CN216716392U

CN216716392U - Wall-mounted air conditioner indoor unit

Info

Publication number: CN216716392U
Application number: CN202121160481.4U
Authority: CN
Inventors: 李英舒; 陈会敏; 吴丽琴; 王永涛
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: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-06-10
Anticipated expiration: 2031-05-27

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a shell, a first air inlet, a second air inlet and a first air outlet, wherein the shell is limited with an air outlet which is open towards the front lower part; the air duct is arranged in the shell and comprises a front air duct wall and a rear air duct wall which are arranged at intervals in the front-back direction, 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 so as to guide the air flow in the shell to the air outlet; the section of the front air duct wall close to the outlet end of the front air duct wall is in a downward convex curved shape, and the tangent of the outlet end extends towards the front upper part; and the section of the rear air duct wall close to the outlet end is in a forward convex curved shape, and the tangent of the outlet end extends forward and downward or right below. The wall-mounted air conditioner indoor unit can realize the blowing of cold air and the blowing of hot air in a rising way.

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

When the air conditioner operates in a refrigeration mode, the cold air tends to sink due to relatively high density; when the air conditioner operates in a heating mode, the hot air density is relatively small and tends to rise. Therefore, the air conditioner needs to blow cold air upwards as much as possible during refrigeration, and needs to blow hot air towards the ground as much as possible during heating, so that the cold air or the hot air is diffused more uniformly in the indoor space, the refrigeration and heating speed is higher, the refrigeration and heating effects are better, and the cold and hot feelings of users are better.

The existing various wall-mounted air-conditioning indoor units are generally only provided with an air outlet which is opened towards the front lower part, and various air guide structures such as an air guide plate, a swing blade and the like are utilized to guide the air outlet direction of air supply airflow so as to realize upward air blowing or downward air blowing. However, the current wind guiding structures have limited wind guiding angles, and only can supply wind obliquely upwards or obliquely downwards, and cold wind or hot wind still cannot reach a roof or a floor area, so that the cooling or heating effect is influenced.

SUMMERY OF THE UTILITY MODEL

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

The utility model aims to provide a wall-mounted air conditioner indoor unit capable of meeting the requirements of cold air rising and blowing and hot air sinking and blowing.

It is a further object of the present invention to reduce flow losses of the air flow within the air duct.

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

a housing defining an air outlet opening downward and forward;

the air duct is arranged in the shell and comprises a front air duct wall and a rear air duct wall which are arranged at intervals in the front-back direction, 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 so as to guide the air flow in the shell to the air outlet;

the section of the front air duct wall close to the outlet end of the front air duct wall is in a downward convex curved shape, and the tangent of the outlet end extends towards the front upper part; and is

The section of the rear air duct wall close to the outlet end of the rear air duct wall is in a forward convex curved shape, and the tangent of the outlet end extends forward to the lower part or right below.

Optionally, the front duct wall comprises:

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

the connecting section extends forwards and downwards from the rear end of the volute tongue section; and

the lower arc line section extends forwards from the rear end of the connecting section and is in an arc shape protruding downwards, and the front end of the lower arc line section forms the outlet end of the front air duct wall and the tangent line extends towards the front upper side.

Optionally, the rear duct wall comprises:

the main body section is in an arc shape protruding towards the back, and the upper end of the main body section forms an inlet end of the back air duct wall; and

and the front convex arc line segment obliquely extends from the lower end of the main body segment to the front lower part and is in an arc shape protruding forwards, and the lower end of the front convex arc line segment forms the outlet end of the rear air duct wall and the tangent line extends forwards and downwards.

Optionally, the wall-mounted indoor air conditioner further includes:

the front air guide plate is rotatably arranged on the front side of the air outlet and is used for opening or shielding the front side of the air outlet or guiding the air outlet direction; and

and the lower air deflector is rotatably arranged at the lower side of the air outlet and is used for opening or shielding the lower side of the air outlet or guiding the air outlet direction.

Optionally, when the front wind deflector is in a closed state, a pivot axis of the front wind deflector is located behind the center of a plate body of the front wind deflector; when the lower air deflector is in a closed state, the pivot shaft of the lower air deflector is positioned above the front part of the plate body of the lower air deflector.

