WO2023082631A1

WO2023082631A1 - Wall-mounted air conditioner indoor unit

Info

Publication number: WO2023082631A1
Application number: PCT/CN2022/098932
Authority: WO
Inventors: 李英舒; 张丽; 殷乐; 王永涛
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-11-15
Filing date: 2022-06-15
Publication date: 2023-05-19
Also published as: CN116123611A

Abstract

A wall-mounted air conditioner indoor unit, comprising a housing (10) provided with a main air outlet (12) for supplying air indoors and an air duct (50) for supplying an air flow to the main air outlet (12); a first fan (41) arranged at an inlet end of the air duct (50); and a second fan (42) arranged inside the air duct (50) and located downstream of the first fan (41). The operation of the first fan (41) and the second fan (42) is independently controlled, so as to simultaneously or alternatively start the first fan and the second fan to drive the air flow in the air duct (50) to flow. The adjustability of the air volume of the wall-mounted air conditioner indoor unit is better.

Description

Wall-mounted air conditioner indoor unit

technical field

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

Background technique

The cold or hot air from the air conditioner blowing directly on the human body will make the user uncomfortable and experience a poor experience. The human body is often blown directly by the cold wind and can cause air-conditioning diseases.

Some existing wall-mounted air-conditioning indoor units are provided with more air outlets, so that the air outlet angle is larger, and the air can be supplied to a larger range, so that the controllability of the air supply angle is stronger. However, due to the arrangement of more air outlets, the air outlet structure is complicated, which often leads to the problems that some air outlets have insufficient air output and the air supply distance is not long enough.

Contents of the invention

The object 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, so that the air volume of the wall-mounted air conditioner indoor unit can be more adjustable.

A further object of the present invention is to ensure the air volume and air outlet distance of each air outlet.

A further object of the present invention is to expand the air supply angle of the wall-mounted air conditioner indoor unit.

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

The casing has a main air outlet for supplying air to the room, and has an air duct for supplying airflow to the main air outlet;

the first blower is arranged at the inlet end of the air duct; and

a second blower arranged inside the air duct and downstream of the first blower;

The operation of the first blower and the second blower is controlled independently, so as to be activated simultaneously or alternatively to promote the flow of air in the air duct.

Optionally, the casing also has a bypass air outlet, which passes through the air duct and the bottom wall of the casing, for downward air supply;

The first fan is located upstream of the bypass air outlet for supplying air to the bypass air outlet and the second fan;

The second blower is located downstream of the bypass air outlet for blowing air to the main air outlet.

Optionally, a bypass air deflector is provided at the bypass air outlet.

Optionally, the main air outlet is opened forward and downward for air outlet forward and downward.

Optionally, the downstream section of the air duct is a diverging section, and the second blower is located at an inlet of the diverging section.

Optionally, the air channel is defined by a front air channel wall, a rear air channel wall behind the front air channel wall, and a lower air channel wall below the front air channel wall;

The rear air channel wall and the front air channel wall jointly define an upstream section of the air channel;

The lower air channel wall and the front air channel wall jointly define a downstream section of the air channel;

The bypass air outlet is formed between the rear air duct wall and the lower air duct wall;

The outlet end of the front air channel wall and the outlet end of the lower air channel wall constitute the upper end and the lower end of the main air outlet respectively.

Optionally, the rear air duct wall is convex and curved as a whole;

The wall of the lower air passage gradually extends downward from the rear to the front as a whole;

The front air channel wall includes a volute tongue section, a connecting section and an upward section, the volute tongue section extends from the front to the rear and the bottom, the connection section extends from the rear end of the volute tongue section to the front and the bottom, and the upward section extending obliquely forward and upward from the front end of the connecting section; and

The second fan is located between the connecting section and the wall of the downflow channel.

Optionally, the rear end of the lower air passage wall is located higher than the front end of the rear air passage wall.

Optionally, the wall-mounted air conditioner indoor unit also includes:

the first wind deflector and the air outlet grille are arranged in the front side of the main air outlet along the vertical direction; and

The second air deflector is arranged on the lower side of the main air outlet.

