CN216716391U - Wall-mounted air conditioner indoor unit - Google Patents

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a shell, a front air outlet, a rear air outlet, a front air outlet and a rear air outlet, wherein the shell is limited with the front air outlet which is open forwards and the lower air outlet which is open downwards; 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-rear direction, and the outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the top edge of the front air outlet and the rear edge of the lower air outlet so as to guide the air flow in the shell to the front air outlet and the lower air outlet; the casing includes the partition portion, and it is located between preceding air outlet and the lower air outlet in order to separate both, and the surface of partition portion orientation casing inboard and indoor environment is wind-guiding face and non-wind-guiding face respectively, and the air current passageway that runs through wind-guiding face and non-wind-guiding face is seted up to the partition portion to draw forth partial air current in the casing. The wall-mounted air conditioner indoor unit can effectively prevent condensation of the non-air guide surface.

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 achieve 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

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 condensation of the air flow on the air guide surface of the partition.

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

a housing defining a front air outlet opening forward and a lower air outlet opening downward; and

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-rear direction, and outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the top edge of the front air outlet and the rear edge of the lower air outlet so as to guide airflow in the shell to the front air outlet and the lower air outlet;

the shell comprises a partition part which is positioned between the front air outlet and the lower air outlet so as to separate the front air outlet from the lower air outlet, the surfaces of the partition part facing the inner side of the shell and the indoor environment are respectively an air guide surface and a non-air guide surface, and the partition part is provided with an air flow channel penetrating through the air guide surface and the non-air guide surface so as to lead out partial air flow in the shell.

Optionally, the partition is a hollow structure; and is

The air guide surface is provided with a plurality of air inlet micropores communicated with the inner space of the partition part, the non-air guide surface is provided with a plurality of air outlet micropores communicated with the inner space of the partition part, and the air inlet micropores, the inner space of the partition part and the air outlet micropores jointly form the airflow channel.

Optionally, the partition is of a solid structure and is provided with a plurality of ventilation micropores penetrating through the air guide surface and the non-air guide surface, and the ventilation micropores form the airflow channel.

Optionally, the axes of a plurality of the ventilation micro-holes extend gradually obliquely downward from the rear to the front.

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

the front air guide plate is rotatably arranged at the front air outlet, and a pivot shaft of the front air guide plate is positioned at the top end of the front air guide plate and is close to the upper edge of the front air outlet; and

the lower air deflector is rotatably arranged at the lower air outlet, the forward end of the lower air deflector in a horizontal state is a first end, the backward end of the lower air deflector is a second end, and the pivoting shaft of the lower air deflector is close to the first end, so that the second end is abutted against the front air duct wall when the lower air deflector rotates to a vertical state.

Optionally, the wind guide surface comprises an inner concave arc-shaped segment which extends from back to front and gradually inclines upwards.

Optionally, the wind guide surface sequentially includes, from back to front:

a vertical section facing rearward and constituting a bottom section of the air guide surface;

the concave arc-shaped section extends forwards from the top end of the vertical section and gradually inclines upwards; and

the top convex arc section forms the top section of the air guide surface, and the rear end of the top convex arc section is smoothly connected with the upper end of the concave arc section.

Optionally, a section of the front air duct wall adjacent to the outlet end thereof is curved to protrude downward, and the tangent of the outlet end extends forward and upward; 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 air 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.

In the wall-mounted air conditioner indoor unit, the shell is provided with the front air outlet and the lower air outlet, the front air outlet can better supply air to the front and the front upper part, and cold air can be blown upwards during refrigeration. The lower air outlet is arranged downwards, so that air can be better supplied downwards, and hot air sinking and blowing can be realized during heating. Because the independent lower air outlet is arranged, the front air outlet does not need to be exhausted downwards, the upper edge of the front air outlet can be designed to be closer to the upper side, and the air outlet is favorable for being lifted upwards. In addition, the partition part is provided with an airflow channel penetrating through the air guide surface and the non-air guide surface, so that partial airflow in the shell can flow to an indoor environment through the interior of the partition part, and the air flow with high humidity can be effectively prevented from generating condensation at the non-air guide surface during air conditioning refrigeration.

Furthermore, in the wall-mounted air conditioner indoor unit, the air guide surface of the partition part between the front air outlet and the lower air outlet comprises the concave arc-shaped section which gradually inclines upwards from back to front, so that the air flow of the air duct can be better guided towards the front upper part, and the upward air outlet effect of the front air outlet is enhanced.

