Wall-mounted air conditioner indoor unit

Abstract

The application provides a wall-mounted air conditioner indoor unit, which comprises a casing, a flow dividing member and a plurality of air deflectors. The casing is provided with a forward first air outlet and a downward second air outlet. The flow dividing member is arranged on the outer side of the first air outlet at intervals from the first air outlet, so that the air flow of the first air outlet blows towards the flow dividing member, and then blows towards the edge of the flow dividing member in a diverging manner under the guidance of the rear surface of the flow dividing member to blow towards the indoor environment. The plurality of air deflectors are arranged side by side in the front-rear direction at the second air outlet. The wall-mounted air conditioner indoor unit has the advantages of uniform and dispersed air supply and can solve the problem of human blowing.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to a wall-mounted air conditioner indoor unit. BACKGROUND

[0002] The existing wall-mounted air conditioner indoor unit usually has a long strip-shaped air outlet at the lower part of the front side of the casing, the air outlet faces the lower front, and a deflector is arranged at the air outlet to guide the up-down air supply direction.

[0003] On this basis, some existing technologies have made many improvements to the air outlet structure, but due to the constraint of the direction of the air outlet itself, the air supply direction, range and distance of the air conditioner are still greatly limited, especially the problem of cold air blowing on people during cooling is difficult to solve, which affects the user experience. SUMMARY

[0004] An object of the present application is to overcome the above problems or at least partially solve the above problems, and provide a wall-mounted air conditioner indoor unit with uniform and dispersed air supply and the problem of cold air blowing on people during cooling.

[0005] A further object of the present application is to prevent condensation from occurring on the lower surface of the partition strip.

[0006] In particular, the present application provides a wall-mounted air conditioner indoor unit, comprising:

[0007] a casing having a first air supply opening facing forward and a second air supply opening facing downward;

[0008] a flow dividing member arranged in front of the first air supply opening and spaced from the first air supply opening, so that the air flow of the first air supply opening blows towards the flow dividing member, and then diverges towards the edge of the flow dividing member under the guidance of the rear surface of the flow dividing member to blow towards the indoor environment; and

[0009] a plurality of deflectors arranged side by side in the front-rear direction at the second air supply opening.

[0010] Optionally, the first air supply opening and the second air supply opening are long strips with their length directions parallel to the length direction of the casing, the flow dividing member is a rod parallel to the length direction of the casing, and the rotation axis of each deflector is parallel to the length direction of the casing.

[0011] Optionally, the casing comprises a partition strip and a front-rear arrangement of a volute tongue and a volute casing, 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; and

[0012] the partition strip and the front end of the volute tongue define the first air supply opening, and the partition strip and the lower end of the volute casing define the second air supply opening.

[0013] Optionally, the uppermost surface of the louvers is concave when the louvers are in the closed state, so that the louvers are in the open state, the air flow is guided to the lower surface of the partition strip.

[0014] Optionally, the air duct has a gradually expanding outlet connected with the first air outlet and gradually increasing in flow cross section along the air flow direction.

[0015] Optionally, the volute tongue comprises, in sequence from the inlet end to the outlet end:

[0016] an air inlet section extending rearward and downward from the inlet end;

[0017] an intermediate section extending forward and downward from the end of the air inlet section; and

[0018] an air outlet section extending forward and upward from the end of the intermediate section; and

[0019] the upper surface of the partition strip gradually extends downward from rear to front, so as to form a gradually expanding outlet of the air duct together with the air outlet section.

[0020] Optionally, the flow divider is movably mounted on the cabinet, so as to adjust the relative position thereof with the first air outlet.

[0021] Optionally, the flow divider is configured to be translatable in the front-rear direction and swingable about the upper end or the lower end thereof in the front-rear direction, the rotation axis being parallel to the length direction of the flow divider.

[0022] Optionally, at least the surface of the flow divider facing the first air outlet is an outwardly convex curved surface, so as to facilitate guiding the air flow toward the edge thereof.

[0023] Optionally, both the surface of the flow divider facing the first air outlet and the surface thereof facing away from the first air outlet are outwardly convex curved surfaces, and the two surfaces form two top ends at the joint therebetween, so that the cross-sectional profile of the flow divider forms an “olive shape”.

[0024] The outwardly convex curved surface of the flow divider facing the first air outlet is formed by two arc surfaces, and the outwardly convex curved surface of the flow divider facing away from the first air outlet is an arc surface.

