CN216744830U

CN216744830U - Wall-mounted air conditioner indoor unit

Info

Publication number: CN216744830U
Application number: CN202122648449.7U
Authority: CN
Inventors: 尹晓英; 王永涛; 李英舒; 鲁镇语
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-06-14
Anticipated expiration: 2031-11-01

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a shell and a windshield. The casing is provided with an air outlet, and the upper end of the air outlet is positioned above the front of the lower end of the air outlet. The wind shield is arranged on the shell in a vertically-moving mode and comprises a vertical baffle and a top plate extending backwards from the top edge of the vertical baffle; the windshield is configured to be capable of translating up and down between a down-blowing state and a forward-blowing state; when the wind shield is in a downward blowing state, the vertical baffle is positioned at the front side of the air outlet to shield the air outlet and guide the airflow to flow downwards; when the wind shield is in a forward blowing state, the top plate is positioned at the lower side of the air outlet to guide the airflow to flow forward. The vertical baffle comprises a plurality of plate sections which are arranged up and down, and every two adjacent plate sections are connected in a rotating mode, so that when the wind shield is in a down-blowing state, the wind guide angle of the wind shield can be adjusted by rotating part of the plate sections. The wall-mounted air conditioner indoor unit can select different air supply modes for cooling and heating.

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

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

However, in order to achieve more rapid cooling and heating, it is inevitable to supply a large amount of air. However, when cold air or hot air with an excessive wind speed is directly blown to a human body, discomfort of the human body is inevitably caused. The long-term cold wind blowing of human body can also cause air conditioning diseases.

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

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to overcome or at least partially solve the above problems and to provide a wall-mounted indoor unit of an air conditioner in which different blowing modes can be selected for cooling and heating.

The utility model aims to improve the cold air raising effect.

A further object of the present invention is to enable the air conditioner to further adjust the wind direction when in the down-blowing mode.

In particular, the present invention provides a wall-mounted air conditioning indoor unit, comprising:

the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air outlet, and the upper end of the air outlet is positioned in front of and above the lower end of the air outlet; and

the windshield can be vertically and translationally installed on the shell and comprises a vertical baffle and a top plate extending backwards from the top edge of the vertical baffle;

the windshield is configured to be capable of translating up and down between a down-blowing state and a forward-blowing state; when the wind shield is in the downward blowing state, the vertical baffle is positioned on the front side of the air outlet to shield the air outlet and guide the airflow to flow downwards; when the wind shield is in a forward blowing state, the top plate is positioned at the lower side of the air outlet so as to guide the airflow to flow forwards; and is

The vertical baffle comprises a plurality of plate sections which are arranged up and down, and every two adjacent plate sections are connected in a rotating mode, so that when the wind shield is in the downward blowing state, the wind guide angle of the wind shield can be adjusted by rotating part of the plate sections.

Optionally, the vertical baffle comprises two plate sections, and a rotation axis between the two plate sections is parallel to the length direction of the casing.

Optionally, an air duct is arranged in the casing and is defined by a front air duct wall and a rear air duct wall which are arranged at a distance from each other in the front-rear direction, and outlet ends of the front air duct wall and the rear air duct wall are respectively connected with an upper end and a lower end of the air outlet; when the wind shield is in the downward blowing state, the upper surface of the top plate is attached to the front air duct wall; and when the wind shield is in the forward blowing state, the rear end of the top plate is connected with the lower end of the air outlet.

Optionally, a section of the front air duct wall adjacent to the air outlet is formed with an upwardly concave upper portion to accommodate the top plate when the windshield is in the down-blowing state.

Optionally, a section of the rear air duct wall adjacent to the air outlet is formed with a downward concave portion to accommodate the rear section of the top plate when the windshield is in the forward blowing state.

Optionally, when the windshield is in the down-blowing state, the front surface of the plate section, which is located most upward, of the vertical baffle is flush with the front surface of the casing.

Optionally, the windshield further includes two side plates, which are respectively connected to two transverse ends of the plate section at the position of the vertical baffle plate, where the plate section is located at the uppermost position, and the two side plates are respectively installed at two transverse ends of the casing in a manner of being capable of translating up and down.

