CN216307996U - Wall-mounted air conditioner indoor unit - Google Patents

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a casing, a first air guide plate and a second air guide plate. The housing defines an air outlet that opens forward and downward. The first air deflector and the second air deflector are used to cooperate to open or close the air outlet; the rotation axis of the first air deflector is located at the lower end of the first air deflector, and is located behind and below the front end of the air outlet; The rotating shaft of the second wind deflector is located at the front end of the second wind deflector, and is immediately adjacent to the rear side of the rotating shaft of the first wind deflector. The utility model solves the problem that the existing wall-mounted air conditioner indoor unit is inconvenient for the upward blowing of cold air and the downward blowing of hot air.

Description

Wall-mounted air conditioner indoor unit

technical field

The utility model relates to the technical field of air conditioning, in particular to a wall-mounted air conditioner indoor unit.

Background technique

With the development of the times and the advancement of technology, users not only expect air conditioners to have faster cooling and heating speeds, but also pay more and more attention to the comfort performance of air conditioners.

However, in order to achieve faster cooling and heating, it is unavoidable to supply air with a large air volume. However, when the cold air or hot air with excessive wind speed blows directly on the human body, it will inevitably cause discomfort to the human body. The long-term exposure of the human body to the cold wind can also cause air-conditioning disease.

Therefore, how to realize the comfortable air supply of the air conditioner has become a technical problem to be solved urgently in the air conditioner industry.

Utility model content

The purpose of the present invention is to provide a wall-mounted air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems.

The purpose of the utility model is to solve the problem that the existing wall-mounted air conditioner indoor unit is inconvenient for the upward blowing of cold air and the downward blowing of hot air.

A further object of the present invention is to enrich the adjustment modes of the air volume and the air direction.

In particular, the utility model provides a wall-mounted air conditioner indoor unit, which includes:

a casing, which defines an air outlet that opens forward and downward;

The first air deflector and the second air deflector are used for opening or closing the air outlet; the rotating shaft of the first air deflector is located at the lower end of the first air deflector, and is located behind and below the front end of the air outlet ; The rotating shaft of the second wind deflector is located at its front end, and is immediately adjacent to the rear side of the rotating shaft of the first wind deflector.

Optionally, the first air deflector is an arc-shaped plate with a center line parallel to its own axis of rotation;

When the first air deflector is in the state of closing the air outlet, its arc-shaped convex side faces forward and downward.

Optionally, the first air deflector is a flat plate;

When the first air deflector is in the state of closing the air outlet, it is gradually inclined forward from the lower end to the upper end.

Optionally, the rotation axis of the second air deflector is located directly in front of the lower end of the air outlet.

Optionally, the first air guide plate is provided with a plurality of first air diffuser holes.

Optionally, a plurality of second air dispersion holes are opened on the second air guide plate.

Optionally, the housing has an air duct, which is defined by a front air duct wall and a rear air duct wall spaced at the front and rear, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected to the The upper end and the lower end of the air outlet are connected to guide the air flow in the casing to the air outlet;

The area of the front wall of the housing adjacent to the air outlet is provided with a plurality of third air-scattering holes, and the front air duct wall is provided with ventilation openings, so that part of the air flow in the air duct flows through the ventilation openings and the air ducts in turn. The third air diffuser is then discharged to the indoor environment.

Optionally, the housing has an air duct, which is defined by a front air duct wall and a rear air duct wall spaced at the front and rear, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected to the The upper end and the lower end of the air outlet are connected to guide the air flow in the casing to the air outlet;

The section of the front air duct wall adjacent to its outlet end is in a downwardly protruding curved shape, and the outlet end tangent extends forward and upward; and

The section of the rear air duct wall adjacent to the outlet end is in a curved shape protruding forward, and the tangent line of the outlet end extends forward and downward or directly downward.

Optionally, the front air duct wall includes:

a volute tongue segment, the front end of which constitutes the inlet end of the front air duct wall, and extends from the upper front to the lower rear;

a connecting segment extending forward and downward from the rear end of the volute-lingual segment; and

The lower convex arc line segment extends forward from the rear end of the connecting segment and is in the shape of an arc protruding downward, the front end of which constitutes the outlet end of the front air duct wall and the tangent line extends forward and upward.

