of the side panel (not shown in the figure) of the housing 1. In cooling mode or heating mode, when the front panel 3 is movable relative to the housing 1 to open the bottom air inlet or the top air inlet, the bent plate segments 32 at both ends are located on both sides of the air inlet duct, so the side air inlets 321 disposed on the bent plate segments 32 also form air inlets.

[0090] In this embodiment, a ventilation grille is provided at the side air inlet 321.

[0091] like Figure 2 As shown, a bottom air inlet A is formed between the bottom of the front panel 3 and the casing 1, and an upper air outlet 121 is provided on the top plate 12. Figure 2 In the cooling mode shown, airflow enters from the bottom air inlet A and the side air inlet 321, and exits from the top air outlet 121; that is, air enters from the bottom and exits from the top. Figure 4 As shown, a top air inlet B is formed between the top of the front panel 3 and the top plate 12, and a bottom air outlet 131 is provided on the bottom plate 13. Figure 4 In the heating mode shown, airflow enters from the top air inlet B and the side air inlet 321, and exits from the bottom air outlet 131, meaning air enters from the top and exits from the bottom. The front panel 3 is movably configured to open one of the bottom air inlet A and the top air inlet B and close the other.

[0092] like Figures 2 to 4 As shown, the air duct assembly 2 includes an air duct structure 21 and a cross-flow fan blade 22. The air duct structure 21 includes an air duct wall 211 and a volute tongue 212.

[0093] Specifically, the axial ends of the air duct wall 211 and the volute tongue 212 are respectively connected to two turntables. Specifically, the air duct wall 211, the volute tongue 212, and the two turntables are integrally formed, for example, by injection molding. This ensures the integrity and strength of the air duct surface and avoids assembly gaps and inconsistencies in the position of the volute tongue and the air duct wall caused by assembly methods. Therefore, the integrated air duct design effectively solves problems such as deformation or inaccurate overlap during the rotation of the air duct structure, ensuring the consistency of the air duct, facilitating manufacturing, and improving assembly efficiency.

[0094] The air duct structure 21 has a first rotational position and a second rotational position during rotation. The air duct structure is located in the middle of the unit, and the air duct surface includes a volute tongue and an air duct wall, which are connected and fixed by turntables at both ends. This allows the volute tongue and the air duct wall to rotate together to the corresponding working position, and their relative positions remain unchanged.

[0095] like Figure 3 As shown, a first limiting rib 2121 is provided on the back of the volute tongue 212. The first limiting rib 2121 can strengthen the volute tongue, and more importantly, it mainly serves a limiting function. Figure 3 As shown, when the rotating air duct rotates to the fixed working position, it engages with the limiting structure on the unit to limit over-rotation and ensure the accuracy of the rotation position.

[0096] like Figure 3 As shown, a third limiting rib 52 is provided on the back of the air duct baffle 5. In the cooling mode, the third limiting rib 52 is used to abut against the limiting structure 9 to limit the position of the air duct baffle 5.

[0097] In this embodiment, the air duct structure 21 and air duct baffle 5 of the indoor unit of the air conditioner are rotatable and can be switched. At the same time, a stepper motor is used to drive the front panel 3 to move, thereby opening, closing and switching the air inlet. Then, by opening and closing the first air guide plate and the second air guide plate, the air outlet direction of the unit is switched, so that in the cooling mode, the airflow enters from the bottom and exits from the top, and in the heating mode, the airflow enters from the top and exits from the bottom, thereby improving the cooling and heating effect and improving human comfort.

[0098] When the unit is in heating mode, the duct structure 21 and the duct baffle 5 rotate to Figure 4 As shown, with the front panel 3 open facing upwards and the second air guide plate 7 open, airflow enters the unit from the top and side air inlets, is heated by the heat exchanger, and is blown out from the bottom air outlet. In this state, the hot airflow is blown diagonally downwards along the air duct and flows down the wall, resulting in a longer vertical air delivery distance. This avoids the situation where the top temperature is high and the bottom temperature is low, thus improving the heating effect.