Optionally, the windshield further comprises a bottom plate, and two transverse edges of the bottom plate are respectively connected to the two side plates; the bottom plate is provided with an air outlet opposite to the air outlet so as to allow the air flow to flow downwards.

Optionally, when the windshield is in the down-blowing state, the outer surfaces of the plate section and the two side plates, which are closest to the vertical baffle, are flush with the outer surface of the casing.

Optionally, the lateral side end of the casing has an installation plate, on which a rack and pinion mechanism is arranged for driving the windshield to move up and down, and the rack and pinion mechanism includes a motor, a gear and a rack that are engaged with each other; the motor set up in the mounting panel is inboard, the gear install in the motor, the rack can set up with translation from top to bottom the mounting panel is inboard, and its part passes through the vertical rectangular hole of stepping down that the mounting panel was seted up stretches out to the mounting panel outside, and with the curb plate is connected.

In the wall-mounted air conditioner indoor unit, the wind shield can be arranged at the air outlet in a vertically-sliding manner so as to have a downward blowing state and a forward blowing state, and the air flow in the shell is blown downwards or forwards. The front blowing mode can be selected when the air conditioner refrigerates, so that the air supply distance of cold air is longer, and then the cold air gradually sinks to form a shower type refrigerating effect. The down blowing mode can be selected when the air conditioner heats, so that hot air can reach the ground more easily, the carpet type air supply effect is realized, and the problem that the indoor bottom space cannot be heated due to the fact that the hot air cannot reach the ground due to low density is avoided. The wall-mounted air conditioner indoor unit can select different air supply modes during refrigeration and heating, so that the air supply direction is more matched with different requirements of refrigeration and heating, and the design is very ingenious.

In addition, the vertical baffle plate comprises a plurality of plate sections, and every two adjacent plate sections are rotationally connected, so that when the wind shield is in a downward blowing state, the wind guide angle can be changed by adjusting the angle of the lower plate section, and the air supply mode is further refined.

Furthermore, in the wall-mounted air conditioner indoor unit, the wind shield comprises a vertical baffle and a top plate, and when the wind shield is positioned at a lower blowing position with a higher position, the vertical baffle guides air to blow downwards; when the wind shield is at a lower forward blowing position, the top plate guides the airflow forward blowing. The utility model can realize the switching of the up-blowing mode and the down-blowing mode only by vertically translating the wind shield, and has very convenient control and very smart structure.

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

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

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

fig. 2 is an enlarged sectional view of the wall-mounted air conditioning indoor unit shown in fig. 1;

fig. 3 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when a vertical baffle is used for guiding air at a large angle;

fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when switching to a front blowing mode;

fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 4 after the air deflector is rotated to another angle;

FIG. 6 is an enlarged schematic view of the deflector of FIG. 4;

fig. 7 is a schematic view illustrating a structure of a windshield of the wall-mounted type air conditioning indoor unit shown in fig. 1;

FIG. 8 is another angular schematic view of the windshield shown in FIG. 7;

fig. 9 is a schematic view showing a driving method of a windshield in the wall-mounted air conditioning indoor unit shown in fig. 1.

Detailed Description

A wall-mounted type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 9. Where the terms "front", "back", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc. indicate orientations or positional relationships based on those shown in the drawings, this is for convenience in describing the utility model and to simplify the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken to be limiting of the utility model. The flow direction of the supply air flow is indicated by arrows in the figure.

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

The embodiment of the utility model provides a wall-mounted air conditioner indoor unit. A wall-mounted indoor unit of an air conditioner is an indoor part of a split wall-mounted room air conditioner for conditioning indoor air, such as cooling/heating, dehumidifying, introducing fresh air, etc.

Fig. 1 is a schematic view illustrating a structure of a wall-mounted type air conditioner indoor unit according to an embodiment of the present invention; fig. 2 is an enlarged sectional view of the wall-mounted air conditioning indoor unit shown in fig. 1; fig. 3 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when a vertical baffle is used for guiding air at a large angle; fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when switching to the front blowing mode.