Optionally, the rear air duct wall includes:

The main body section is in the shape of an arc protruding backwards, the upper end of which constitutes the inlet end of the rear air duct wall; and

The forward convex arc line segment extends forward and downward obliquely from the lower end of the main body segment, and is in the shape of a forward convex arc, the lower end of which constitutes the outlet end of the rear air duct wall and the tangent extends forward and downward.

In the wall-mounted air conditioner indoor unit of the utility model, the air outlet is provided with a first air guide plate and a second air guide plate, so that the air outlet can be designed to be larger and the air supply angle can be enlarged. Since the rotating shaft of the first air deflector is located at its lower end and behind the front end of the air outlet, after it is rotated forward and downward to open the air outlet, the air outlet area of the air outlet will be very large. The wind board is raised to supply air, and the airflow will be raised at a large angle and with a large amount of air, so that the cold wind does not blow and the air supply distance is longer. Since the rotating shaft of the second wind deflector is located at its front end and is adjacent to the rear side of the rotating shaft of the first wind deflector, when the first wind deflector is closed, the second wind deflector is opened to a vertical state, which can guide the The airflow flows directly downward to realize the sinking and blowing of hot air.

Further, in the wall-mounted air conditioner indoor unit of the present invention, the front wall of the casing is provided with a plurality of third air diffuser holes in the area adjacent to the air outlet, and the front air duct wall is provided with air vents, and part of the air flow in the air duct flows through in turn. The air vents and the third air diffuser are then exhausted to the indoor environment to achieve the effect of breeze air supply and make the air supply air flow more comfortable. In addition, due to the shunt of the air vent, the air flow from the air outlet is reduced, so that the wind force is relatively weakened, the wind feeling of the human body is reduced, and the human body is more comfortable.

Further, in the wall-mounted air conditioner indoor unit of the present invention, a first air-scattering hole may be formed on the first air guide plate, and a second air-scattering hole may be formed on the second air guide plate. In this way, when the first air deflector or the second air deflector is in a closed state, the wind is blown out through the first air diffusing hole or the second air diffusing hole to achieve a breeze effect. When the first air deflector or the second air deflector is in the air deflecting state, part of the air flow passes through the first air diffusing hole or the second air diffusing hole, and can also impact the leeward wind of the first air deflector or the second air deflector side airflow to avoid condensation on the leeward side.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic diagram of the wall-mounted air conditioner indoor unit according to the first embodiment of the present invention when the air outlet is closed;

Fig. 2 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 1 operating in an upward air supply mode;

3 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in FIG. 1 when operating in a sinking air supply mode;

Fig. 4 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 1 operating in a maximum air supply mode;

5 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a second embodiment of the present invention;

6 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a third embodiment of the present invention;

7 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a fourth embodiment of the present invention;

8 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a fifth embodiment of the present invention;

9 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a sixth embodiment of the present invention;

FIG. 10 is a schematic diagram of an air duct structure in an embodiment of the present invention.

Detailed ways

The wall-mounted air conditioner indoor unit according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 10 . Wherein, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inside", "outside", "horizontal", etc. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present utility model. limits. The flow direction of the air flow is indicated by arrows in the figure.

The terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" etc. may expressly or implicitly include at least one of such features, ie including one or more of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. When a feature "comprises or includes" one or some of the features it covers, unless specifically described otherwise, this indicates that other features are not excluded and that other features may be further included.

Unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and other terms should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction between the two elements, unless otherwise clearly defined . Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific situations.

The embodiment of the present utility model provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is the indoor part of the split wall-mounted room air conditioner, which is used to regulate indoor air, such as cooling/heating, dehumidification, introducing fresh air, and so on.

1 is a schematic diagram of the wall-mounted air conditioner indoor unit according to the first embodiment of the present invention when the air outlet is closed; FIG. 2 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in FIG. 1 when operating in the upward air supply mode; FIG. 3 is a diagram of FIG. 1 is a schematic diagram of the wall-mounted air conditioner indoor unit operating in the sinking air supply mode; FIG. 4 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in FIG. 1 operating in the maximum air supply mode.

As shown in FIGS. 1 to 4 , the wall-mounted air conditioner indoor unit according to the embodiment of the present invention may generally include a casing 10 , a first air guide plate 50 and a second air guide plate 60 .