Optionally, the grill holes of the outlet grill are arranged in the up and down direction, and each of the grill holes is in the shape of a strip whose length direction is parallel to the transverse direction, and the width of each of the grill holes is incomplete. same.

In the wall-mounted air conditioner indoor unit of the present invention, a first fan and a second fan are arranged in the air duct, and the two are connected in series in the air duct. The air conditioner can control the number of openings of the two fans, adjust the total air volume of the two fans, or adjust The proportion of the air volume of each fan, which makes the adjustable range of the air volume larger and more adjustable.

Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the casing is not only provided with a main air outlet, but also provided with a bypass air outlet, so that the air supply range of the wall-mounted air conditioner indoor unit is larger. The bypass air outlet is specially used to send air directly downward, which meets the requirement of direct air blowing downward in the heating mode. Moreover, the bypass air outlet is located between the first fan and the second fan, the first fan is used to supply air to the bypass outlet and the second fan, and the second fan is specially used to supply air to the main air outlet. The two air outlets can be supplied with sufficient air flow, the air volume can be guaranteed, and the air volume can be more adjustable.

Further, in the wall-mounted air-conditioning indoor unit of the present invention, the air duct is defined by the front air duct wall, the rear air duct wall and the lower air duct wall, and the air duct is divided into upstream for placing two fans in a simple form. The section and the downstream section also define a bypass air outlet. Moreover, it is also more convenient to set the downstream section of the air duct as a diverging section, so as to ensure the pressurization effect on the air flow downstream of the air duct.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of 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 illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 1 in the front blowing mode;

Fig. 3 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 1 in the down blowing mode;

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

Detailed ways

Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in this invention without departing from the scope or spirit of this invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still a further embodiment. Thus, it is intended that the present invention covers such modifications and changes as come within the scope of the appended claims and their equivalents.

The wall-mounted air conditioner indoor unit according to the embodiment of the present invention will be described below with reference to FIG. 1 to FIG. 4 . Among them, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "horizontal", etc. are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention . The flow direction of the air supply airflow is indicated by arrows in the figure.

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

An embodiment of the present invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is an indoor part of a split wall-mounted room air conditioner, and is used to adjust indoor air, such as cooling/heating, dehumidification, and/or introducing fresh air, etc.

Fig. 1 is a schematic structural view of the wall-mounted air conditioner indoor unit according to an embodiment of the present invention; Fig. 2 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 1 in the front blowing mode; Fig. 3 is a wall-mounted air conditioner indoor unit shown in Fig. Schematic diagram of the machine in blowdown mode.

As shown in FIGS. 1 to 3 , the wall-mounted air conditioner indoor unit according to the embodiment of the present invention may generally include a casing 10 , a first fan 41 and a second fan 42 .

The casing 10 has a main air outlet 12 for blowing air into the room. Moreover, the casing 10 has an air duct 50 for supplying airflow to the main air outlet 12 . That is, the outer panel for constituting the appearance of the wall-mounted air conditioner indoor unit, the framework constituting the main body of the wall-mounted air conditioner indoor unit, and the air duct wall for defining the air duct 50 all belong to the casing 10 described herein.

The cabinet 10 defines an accommodating space for accommodating various components of the wall-mounted air conditioner indoor unit. The main air outlet 12 is used to discharge the airflow in the cabinet 10 to the indoor environment, so as to adjust the indoor air. The exhausted airflow refers to the airflow that is acted on by the fan in the casing 10 to accelerate the flow through the air outlet and is used to adjust the indoor environment, such as cold air in cooling mode, hot air in heating mode and/or fresh air mode The fresh air flow and so on. The casing 10 may be in the shape of a strip extending transversely, and the main air outlet 12 may be in the shape of a strip whose length direction is parallel to the length direction of the casing 10 . The main air outlet 12 may be a single air outlet, or may include multiple independent sub-air outlets.