As shown in fig. 1 to 4, a wall-mounted indoor unit of an air conditioner according to an embodiment of the present invention may generally include a cabinet 10 and a windshield 20.

The housing 10 is provided with an air outlet 12, and an upper end (a end) of the air outlet 12 is located above a lower end (b end) of the air outlet 12 and opens toward the front lower side. The cabinet 10 defines an accommodation space for accommodating components of a wall-mounted air conditioning indoor unit. The air outlet 12 may be opened at a lower portion of the front side of the casing 10. The outlet 12 is used for exhausting the airflow in the casing 10 to the indoor environment to condition the indoor air. The discharged air flow is referred to as air flow which is acted on by the fan 40 in the cabinet 10 to accelerate the air flow flowing through the air outlet 12 for adjusting the indoor environment, such as cold air in a cooling mode, hot air in a heating mode, fresh air in a fresh air mode, and the like. The casing 10 may be an elongated shape with a length direction (the transverse direction indicated in fig. 1) horizontally disposed, and the air outlet 12 may be an elongated shape with a length direction parallel to the length direction of the casing 10, as shown in fig. 1.

The windshield 20 is mounted to the casing 10 to be vertically movable, and the windshield 20 includes a vertical baffle 21 for shielding the air outlet 12 at a front side of the air outlet 12, and a top plate 25 extending rearward from a top edge of the vertical baffle 21. The windshield 20 is configured to translate up and down between a down-blowing state and a forward-blowing state. When the wind shield 20 is in the down-blowing state, the vertical baffle 21 is located at the front side of the air outlet 12 to shield the air outlet 12, and guides the air flow to flow downward, so that the air flow in the casing 10 cannot be blown out forward, as shown in fig. 2. When the windshield 20 is in the forward blowing state, the top plate 25 is located at the lower side of the air outlet 12 to guide the airflow forward, as shown in fig. 4. Of course, the down-blowing state and the forward-blowing state are only two limit states of the up-down reciprocal translation of the windshield 20, and the windshield 20 may be in any state therebetween.

The down blowing mode can be selected when the air conditioner heats, so that hot air can reach the ground more easily, the carpet type air supply effect is realized, and the problem that the indoor bottom space cannot be heated due to low hot air density is avoided. The air conditioner can select a forward blowing mode during refrigeration, so that the air supply distance of cold air is longer, and then the cold air gradually sinks to form a shower type refrigeration effect.

The wall-mounted air conditioner indoor unit provided by the embodiment of the utility model can select different air supply modes during refrigeration and heating, so that the air supply direction is more matched with different requirements of refrigeration and heating, and the design is very ingenious.

As shown in fig. 1 to 4, the vertical baffle 21 includes a plurality of plate segments arranged up and down, and every two adjacent plate segments are rotatably connected to each other, so that when the windshield 20 is in a down-blowing state, the wind guiding angle is adjusted by rotating a part of the plate segments. Of course, the top edge of the uppermost plate section constitutes the top edge of the upstanding wall 21, and the top plate 25 extends rearwardly from the top edge of the uppermost plate section. The angle of the plate section positioned at the top is kept unchanged, and the rest plate sections change the angle of the plate sections through rotation. The plate section can be driven to rotate by the motor and can be kept at the rotated angle, and the specific driving structure is not repeated.

Specifically, as shown in fig. 1 to 4, the vertical baffle 21 may include two

plate sections

211 and 212, and the rotation axis y between the two plate sections 211 is parallel to the length direction of the casing 10. The angle of the plate section 211 is kept constant and is always vertical, and the plate section 212 can be rotated forwards or backwards to change the angle. When the windshield 20 is in the down-blowing state, the plate section 212 may be in the vertical state, so that the plate section 211 and the air flow are guided together to blow out vertically and downwardly, as shown in fig. 2. When the plate section 212 is rotated forward to the position shown in fig. 3, the air flow can be guided to flow forward and downward, and the air outlet section is larger and the air volume is larger. Of course, the plate section 212 may be rotated backward from the state of fig. 2 to make the outlet cross section smaller.

