CN220506996U - Wall-mounted air conditioner indoor unit - Google Patents

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a casing, wherein the casing comprises a framework and a housing covered on one side of the framework, the framework comprises a first air channel wall and a second air channel wall, the first air channel wall and the second air channel wall are used for defining a through-flow air channel, and the outlet end of the second air channel wall is provided with a notch; the cover shell is provided with an air outlet corresponding to the outlet end of the through-flow air channel, the cover shell is provided with a third air channel wall extending from one side of the air outlet towards the inside of the cover shell, and the tail end of the third air channel wall, which is far away from the air outlet, is lapped at the notch so that the surface of the third air channel wall is level with the surface of the second air channel wall; the overlap surface of the third air duct wall contacted with the surface of the notch is provided with a plurality of reinforcing ribs. The utility model enables better alignment of the air duct wall surface of the skeleton with the air duct wall surface of the housing.

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

The casing of the wall-mounted air conditioner indoor unit consists of a framework, a casing and a panel, wherein the casing is arranged at the front part of the framework, and the casing and the panel are fastened and assembled. The panel cover is buckled on the outer side of the cover shell, the panel cover and the cover are fastened and assembled in a screw or clamping mode, and the panel forms the front appearance and the left side appearance and the right side appearance of the wall-mounted air conditioner indoor unit. The top of the housing is provided with an air inlet grille, and the lower part of the front side of the housing is provided with an air outlet.

The framework and the housing define part of the air duct wall, and after the framework and the housing are assembled, the air duct walls of the framework and the housing are connected and aligned to define the through-flow air duct. However, in the actual production process, the air duct wall surface of the skeleton and the air duct wall surface of the housing are sometimes aligned in a non-way, which affects the air guiding performance of the through-flow air duct.

Disclosure of Invention

The present utility model aims to overcome at least one of the drawbacks of the prior art and to provide a wall-mounted air conditioning indoor unit that enables a better alignment of the air duct wall surface of the skeleton with the air duct wall surface of the casing.

A further object of the present utility model is to reduce the occurrence of stress concentrations due to the provision of reinforcing ribs, which adversely affect the flatness of the appearance of the third duct wall.

In particular, the present utility model provides a wall-mounted air conditioner indoor unit comprising a cabinet including a frame and a casing covering one side of the frame, wherein

The framework comprises a first air channel wall and a second air channel wall, the first air channel wall and the second air channel wall are used for defining a through-flow air channel, and the outlet end of the second air channel wall is provided with a notch;

the housing is provided with an air outlet corresponding to the outlet end of the through-flow air duct, the housing is provided with a third air duct wall extending from one side of the air outlet towards the interior of the housing, and the tail end of the third air duct wall, which is far away from the air outlet, is lapped at the notch so that the surface of the third air duct wall is level with the surface of the second air duct wall; and is also provided with

And a plurality of reinforcing ribs are formed on the lap joint surface of the third air duct wall, which is contacted with the surface of the notch.

Optionally, each of the reinforcing ribs has a strip shape, a first end thereof is located at the end of the third air duct wall, and a second end thereof is closer to the air outlet than the first end.

Optionally, the first section of each reinforcing rib near the first end is attached to the surface of the notch, and the second section near the second end is gradually thinned towards the air outlet so as to smoothly transition with the outer surface of the third air duct wall.

Optionally, the second section of each of the reinforcing ribs includes an outer convex section connecting the first section and an inner concave section connecting the outer surface of the third duct wall.

Optionally, the width of the reinforcing bars is constant or gradually decreases in a direction from the first end to the second end.

Optionally, the notch includes a first plane and a second plane that grip an obtuse angle, the end face of the third air duct wall is attached to the first plane, and each of the reinforcing ribs is attached to the second plane.

Optionally, the through-flow air duct is in a strip shape extending along the transverse direction of the casing;

the reinforcing ribs are arranged at intervals along the length direction of the through-flow air duct.