The first blower 41 is arranged at the inlet end of the air duct 50 , and is used for sucking the airflow in the casing 10 into the air duct 50 . The second blower 42 is arranged inside the air duct 50 and is located downstream of the first blower 41 . The operation of the first blower 41 and the second blower 42 is controlled independently, so as to be activated simultaneously or alternatively to promote the air flow in the air duct 50 . That is, one or two of the two fans (the first fan 41 and the second fan 42 ) can be turned on, and the wind speed of each fan can be adjusted independently.

In an optional embodiment, the wall-mounted air conditioner indoor unit is 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 60 is provided inside the casing 10 . The heat exchanger 60, the throttling device, and the compressor, condenser, and other refrigeration components installed in the outdoor unit of the air conditioner are connected through pipelines to form a vapor compression refrigeration cycle system. Under the action of the first fan 41 and/or the second fan 42, the indoor air enters the inside of the cabinet 10 through the air inlet 11 at the top of the cabinet 10, and after completing the forced convection heat exchange with the heat exchanger 60, heat exchange air is formed. , and then blow to the air outlet under the guidance of the air duct 50. The first fan 41 and the second fan 42 are preferably cross-flow fans whose axes are parallel to the length direction of the casing 10 .

In the wall-mounted air conditioner indoor unit of the embodiment of the present invention, the first fan 41 and the second fan 42 are arranged in series in the air duct 50 , and when both are turned on, the wind force is superimposed, so that the air volume is larger and the air supply distance is longer. In addition, the wall-mounted air conditioner indoor unit can control the number of two fans to be turned on, or adjust the total air volume of the two fans, or adjust the proportion of the two fans' air volume, which makes the adjustable range of the air volume larger and more adjustable.

In some embodiments, as shown in FIGS. 1 to 3 , the casing 10 also has a bypass air outlet 13 , and the bypass air outlet 13 runs through the air duct 50 and the bottom wall 101 of the casing 10 for sending air downwards. wind. Because the bypass air outlet 13 is provided, part of the airflow in the air duct 50 will not flow to the main air outlet 12 , but will flow out through the bypass air outlet 13 "in advance". Since the bypass air outlet 13 penetrates the bottom wall 101 of the casing 10 and blows air downward, it can directly blow the bottom surface downward, improving the cooling/heating effect of the indoor bottom space. Especially in the heating mode, the density of the hot air is low and it is easy to float up, resulting in poor heating effect in the ground floor space, and people feel cold. The invention enables the hot air to blow the ground nearly vertically downwards, thereby realizing the warming experience of feet.

The first fan 41 is located upstream of the bypass air outlet 13 for blowing air to the bypass air outlet 13 and the second fan 42 . The second blower 42 is located downstream of the bypass air outlet 13 for blowing air to the main air outlet 12 . This wind power distribution scheme is very reasonable and ingenious. When both fans are turned on, the bypass air outlet 13 is only used for blowing down, and the opening time and air volume requirements are not as good as the main air outlet 12. Therefore, the bypass air outlet 13 The outlet air flow is only pressurized by the first fan 41 . The air flow from the main air outlet 12, which is the main outlet of the air conditioner, is sequentially pressurized by the first fan 41 and the second fan 42, wherein the second fan 42 is dedicated to pressurizing the main air outlet 12. Since the load of the first fan 41 is greater, the rated air volume of the first fan 41 can be greater than that of the second fan 42 .

Further, a bypass air deflector 23 is provided at the bypass air outlet 13 . The bypass air deflector 23 is used for opening and closing the bypass air outlet 13 and/or guiding the air outlet angle of the bypass air outlet 13 . Specifically, as shown in FIGS. 1 to 3 , one end of the bypass wind deflector 23 can be rotatably mounted on one side inner wall of the bypass air outlet 13 , and the rotation axis is x3. The rotation axis x3 is parallel to the length direction of the casing 10 , that is, the direction perpendicular to the paper. Of course, a motor can be set to drive the bypass wind deflector 23 to rotate.