Furthermore, in the wall-mounted air conditioner indoor unit of the utility model, the section of the front air duct wall of the air duct, which is close to the outlet end, is of 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 that the back wind channel wall of wind channel is close to its exit end is forward convex curved shape, and exit end tangent line extends forward below or under, and when the lower air outlet was air supply downwards (for example heat the mode), the air current along the downward slope flow of surface of back wind channel wall gradually for the air current air-out direction is more close or reaches vertical decurrent direction, with more arrival ground, realizes "carpet formula" air supply effect.

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 cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the divider of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a partition in another embodiment of the utility model;

FIG. 4 is a schematic view of the peripheral profile of a divider of one embodiment of the present invention;

fig. 5 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 1 operating in an up-blowing mode;

fig. 6 is a schematic view illustrating a down-blowing mode of the wall-mounted air conditioning indoor unit of fig. 1;

fig. 7 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 1 operating in a maximum outlet mode;

FIG. 8 is a schematic view of an embodiment of the present invention.

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 8. 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", 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.

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. 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 cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention; fig. 2 is an enlarged schematic view of the partition in fig. 1.

As shown in fig. 1 and 2, 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.

The case 10 defines a front air outlet 121 opened forward and a lower air outlet 122 opened downward. The casing 10 defines an accommodation space for accommodating components of a wall-mounted air conditioning indoor unit. The front air outlet 121 is used for supplying air to the front, front upper side and front lower side, and may be opened at a lower portion of the front surface of the housing 10. The lower outlet 122 is used for blowing air downward, and may be opened at the front portion of the bottom surface of the housing 10 to be adjacent to the front outlet 121. The front outlet 121 and the lower outlet 122 are used to discharge airflow inside the housing 10 to the indoor environment to condition 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 front air outlet 121 and the lower air outlet 122 for adjusting the indoor environment, such as cool air in a cooling mode, warm air in a heating mode, and fresh air flow in a fresh air mode, and so on. The casing 10 may be a long strip with a length direction horizontally disposed, and the front air outlet 121 and the lower air outlet 122 may be long strips with a length direction parallel to the length direction of the casing 10, where the length direction of the casing 10 is perpendicular to the paper surface of fig. 1.

The duct 20 is disposed in the housing 10 and includes a front duct wall 200 and a rear duct wall 100 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 top edge of the front air outlet 121 and the rear edge of the lower air outlet 122, so as to guide the air flow in the casing 10 to the front air outlet 121 and the lower air outlet 122, and the air flow is blown to the indoor environment through the front air outlet 121 and the lower air outlet 122, 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 casing 10 through the air inlet 11 at the top of the casing 10, after completing the forced convection heat exchange with the heat exchanger 30, forms heat exchange air, and then blows to the two air outlets 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 and 2, the casing 10 further includes a partition 15, and the partition 15 is located between the front air outlet 121 and the lower air outlet 122 to separate the two. The housing 10 may be elongated, with the length direction perpendicular to the paper surface of fig. 1, and the partition 15 is also elongated parallel to the length direction of the housing 10, and both ends thereof are connected to the rest of the housing 10.

In the embodiment of the present invention, the casing 10 is provided with the front air outlet 121 and the lower air outlet 122, and the front air outlet 121 can better supply air to the front and the front upper side, and can realize the upward blowing of cold air during refrigeration. The lower air outlet 122 is opened downward, so that air can be better supplied downward, and hot air sinking and blowing can be realized during heating. And because the independent lower air outlet 122 is arranged, the front air outlet 121 does not need to be blown out downwards, and the upper edge of the front air outlet 121 can be designed to be closer to the upper side, so that the air can be blown out upwards.

The outer peripheral surface of the partition 15 includes a plurality of portions, in which a surface facing the inside of the casing 10 is an air guide surface 153, and a surface facing the indoor environment is a non-air guide surface (for example, fig. 2 includes non-air guide surfaces 151 and 152). The partition 15 is opened with an airflow passage penetrating the air guide surface 153 and the non-air guide surfaces 151 and 152 to draw out a part of the airflow in the casing 10.

The inventor finds that, because the partition 15 is located at the outlet of the air duct 20 and is directly blown by the cold air, the temperature is low, and the water vapor in the air is easy to be condensed on the surface of the partition, so that condensation is generated. Since no air flow blows through the non-air guide surfaces 151 and 152 of the partition 15, condensation is more likely to accumulate. In the embodiment of the utility model, the airflow channel is arranged to lead out the air flow, so that the airflow is blown out from the non-air- guide surfaces 151 and 152 to form a disturbed flow field, condensation cannot be effectively formed and accumulated nearby, and the phenomenon that the condensation drops into an indoor environment due to the occurrence of larger condensation and influences user experience is avoided.