Optionally, a second duct wall is located behind the first duct wall;

the air outlet is positioned at the bottom of the front side of the housing, the framework further comprises a bottom wall forming the appearance of the bottom of the housing, and the front end of the bottom wall is bent upwards and backwards to form the third air duct wall.

Optionally, the end of the second air duct wall is bent towards the outer side of the through-flow air duct to form a bent wall, and the bent wall extends to the bottom wall to receive the support of the bottom wall.

Optionally, the second air duct wall is provided with at least one installation cavity recessed inwards for installing the swing blade of the wall-mounted air conditioner indoor unit;

one side surface of the folded wall forms an inner wall of each mounting cavity, and a plurality of ribs are formed on the side surface.

In the wall-mounted air conditioner indoor unit, the shell comprises a framework and a cover shell covered on one side of the framework. The framework includes a first duct wall and a second duct wall for defining a through-flow duct. The cover shell is provided with an air outlet corresponding to the outlet end of the through-flow air duct, the cover shell is provided with a third air duct wall extending from one side of the air outlet towards the inside of the cover shell, and the tail end of the third air duct wall, which is far away from the air outlet, is lapped at the notch so that the third air duct wall and the second air duct wall form a connected relationship, or the third air duct wall forms an 'extension section' of the second air duct wall and is used for guiding air flow to the air outlet in a relay manner.

In the wall-mounted air conditioner indoor unit, the joint surface of the third air duct wall, which is contacted with the surface of the notch, is provided with the plurality of reinforcing ribs, so that the strength of the edge of the third air duct wall can be enhanced, the deformation of the edge of the third air duct wall is reduced, and the surface of the third air duct wall and the surface of the second air duct wall can be better aligned and can be kept in an aligned state for a longer time.

Further, in the wall-mounted air conditioner indoor unit of the utility model, the shape of the reinforcing ribs is specially designed, and the reinforcing ribs comprise the first section, close to the first end, of each reinforcing rib is attached to the surface of the notch, and the second section, close to the second end, of each reinforcing rib is gradually thinned towards the direction of the air outlet so as to smoothly transition with the outer surface of the wall of the third air duct. And the second section of each reinforcing rib comprises an outer convex section connected with the first section and an inner concave section connected with the outer surface of the third air duct wall. The special design of the utility model for the shape of the reinforcing rib further strengthens the structural strength of the third air duct wall on one hand and reduces the stress concentration at the reinforcing rib on the other hand.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of some embodiments of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

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

FIG. 2 is a schematic view of the housing and skeleton of the wall-mounted air conditioner indoor unit of FIG. 1;

FIG. 3 is an exploded view of the enclosure and framework of FIG. 2;

FIG. 4 is a schematic cross-sectional enlarged view of the enclosure and framework shown in FIG. 2;

FIG. 5 is an enlarged view at M of FIG. 4;

FIG. 6 is another schematic view of the housing of FIG. 3;

FIG. 7 is an enlarged view at N of FIG. 6;

fig. 8 is another schematic view of the skeleton of fig. 6 from another perspective.

Detailed Description

A wall-mounted air conditioner indoor unit according to an embodiment of the present utility model will be described with reference to fig. 1 to 8.

In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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 implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include at least one, i.e. one or more, of the feature, either explicitly or implicitly.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween.

That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the embodiments of the utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

The embodiment of the utility model provides a wall-mounted air conditioner indoor unit.

The wall-mounted air conditioner indoor unit is an indoor part of a split wall-mounted air conditioner or an indoor tail end machine of a central air conditioner and is used for adjusting indoor air, wherein the indoor air adjusting comprises adjusting the temperature, humidity and air quality of the air, humidifying and dehumidifying the indoor air, introducing fresh air and the like. The air conditioner may be constituted by an evaporator, a condenser, a compressor, a throttle device and other necessary elements to form a vapor compression refrigeration cycle system to output cool/hot air through a fan to achieve cooling and heating of an indoor environment. The air conditioner realizes fresh air change regulation on the indoor environment by conveying fresh air flow to the indoor environment. The air conditioner can realize the purification, humidification and other regulation functions of the indoor environment by conveying other airflows such as purified airflows, humidified airflows and the like to the indoor environment.