Optionally, the wall-mounted indoor air conditioner further includes:

the front baffle can be vertically and translationally installed on the shell so as to be translated upwards to an open state positioned at the upper side of the air outlet or be translated downwards to a closed state for shielding the front side of the air outlet; and

Optionally, the casing further includes a connecting portion located directly below the front end of the front air duct wall and directly in front of the lower end of the rear air duct wall, so as to divide the air outlet into a front air outlet located above the connecting portion and a lower air outlet located behind the connecting portion.

Optionally, the wall-mounted indoor air conditioner further includes:

the front air guide plate is rotatably arranged on the shell and is used for opening or shielding the front air outlet or guiding the air outlet direction of the front air outlet; and

and the lower air guide plate is rotatably arranged on the shell and is used for opening or shielding the lower air outlet or guiding the air outlet direction of the lower air outlet.

Optionally, the pivot axis of the front air deflector is located at its upper end and adjacent to the outlet end of the front air duct wall; and the pivot axis of the lower air deflector is positioned at the front end of the lower air deflector and is close to the connecting part.

Optionally, the outer contour of the connecting portion includes a front surface facing forward, a lower surface facing downward, and an arc-shaped air guide surface facing the inside of the air duct and protruding outward.

In the wall-mounted air conditioner indoor unit, the section of the front air duct wall of the air duct, which is close to the outlet end, is in a downward convex curved shape, and the tangent of the outlet end extends towards the front upper part. When the air outlet blows out air towards the front upper part (such as a refrigeration mode), the air flow is gradually raised along the surface of the front air channel wall when flowing forwards along the surface of the front air channel wall under the action of a coanda effect (when surface friction exists between the fluid and the surface of an object through which the fluid flows (fluid viscosity can be said) as long as the curvature is not large, the raising angle of the air flow is larger, and when the air conditioner performs refrigeration and upward blowing, the raising angle of the air flow is favorably improved, so that cold air is blown out at the larger raising angle (the included angle between the air flow blowing angle and the horizontal plane) to avoid a human body, and the cold air is scattered downwards after reaching the highest point, so that a 'shower type' refrigeration experience is realized. And the section of the rear air duct wall of the air duct close to the outlet end of the rear air duct wall is in a forward convex curved shape, and the tangent line of the outlet end extends towards the front lower part or the front lower part.

Furthermore, in the wall-mounted air conditioner indoor unit, the air outlet is provided with the front air deflector (or the front baffle) and the lower air deflector. The front air guide plate (or the front baffle plate) has the effect of shielding the air outlet at the front side of the air outlet, so that the upper edge of the air outlet can be designed to be more upper, and the lower air guide plate can guide air upwards at a larger uplifting angle (the upper edge of the air outlet is closer to the upper side, and the theoretical maximum uplifting angle is larger). Moreover, the air outlet area of the air outlet is larger, so that air outlet is smoother, the wind resistance is reduced, and large-air-volume air supply is facilitated.

Furthermore, in the wall-mounted air conditioner indoor unit, the outer contour of the connecting part comprises a front surface facing forwards, a lower surface facing downwards and an arc-shaped air guide surface facing outwards towards the inner side of the air duct, when the front air outlet discharges air, the arc-shaped air guide surface can guide airflow towards the front upper part, and when the lower air outlet discharges air, the arc-shaped air guide surface can guide airflow downwards, so that the design is very ingenious.

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 view illustrating a duct structure of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a schematic view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention when an outlet is closed;

fig. 3 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 2 operating in an up-blowing mode;

fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a down-blowing mode of operation;

fig. 5 is a schematic view illustrating the wall-mounted air conditioner indoor unit of fig. 2 operating in a maximum outlet mode;

fig. 6 is a schematic view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention, in which a front flap is closed;

fig. 7 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 6 with a front flap in an open state;

fig. 8 is a schematic view illustrating a wall-mounted air conditioning indoor unit according to still another embodiment of the present invention when an outlet is closed;

fig. 9 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 8 in an up-blowing mode;

fig. 10 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 8 in a down-blowing mode;

fig. 11 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 8 operating in a maximum outlet mode.