The housing 10 is provided with an air outlet 12 which is opened forward and downward. The casing 10 defines a accommodating space for accommodating components of the wall-mounted air conditioner indoor unit. The air outlet 12 may be opened at the lower part of the front side of the housing 10 so as to be opened forward and downward. The air outlet 12 is used to discharge the airflow in the housing 10 to the indoor environment, so as to adjust the indoor air. The exhausted airflow refers to the airflow that is acted by the fan in the housing 10 to accelerate the airflow that flows through the air outlet 12 and is used to adjust the indoor environment, such as cold air in the cooling mode, hot air in the heating mode, and fresh air in the mode. of fresh air, etc. The housing 10 may be a long strip with a lengthwise direction (perpendicular to the paper direction of FIG. 1 ) horizontally arranged, and the air outlet 12 may be a long strip whose lengthwise direction is parallel to the lengthwise direction of the housing 10 , and its lengthwise direction is perpendicular to that shown in FIG. 1 on paper.

The wall-mounted air conditioner indoor unit may be an indoor part of a split wall-mounted room air conditioner that utilizes a vapor compression refrigeration cycle system for cooling/heating. As shown in FIG. 1 , a heat exchanger 30 and a fan 40 are provided inside the casing 10 . The heat exchanger 30 and the throttling device are connected with the compressor, the condenser and other refrigeration elements arranged in the outdoor casing of the air conditioner through pipelines to form a vapor compression refrigeration cycle system. Under the action of the fan 40 , the indoor air enters the interior of the casing 10 through the air inlet 11 at the top of the casing 10 , and after the forced convection heat exchange with the heat exchanger 30 is completed, heat exchange air is formed, and then guided by the air duct 20 Blow down to the air outlet 12 . The fan 40 is preferably a cross-flow fan whose axis is parallel to the longitudinal direction of the casing 10 , and is disposed at the inlet of the air duct 20 . Heat exchanger 30 may be a three-stage heat exchanger.

As shown in FIG. 1 , the first air deflector 50 and the second air deflector 60 are used to cooperate to open or close the air outlet 12 . The rotation axis x of the first air guide plate 50 is located at the lower end thereof, and is located behind and below the front end point (point J) of the air outlet 12 . The rotation axis y of the second wind deflector 60 is located at the front end thereof, and is immediately adjacent to the rear side of the rotation axis x of the first wind deflector 50 . Preferably, the rotation axis y of the second air deflector 60 can be located directly in front of the lower end (point C) of the air outlet 12, so that when the second air deflector 60 is in a closed state, the lower surface of the second air deflector 60 is in contact with the housing 10. The lower surface of the bottom wall is flush, which makes the appearance of the wall-mounted air conditioner indoor unit more beautiful.

In the embodiment of the present invention, the air outlet 12 is provided with the first air guide plate 50 and the second air guide plate 60. Through the cooperation of the two, the air outlet 12 can realize the upward blowing of cold air and the downward blowing of hot air, and the outlet The adjustment modes of air volume and air outlet direction are very diverse, please refer to the following introduction for details.

The indoor unit of the wall-mounted air conditioner can operate in the upward air supply mode, as shown in Figure 2. Keep the second wind deflector 60 in a closed state; turn the first wind deflector 50 downward to avoid the front side of the air outlet 12, and at the same time guide the wind forward and upward, so that the wind reaches the highest point and then downward Scattered, forming a bath-style cooling effect, to avoid cold air blowing directly on the human body and causing discomfort to the human body.

The wall-mounted air conditioner can also operate the sinking air supply mode, as shown in Figure 3. The first air deflector 50 is in a closed state to prevent the supply air from blowing forward, and the unshielded part of the air outlet 12 is opened downward. At the same time, the second wind deflector 60 can be rotated to a vertically extending state, so as to better guide the wind downward. When the air conditioner is in heating operation, it can supply air downwards, so that the hot air sinks to the ground and then flows upwards, forming a carpet heating effect and avoiding poor heating effect at the bottom of the indoor space.

The wall-mounted air conditioner can also run the maximum air supply mode, as shown in Figure 4. The first air deflector 50 opens the front side space of the air outlet 12, and the second air deflector 60 is rotated to a vertical state, so as to discharge the air forward and downward at the same time, so that the air outlet is the smoothest and the air volume is the largest.