[0099] When the unit is in cooling mode, the duct structure 21 and the duct baffle 5 rotate to Figure 2As shown, the front panel 3 is opened downwards and the first air guide plate 6 is open. At this position, airflow enters the unit from the bottom and side air inlets, is cooled by the heat exchanger, and then blows out diagonally upwards from the top air outlet. In this state, the cool air in the room flows from top to bottom, avoiding direct airflow onto people, effectively improving comfort. Simultaneously, because the airflow is diagonally forward, the air delivery height is higher, the air delivery range is wider, and the cooling effect is better.

[0100] like Figure 2 As shown, the indoor unit of the air conditioner in this embodiment includes two telescopic mechanisms 8 arranged in the height direction, specifically a first telescopic mechanism 81 and a second telescopic mechanism 82. When the top air inlet located at the top is to be opened, the first telescopic mechanism 81 is controlled to extend while the second telescopic mechanism 82 is controlled to retract; when the bottom air inlet located at the bottom is to be opened, the second telescopic mechanism 82 is controlled to extend while the first telescopic mechanism 81 is controlled to retract.

[0101] The structure of front panel 3 is as follows Figures 5 to 7 As shown, four mounting clips 33 are symmetrically arranged on the left and right sides of the front panel 3 for connecting with the corresponding four telescopic mechanisms on the unit, such as four push rods. The push rods are divided into upper and lower groups. By controlling the upper push rod to extend, the top air inlet can be opened. By controlling the lower push rod to extend, the bottom air inlet can be opened, thereby realizing the switching of the air inlet.

[0102] The front panel 3 features four diagonal grilles on each of its left and right sides. When the unit is operating, some airflow enters through the top air inlet, while the rest enters the heat exchanger through the left and right grilles for heat exchange. The side air inlets effectively increase the inlet area and improve airflow. Setting the grilles downwards at a 45° angle effectively directs airflow to the heat exchanger, reducing airflow resistance. Simultaneously, the diagonal grilles also provide a shielding effect; when the user is looking at the unit at an angle, the grilles obstruct the view of the internal structure, maintaining a harmonious and aesthetically pleasing appearance.

[0103] 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 in that, include: A housing (1) comprising a rear plate (11), a top plate (12), and a bottom plate (13), wherein the top plate (12) and the bottom plate (13) are spaced apart in the height direction (Z), and the rear plate (11) is disposed between the top plate (12) and the bottom plate (13). The top plate (12) has an upper air outlet (121), and the bottom plate (13) has a lower air outlet (131). The front panel (3) is movably disposed relative to the housing (1) such that the bottom end of the front panel (3) opens between the housing (1) to form a bottom air inlet (A) or the top end of the front panel (3) opens between the housing (1) to form a top air inlet (B). The front panel (3) is a bent plate, and the front panel (3) includes a main board segment (31) extending in the length direction (X) of the housing (1) and two bent plate segments (32) respectively disposed at both ends in the length direction (X) of the main board segment (31). At least one of the two bent plate segments (32) is provided with a side air inlet (321). The wall-mounted air conditioner indoor unit has a cooling mode and a heating mode. In the cooling mode, the bottom of the front panel (3) is opened between the bottom end and the casing (1) to form a bottom air inlet (A). Airflow enters the casing (1) through the bottom air inlet (A) and the side air inlet (321) and flows out through the top air outlet (121). In the heating mode, the top of the front panel (3) is opened between the top end and the casing (1) to form a top air inlet (B). Airflow enters the casing (1) from the top air inlet (B) and the side air inlet (321) and flows out through the bottom air outlet (131).

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, Each of the bent plate segments (32) is provided with a side air inlet (321).

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, A ventilation grille is provided at the side air inlet (321).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The ventilation grille includes a plurality of grille plates spaced apart in the height direction, the gap between two adjacent grille plates forming a ventilation opening, the grille plates being inclined and the inner end of the grille plates being configured to be closer to the base plate (13) than the outer end.