[0025] In the wall-mounted air conditioner indoor unit of the present application, the first air outlet is open forwardly and the second air outlet is open downwardly, so that the air supply angle range of the air conditioner body is larger. The outer side of the first air outlet is provided with a flow dividing member, which can guide the air flow to be blown to the edge of the flow dividing member and then to the indoor environment, so that the air flow is more dispersed and the diffusion range is larger, thereby making the indoor refrigeration / heating speed faster and the temperature change more uniform and the temperature difference smaller. After the air flow is blown out, it will not blow strongly to the human body, and it is closer to natural wind, so that people feel more comfortable. Moreover, the second air outlet is provided with a plurality of independently controlled air deflectors, so as to adjust the air volume ratio of the two air outlets by adjusting the opening and closing of each air deflector.

[0026] Further, in the wall-mounted air conditioner indoor unit of the present application, when the frontmost air deflector is in the closed state, the upward surface thereof is concave, so that when the air deflector is in the open state, the air flow is guided to the lower surface of the partition strip, thereby avoiding condensation on the lower surface of the partition strip.

[0027] Further, in the wall-mounted air conditioner indoor unit of the present application, the flow dividing member is movably installed on the cabinet, so that the relative position of the flow dividing member and the first air outlet can be adjusted, thereby adjusting the air volume, air direction and other parameters of the air flow. Further, the flow dividing member can be translated in the front-rear direction and can be swung in the front-rear direction around the upper end or the lower end thereof, so that the flow dividing member can only blow air downwardly or only blow air upwardly, and the air volume can be adjusted.

[0028] Further, in the wall-mounted air conditioner indoor unit of the present application, the surface of the flow dividing member facing the first air outlet is an outwardly convex curved surface. After the air flow hits the outwardly convex curved surface, it is diffused along the outwardly convex curved surface to the edge, so that the air flow turning angle is smaller, the air flow turning is more gentle, and the air flow loss and noise are smaller.

[0029] Further, in the wall-mounted air conditioner indoor unit of the present application, the air duct has a gradually expanding outlet connected with the first air outlet and having a gradually increasing flow cross section along the air flow direction. This outlet shape makes the air flow begin to diffuse to the edge before flowing out of the first air outlet, which is more beneficial to the diffusion of the air flow.

[0030] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in different drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0032] Figure 1Fig. 1 is a structural schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present application;

[0033] Figure 2 Fig. 2 is a schematic cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown in Fig. 1; Figure 1

[0034] Figure 3 Fig. 3 is a schematic view of the wall-mounted air conditioner indoor unit shown in Fig. 1 when a first air outlet is opened by a flow dividing member; Figure 2

[0035] Figure 4 Fig. 4 is a schematic view of the wall-mounted air conditioner indoor unit shown in Fig. 1 when a lower blowing mode is operated; Figure 2

[0036] Figure 5 Fig. 5 is a schematic view of the wall-mounted air conditioner indoor unit shown in Fig. 1 when a maximum air supply mode is operated; Figure 2

[0037] Figure 6 Fig. 6 is a schematic view of a driving mechanism of the flow dividing member. DETAILED DESCRIPTION

[0038] The wall-mounted air conditioner indoor unit according to an embodiment of the present application will be described below with reference to the accompanying drawings. In the description of the present application, the terms "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "lateral" and the like indicate the orientation or positional relationship shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the drawings, arrows schematically indicate the flow direction of air. Figures 1 to 6 The terms "first", "second", and the like are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or comprises" a certain or certain features, unless otherwise specifically described, this indicates that other features are not excluded and can further include other features.

[0039]

[0040] ​​​​​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.

[0041] 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.

[0042] 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 The diagram shows the indoor unit of the wall-mounted air conditioner when the first air outlet 11 is opened by the air distribution component 30.

[0043] like Figures 1 to 3 As shown, the wall-mounted air conditioner indoor unit of this embodiment generally includes a casing 10, a flow divider 30, and multiple air guide plates 61 and 62.

[0044] The casing 10 has a forward-facing first air outlet 11 and a downward-facing second air outlet 12. The casing 10 is designed to be mounted on an indoor wall. Figure 1 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 the rear wall abutting against an interior wall. A first air outlet 11 may be located at the bottom of the front wall of the housing 10, and a second air outlet 12 may be located at the front of the bottom wall of the housing 10. The transverse or length direction of the housing 10 is represented by x in the figure.