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 11. Where the orientations or positional relationships indicated by the terms "front," "back," "upper," "lower," "top," "bottom," "inner," "outer," "lateral," and the like are based on the orientations or positional relationships shown in the drawings, the description is for convenience only and to simplify the description, and no indication or suggestion is made that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model. The flow direction of the air flow is indicated by arrows in the figure.

The terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate 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.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and "coupled" and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

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

Fig. 1 is a schematic structural view of an air duct 20 of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.

As shown in fig. 1, a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention may generally include a casing 10 and an air duct 20.

Wherein, the housing 10 is provided with an air outlet 12 opening towards the front lower part. The casing 10 defines an accommodation space for accommodating components of a wall-mounted air conditioning indoor unit. The outlet 12 may be opened at a lower portion of the front side of the housing 10 so as to be opened toward the front lower side. The outlet 12 is used to discharge the airflow in the housing 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 a fan in the housing 10 to accelerate the air flow passing through the air outlet 12 for conditioning 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 housing 10 may be a long strip with a length direction horizontally arranged, and the air outlet 12 may be a long strip with a length direction parallel to the length direction of the housing 10, where the length direction of the housing 10 is perpendicular to the paper surface of fig. 1.

The air duct 20 is disposed in the casing 10, the air duct 20 includes a front air duct wall 200 and a rear air duct wall 100 disposed at a front-rear interval, outlet ends of the front air duct wall 200 and the rear air duct wall 100 are respectively connected to an upper end and a lower end of the air outlet 12, so as to guide an air flow in the casing 10 to the air outlet 12, and blow the air flow to an indoor environment through the air outlet 12, thereby completing air conditioning, such as cooling and heating, of the indoor environment.

The wall-mounted air conditioner indoor unit of the embodiment of the utility model can be an indoor part of a split wall-mounted room air conditioner which utilizes a vapor compression refrigeration cycle system to carry out refrigeration/heating. As shown in fig. 1, the inside of the case 10 is provided with a heat exchanger 30 and a fan 40. The heat exchanger 30, the throttling device and a compressor, a condenser and other refrigeration elements arranged in the air-conditioning outdoor shell are connected through pipelines to form a vapor compression refrigeration cycle system. Under the action of the fan 40, the indoor air enters the inside of the housing 10 through the air inlet 11 at the top of the housing 10, and after completing the forced convection heat exchange with the heat exchanger 30, forms heat exchange air, and then blows toward the air outlet 12 under the guidance of the air duct 20. The fan 40 is preferably a cross flow fan having an axis parallel to the length of the housing 10, and is disposed at the inlet of the air duct 20. The heat exchanger 30 may be a three-stage heat exchanger,

as shown in fig. 1, a section of the front duct wall 200 adjacent to the outlet end thereof is curved to be convex downward, and an outlet end tangent line C1 extends upward and forward. Moreover, the section of the rear air duct wall 100 near the outlet end thereof is curved to protrude forward, and the outlet end tangent line C2 extends forward downward or directly downward.

According to the coanda effect, when there is surface friction (also called fluid viscosity) between a fluid and the surface of an object over which it flows, the fluid follows the surface of the object as long as the curvature is not large. Because the outlet section of the front air duct wall 200 adopts the above shape, when the air outlet 12 is blown out towards the front upper side (for example, in a refrigeration mode), the air flow gradually rises along the surface of the front air duct wall 200 under the action of the coanda effect, the rising angle of the air flow is larger, and when the air conditioner is refrigerated and blown up, the rising angle of the air flow is favorably improved, so that cold air is blown out at the larger rising angle (the included angle between the air flow blowing angle and the horizontal plane) to avoid a human body, and the cold air is scattered downwards after reaching the highest point, thereby realizing the 'shower type' refrigeration experience.

Similarly, since the section of the rear duct wall 100 of the duct 20 near the outlet end is curved protruding forward, and the tangent of the outlet end extends forward or downward, when the air outlet 12 supplies air downward (for example, in a heating mode), the air flow gradually inclines downward along the surface of the rear duct wall 100, so that the air flow outlet direction is closer to or reaches a vertical downward direction, and reaches the ground more, thereby achieving a "carpet" air supply effect.

