Wall-mounted air conditioner indoor unit

Abstract

The application provides a wall-mounted air conditioner indoor unit, which comprises a casing and a flow dividing member. The casing comprises a partition strip, a volute tongue and a volute casing arranged in front and back, the partition strip is located below the front end of the volute tongue and in front of the lower end of the volute casing, so as to define an air duct together with the volute tongue and the volute casing, the partition strip and the front end of the volute tongue define a first air outlet facing forward, and the partition strip and the lower end of the volute casing define a second air outlet facing downward. The flow dividing member is arranged on the front side of the first air outlet, so that the air flow of the first air outlet blows towards the flow dividing member, and is guided by the rear surface of the flow dividing member to blow towards the edge of the flow dividing member and then to the indoor environment in a diverging manner; and the rear side of the partition strip has an upwardly inclined upwardly inclined surface gradually inclined upwardly from back to front, so as to guide the air flow towards the upper region of the rear surface of the flow dividing member. The wall-mounted air conditioner indoor unit has the advantages of uniform and dispersed air supply and can solve the problem of human blowing in the refrigeration mode.

Description

Technical Field

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

[0002] Existing wall-mounted air conditioner indoor units typically have a long strip-shaped air outlet on the lower front side of the casing, with the outlet facing downwards and forwards. A guide vane is installed at the outlet to guide the vertical airflow.

[0003] Based on this, some existing technologies have made many improvements to the air outlet structure. However, due to the constraints of the air outlet's orientation, the air supply direction, air supply range, and air supply distance of the air conditioner are still greatly limited. In particular, the problem of cold air blowing into people during cooling is difficult to solve, affecting the user experience. Summary of the Invention

[0004] One object of the present invention is to overcome or at least partially solve the above-mentioned problems, and to provide a wall-mounted air conditioner indoor unit that can uniformly distribute airflow and solve the problem of cold air blowing into people.

[0005] A further objective of this invention is to appropriately increase the flow rate of the upstream branch of the splitter to increase the air volume for long-distance air delivery.

[0006] Specifically, the present invention provides a wall-mounted air conditioner indoor unit, comprising:

[0007] The housing includes a partition strip and a volute tongue and a volute shell arranged in a front-to-back manner. The partition strip is located below the front end of the volute tongue and in front of the lower end of the volute shell, so as to define an air duct together with the volute tongue and the volute shell. The partition strip and the front end of the volute tongue define a first air outlet facing forward, and the partition strip and the lower end of the volute shell define a second air outlet facing downward.

[0008] A diverter is disposed in front of the first air outlet so that the airflow from the first air outlet is directed toward the diverter and, guided by the rear surface of the diverter, diffuses towards the edge of the diverter and into the indoor environment; and

[0009] The rear side of the separator has an upward-sloping surface that gradually slopes upward from back to front, so as to guide the airflow toward the upper region of the rear surface of the diverter.

[0010] Optionally, the front side of the separator has a gradually expanding surface that slopes downwards from back to front.

[0011] Optionally, the separator includes:

[0012] Top surface;

[0013] The expanding surface extends forward and downward from the front end of the top face;

[0014] The front end extends vertically downward from the lower end of the gradually widening surface;

[0015] The upward-facing surface extends from the rear end of the top surface downwards and backwards;

[0016] The rear end face extends vertically downward from the lower end of the upward-facing face; and

[0017] The bottom surface is connected to the lower end of the front end surface and the lower end of the rear end surface at the front and rear ends, respectively.

[0018] Optionally, both the expanding surface and the rising surface are concave arc surfaces with their axes extending along the length of the housing.

[0019] Optionally, the section where the volute tongue connects to the first air outlet is a gradually expanding air outlet section that slopes upwards from back to front.

[0020] Optionally, the volute tongue comprises, from its inlet end to its outlet end, the following components in sequence:

[0021] The air inlet section extends rearward and downward from the inlet end;

[0022] The middle section extends forward and downward from the end of the air intake section; and

[0023] The air outlet section extends forward and upward from the end of the middle section.

[0024] Optionally, the diverter is configured to be able to translate back and forth to adjust its distance from the first air outlet; and is configured to be movable to a position where its rear surface abuts against the expanding surface and the air outlet section to close the first air outlet.