[0045] 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.

[0046] The wall-mounted air conditioner indoor unit can be an indoor unit of an air conditioner for refrigeration / heat by a vapor compression refrigeration cycle system, which further comprises a heat exchanger 40 and a cross-flow fan 50. The heat exchanger 40 is arranged in the cabinet 10 for heat exchange with the air flow passing therethrough to form a heat exchange air flow, i.e. cold air or hot air, which can be a three-stage fin heat exchanger. The cross-flow fan 50 is arranged in the cabinet 10 for promoting the indoor air to enter the cabinet 10 through the top air inlet 13 of the cabinet 10, so that the indoor air is heat exchanged with the heat exchanger 40 to become a heat exchange air flow, and then the heat exchange air flow is promoted to flow to the first air outlet 11 and the second air outlet 12 through the air duct 20, and finally blown to the indoor environment from the first air outlet 11 and the second air outlet 12.

[0047] The flow divider 30 is arranged in front of the first air outlet 11 at the front side of the first air outlet 11, so that the air flow of the first air outlet 11 is blown to the flow divider 30, and then guided by the rear surface of the flow divider 30 to diverge towards the edge of the flow divider 30 and blow to the indoor environment.

[0048] The number of the air guide plates 61, 62 is multiple, for example, 2, 3 or more, which are arranged side by side in the front-rear direction at the second air outlet 12. The air guide plates 61, 62 are used to guide the direction of the air flow of the second air outlet 12, and to open and close the second air outlet 12.

[0049] In the embodiment of the present application, Figure 3 , the air flow is not directly blown to the indoor environment after flowing out of the first air outlet 11, but blown to the flow divider 30, and then guided by the rear surface of the flow divider 30 to diverge towards the edge of the flow divider 30 and blow to the indoor environment, which can make the air flow more dispersed and the diffusion range larger, so that the indoor refrigeration / heat speed is faster, the temperature change of each part of the indoor environment is more uniform, and the temperature difference is smaller. After the air flow is dispersed and blown out, it will not blow strongly to the human body, and it is also closer to natural wind, so that people feel more comfortable.

[0050] The existing wall-mounted air conditioner indoor unit more focuses on how to better increase the air supply distance or strengthen the direction guidance of the air flow to blow to the set area to achieve the goal of avoiding the human body. However, the embodiment creatively changes the idea to diffuse the air flow in multiple directions (at least two directions) as soon as it blows out of the first air outlet 11, so as to avoid the straight blowing of the strong air flow, thereby both avoiding the human body and making the cold / heat diffusion range larger to reduce the indoor temperature difference. Furthermore, the flow divider 30 is used to replace the conventional air guide plate, and the flow is divided to reduce the flow rate, so as to avoid that the flow rate is too fast to fully cool the surface of the air guide plate and the cabinet 10, resulting in uneven temperature distribution and condensation. In addition, the flow divider 30 can be surface treated to increase the hydrophobic function of the surface to further prevent condensation on the surface.

[0051] In addition, since multiple air deflectors 61, 62 are arranged, the air flow can be guided out of the air outlet direction by part of the air deflectors, and then the front air deflectors are turned to a suitable angle to guide the air flow to the flow dividing member 30, so that the air flow is better divided by the flow dividing member 30. Moreover, when more air deflectors are opened, the air outlet of the second air outlet 12 is relatively larger, and the air outlet of the first air outlet 11 is correspondingly smaller. When more air deflectors are closed, the air outlet of the second air outlet 12 is relatively smaller, and the air outlet of the first air outlet 11 is correspondingly larger. Therefore, the air outlet ratio of the two air outlets can be adjusted by adjusting the number of open and closed air deflectors.

[0052] In Figures 1 to 3 In the embodiment shown, the first air outlet 11 and the second air outlet 12 are both long strips with the length direction parallel to the length direction x of the cabinet 10, and the flow dividing member 30 is a rod parallel to the length direction of the cabinet 10. The rotation axis of each air deflector 61, 62 is parallel to the length direction of the cabinet 10. At this time, the air flow will be guided by the surface of the flow dividing member 30 to blow to both sides of the width direction (y direction) of the flow dividing member 30, i.e. the upper and lower sides, and the air flow blown from the upper side flows upward to a higher and farther space, and the air flow blown from the lower side flows downward to a lower and nearer space, so that the air supply range is expanded.