Specifically, as shown in fig. 1, the front duct wall 200 includes a volute tongue section EF, a connecting section FG, and a lower convex line section GJ. The front end of the volute tongue section EF constitutes the inlet end of the front duct wall 200, and extends from the front upper side to the rear lower side. The volute tongue section EF is opposite the fan 40. The connecting section FG extends forward and downward from the rear end of the volute tongue section EF. The lower arc line segment GJ extends forward from the rear end of the connecting segment FG, and is an arc that is convex downward (i.e., the axis of the arc is located above it), the axis of the arc being parallel to the lateral direction of the air outlet 12. The lateral direction of the outlet port 12 refers to the lateral direction of the housing 10, that is, the direction perpendicular to the paper surface in fig. 1. The front end of the lower arcuate line segment GJ constitutes the outlet end of the front duct wall 200 and the tangent C1 extends upward and forward. The adjacent sections can adopt fillet transition to reduce the resistance loss of the airflow, make the airflow steering more smooth and facilitate the wall attachment effect of the airflow. The connecting section FG can be a straight line section, and the value range of the included angle theta between the connecting section FG and the horizontal direction is more than or equal to 20 degrees and less than or equal to 30 degrees, so that the turning angle between the connecting section FG and the lower arc line section GJ is most reasonable, and the phenomenon that the airflow is far away from the surface of the lower arc line section GJ due to the fact that the turning angle is too large is avoided. The radius value range of the lower arc line segment GJ is preferably more than or equal to 100mm and less than or equal to 300mm, so that the airflow attachment effect is enhanced, and the phenomenon that the airflow is far away from the surface of the lower arc line segment GJ due to the overlarge turning angle is avoided.

As shown in fig. 1, the rear duct wall 100 includes a main body segment AB and a forward convex arc segment BC. Wherein the main body section AB is in the shape of an arc projecting rearward, the upper end of which constitutes the inlet end of the rear duct wall 100. The main section AB encloses the fan 40 in half on its rear side. The front convex arc segment BC extends obliquely from the lower end of the main body segment AB toward the front lower side, and is an arc shape protruding forward, and the lower end thereof constitutes the outlet end of the rear duct wall 100 and the tangent C2 extends toward the front lower side. The arc axes of the main body segment AB and the front convex arc segment BC are both parallel to the transverse direction of the air outlet 12.

Fig. 2 is a schematic view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention when an outlet 12 is closed; fig. 3 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 2 operating in an up-blowing mode; fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a down-blowing mode of operation; fig. 5 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 2 operating in a maximum outlet mode.

As shown in fig. 2 to 5, in an embodiment of the present invention, the wall-mounted air conditioning indoor unit further includes a front air deflector 50 and a lower air deflector 60. The front wind guide plate 50 is rotatably installed at the front side of the air outlet 12, and is used for opening or shielding the front side of the air outlet 12 or guiding the wind outlet direction. The lower air deflector 60 is rotatably installed at the lower side of the air outlet 12, and is used for opening or shielding the lower side of the air outlet 12 or guiding the air outlet direction. Two motors are installed in the casing 10 for driving the front wind deflector 50 and the lower wind deflector 60 to rotate, respectively.

When the air conditioner stops operating, the front air deflector 50 may be rotated to be in or close to a closed state extending vertically, and the lower air deflector 60 may be rotated to be in or close to a closed state extending horizontally, as shown in fig. 2, such that the lower end of the front air deflector 50 is close to the front end of the lower air deflector 60. When the air conditioner needs to perform the upper blow molding mode (e.g., the cooling mode), the front air deflector 50 may be rotated to a state of being gradually inclined upward from the rear to the front, and the lower air deflector 60 may be rotated to a closed state or a state of being gradually inclined upward from the rear to the front, as shown in fig. 3, so as to cooperate with the front air duct wall 200 to guide the air flow upward and forward. When the air conditioner needs to perform the lower blow molding mode (e.g., the heating mode), the front air guiding plate 50 may be rotated to the closed state, and the lower air guiding plate 60 may be rotated to the vertically extended state, so as to cooperate with the rear air duct wall 100 to guide the air flow to the right downward direction, as shown in fig. 4. When the air conditioner needs to accelerate the air conditioning speed, the maximum air outlet mode can be operated, that is, the front air deflector 50 and the lower air deflector 60 are rotated to be gradually inclined downwards from back to front, and are parallel or nearly parallel, so that the air outlet is smooth, and the air volume is maximum, as shown in fig. 5.