The air supply modes of the embodiment of the present invention are very diverse, and the effect of rising and sinking is better. Since two air guide plates are provided, the upper end of the air outlet 12 can be designed to be higher up and the lower end of the air outlet 12 can be designed to be further back, so that the air outlet 12 is larger, which is beneficial to enlarge the air supply angle. Since the rotation axis x of the first air deflector 50 is located at its lower end and behind the front end point J of the air outlet 12, after it is rotated forward and downward to open the air outlet 12, the air outlet area of the air outlet 12 will be very large. , at this time, the first air deflector 50 is used to raise the air, and the air flow will raise a large angle and a large air volume, so that the cold wind does not blow people and the air supply distance is longer.

In some embodiments, as shown in FIGS. 1 to 4 , the first air deflector 50 can be an arc-shaped plate with a center line parallel to its own rotation axis, and the first air deflector 50 is in a state of closing the air outlet 12 , the convex side of its arc is facing forward and downward, as shown in Figure 1. The first air deflector 50 is arranged in an arc-shaped plate shape, so that after the first air deflector 50 opens the air outlet 12 at a larger angle (as shown in FIG. 2 ), it can still use its own arc shape to guide the airflow upward. blow. In this way, the air outlet area is not affected, and the wind can be blown upward to achieve the optimal upward effect. Preferably, the radius of the inner arc surface of the first wind deflector 50 is between 30mm and 60mm, and the central angle thereof is between 60° and 90°.

9 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a sixth embodiment of the present invention. In some alternative embodiments, as shown in FIG. 9 , the first air deflector 50 can also be a flat plate, and the first air deflector 50 is gradually inclined forward from the lower end to the upper end when the air outlet 12 is closed. In order to achieve the effect of upward air supply.

5 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a second embodiment of the present invention.

In some embodiments, as shown in FIG. 1 and FIG. 5 , the housing 10 is provided with an air duct 20 . The air duct 20 is defined by a front air duct wall 200 and a rear air duct wall 100 which are spaced back and forth. The outlet ends of the front air duct wall 200 and the rear air duct wall 100 are respectively connected with the upper end and the lower end of the air outlet 12, so as to guide the air flow in the casing 10 to the air outlet 12, and blow to the indoor environment through the air outlet 12, Complete the air conditioning of the indoor environment, such as cooling and heating. In addition, the front wall of the housing 10 is provided with a plurality of third air diffuser holes 13 in the area adjacent to the air outlet 12 , and the front air duct wall 200 is provided with air vents 220 so that part of the air flow in the air duct 20 flows through the air vents 220 in sequence. and the third air diffuser hole 13, and then discharge to the indoor environment. That is, the airflow enters the space between the front air duct wall 200 and the front wall of the housing 10 through the ventilation openings 220 , and then is discharged to the indoor environment through the plurality of third air diffusing holes 13 . In this way, the effect of breeze air supply is realized, and the air supply air flow is more comfortable. The first air deflector 50 and the second air deflector 60 can close the air outlet 12, and the air is completely discharged from the plurality of third air diffusing holes 13, so as to achieve a complete breeze blowing effect. When the air outlet 12 is in the open state, the air outlet 12 and the third air diffuser hole 13 jointly emit air, and due to the shunt of the air outlet 220, the air flow from the air outlet 12 is reduced, so that the wind force is relatively weakened and the human body is reduced. The wind feeling makes the human body more comfortable.

6 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a third embodiment of the present invention.

As shown in FIG. 6 , in some embodiments, the first air deflector 50 is provided with a plurality of first air diffusion holes 51 . In this way, when the first air deflector 50 is in the closed state, the wind is blown out through the first air diffusing hole 51 to achieve a breeze effect. In addition, part of the airflow passing through the first air diffusing holes 51 can also impact the airflow on the leeward side of the first air deflector 50 to make it turbulent and prevent condensation on the leeward surface of the first air deflector 50 .