[0053] Of course, in some alternative embodiments, the first air outlet can also be circular, square, round rectangular or other shapes, and the flow dividing member can also be of a corresponding shape, so that the air flow flows outward along the radial direction of the flow dividing member. The cabinet can also be provided with multiple first air outlets and multiple second air outlets arranged along the length direction of the cabinet, and each first air outlet is independently provided with a flow dividing member, and each second air outlet is independently provided with an air deflector, which will not be described in detail.

[0054] In some embodiments, as Figure 2 and Figure 3 shown, the surface of the flow dividing member 30 facing the first air outlet 11 can be an outward convex curved surface 32, so as to guide the air flow to the edge of the flow dividing member 30. Specifically, if the surface of the flow dividing member 30 facing the first air outlet 11 is a plane, the air flow will be turned by 90° before diffusing along the surface to the edge after being vertically blown to the surface. In the embodiment, the surface is an outward convex curved surface, so that the air flow diffuses along the outward convex curved surface 32 to the edge after being impacted on the outward convex curved surface 32, and the air flow is turned by less than 90°. During the turning process, the outward convex shape of the outward convex curved surface 32 makes the direction change relatively more gentle, and the air flow loss and noise are smaller.

[0055] As Figure 2 and Figure 3As shown, the two side surfaces (i.e. the back surface and the front surface) of the flow splitter 30 facing away from the first air outlet 11 can be both convex curved surfaces, namely the convex curved surface 31 and the convex curved surface 32, and the two convex curved surfaces meet at two top ends A1 and A2, and the two top ends A1 and A2 can be provided with rounded corners, so that the cross section (the section perpendicular to the x axis) of the flow splitter 30 has an "olive shape". This structure of the flow splitter 30 is simple and easy to manufacture, and also makes the appearance more beautiful.

[0056] As shown in Figure 2 and Figure 3 more specifically, the convex curved surface 32 of the flow splitter 30 facing the first air outlet 11 can be formed by two circular arc surfaces CA1 and CA2, so that the convex curved surface 32, especially the middle point C, is more convex outward, so that the airflow blown thereon can be more evenly divided to the two sides of the point C. The convex curved surface 31 of the flow splitter 30 facing away from the first air outlet 11 can be a circular arc surface, which can satisfy the appearance and ease of manufacture. The radii R1 and R2 and the lengths of the two end circular arc surfaces CA1 and CA2 of the convex curved surface 32 can be equal, so that the airflow flowing to the two ends tends to be equal. Of course, the cross section of the flow splitter 30 can also be elliptical or other irregular shapes, which will not be described here.

[0057] In some alternative embodiments, if the first air outlet and the flow splitter are both circular, the convex curved surface can be spherical, which will not be described here.

[0058] In some embodiments, as shown in Figure 2 and Figure 3 , the cabinet 10 includes a partition 23, front and rear arranged volute tongues 21, and a volute 22. The partition 23 is located below the front end of the volute tongue 21 and in front of the lower end of the volute 22. The partition 23, the volute tongue 21 and the volute 22 together define an air duct 20. The partition 23 and the front end of the volute tongue 21 define the first air outlet 11, and the partition 23 and the lower end of the volute 22 define the second air outlet 12. It can be understood that the volute tongue 21, the volute 22 and the partition 23 are all long strips extending along the length direction of the cabinet. The inlet of the air duct 20 is provided with a cross flow fan 50 whose length direction is parallel to the length direction of the cabinet 10. The partition 23 is a part of the cabinet 10, which can be integrally formed with the adjacent cabinet part.

[0059] The air duct 20 can have a gradually expanding outlet connected with the first air outlet 11 and having a gradually increasing flow cross section along the airflow direction. That is, the air duct 20 is gradually expanding near the first air outlet 11, and this shape makes the airflow begin to spread to the edge before flowing out of the first air outlet 11, which is more conducive to the diffusion of the airflow out of the outlet.