[0025] Optionally, a guide vane is provided at the second air outlet; and

[0026] When the air guide plate is in the closed state, the upward-facing surface is concave and curved, so that when the air guide plate is in the open state, the airflow is directed to the lower surface of the separator.

[0027] Optionally, the surface of the diverter facing at least the first air outlet is a convex curved surface to facilitate guiding the airflow toward its edge.

[0028] Optionally, the two surfaces of the diverter facing the first air outlet and away from the first air outlet are both convex curved surfaces, and the junction of the two surfaces forms two apexes, making the cross-sectional outline of the diverter "olive-shaped"; and

[0029] The outwardly convex curved surface of the diverter facing the first air outlet is formed by two segments of arc surfaces, while the outwardly convex curved surface facing away from the first air outlet is a segment of arc surface.

[0030] In the wall-mounted air conditioner indoor unit of this invention, the first air outlet opens forward and the second air outlet opens downward, thus expanding the overall airflow angle range of the air conditioner. A diverter is provided on the front side of the first air outlet, guiding the airflow towards the edge of the diverter and dispersing it towards the indoor environment. This makes the airflow more dispersed and expands its diffusion range, resulting in faster cooling / heating speeds, more uniform temperature changes throughout the room, and smaller temperature differences. The dispersed airflow avoids strong drafts towards the human body and is closer to natural wind, making people feel more comfortable. The airflow flowing upward along the diverter (upper branch) rises for long-distance air delivery, while the airflow flowing downward along the diverter (lower branch) sinks for short-distance air delivery. The combination of these two flows expands the air delivery range. Furthermore, the rear side of the divider has an upward-sloping surface that gradually slopes from back to front, guiding the airflow towards the upper area of ​​the rear surface of the diverter, increasing the flow rate of the upper branch and thus enabling greater air volume for long-distance air delivery.

[0031] Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the surface of the air distribution component facing the first air outlet is a convex curved surface. After the airflow impacts the convex curved surface, it diffuses along the edge of the convex curved surface, making the airflow turning angle smaller, the airflow turning more gentle, and the airflow loss and noise less.

[0032] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0033] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0034] Figure 1 This is a schematic diagram of the structure of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A schematic enlarged sectional view of the indoor unit of the wall-mounted air conditioner shown.

[0036] Figure 3 yes Figure 2 A schematic enlarged view of the separator bars in the diagram;

[0037] Figure 4 yes Figure 2 The diagram shows the indoor unit of a wall-mounted air conditioner when the first air outlet is opened by the air distribution component.

[0038] Figure 5 yes Figure 2The diagram shows the indoor unit of a wall-mounted air conditioner in down-blowing mode.

[0039] Figure 6 yes Figure 2 The diagram shows the indoor unit of a wall-mounted air conditioner operating in maximum airflow mode.

[0040] Figure 7 This is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to another embodiment of the present invention;

[0041] Figure 8 yes Figure 7 A schematic enlarged view of the center divider;

[0042] Figure 9 This is a schematic diagram of the drive mechanism of the diverter. Detailed Implementation

[0043] The following reference Figures 1 to 9 This description refers to a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. The terms "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Arrows in the figures indicate the direction of airflow.

[0044] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," etc., may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically stated, this indicates that other features are not excluded and may be further included.

[0045] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "coupling," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] This invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is the indoor section of a split-type wall-mounted room air conditioner, used to regulate indoor air, such as cooling / heating, dehumidifying, and introducing fresh air.

[0047] Figure 1 This is a schematic diagram of the structure of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic enlarged sectional view of the indoor unit of the wall-mounted air conditioner shown. Figure 3 yes Figure 2 A schematic enlarged view of the separator bars in the diagram; Figure 4 yes Figure 2 The diagram shows the indoor unit of a wall-mounted air conditioner when the first air outlet is opened by the air distribution component.

[0048] like Figures 1 to 4 As shown, the wall-mounted air conditioner indoor unit of this embodiment generally includes a housing 10 and a distribution element 30.