In some embodiments, as shown in FIG. 3, the divider 15 is a hollow structure, or a so-called hollow shell structure. The air guide surface 153 has a plurality of air inlet micropores 1501 opened inward to communicate with the partition inner space 150, and the non-air guide surfaces 151 and 152 have a plurality of air outlet micropores 1502 opened inward to communicate with the partition inner space 150. In this way, the air inlet microhole 1501, the partition inner space 150, and the air outlet microhole 1502 collectively constitute the aforementioned "air guide passage passing through the air guide surface and the non-air guide surface".

Air inlet micropores 1501 and air outlet micropores 1502 are preferably circular holes to facilitate processing. The diameter of the air conditioner is preferably less than 1cm, and more preferably less than 0.5cm, so that condensation can be avoided, and the influence of excessive air flow flowing out of the air conditioner on normal air supply of the air conditioner can be avoided. The opening ratio (total area of all holes/total area of non-air-guide surfaces) of the non-air- guide surfaces 151 and 152 is preferably 30% to 60%, and so is the opening ratio of the air-guide surface 153.

Fig. 3 is a schematic cross-sectional view of a partition in another embodiment of the present invention. In other embodiments of the present invention, referring to fig. 3, the separating portion 15 is a solid structure, and a plurality of ventilation micropores 1503 are formed through the air guiding surface 153 and the non-air guiding surfaces 151 and 152, that is, each ventilation micropore 1503 penetrates through the air guiding surface 153 and the non-air guiding surface 151 (or the non-air guiding surface 152). Ventilation micropores 1503 constitute the aforementioned airflow channels.

As shown in fig. 3, the axes of the plurality of ventilation micro holes 1503 may be extended to be gradually inclined downward from the rear to the front so as to be close to the overall direction of the wind tunnel 20, so that the airflow can more easily enter the ventilation micro holes 1503. The open area ratio of non-wind directing surfaces 151,152 (total area of all ventilation apertures 1503/total area of non-wind directing surfaces) is preferably between 30% and 60%, as is the open area ratio of wind directing surface 153. The ventilation micro holes 1503 are preferably circular holes to facilitate processing. The diameter of the air conditioner is preferably less than 1cm, and more preferably less than 0.5cm, so that condensation can be avoided, and the influence of excessive air flow flowing out of the air conditioner on normal air supply of the air conditioner can be avoided.

FIG. 4 is a schematic view of the peripheral profile of a divider in accordance with an embodiment of the present invention. The figure only illustrates the peripheral outline of the partition 15, without illustrating its open-pore configuration. Fig. 5 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 1 operating in an up-blowing mode;

as shown in fig. 1, 4 and 5, in some embodiments, the wind guide surface 153 includes a concave arc segment LM extending obliquely upward from the rear to the front. The concave arc segment LM means that its central axis is located at the rear upper side, and the middle portion is concave toward the inside of the partition 15 than both ends.

Moreover, the air guide surface 153 of the partition portion 15 between the front air outlet 121 and the lower air outlet 122 includes an inward concave arc segment LM which gradually inclines upward from back to front, so that the air flow of the air duct 20 can be better guided to the front upper side, and the upward air outlet effect of the front air outlet 121 is enhanced.

In some embodiments, as shown in fig. 4, the wind guide surface 153 includes a vertical section KL, an inner concave arc section LM, and a top outer convex arc section MN sequentially from back to front. The vertical section KL faces rearward and forms a bottom section of the air guide surface 153. The concave arc segment LM extends forward from the top end of the vertical segment KL and gradually slopes upward. The top convex arc section MN forms a top section of the air guide surface 153, and the rear end of the top convex arc section MN is smoothly connected with the upper end of the concave arc section LM. By providing the air guide surface 153 in such a special shape, the air guide surface 153 can have an enhanced upward air guide capability, and the airflow loss can be reduced. Fillet transition can be adopted between vertical section KL and the interior concave arc section LM to make the transition more gentle.

Fig. 6 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 1 operating in a down-blowing mode; fig. 7 is a schematic view illustrating the wall-mounted air conditioning indoor unit of fig. 1 operating in a maximum outlet mode.

In some embodiments, as shown in fig. 1 to 7, 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 disposed at the front air outlet 121 for opening or shielding the front air outlet 121 and guiding an air outlet direction of the front air outlet 121. The lower air guiding plate 60 is rotatably disposed at the lower outlet 122 for opening or shielding the lower outlet 122 and guiding the air outlet direction of the lower outlet 122. 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. 1. 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. 5, 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. 6. 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. 7.