[0060] Specifically, the volute tongue 21 comprises, in sequence from its inlet end to outlet end, an air inlet section (kc), an intermediate section (cs), and an air outlet section (sa). The air inlet section (kc) extends rearward and downward from the inlet end (k). The intermediate section (cs) extends forward and downward from the end (c) of the air inlet section (kc). The air outlet section (sa) extends forward and upward from the end (s) of the intermediate section (cs). The volute 22 is located rearward of the volute tongue 21 and has a curved structure with a concave side facing forward. The upper surface (ed section) of the partition strip 23 extends rearward and downward to jointly form a gradually expanding outlet of the air duct 20 with the air outlet section (sa). The air outlet section (sa) and the upper surface (ed section) of the partition strip 23 can be further formed as concave arcs, and each section is connected by a rounded corner, so that the direction of the air flow changes more gently and the flow loss is reduced.

[0061] In some embodiments, as shown in Figure 2 and Figure 3 , the frontmost deflector 62 can be formed as a concave curve when in the closed state, so that when the deflector 62 is in the open state, the air flow is guided towards the lower surface of the partition strip 23. The other deflectors 61 can be flat plates. In this way, the lower surface of the partition strip 23, which was originally difficult for air flow to pass through, also has air flow passing through, thereby avoiding condensation in the cooling mode.

[0062] Figure 4 is Figure 2 a schematic view of the wall-mounted air conditioner indoor unit in the lower blowing mode.

[0063] In some embodiments, the flow splitter 30 can be movably mounted on the casing 10 to adjust the relative position of the flow splitter 30 and the first air outlet 11, so as to adjust the air flow volume, air flow direction, and other parameters of the air flow. Here, "movably" includes various movements such as translation, rotation, and a combination thereof. The closer the flow splitter 30 is to the first air outlet 11, the more the air flow of the first air outlet 11 is blocked, and the smaller the air flow volume is, but the stronger the turning effect of the flow splitter 30 on the air flow (promoting the air flow to turn towards the edge of the flow splitter 30) is. The farther the flow splitter 30 is from the first air outlet 11, the smoother the air flow of the first air outlet 11 is, and the larger the air flow volume is, but the turning effect on the air flow is weaker.

[0064] Further, the flow splitter 30 is configured to be translatable in the front-rear direction and swingable about the upper end or the lower end in the front-rear direction, and the rotation axis is parallel to the length direction of the flow splitter 30. For example, Figure 3 and Figure 4 , the flow splitter 30 is translatable in the front-rear direction and swingable about the top end in the front-rear direction. When in the state shown in Figure 3 , the air flow is divided by the flow splitter 30 into two paths blowing upward and downward. On this basis, the flow splitter 30 is moved rearward to a state of closing the first air outlet 11, and then swings forward by a certain angle about the upper end (A1 end) to reach a state shown inFigure 4 The air flow is only out of the surface of the flow divider 30. It can be understood that the greater the swing angle of the flow divider 30, the farther the lower end (A2 end) of the flow divider 30 is from the partition strip 23, and the greater the air volume. Thus, the first air outlet 11 can be used to blow air downward, upward and the air volume can be adjusted by the translation and swing of the flow divider 30.

[0065] The flow divider 30 is configured to move to a position closing the first air outlet 11, as shown in Figure 3 The surface profile of the gradually expanding outlet of the air duct 20 can be matched with the surface profile of the corresponding section of the flow divider 30, so that the flow divider 30 can be attached to the surface of the gradually expanding outlet of the air duct 20 in the closed state, which can better close the first air outlet 11 and prevent dust and other foreign matters from entering the casing 10 through the first air outlet 11. When the wall-mounted air conditioner indoor unit is in a non-running state such as power-off or standby, moving the flow divider 30 to the closed state can also make the flow divider 30 "embedded" in the first air outlet 11, avoiding the flow divider 30 being completely outside the first air outlet 11 and affecting the appearance. For example, when the flow divider 30 is olive-shaped and the surface thereof facing the first air outlet 11 is an outward convex curved surface 32, the air outlet section sa is an inward concave curved surface to match the curved surface 32.

[0066] Figure 5 is Figure 2 The wall-mounted air conditioner indoor unit shown in

[0067] Forward air supply mode: as shown in Figure 3 The flow divider 30 is moved forward to open the first air outlet 11, the air guide plates 61 and 62 are closed or opened at a small angle to avoid condensation, and air is supplied forwardly from the first air outlet 11. When the air conditioner is running in a cooling mode, air can be supplied according to the air supply mode.