[0049] The housing 10 includes a skeleton forming the basic framework of the indoor unit and body components such as a volute and volute tongue defining the air outlet duct; it is not merely an air conditioner casing. Specifically, in addition to the elongated skeleton portion, the housing 10 also includes a partition strip 23 and volute tongues 21 and volute shells 22 arranged front to back. The partition strip 23 is located below the front end of the volute tongue 21 and in front of the lower end of the volute shell 22, thus defining the air outlet 20 together with the volute tongue 21 and volute shell 22. The air outlet 20 is a cross-flow air outlet. The partition strip 23 and the front end of the volute tongue 21 define a forward-facing first air outlet 11, and the partition strip 23 and the lower end of the volute shell 22 define a downward-facing second air outlet 12.

[0050] like Figure 1 As shown, the housing 10 can be a long strip extending horizontally, with a roughly quadrilateral cross-section. The housing 10 may include a top wall, a front wall, a rear wall, a bottom wall, and two transverse end walls, with its rear wall abutting against and hanging on an indoor wall. The transverse or length direction of the housing 10 is marked with x in the figure. The first air outlet 11, the second air outlet 12, the partition strip 23, the volute tongue 21, and the volute 22 can all be long strips with their length direction parallel to the length direction x of the housing 10.

[0051] The first air outlet 11 and the second air outlet 12 are used to blow airflow from inside the casing 10 into the room to regulate the indoor air. The aforementioned airflow can be cold air produced by the indoor unit of the wall-mounted air conditioner in cooling mode, hot air produced in heating mode, or fresh air introduced in fresh air mode, etc.

[0052] The wall-mounted air conditioner indoor unit can be an indoor unit of an air conditioner that uses a vapor compression refrigeration cycle system for cooling / heating. It also includes a heat exchanger 40 and a cross-flow fan 50. The heat exchanger 40 is located inside the casing 10 and is used to exchange heat with the airflow flowing through it to form a heat exchange airflow, i.e., cold air or hot air. It can be a three-section finned heat exchanger. The cross-flow fan 50 is located inside the casing 10 and at the inlet of the air duct 20. It is used to drive indoor air into the casing 10 through the air inlet 13 at the top of the casing 10, so that it can complete heat exchange with the heat exchanger 40 to become a heat exchange airflow. Then, it drives the heat exchange airflow through the air duct 20 to the first air outlet 11 and the second air outlet 12, and finally blows it into the room from the first air outlet 11 and the second air outlet 12.

[0053] like Figure 4 As shown, the air diverter 30 is positioned in front of the first air outlet 11, so that the airflow from the first air outlet 11 blows towards the air diverter 30, and then, guided by the rear surface of the air diverter 30, diffuses towards the edge of the air diverter 30 into the indoor environment. This makes the airflow more dispersed and the diffusion range wider, resulting in faster indoor cooling / heating, more uniform temperature changes throughout the room, and smaller temperature differences. The dispersed airflow does not blow forcefully onto people and is closer to natural wind, making people feel more comfortable. Specifically, as... Figure 4 The diverter 30 can be a rod-shaped component parallel to the length of the casing 10. The airflow will flow upward and downward under the guidance of the rear surface of the diverter 30. The airflow flowing upward along the rear surface of the diverter 30 (upper branch) rises and is used for long-distance air delivery, while the airflow flowing downward along the rear surface of the diverter 30 (lower branch) sinks and is used for short-distance air delivery. The two air delivery paths work together to expand the air delivery range.

[0054] like Figure 3 and Figure 4 As shown, the rear side of the separator 23 has an upward-sloping surface 233 that gradually slopes upward from back to front, guiding the airflow towards the upper region of the rear surface of the diverter 30. This increases the flow rate of the branch above the diverter 30, thereby increasing the air volume for long-distance air delivery and compensating for the adverse effects of the diverter 30 on long-distance air delivery.

[0055] Existing wall-mounted air conditioner indoor units primarily focus on increasing the air delivery distance or enhancing the direction of the airflow to direct it to a designated area, thus avoiding human contact. This embodiment creatively changes this approach, diffusing the airflow in multiple directions (at least two) immediately after it exits the first air outlet 11. This avoids a strong, direct forward airflow, thus both avoiding human contact and allowing for a wider diffusion range of cooling / heat, reducing indoor temperature differences. Furthermore, this embodiment uses a diverter 30 instead of a conventional air guide plate. By diverting the airflow, the airflow velocity is reduced, preventing uneven temperature distribution and condensation caused by insufficient cooling of the air guide plate and the casing 10 due to excessively high velocity. Additionally, the diverter 30 can be surface-treated to increase its hydrophobic properties, further preventing condensation.