As shown in fig. 1 and 2, when the windshield 20 is in the down-blowing state, the front surface of the plate section 211, which is positioned most upward, of the vertical baffle 21 is flush with the front surface of the casing 10, so that the windshield 20 and the casing 10 form a complete abutting appearance effect. When the wall-mounted air conditioner indoor unit is in a non-working state, the windshield 20 can be in the state, so that the appearance is more attractive.

In some embodiments, as shown in fig. 2 to 4, the casing 10 has an air duct 50 therein, and the air duct 50 is defined by a front air duct wall 200 and a rear air duct wall 100 which are spaced apart from each other in the front-rear direction. The outlet ends of the front duct wall 200 and the rear duct wall 100 are respectively connected to the upper end and the lower end of the air outlet 12, so as to guide the air flow in the cabinet 10 to the air outlet 12. An air inlet 11 is formed at the top of the casing 10, and a cross flow fan 40 having an axis extending in a transverse direction is disposed at an inlet of the air duct 50. The three-stage heat exchanger 60 surrounds the crossflow blower 40. When the wall-mounted air conditioner indoor unit operates in a cooling mode or a heating mode, indoor air enters the interior of the casing 10 through the air inlet 11, exchanges heat with the three-section heat exchanger 60, is finally sucked into the air duct 50 by the cross-flow fan 40, and flows towards the air outlet 12.

When the windshield 20 is in a down-blowing state, the upper surface of the top plate 25 abuts against the front air duct wall 200, so that the air flow flowing along the front air duct wall 200 can be better transferred to the vertical baffle 21, and is guided by the vertical baffle 21, thereby reducing the flow loss of the air flow, as shown in fig. 2. An upward concave portion 201 is formed at a section of the front duct wall 200 adjacent to the air outlet 12 to accommodate the top plate 25 when the windshield 20 is in a downward blowing state, so as to prevent the top plate 25 from protruding from the front duct wall 200 and causing resistance to the airflow.

When the windshield 20 is in the forward blowing state, the rear end of the top plate 25 is connected to the lower end of the air outlet 12, so that the airflow flowing along the rear duct wall 100 can better transit to the top plate 25, and is guided by the top plate 25, thereby reducing the flow loss of the airflow, as shown in fig. 4. A section of the rear duct wall 100 adjacent to the air outlet 12 is formed with a downward concave portion 101 to accommodate a rear section of the top plate 25 when the windshield 20 is in a forward blowing state, so as to prevent the top plate 25 from protruding from the rear duct wall 100 and causing resistance to airflow.

Fig. 5 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 4 after the air deflector is rotated to another angle, and fig. 6 is an enlarged view illustrating the air deflector of fig. 4.

In some embodiments, the wall-mounted air conditioning indoor unit further comprises a louver 30. As shown in fig. 6, the air deflector 30 includes a swing arm 32 and a plate body 31. The plate 31 is elongated with its longitudinal direction parallel to the longitudinal direction of the housing 10, and its rotation axis x is parallel to its longitudinal direction. The number of swing arms 32 may be two or more. A first end of the swing arm 32 is rotatably connected to the cabinet 10, and a second end of the swing arm 32 is connected to the plate body 31. When the air deflector 30 is in a position such that the second end is directly below the first end, the front section of the plate body 31 is in a raised shape that gradually slopes upward from a rearward front curve. When the air deflector 30 is in a position where the second end (of the swing arm 32) is located directly below the first end (of the swing arm 32), or when the swing arm 32 is in a vertically extended state, the upward surface of the plate body 31 is the first side 311, and the downward surface is the second side 312.

The air deflector 30 is configured to rotate to a lower end near the air outlet 12, and to make the first side 311 face upward to an upward air guiding position, as shown in fig. 4; or rotate to a lower wind guiding position close to the upper end of the wind outlet 12 and make the first side 311 face backwards and downwards. Specifically, the above-mentioned effect can be achieved by positioning the rotation axis x of the air deflector 30 between the upper end and the lower end of the air outlet 12. When the air deflector 30 is at the upward air guiding position, the plate 31 guides the airflow to flow upward, so that the upward angle of the airflow in the cooling forward blowing mode is larger, as shown in fig. 4. When the air deflector 30 is in the lower air guiding position, the plate body 31 is more tangent to the front air duct wall 200, so as to reduce the wind resistance when the air flow flows to the air deflector 30, as shown in fig. 2, so that the forward-blowing air flow changes direction more smoothly, flows to the vertical baffle 21 with less resistance, and is guided downwards by the vertical baffle 21. Of course, in the front blow molding mode, the air deflector 30 may be in the downward air deflecting position, as shown in fig. 5, so that the air flow is blown forward and downward.