Preferably, the pivot axis x of the front air deflector 50 is located at the top end of the front air deflector and is close to the upper side of the front air outlet 121, so that when the air conditioner is in a blow molding mode, the front air deflector 50 can be rotated to be completely far away from the front of the front air outlet 121, the air flow is not blocked from flowing upwards, and the upwards-flowing guiding function of the partition 15 is fully exerted, as shown in fig. 5. If the forward end of the lower air guiding plate 60 is a first end when the lower air guiding plate 60 is in the horizontal state and the backward end is a second end, the pivot axis y of the lower air guiding plate 60 is preferably close to the first end, so that when the lower air guiding plate 60 rotates to the vertical state, the second end is abutted against the front air duct wall 200, and most of the air flow is blocked by the lower air guiding plate 60 at the back side, and is better guided by the lower air guiding plate 60 to blow downwards, as shown in fig. 6.

Fig. 8 is a schematic structural view of the air duct 20 according to an embodiment of the present invention.

As shown in fig. 8, in some embodiments, the section of the front duct wall 200 adjacent to the outlet end thereof is curved convexly downward, and the 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 front air outlet 121 is blown out towards the front upper side (for example, in a refrigeration mode), the air flow will gradually rise 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, 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 a '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 lower air outlet 122 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. 8, 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 connection 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 length direction of the housing 10, i.e., the direction perpendicular to the paper surface in fig. 8. 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 round corner transition to reduce the resistance loss of the airflow, make the airflow turn more smoothly and be beneficial to enhancing 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 fact that the turning angle is too large is avoided.

As shown in fig. 8, 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 projecting forward, and the lower end thereof constitutes the outlet end of the rear air duct wall 100 and a tangent line C2 extends toward the front lower side. The axes of the arcs of the main body segment AB and the forward convex arc segment BC are both parallel to the length direction of the housing 10.

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 (10)

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

a housing defining a front air outlet opening forward and a lower air outlet opening downward; and

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-rear direction, and outlet ends of the front air duct wall and the rear air duct wall are respectively connected with the top edge of the front air outlet and the rear edge of the lower air outlet so as to guide airflow in the shell to the front air outlet and the lower air outlet;

the shell comprises a partition part which is positioned between the front air outlet and the lower air outlet so as to separate the front air outlet from the lower air outlet, the surfaces of the partition part facing the inner side of the shell and the indoor environment are respectively an air guide surface and a non-air guide surface, and the partition part is provided with an air flow channel penetrating through the air guide surface and the non-air guide surface so as to lead out partial air flow in the shell.

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

the partition part is of a hollow structure; and is

The air guide surface is provided with a plurality of air inlet micropores communicated with the inner space of the partition part, the non-air guide surface is provided with a plurality of air outlet micropores communicated with the inner space of the partition part, and the air inlet micropores, the inner space of the partition part and the air outlet micropores jointly form the airflow channel.

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

the partition part is of a solid structure and is provided with a plurality of ventilation micropores penetrating through the air guide surface and the non-air guide surface, and the ventilation micropores form the airflow channel.

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

the axes of a plurality of the ventilation micro-holes are gradually inclined downwards from back to front.

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

the front air guide plate is rotatably arranged at the front air outlet, and a pivot shaft of the front air guide plate is positioned at the top end of the front air guide plate and is close to the upper edge of the front air outlet; and

the lower air deflector is rotatably arranged at the lower air outlet, the forward end of the lower air deflector in a horizontal state is a first end, the backward end of the lower air deflector is a second end, and the pivoting shaft of the lower air deflector is close to the first end, so that the second end is abutted against the front air duct wall when the lower air deflector rotates to a vertical state.

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

the wind guide surface comprises an inner concave arc section which extends upwards in an inclined mode from back to front.

7. The wall-mounted air conditioner indoor unit of claim 6, wherein the air guide surface comprises, in order from rear to front:

a vertical section facing rearward and constituting a bottom section of the air guide surface;

the concave arc-shaped section extends forwards from the top end of the vertical section and gradually inclines upwards; and

the top convex arc section forms the top section of the air guide surface, and the rear end of the top convex arc section is smoothly connected with the upper end of the concave arc section.

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

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 provided with

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.

9. The wall mounted air conditioning indoor unit of claim 8, wherein the front air 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.

10. The wall mounted air conditioning indoor unit of claim 8, wherein the rear air 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.

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