In the wall-mounted air conditioner indoor unit of the embodiment of the present invention, the casing 10 is not only provided with a main air outlet 12, but also provided with a bypass air outlet 13, so that the air supply range of the wall-mounted air conditioner indoor unit is larger. The bypass air outlet 13 is specially used for blowing air directly below, which meets the requirement that the heating mode needs to blow directly downward. Moreover, the bypass air outlet 13 is located between the first fan 41 and the second fan 42, the first fan 41 is used to supply air to the bypass air outlet 13 and the second fan 42, and the second fan 42 is specially used to send air to the bypass outlet 13 and the second fan 42. The main air outlet 12 supplies air, which enables the two air outlets to be supplied with sufficient air flow, the air volume can be guaranteed, and the adjustability of the air volume is stronger.

In some embodiments, as shown in FIG. 1 to FIG. 3 , the main air outlet 12 can be opened forward and downward for air outlet forward and downward. The air supply to the front, the upper front and the lower front all belong to the forward air supply.

Specifically, as shown in FIGS. 1 to 3 , the wall-mounted air conditioner indoor unit further includes a first air deflector 21 , an air outlet grill 150 and a second air deflector 22 . The first wind deflector 21 and the air outlet grill 150 are arranged in front of the main air outlet 12 along the vertical direction. The first air deflector 21 corresponds to the upper front area of the main air outlet 12 and is used for covering/opening the upper front area of the main air outlet 12 and/or guiding its air outlet direction. Specifically, the lower end of the first air deflector 21 can be rotatably mounted on the outlet grill 150 around the rotation axis x1. In this way, the first air deflector 21 can be rotated to a state extending obliquely from the rear to the front, as shown in FIG. 2 , so as to guide the airflow upward. The rotation axis x1 is parallel to the length direction of the casing 10 , that is, the direction perpendicular to the paper. The airflow flowing out of the air outlet grille 150 is very fine and has a breeze effect, making the airflow more comfortable.

The air outlet grille 150 has a plurality of grille holes 151, and the plurality of grille holes 151 are arranged along the up and down direction, and each grille hole 151 is a long strip whose length direction is parallel to the transverse direction, and the width of each grille hole 151 is Not exactly the same. That is, the embodiment of the present invention only excludes the solution that all the grid holes 151 have the same width. In the embodiment of the present invention, since the widths of the grid holes 151 are not completely the same, an unequal-distance grid structure is formed. When the gas flows out through each grid hole 151 at high speed, the unequal-distance structure of the grid makes the air flow more layered up and down. Thoroughly, the air supply distance is longer and the air supply angle is better, which helps the cold air to rise and increase the comfort of users. This solves the problem of the small air outlet distance of the traditional front air outlet grille structure. In some preferred embodiments, the widths of the grill holes 151 can be made different, so as to achieve a better airflow stratification effect. In some embodiments, each grille hole 151 can be extended obliquely from the rear to the front, so that in the front blowing mode, the airflow can be guided upward and forward, so that the upward angle of the airflow is larger and the air supply distance is longer. , spread more evenly.

The second air deflector 22 is disposed on the lower side of the main air outlet 12 for covering/opening the lower side of the main air outlet 12 and/or guiding its air outlet direction. Specifically, as shown in FIG. 1 to FIG. 3 , one end of the second air deflector 22 can be rotatably mounted on the bottom end of the air outlet grill 150 , and the rotation axis is x2. After the second wind deflector 22 is opened, the airflow blows out downwards. The rotation axis x2 is parallel to the length direction of the casing 10, that is, the direction perpendicular to the paper.

The wall-mounted air conditioner indoor unit in the embodiment of the present invention has multiple air supply modes, which improves user experience. For example, as shown in FIG. 2 , the first wind deflector 21 can be in the open state, and the second wind deflector 22 and the bypass wind deflector 23 can be in the closed state, so that the air flow is passed by the first wind deflector 21 and the air outlet. Under the guidance of the grid 150, it is blown forward, forming a front blowing mode. Alternatively, as shown in Figure 3, the first wind deflector 21 can be selected to be closed, and the second wind deflector 22 and the bypass wind deflector 23 can be opened, so that most of the airflow is blown downward, and a small part of the airflow is blown out from the outlet style. The grid 150 is blown out, constituting the down-blowing mode. When the air conditioner is in cooling operation, the front blowing mode can be operated so that the cold air can be blown out at a greater upward angle (the angle between the airflow blowing angle and the horizontal plane) to avoid the human body. "Cooling experience. When the air conditioner is heating and running, you can choose the down blowing mode, so that more hot air can be blown straight down on the bottom surface in a nearly vertical direction to achieve a warm foot experience.