As shown in fig. 6, the first side surface 311 includes a first straight line segment AB, a first arc segment BC, a second arc segment CD and a third arc segment DE, which are sequentially connected from back to front, and each arc segment has a concave side facing outward. The second side 312 includes a second straight section FG, a fourth curved section GH, and a fifth curved section HK, which are connected in sequence from back to front, and each of which has a convex side facing outward. Thus, the transition between the straight line section at the rear part and the raised section at the front part of the plate body 31 is more gradual, and the line type of the first side surface 311 and the second side surface 312 is more reasonable, so that the flow resistance of the air flow is smaller.

Further, the ratio of the radius of the second arc segment CD to the radius of the first arc segment BC is between 0.6 and 0.8, preferably between 0.5 and 0.7. The ratio of the radii of the third curved section DE to the first curved section BC is between 2.6 and 3.0, preferably between 2.7 and 2.9. The ratio of the radii of the fourth arcuate section GH to the fifth arcuate section HK is between 2.6 and 3.0, preferably between 2.7 and 2.9. As shown in fig. 6, when the air guide plate 30 is positioned such that the second end of the swing arm 32 is positioned directly below the first end of the swing arm 32, the ratio of the front-rear end pitch (the linear distance between K and F) of the plate 31 to the pitch (the distance between K1 and F) projected on the horizontal plane between the front-rear end pitch and the pitch (the linear distance between K and F) is 1.03 to 1.11. Through the design, the line type of the first side 311 and the second side 312 is more reasonable, so that the flow resistance of the airflow is smaller.

Fig. 7 is a schematic view illustrating a structure of a windshield of the wall-mounted type air conditioning indoor unit shown in fig. 1; fig. 8 is another angular view of the windshield shown in fig. 7.

In some embodiments, as shown in fig. 1 to 8, the windshield 20 further includes two side plates 22 respectively connected to two lateral ends of the plate section 211 located at the uppermost position of the vertical baffle 21, and the two side plates 22 are respectively configured to be mounted on two lateral sides of the casing 10 in a vertically translatable manner. The provision of the two side plates 22 provides a more aesthetic appearance to both sides of the windshield 20 and facilitates the provision of the connecting and driving structure at the lateral ends of the casing 10. In the down-blowing state, the upper end of the vertical baffle 21 abuts against the upper end of the air outlet 12, and the plate section 211 at the position of the vertical baffle 21, which is the most upper, and the outer surfaces of the two side plates 22 are flush with the outer surface of the casing 10, so that the windshield 20 and the casing 10 form a complete butt joint appearance effect. When the wall-mounted air conditioner indoor unit is in a non-working state, the windshield 20 can be in the state, so that the appearance is more attractive.

The windshield 20 also includes a base plate 23. The two lateral sides of the bottom plate 23 are connected to the two side plates 22 respectively and are located below the bottom wall of the casing 10. Thus, the bottom of the windshield 20 has a more complete and beautiful appearance. The bottom plate 23 is opened with an air outlet 230 opposite to the air outlet 12 to allow the air flow to flow out downwards. That is, the air flow in the casing 10 flows through the air outlet 12 and then blows to the indoor environment through the air outlet 230. The vertical baffle 21, the bottom plate 23 and the two side plates 22 constitute an integral piece.

When the windshield 20 is in a down-blowing state, the outer surfaces of the plate section 211 and the two side plates 22 which are positioned at the most upper position of the vertical baffle 21 are flush with the outer surface of the casing 10, so that the windshield 20 and the casing 10 form a complete butt joint appearance effect. When the wall-mounted air conditioning indoor unit is in the non-operating state, the windshield 20 can be in this state, so that the appearance is more beautiful.