[0068] Downward air supply mode: as shown in Figure 4 The flow divider 30 is controlled to close or open the first air outlet 11 at a small angle to supply air downwardly, and the air guide plates 61 and 62 are opened to supply air downwardly from the second air outlet 12 under the guidance of the air guide plates 61 and 62. When the air conditioner is running in a heating mode, air can be supplied according to the downward air supply mode to accelerate the heating speed.

[0069] Maximum air supply mode: as shown in Figure 5 The first air outlet 11 and the second air outlet 12 are both opened to supply air at the maximum air volume.

[0070] Figure 6is a schematic view of a driving mechanism of the flow splitter. Figures 2-5 For better illustrating the air flow path, the driving mechanism is omitted, Figure 6 For better illustrating the driving mechanism, the air deflectors 61, 62 are omitted.

[0071] In some embodiments, as Figure 6 shown, the driving mechanism for driving the flow splitter 30 to translate forward and backward is a rack and pinion mechanism, which is installed on the lateral side of the housing 10 so as not to affect the air flow. The driving mechanism includes a rack 71 extending in the forward and backward direction and fixed to the flow splitter 30, a pinion 72 engaged with the rack 71, and a motor 73 for driving the pinion 72 to rotate to drive the rack 71 to translate forward and backward. The motor 73 can be fixed to the housing 10, and the rack 71 can be slidingly installed on the housing 10 in the forward and backward direction. The motor 73 can be controlled to rotate forward and backward so that the flow splitter 30 can reciprocate in the forward and backward direction. The motor 73 can be a step motor. In addition, another motor can be provided to drive the flow splitter 30 to rotate.

[0072] Thus, those skilled in the art will recognize that the present application has been well set forth, and that various changes, both as to the details and the arrangement of parts and the specific examples thereof which have been described and shown herein can be made without departing from the scope of the application and the application is therefore intended to cover all such changes and modifications that are within the scope of the application.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that... Comprise: a casing having a first air outlet facing forward and a second air outlet facing downward; a flow splitter disposed in front of the first air outlet and spaced apart from the first air outlet to direct the air flow from the first air outlet to the flow splitter and then to the edge of the flow splitter under the guidance of the rear surface of the flow splitter; and a plurality of air deflectors arranged side by side in the front-rear direction at the second air outlet; the casing comprises a partition strip, a volute tongue and a volute housing 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 housing to jointly define an air duct with the volute tongue and the volute housing; and the partition strip and the front end of the volute tongue define the first air outlet, and the partition strip and the lower end of the volute housing define the second air outlet; the upper surface of the frontmost air deflector is concave when in the closed state, so that when the air deflector is in the open state, the air flow is directed to the lower surface of the partition strip; the volute tongue comprises, in order from the inlet end to the outlet end: an air inlet section extending rearward and downward from the inlet end; an intermediate section extending forward and downward from the end of the air inlet section; and an air outlet section extending forward and upward from the end of the intermediate section; and the upper surface of the partition strip gradually slopes downward from rear to front to jointly form a gradually expanding outlet of the air duct with the air outlet section; the flow splitter is movably mounted on the casing to adjust its relative position with the first air outlet; the flow splitter is configured to translate in the front-rear direction and to swing forward and backward around its upper end or lower end, with the rotation axis parallel to the length direction of the flow splitter; both the front and rear surfaces of the flow splitter are convex curved surfaces.

2. The wall-mounted air conditioner indoor unit according to claim 1, wherein the first air outlet and the second air outlet are long strips with the length direction parallel to the length direction of the casing, and the flow splitter is a rod parallel to the length direction of the casing, and the rotation axis of each air deflector is parallel to the length direction of the casing.

3. The wall-mounted air conditioner indoor unit according to claim 1, wherein the air duct has a gradually expanding outlet connected to the first air outlet and gradually increasing in flow cross section along the air flow direction.

4. The wall-mounted air conditioner indoor unit according to claim 2, wherein the surface of the flow splitter facing at least the first air outlet is a convex curved surface to facilitate guiding the air flow to the edge thereof.

5. The wall-mounted air conditioner indoor unit according to claim 4, wherein the two interfaces form two top ends, and the cross-sectional profile of the flow splitter forms an "olive shape"; and the convex curved surface of the flow splitter facing the first air outlet is formed by two arc surfaces, and the convex curved surface of the flow splitter facing away from the first air outlet is an arc surface. ​

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