7 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a fourth embodiment of the present invention;

As shown in FIG. 7 , in some embodiments, the second air guide plate 60 is provided with a plurality of second air diffusion holes 61 . In this way, when the second wind deflector 60 is in the closed state, the wind is blown out through the second air diffusing holes 61 to achieve a breeze effect. Moreover, part of the airflow passing through the second air diffusing holes 61 can also impact the airflow on the leeward side of the second air deflector 60 to make it turbulent and avoid condensation on the leeward surface of the second air deflector 60 .

8 is a schematic diagram of a wall-mounted air conditioner indoor unit according to a fifth embodiment of the present invention;

As shown in FIG. 8 , the first air guide plate 50 can also be provided with a plurality of first air diffuser holes 51 as described above, and at the same time, the second air guide plate 60 can be provided with a plurality of second air diffuser holes. 61.

FIG. 10 is a schematic diagram of an air duct structure in an embodiment of the present invention. The first wind deflector 50 and the second wind deflector 60 are omitted in FIG. 10 .

In some embodiments, as shown in FIG. 1 and FIG. 10 , the housing 10 is provided with an air duct 20 . The air duct 20 is defined by a front air duct wall 200 and a rear air duct wall 100 which are spaced back and forth. The outlet ends of the front air duct wall 200 and the rear air duct wall 100 are respectively connected to the upper end and the lower end of the air outlet 12 for guiding the air flow in the housing 10 to the air outlet 12 .

As shown in FIG. 10 , the section of the front air duct wall 200 adjacent to its outlet end is in a downwardly protruding curved shape, and the outlet end tangent C1 extends forward and upward. In addition, the section of the rear air duct wall 100 adjacent to the outlet end is in a curved shape protruding forward, and the outlet end tangent C2 extends forward and downward or directly downward.

According to the Coanda effect, when there is surface friction between the fluid and the surface of the object it flows through (also known as fluid viscosity), as long as the curvature is not large, the fluid will flow along the surface of the object. Since the outlet section of the front air duct wall 200 adopts the above-mentioned shape, when the air outlet 12 discharges air forward and upward (for example, in the cooling mode), the airflow will flow forward along the surface of the front air duct wall 200 under the action of the Coanda effect. When the air conditioner is refrigerating and blowing up, it is beneficial to increase the upward angle of the air flow, so that the cold air is blown out at a larger upward angle (the angle between the air blowing angle and the horizontal plane) to avoid the human body and the cold air. After reaching the highest point, it scatters downward for a "shower-style" cooling experience.

In the same way, since the section of the rear air duct wall 100 of the air duct 20 near the outlet end is in a curved shape that protrudes forward, and the tangent of the outlet end extends forward and downward or directly downward, when the air outlet 12 sends air downward ( For example, heating mode), the air flow gradually slopes downward along the surface of the rear air duct wall 100, so that the air outlet direction is closer to or reaches the vertical downward direction, so as to reach the ground more, realizing a "carpet type" "Air supply effect.

Specifically, as shown in FIG. 10 , the front air duct wall 200 includes a volute tongue segment EF, a connecting segment FG and a downward convex arc line segment GJ. The front end of the volute tongue segment EF constitutes the inlet end of the front air duct wall 200, and extends from the upper front to the lower rear. The volute section EF is opposite to the fan 40 . The connecting segment FG extends forward and downward from the rear end of the volute segment EF. The lower convex arc line segment GJ extends forward from the rear end of the connecting segment FG, and is an arc that protrudes downward (ie, the axis of the arc is located above it), and the axis of the arc is parallel to the transverse direction of the air outlet 12 direction. The lateral direction of the air outlet 12 refers to the lateral direction of the housing 10 , that is, in FIG. 10 , the direction perpendicular to the paper surface. The front end of the lower convex arc line segment GJ constitutes the outlet end of the front air duct wall 200 and the tangent line C1 extends forward and upward. Rounded transitions can be used between adjacent sections to reduce the resistance loss of the airflow, and also make the airflow turn more smoothly, which is beneficial to enhance the Coanda effect of the airflow. The connecting segment FG can be a straight line segment, and the value range of the included angle θ between it and the horizontal direction is 20°≤θ≤30°, so that the turning angle between it and the downward convex arc line segment GJ is the most reasonable, and the turning angle is avoided due to the turning angle. Too large causes the airflow to move away from the surface of the downwardly convex arc segment GJ. The radius of the downward convex arc line segment GJ is preferably in the range of 100mm≤R≤300mm, to enhance the airflow attachment effect and avoid the airflow far from the surface of the downward convex arc line segment GJ due to an excessively large turning angle.