In some embodiments, as shown in fig. 2-5, the front louver 50 has its pivot axis x located behind the center of its plate when in the closed state. When the lower air deflector 60 is in the closed state, the pivot axis y thereof is located above the front of the plate body thereof. By such design, the front air deflector 50 and the lower air deflector 60 can smoothly rotate to the above-mentioned up-blowing, down-blowing and maximum air-out states without interference.

In this embodiment, by providing two wind deflectors, the front wind deflector 50 has an effect of shielding the wind outlet 12 at the front side of the wind outlet 12, so that the upper edge of the wind outlet 12 can be designed to be closer to the upper side, and the wind deflector 60 can guide wind upwards at a larger upward lifting angle (the upper edge of the wind outlet 12 is closer to the upper side, and the theoretical maximum upward lifting angle is larger). Moreover, the air outlet area of the air outlet 12 is larger, so that the air outlet is smoother, the wind resistance is reduced, and the large-air-volume air supply is facilitated.

Fig. 6 is a schematic view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention, when a front flap 70 is in a closed state; fig. 7 is a schematic view of the wall-mounted air conditioning indoor unit shown in fig. 6 in a state where the front flap 70 is open.

As shown in fig. 6 and 7, in another embodiment of the present invention, a wall-mounted air conditioning indoor unit includes a front baffle 70 and a lower air guide 60. The front baffle 70 is mounted on the housing 10 in a vertically movable manner, so as to be moved upward to an open state (as shown in fig. 7) at the upper side of the air outlet 12, or moved downward to a closed state (as shown in fig. 6) at the front side of the air outlet 12. The lower air deflector 60 is rotatably installed at the lower side of the air outlet 12, and is used for opening or shielding the lower side of the air outlet 12 or guiding the air outlet direction. By providing the front baffle 70, the edge of the outlet 12 can be designed to be more upper.

The front baffle 70 may be disposed inside the housing 10, particularly between the front panel of the housing 10 and the heat exchanger 30, and the front baffle 70 is driven to translate to the closed position or the open position by a translation driving device. However, such a design would make the front flap 70 occupy a large space inside the casing 10, and it is very disadvantageous that the front flap 70 increases the thickness (the size in the front-rear direction) of the wall-mounted air conditioning indoor unit in a trend toward a thinner and lighter wall-mounted air conditioning indoor unit.

In a preferred embodiment of the present invention, the front side of the housing 10 is formed with a receiving opening 17 for receiving the front barrier 70 in the closed position, as shown in fig. 7. This enables the front panel 70 to be exposed to the outside as a part of the front panel of the wall-mounted air conditioning indoor unit, that is, the front surface 151 of the front panel 70 constitutes the appearance of the front portion of the wall-mounted air conditioning indoor unit. The design has the advantages that the front baffle 70 is installed on the inner side of the shell 10 without moving up and down, and occupies the originally narrow space layout on the inner side of the shell 10; on the other hand, the opening movement of the front baffle 70 has strong ornamental value, so that the appearance of the wall-mounted air conditioner indoor unit is very attractive, and the modern sense and the technological sense of the wall-mounted air conditioner indoor unit are improved.

As shown in fig. 6, a motor 73 is installed in the housing 10, a gear 72 is fixed on the motor 73, and the gear 72 is matched with the rack 71 at the rear side of the front baffle 70 to form a gear-rack structure, so as to drive the front baffle 70 to move up and down.

Fig. 8 is a schematic view of a wall-mounted air conditioning indoor unit according to still another embodiment of the present invention, when the outlet 12 is closed; fig. 9 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 8 operating in an up-blowing mode; fig. 10 is a schematic view illustrating a wall-mounted air conditioning indoor unit of fig. 8 in a down-blowing mode of operation; fig. 11 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 8 operating in a maximum outlet mode.

As shown in fig. 8 to 11, in still another embodiment of the present invention, a casing 10 in a wall-mounted air conditioning indoor unit includes a connection part 15. The connecting portion 15 is located right below the front end of the front duct wall 200 and right in front of the lower end of the rear duct wall 100, so as to divide the air outlet 12 into a front air outlet 121 located above the connecting portion 15 and a lower air outlet 122 located behind the connecting portion 15. Therefore, the air outlet of different air outlet modes can be conveniently controlled.