In some embodiments, the wall-mounted air conditioning indoor unit utilizes a rack and pinion mechanism to drive the windshield 20 to translate up and down. As shown in fig. 9, the casing 10 has mounting plates 13 at two lateral ends, and the mounting plates 13 are provided with rack and pinion mechanisms for driving the windshield 20 to move up and down. The mounting plate 13 has a plurality of lugs 132 for attachment to the end caps of the cabinet 10 by screws. The rack and pinion mechanism includes a motor 71, a gear 72 and a rack 73 that engage with each other. The motor 71 is disposed inside the mounting plate 13, the gear 72 is mounted on the motor 71, and the rack 73 is disposed inside the mounting plate 13 so as to be vertically translatable. In particular, the mounting plate 13 may be provided with a reinforcement rib 221 on the inside thereof to be connected with the bottom section 731 of the rack 73. A part of the rack 73 extends out of the mounting plate 13 through a vertical long-strip abdicating hole formed in the mounting plate 13, and is connected with the side plate 22 of the windshield 20.

When the motor 71 drives the gear 72 to rotate, the gear 72 drives the rack 73 to move up and down, so as to drive the windshield 20 to move up and down.

In the embodiment, the main structure of the rack-and-pinion mechanism is installed at the lateral side end of the casing 10, so that the appearance of the wall-mounted air conditioner indoor unit is not affected.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, comprising:

the windshield is mounted on the shell in a vertically-moving mode and comprises a vertical baffle and a top plate extending backwards from the top edge of the vertical baffle;

2. The wall-mounted air conditioning indoor unit of claim 1,

the vertical baffle comprises two plate sections, and the rotation axis between the two plate sections is parallel to the length direction of the machine shell.

3. The wall-mounted air conditioning indoor unit of claim 1,

the shell is internally provided with an air duct which is limited by a front air duct wall and a rear air duct wall which are arranged at intervals, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the upper end and the lower end of the air outlet;

when the wind shield is in the downward blowing state, the upper surface of the top plate is attached to the front air duct wall;

and when the wind shield is in the forward blowing state, the rear end of the top plate is connected with the lower end of the air outlet.

4. The wall-mounted air conditioning indoor unit of claim 3,

an upward concave part which is concave upwards is formed on the section of the front air duct wall close to the air outlet so as to accommodate the top plate when the wind shield is in the downward blowing state.

5. The wall-mounted air conditioning indoor unit of claim 3,

and a downward concave part which is sunken downwards is formed at a section of the rear air duct wall close to the air outlet so as to accommodate the rear section of the top plate when the windshield is in the forward blowing state.

6. The wall-mounted air conditioning indoor unit of claim 1,

when the wind shield is in the downward blowing state, the front surface of the plate section, which is closest to the vertical baffle, is flush with the front surface of the shell.

7. The wall-mounted air conditioning indoor unit of claim 1,

the wind shield further comprises two side plates which are respectively connected with the two transverse ends of the plate section which is most close to the vertical baffle, and the two side plates are respectively used for being mounted at the two transverse ends of the shell in a vertically-moving mode.

8. The wall-mounted air conditioning indoor unit of claim 7,

the windshield cover also comprises a bottom plate, and the two transverse sides of the bottom plate are respectively connected to the two side plates;

the bottom plate is provided with an air outlet opposite to the air outlet so as to allow the air flow to flow downwards.

9. The wall-mounted air conditioning indoor unit of claim 8,

when the wind shield is in the down-blowing state, the outer surfaces of the plate section and the two side plates which are closest to the vertical baffle are flush with the outer surface of the shell.

10. The wall-mounted air conditioning indoor unit of claim 8,

the transverse side end of the shell is provided with an installation plate, a gear rack mechanism is arranged on the installation plate and used for driving the windshield to move up and down, and the installation plate comprises a motor, a gear and a rack which are meshed with each other;

the motor set up in the mounting panel is inboard, the gear install in the motor, the rack can set up with translation from top to bottom the mounting panel is inboard, and its part passes through the vertical rectangular hole of stepping down that the mounting panel was seted up stretches out to the mounting panel outside, and with the curb plate is connected.