As shown in FIG. 10 , the rear air duct wall 100 includes a main body section AB and a forward convex arc line section BC. Wherein, the main body section AB is an arc that protrudes backward, and the upper end thereof constitutes the inlet end of the rear air duct wall 100 . The main body section AB half surrounds the fan 40 on its rear side. The front convex arc line segment BC extends obliquely forward and downward from the lower end of the main body segment AB, and is a forward convex arc shape. The axes of the arcs of the main body segment AB and the forward convex arc segment BC are both parallel to the transverse direction of the air outlet 12 .

By now, those skilled in the art will recognize that although various exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, Numerous other variations or modifications consistent with the principles of the present invention are directly identified or derived from the disclosure of the present invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A wall-mounted air conditioner indoor unit is characterized in that comprising: a casing, which defines an air outlet that opens forward and downward; The first air deflector and the second air deflector are used for opening or closing the air outlet; the rotating shaft of the first air deflector is located at the lower end of the first air deflector, and is located behind and below the front end of the air outlet ; The rotating shaft of the second wind deflector is located at its front end, and is immediately adjacent to the rear side of the rotating shaft of the first wind deflector. 2. The wall-mounted air conditioner indoor unit according to claim 1, wherein The first air deflector is an arc-shaped plate whose center line is parallel to its own rotation axis; When the first air deflector is in the state of closing the air outlet, its arc-shaped convex side faces forward and downward. 3. The wall-mounted air conditioner indoor unit according to claim 1, wherein The first air deflector is a flat plate; When the first air deflector is in the state of closing the air outlet, it is gradually inclined forward from the lower end to the upper end. 4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The rotating shaft of the second wind deflector is located directly in front of the lower end of the air outlet. 5. The wall-mounted air conditioner indoor unit according to claim 1, wherein The first air guide plate is provided with a plurality of first air dispersion holes. 6. The wall-mounted air conditioner indoor unit according to claim 1, wherein, The second air guide plate is provided with a plurality of second air dispersion holes. 7. The wall-mounted air conditioner indoor unit according to claim 1, wherein, There is an air duct in the casing, which is defined by the front air duct wall and the rear air duct wall spaced at the front and rear, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the upper end of the air outlet. is connected with the lower end, so as to guide the air flow in the casing to the air outlet; The front wall of the housing is provided with a plurality of third air-scattering holes in the area adjacent to the air outlet, and the front air duct wall is provided with ventilation openings, so that part of the air flow in the air duct flows through the ventilation openings in sequence and the third air diffuser, and then discharge to the indoor environment. 8. The wall-mounted air conditioner indoor unit according to claim 1, wherein There is an air duct in the casing, which is defined by the front air duct wall and the rear air duct wall spaced at the front and rear, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the upper end of the air outlet. is connected with the lower end, so as to guide the air flow in the casing to the air outlet; The section of the front air duct wall adjacent to its outlet end is in a downwardly protruding curved shape, and the outlet end tangent extends forward and upward; and The section of the rear air duct wall adjacent to the outlet end is in a curved shape protruding forward, and the tangent line of the outlet end extends forward and downward or just below. 9. The wall-mounted air conditioner indoor unit according to claim 8, wherein the front air duct wall comprises: The volute tongue segment, the front end of which constitutes the inlet end of the front air duct wall, and extends from the upper front to the lower rear; a connecting segment extending forward and downward from the rear end of the volute-lingual segment; and The lower convex arc line segment extends forward from the rear end of the connecting segment and is in the shape of an arc protruding downward, the front end of which constitutes the outlet end of the front air duct wall and the tangent line extends forward and upward. 10. The wall-mounted air conditioner indoor unit according to claim 8, wherein the rear air duct wall comprises: The main body section is in the shape of an arc protruding rearward, the upper end of which constitutes the inlet end of the rear air duct wall; and The front convex arc line segment extends forward and downward obliquely from the lower end of the main body segment, and is in a forward convex arc shape, the lower end of which constitutes the outlet end of the rear air duct wall and the tangent line extends forward and downward.

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