Specifically, the outer contour of the connecting portion 15 may include a front surface 151 facing forward, a lower surface 152 facing downward, and an arc-shaped air guide surface 153 facing outward toward the inside of the air duct 20. When preceding air outlet 121 goes out wind, arc air guide surface 153 can guide the air current to the front upper side, and when lower air outlet 122 goes out wind, arc air guide surface 153 can guide the air current downwards, and the design is very ingenious.

As shown in fig. 8 to 11, the wall-mounted air conditioning indoor unit further includes a front air deflector 50 and a lower air deflector 60. The front air guiding plate 50 is rotatably mounted to the housing 10 for opening or shielding the front air outlet 121 or guiding the air outlet direction thereof. The lower wind guide plate 60 is rotatably mounted on the housing 10 for opening or shielding the lower wind outlet 122 or guiding the wind direction thereof. Two motors are installed in the casing 10 for driving the front wind deflector 50 and the lower wind deflector 60 to rotate, respectively.

When the air conditioner stops operating, the front air guide plate 50 may be rotated to be in or near a vertically extending closed state, and the lower air guide plate 60 may be rotated to be in or near a horizontally extending closed state, as shown in fig. 8. When the air conditioner needs to perform the upper blow molding mode (e.g., the cooling mode), the lower air deflector 60 may be rotated to the closed state, and the front air deflector 50 may be rotated to a state of gradually inclining upward from the rear to the front, so as to cooperate with the front air duct wall 200 to guide the air flow forward and upward, as shown in fig. 9. When the air conditioner needs to perform a down-blowing mode (e.g., a cooling mode), the front air deflector 50 may be rotated to a closed state, and the lower air deflector 60 may be rotated to a vertically extended state, so as to cooperate with the rear air duct wall 100 to guide the air flow to a right downward direction, as shown in fig. 10. When the air conditioner needs to accelerate the air conditioning speed, the maximum air outlet mode can be operated, that is, the front air deflector 50 and the lower air deflector 60 are rotated to be gradually inclined downwards from back to front, and are parallel or nearly parallel, so that the air outlet is smooth, and the air volume is maximum, as shown in fig. 11.

In some embodiments, as shown in fig. 9, the pivot axis x of the front air deflector 50 is located at the upper end thereof and adjacent to the outlet end of the front air duct wall 200, and the pivot axis y of the lower air deflector 60 is located at the front end thereof and adjacent to the connecting portion 15. By such design, the front air deflector 50 and the lower air deflector 60 can smoothly rotate to the above-mentioned up-blowing, down-blowing and maximum air-out states without interference.

Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the utility model have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly 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:

a housing defining an air outlet opening downward and forward;

2. The wall mounted air conditioning indoor unit of claim 1, wherein the front air duct wall comprises:

3. The wall mounted air conditioning indoor unit of claim 1, wherein the rear air duct wall comprises:

4. The wall-mounted air conditioning indoor unit of claim 1, further comprising: the front air guide plate is rotatably arranged on the front side of the air outlet and is used for opening or shielding the front side of the air outlet or guiding the air outlet direction; and

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

when the front air guide plate is in a closed state, the pivot shaft of the front air guide plate is positioned behind the center of the plate body of the front air guide plate;

when the lower air deflector is in a closed state, the pivot shaft of the lower air deflector is positioned above the front part of the plate body of the lower air deflector.

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

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

the casing still includes connecting portion, and it is in under preceding air duct wall front end and be in the dead ahead of back air duct wall lower extreme to with the air outlet is separated and is located the preceding air outlet of connecting portion top and being located the lower air outlet of connecting portion rear.

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

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

the pivot shaft of the front air guide plate is positioned at the upper end of the front air guide plate and is close to the outlet end of the front air duct wall; and is

The pivot axis of the lower air deflector is positioned at the front end of the lower air deflector and is close to the connecting part.

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

the outer contour of the connecting part comprises a front surface facing forwards, a lower surface facing downwards and a convex arc air guide surface facing towards the inner side of the air duct.