In addition, as shown in Figure 4, the first wind deflector 21, the second wind deflector 22, and the bypass wind deflector 23 can all be opened to form the maximum air supply mode, so that the airflow can flow out more smoothly and with a large amount of air. , to speed up the cooling/heating speed and increase the cooling/heating capacity.

Of course, it should be understood that it is only a recommended operation mode of the present invention to select the front blowing mode for cooling and the down blowing mode for heating. Of course, the down blowing mode can also be selected for air conditioning cooling, and the front blowing mode can also be selected for heating. The blowing mode, the present invention does not make any limitation on the combination of the air conditioner operation mode and the air supply mode.

The wall-mounted air conditioner indoor unit of the present invention can realize the adjustment of the air supply distance by controlling the speed ratio of the two fans, so that the wind speed in the range of human activities is more uniform. Specifically, when the indoor unit of the wall-mounted air conditioner operates in the cooling maximum air supply mode, it senses the position of the human body through a sensor (such as an infrared sensor), and controls the speed ratio of the two fans according to the position of the human body. When the distance between the human body and the indoor unit of the wall-mounted air conditioner is less than the preset distance, the rotation speed of the first fan 41 is N1 times that of the second fan 42 , for example, N1=1. At this time, the wind speed of the forward blowing airflow is higher, and the upward force is greater. After hitting the ceiling, it decelerates and descends to the comfort zone of the human body. The downflow air volume is small, reducing the original air circulation under the indoor unit of the wall-mounted air conditioner, which can reduce the effect of temperature difference.

When the distance between the human body and the indoor unit of the wall-mounted air conditioner is greater than or equal to the preset distance, the rotation speed of the first fan 41 is N2 times that of the second fan 42 , where N2>N1. For example N2=2.4. In order to reduce the air flow of the front blowing and make the upward angle smaller, the ceiling-attached flow can be realized and the conveying distance can be increased. The increased downstream air volume can push the airflow up and back to the casing in time, reducing the indoor temperature difference.

As shown in FIGS. 1 to 3 , in the airflow direction, the air duct 50 includes an upstream section 51 and a downstream section 52 . The downstream section 52 of the air duct 50 is a diverging section, and the second fan 42 is located at the inlet of the diverging section. That is, in the airflow direction, the cross-section of the downstream section 52 of the air duct 50 gradually increases to form a gradually expanding section, and the gradually expanding downstream section 52 can be called a bell mouth design. This gradually expanding shape is conducive to realizing the nozzle effect, increasing the dynamic pressure and airflow distance, and reducing the wind loss during the flow of the airflow.

As shown in Figure 1 , the air duct 50 can be made up of a front air duct wall 200 (EJ section), a rear air duct wall 100 (AB section) behind the front air duct wall 200 and a lower air duct located below the front air duct wall 200 Wall 300 (CD segment) defines. Each air duct wall is a part of the casing 10 . The rear air duct wall 100 and the front air duct wall 200 jointly define an upstream section of the air duct 50 . The lower duct wall 300 and the front duct wall 200 together define the downstream section 52 of the duct 50 . A bypass air outlet 13 is formed between the rear air channel wall 100 and the lower air channel wall 300 . The outlet end J of the front air channel wall 200 and the outlet end D of the lower air channel wall 300 form the upper end and the lower end of the main air outlet 12 respectively.

In the wall-mounted air conditioner indoor unit of the embodiment of the present invention, the air duct 50 is defined by the front air duct wall 200, the rear air duct wall 100 and the lower air duct wall 300, and the air duct 50 is divided into two parts for placing two air ducts in a simple manner. The upstream section 51 and the downstream section 52 of each fan also define the bypass air outlet 13. Moreover, it is also more convenient to set the downstream section 52 of the air duct 50 as a gradually expanding section, so as to ensure the pressurization effect on the airflow downstream of the air duct 50 .