5. The wall-mounted air conditioner indoor unit according to any one of claims 1 to 4, characterized in that, The wall-mounted air conditioner indoor unit also includes at least two telescopic mechanisms (8) spaced apart in the height direction (Z) of the casing (1). The first end of the telescopic mechanism (8) is connected to the casing (1), and the second end of the telescopic mechanism (8) is connected to the front panel (3). The first end and the second end of the telescopic mechanism (8) are telescopically connected. A portion of the two telescopic mechanisms (8) retracts while the other portion extends to control the bottom or top end of the front panel (3) to leave the casing (1) to open the bottom air inlet (A) or the top air inlet (B).

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that, The telescopic mechanism includes a push rod.

7. The wall-mounted air conditioner indoor unit according to any one of claims 1 to 4, characterized in that, The wall-mounted air conditioner indoor unit further includes a first air guide plate (6) disposed at the upper air outlet (121), the first air guide plate (6) being rotatably disposed to open or close the upper air outlet (121), and the rotation axis of the first air guide plate (6) being located at the end of the upper air outlet (121); and / or, the wall-mounted air conditioner indoor unit further includes a second air guide plate (7) disposed at the lower air outlet (131), the second air guide plate (7) being rotatably disposed to open or close the lower air outlet (131), and the rotation axis of the second air guide plate (7) being located at the end of the lower air outlet (131).

8. The wall-mounted air conditioner indoor unit according to any one of claims 1 to 4, characterized in that, The wall-mounted air conditioner indoor unit also includes a duct assembly (2) disposed within the casing (1). The duct assembly (2) includes a duct structure (21) and a cross-flow fan blade (22) disposed within the duct structure (21). The duct structure (21) includes a duct wall (211) and a volute (212). The duct structure (21) is configured to be rotatable to switch between a first rotation position and a second rotation position. In the cooling mode, the duct structure (21) rotates to the first rotation position so that the airflow entering the casing (1) flows through the duct structure to the upper air outlet (121). In the heating mode, the duct structure (21) rotates to the second rotation position so that the airflow entering the casing (1) flows through the duct structure to the lower air outlet (131).

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that, The wall-mounted air conditioner indoor unit also includes a first upper air duct wall (15), a second upper air duct wall (16), and an air duct baffle (5) disposed in the casing (1). The first upper air duct wall (15) and the second upper air duct wall (16) are respectively located on the front and rear sides of the upper air outlet (121) to form a lower air outlet. The air duct baffle (5) is rotatable relative to the casing (1). In the heating mode, the air duct baffle (5) rotates so that the air duct baffle (5) abuts against the second upper air duct wall (16) and covers the air outlet surface of the upper air outlet to block the airflow. In the cooling mode, 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 upper air duct wall (15) respectively to form an air duct surface.

10. The wall-mounted air conditioner indoor unit according to claim 9, characterized in that, The outer wall of the volute tongue (212) is provided with a first limiting rib (2121) and the outer wall of the air duct baffle (5) is provided with a second limiting rib (51). In the second rotation position, the second limiting rib (51) abuts against the first limiting rib (2121) to prevent the air duct baffle (5) from continuing to rotate.

11. The wall-mounted air conditioner indoor unit according to any one of claims 1 to 4, characterized in that, The housing (1) also includes a front plate (14) disposed opposite to the rear plate (11). The front plate (14) is disposed between the top plate (12) and the bottom plate (13) to enclose and form a receiving cavity. The wall-mounted air conditioner indoor unit also includes a heat exchanger (4) and an air duct assembly (2) disposed sequentially in the thickness direction (Y) inside the receiving cavity. The heat exchanger (4) is disposed close to the front plate (14). An air inlet is disposed on the front plate (14). The front panel (3) is disposed on the front side of the front plate (14).

12. An air conditioning system, characterized in that, It includes an outdoor air conditioning unit and a wall-mounted indoor air conditioning unit as described in any one of claims 1 to 11.

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