[0056] In some embodiments, such as Figure 3 and Figure 4 As shown, the front side of the separator 23 has a gradually expanding surface 232 that slopes downwards from back to front. The expanding surface 232 can better guide the airflow of the downstream branch downwards, allowing it to sink and be blown out more effectively. In addition, the section where the volute tongue 21 connects with the first air outlet 11 is a gradually expanding air outlet section (sa) that slopes upwards from back to front, so as to better guide the airflow of the upstream branch upwards, allowing it to rise and be blown out more effectively, and the rising airflow is delivered over a longer distance.

[0057] Figure 3 This illustrates one possible shape for the divider. For example... Figure 3 As shown, the partition strip 23 specifically includes a top surface 231, a gradually widening surface 232, a front end surface 234, an upward-facing surface 233, a rear end surface 235, and a bottom surface 236. The top surface 231 faces upward and forms the top of the partition strip 23. The gradually widening surface 232 extends forward and downward from the front end of the top surface 231. The front end surface 234 extends vertically downward from the lower end of the gradually widening surface 232 to form the front appearance of the partition strip 23. The upward-facing surface 233 extends backward and downward from the rear end of the top surface 231. The rear end surface 235 extends vertically downward from the lower end of the upward-facing surface 233 to define the second air outlet 12 together with the volute 22. The front and rear ends of the bottom surface 236 are respectively connected to the lower ends of the front end surface 234 and the rear end surface 236. The top surface 231, the expanding surface 232, the front surface 234, the rising surface 233, the rear surface 235, and the bottom surface 236 together form the complete circumferential surface of the partition strip 23, and the two ends of the partition strip 23 in the length direction are connected to the rest of the housing 10. In order to smoothly guide the airflow and facilitate design and manufacturing, the expanding surface 232 and the rising surface 233 can both be concave arc surfaces with their axes extending along the length direction of the housing 10. Figure 7 This is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to another embodiment of the present invention. Figure 8 yes Figure 7A schematic enlarged view of the center divider.

[0058] The shape of the separator 23 in this embodiment is compared to Figure 3 The dividing strip is somewhat deformed; in this embodiment, the arc length of the gradually expanding surface 232 is shorter than the arc length of the upward-facing surface 233. Figures 1 to 6 In the illustrated embodiment, the arc length of the expanding surface 232 is greater than the arc length of the rising surface 233. The longer the arc length of the rising surface 233, the stronger its guiding effect on airflow, resulting in a larger volume of rising airflow. Therefore, the specific dimensions of the dividing strip 23 can be adjusted as needed to regulate the volume of rising airflow.

[0059] Figure 2 This illustrates one possible structure of the cochlear tongue, such as... Figure 2 As shown, the volute tongue 21 comprises, from its inlet end to its outlet end, an inlet section (kc), a middle section (cs), and an outlet section (sa). The inlet section (kc) extends downwards and backwards from the inlet end (k). The middle section (cs) extends downwards and forwards from the end (c) of the inlet section (kc). The outlet section (sa) extends upwards and forwards from the end (s) of the middle section (cs). The volute casing 22 is located behind the volute tongue 21 and has a curved structure with its concave side facing forward. This design allows for rounded transitions between sections, resulting in a smoother change in airflow direction and reduced flow losses.

[0060] In some embodiments, reference Figure 2 and Figure 4 The diverter 30 can be configured to move back and forth to adjust its distance from the first air outlet 11, thereby adjusting the airflow of the first air outlet 11. It is understood that the closer the diverter 30 is to the first air outlet 11, the more obstructed the airflow from the first air outlet 11 becomes, and the smaller its airflow, but the stronger the diverter 30's effect on the airflow direction (causing the airflow to turn towards its edge). Conversely, the farther the diverter 30 is from the first air outlet 11, the smoother the airflow from the first air outlet 11 becomes, and the larger the airflow, but the weaker its effect on the airflow direction. Furthermore, the diverter 30 can be configured to move so that its rear surface abuts against the expanding surface 232 and the outlet section (sa) to close the first air outlet 11, such as... Figure 2 To prevent dust and other foreign objects from entering the casing 10 through the first air outlet 11. Furthermore, when the indoor unit of the wall-mounted air conditioner is in a non-operating state such as power off or standby, the distributor 30 is moved to the closed state, causing it to be "embedded" inward at the first air outlet 11, preventing it from being completely outside the first air outlet 11 and affecting aesthetics. For example, when the distributor 30 is olive-shaped, and its surface facing the first air outlet 11 is an outwardly convex curved surface 32, the air outlet section sa and the gradually expanding surface 232 are both concave curved surfaces to match it.