Specifically, the rear air channel wall 100 is in a convex and curved shape as a whole. The lower air channel wall 300 extends downwards gradually from the rear to the front as a whole. The front air duct wall 200 includes a volute tongue segment (EF segment), a connecting segment (FG segment) and an upward segment (GJ segment). The rear end F of the tongue segment (EF segment) extends forward and downward, and the upward segment (GJ segment) extends obliquely forward and upward from the front end G of the connecting segment (FG segment). The second fan 42 is located between the connection section (FG section) and the downflow channel wall 300 . Rounded corner 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 wall attachment effect of the airflow.

As shown in FIG. 1 , the rear end C of the lower air duct wall 300 can be positioned higher than the front end B of the rear air duct wall 100 , so that the downstream section 52 of the air duct 50 can form a gradually expanding section. At the same time, the part where the rear end C of the lower air duct wall 300 is higher than the front end B of the rear air duct wall 100 guides some airflow to the bypass air outlet 13 to prevent the airflow from easily entering the bypass air outlet 13 .

So far, those skilled in the art should appreciate that, although a number of 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, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A wall-mounted air conditioner indoor unit, comprising:

The casing has a main air outlet for supplying air to the room, and has an air duct for supplying airflow to the main air outlet;

the first blower is arranged at the inlet end of the air duct; and

a second blower arranged inside the air duct and downstream of the first blower;

The operation of the first blower and the second blower is controlled independently, so as to be activated simultaneously or alternatively to promote the flow of air in the air duct.
The wall-mounted air conditioner indoor unit according to claim 1, wherein,

The casing also has a bypass air outlet, which runs through the air duct and the bottom wall of the casing for downward air supply;

The first fan is located upstream of the bypass air outlet for supplying air to the bypass air outlet and the second fan;

The second blower is located downstream of the bypass air outlet for blowing air to the main air outlet.
The wall-mounted air conditioner indoor unit according to claim 2, wherein,

A bypass air deflector is arranged at the bypass air outlet.
The wall-mounted air conditioner indoor unit according to any one of claims 1-3, wherein,

The main air outlet is opened forward and downward for air outlet forward and downward.
The wall-mounted air conditioner indoor unit according to any one of claims 1-4, wherein,

The downstream section of the air duct is a diverging section, and the second blower is located at the inlet of the diverging section.
The wall-mounted air conditioner indoor unit according to claim 5, wherein,

The air passage is defined by a front air passage wall, a rear air passage wall behind the front air passage wall, and a lower air passage wall below the front air passage wall;

The rear air channel wall and the front air channel wall jointly define an upstream section of the air channel;

The lower air channel wall and the front air channel wall jointly define a downstream section of the air channel;

The bypass air outlet is formed between the rear air duct wall and the lower air duct wall;

The outlet end of the front air channel wall and the outlet end of the lower air channel wall constitute the upper end and the lower end of the main air outlet respectively.
The wall-mounted air conditioner indoor unit according to claim 6, wherein,

The rear air channel wall is convex and curved as a whole;

The wall of the lower air passage gradually extends downward from the rear to the front as a whole;

The front air channel wall includes a volute tongue section, a connecting section and an upward section, the volute tongue section extends from the front to the rear and the bottom, the connection section extends from the rear end of the volute tongue section to the front and the bottom, and the upward section extending obliquely forward and upward from the front end of the connecting section; and

The second fan is located between the connecting section and the wall of the downflow channel.
The wall-mounted air conditioner indoor unit according to claim 6 or 7, wherein,

The rear end of the lower air passage wall is located higher than the front end of the rear air passage wall.
The wall-mounted air conditioner indoor unit according to any one of claims 4-8, further comprising:

the first wind deflector and the air outlet grille are arranged in the front side of the main air outlet along the vertical direction; and

The second air deflector is arranged on the lower side of the main air outlet.
The wall-mounted air conditioner indoor unit according to claim 9, wherein,

The grid holes of the outlet grille are arranged along the vertical direction, and each of the grid holes is in the shape of a long strip whose length direction is parallel to the transverse direction, and the width of each of the grid holes is not completely the same.