[0061] In some embodiments, such as Figure 2 and Figure 4 As shown, the surface of the diverter 30 facing at least the first air outlet 11 can be a convex curved surface 32 to facilitate guiding the airflow towards the edge of the diverter 30. Specifically, if the surface of the diverter 30 facing the first air outlet 11 were flat, the airflow would be turned 90° after being blown vertically onto the surface before spreading along the surface towards the edge. In this embodiment, the surface is a convex curved surface. After the airflow impacts the convex curved surface 32, it spreads along the convex curved surface 32 towards the edge. The airflow turns less than 90°. During the turning process, the convex shape of the convex curved surface 32 makes the direction change relatively gentler, and the airflow loss and noise are reduced.

[0062] The flow divider 30 has two convex curved surfaces (rear and front surfaces) facing and away from the first air outlet 11, namely convex curved surface 32 and convex curved surface 31, respectively. The junction of the two surfaces forms two tops A1 and A2. The two tops A1 and A2 can be rounded, so that the cross-sectional shape (the cross-section perpendicular to the x-axis) of the flow divider 30 forms an "olive shape". This structure of the flow divider 30 is relatively simple, easy to manufacture, and also makes its appearance more beautiful.

[0063] More specifically, the convex curved surface 32 of the diverter 30 facing the first air outlet 11 can be formed by two arc surfaces CA1 and CA2 joined together, so that the convex curved surface 32, especially its midpoint C, protrudes further outward, thereby more evenly splitting the airflow blowing towards it to both sides of point C. The convex curved surface 31 facing away from the first air outlet 11 can be an arc surface, just enough to satisfy aesthetics and ease of manufacturing. Furthermore, the radii R1, R2 and lengths of the arc surfaces CA1 and CA2 at both ends of the convex curved surface 32 can be made equal, so that the airflow towards both tends to be equal. Of course, the cross-sectional outline of the diverter 30 can also be elliptical or other irregular shapes, which will not be elaborated here.

[0064] In some alternative embodiments, if both the first air outlet and the diverter are circular, the convex curved surface can be spherical, which will not be described in detail here.

[0065] Figure 5 yes Figure 2 The diagram shows the indoor unit of a wall-mounted air conditioner in down-blowing mode. Figure 6 yes Figure 2 The diagram shows the indoor unit of a wall-mounted air conditioner operating in maximum air supply mode.

[0066] like Figures 4 to 6 As shown, a guide vane 60 may be installed at the second air outlet 12. The function of the guide vane 60 is to guide the direction of the airflow from the second air outlet 12 and to open and close the second air outlet 12.

[0067] The embodiments of the present invention provide at least the following air supply modes for users to select, as detailed below:

[0068] Forward airflow mode: such as Figure 4 As shown, the air distribution element 30 moves forward to open the first air outlet 11, and the air guide plate 60 closes the second air outlet 12 or opens the second air outlet 12 at a small angle to avoid condensation, so that air is distributed forward from the first air outlet 11. When the air conditioner is running in cooling mode, air can be supplied according to this air supply mode.

[0069] Downward airflow mode: such as Figure 5 As shown, the control unit 30 closes the first air outlet 11, causing the air guide plate 60 to open the second air outlet 12. Guided by the air guide plate 60, air is delivered downwards from the second air outlet 12. When the air conditioner is in heating mode, air can be delivered in a downward airflow mode to accelerate the heating speed.

[0070] Maximum airflow mode: such as Figure 6 As shown, both the first air outlet 11 and the second air outlet 12 are opened, and air is discharged from both at the same time to maximize the air volume.

[0071] In some embodiments, such as Figure 7 As shown, the upward-facing surface 61 of the air guide plate 60 when it is closed is concave and curved, so that when the air guide plate 60 is open, it directs the airflow to the lower surface of the partition strip 23. This ensures that airflow passes over the lower surface of the partition strip 23, which would otherwise be difficult to pass through, thus preventing condensation in cooling mode. Specifically, the entire air guide plate 60 can be an arc-shaped plate with its axis parallel to the length of its casing 10.

[0072] Figure 9 This is a schematic diagram of the drive mechanism of the diverter. Figures 2-8 To better illustrate the airflow path, the drive mechanism has been omitted. Figure 9 For better illustration of the drive mechanism, air guide plates 61 and 62 have been omitted.

[0073] In some embodiments, such as Figure 9 As shown, the drive mechanism for driving the diverter 30 to translate back and forth is a rack and pinion mechanism, which is mounted on the lateral side of the housing 10 so as not to affect the airflow. The drive mechanism includes a rack 71 extending in the front-back direction and fixed to the diverter 30, a gear 72 meshing with the rack 71, and a motor 73 for driving the gear 72 to rotate and drive the rack 71 to translate back and forth. The motor 73 can be fixed to the housing 10, and the rack 71 can be slidably mounted to the housing 10 in the front-back direction. The motor 73 can be controlled to rotate in both directions so that the diverter 30 can reciprocate in the front-back direction. The motor 73 can be a stepper motor. In addition, another motor can be provided to drive the diverter 30 to rotate.

[0074] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that... include: The housing includes a partition strip and a volute tongue and a volute shell arranged in a front-to-back manner. The partition strip is located below the front end of the volute tongue and in front of the lower end of the volute shell, so as to define an air duct together with the volute tongue and the volute shell. The partition strip and the front end of the volute tongue define a first air outlet facing forward, and the partition strip and the lower end of the volute shell define a second air outlet facing downward. A diverter is disposed in front of the first air outlet so that the airflow from the first air outlet blows toward the diverter and, guided by the rear surface of the diverter, diffuses toward the edge of the diverter and into the indoor environment. and The rear side of the separator has an upward-sloping surface that gradually slopes upward from back to front, so as to guide the airflow toward the upper region of the rear surface of the diverter. The front side of the separator has a gradually expanding surface that slopes downwards from back to front, and the arc length of the expanding surface is shorter than the arc length of the upward-sloping surface. The section where the volute tongue connects to the first air outlet is a gradually expanding air outlet section that slopes upwards from back to front. The diverter is configured to be able to translate back and forth to adjust its distance from the first air outlet; and is configured to be movable to a position where its rear surface abuts against the expanding surface and the air outlet section to close the first air outlet. The two surfaces of the diverter facing the first air outlet and away from the first air outlet are both convex curved surfaces.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The separator includes: Top surface; The expanding surface extends forward and downward from the front end of the top face; The front end extends vertically downward from the lower end of the gradually widening surface; The upward-facing surface extends from the rear end of the top surface downwards and backwards; The rear end face extends vertically downward from the lower end of the upward-facing face; and The bottom surface is connected to the lower end of the front end surface and the lower end of the rear end surface at the front and rear ends, respectively.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, Both the gradually expanding surface and the upward-facing surface are concave arc surfaces whose axes extend along the length of the housing.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The volute tongue, from its inlet end to its outlet end, comprises: The air inlet section extends rearward and downward from the inlet end; The middle section extends forward and downward from the end of the air intake section; and The air outlet section extends forward and upward from the end of the middle section.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, A guide vane is provided at the second air outlet; and When the air guide plate is in the closed state, the upward-facing surface is concave and curved, so that when the air guide plate is in the open state, the airflow is directed to the lower surface of the separator.

6. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The surface of the diverter facing at least the first air outlet is a convex curved surface to facilitate guiding the airflow toward its edge.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The junction of the two parts forms two apexes, giving the cross-sectional outline of the diverter an "olive shape"; and The outwardly convex curved surface of the diverter facing the first air outlet is formed by two segments of arc surfaces, while the outwardly convex curved surface facing away from the first air outlet is a segment of arc surface.

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