Fig. 1 is a schematic structural view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present utility model; fig. 2 is a schematic structural view of a casing 100 and a skeleton 300 in the indoor unit of the wall-mounted air conditioner shown in fig. 1; fig. 3 is an exploded view of the enclosure 100 and the framework 300 shown in fig. 2.

As shown in fig. 1 to 3, the wall-mounted air conditioner indoor unit according to the embodiment of the present utility model may generally include a cabinet 10. The enclosure 10 may generally include a framework 300, a housing 100. In addition, the cabinet 10 may further include a panel 200. The skeleton 300, the housing 100, and the panel housing 10 are integral parts.

The casing 100 is covered on one side of the frame 300, and the casing 100 and the frame 300 define an accommodating space of the casing 10 to accommodate indoor unit components such as a fan, an indoor side heat exchanger, and the like. For example, as shown in fig. 2 and 3, the cover 100 may be covered on the front side of the frame 300. The two are fastened and assembled, in particular by screw assembly or by snap connection. The panel 200 is fastened to the outer side of the casing 100, and the panel 200 is fastened and assembled by screws or a fastening manner, and may specifically include a front panel and left and right end panels. The top of the housing 100 is an air inlet grille, which constitutes an air inlet 11 for introducing indoor air. An air outlet 12 is provided at a lower portion of the front side of the housing 100 for blowing out a conditioning air flow such as cold air/hot air. The front panel is used for forming the front appearance of the wall-mounted air conditioner indoor unit, and the two end panels are used for forming the left side appearance and the right side appearance of the wall-mounted air conditioner indoor unit.

The housing 100 and the backbone 300 may be non-metallic pieces, such as plastic pieces. Specifically, the housing 100 may be integrally injection molded as a single piece, and the backbone 300 integrally injection molded as a single piece for ease of processing.

Fig. 4 is a schematic cross-sectional enlarged view of the enclosure 100 and the framework 300 shown in fig. 2; fig. 5 is an enlarged view at M of fig. 4.

As shown in fig. 4 and 5, the skeleton 300 includes a first duct wall 310 and a second duct wall 320 that define a through-flow duct 301. The through-flow air duct 301 refers to an air duct matched to a through-flow fan. Of course, the framework 300 also includes other duct walls that cooperate with the first duct wall 310 and the second duct wall 320 to define the through-flow duct 301. For example, as shown in fig. 4, the second duct wall 320 is located behind the first duct wall 310, and the skeleton 300 further includes two lateral end walls arranged along a lateral direction (x-axis direction) of the casing 10, and the four duct walls together define the through-flow duct 301.

In the embodiment of the present utility model, as shown in fig. 5, the outlet end of the second air duct wall 320 has a notch 325. The casing 100 is provided with an air outlet 12 corresponding to the outlet end of the through-flow duct 301, and the air outlet 12 is used for blowing the air flow in the casing 10 to the indoor environment.

The housing 100 has a third duct wall 111 extending from one side of the air outlet 12 towards the interior of the housing 100, the end of the third duct wall 111 remote from the air outlet 12 overlapping at the notch 325 such that its surface 327 is flush with the surface 1116 of the second duct wall 320 such that the third duct wall 111 and the second duct wall 320 are in abutting relationship or such that the third duct wall 111 forms an "extension" of the second duct wall 320 for directing air flow in a relay manner towards the air outlet 12. The third duct wall 111 has a plurality of ribs 1112 formed on the overlapping surface thereof contacting the surface of the notch 325 (see fig. 5. Fig. 5 shows one rib 1112 with dcba and a dotted auxiliary coil).

The inventors of the present utility model have found that overlapping the third duct wall 111 over the second duct wall 320 often suffers from the disadvantage that the surfaces (referred to as surface 1116 of the third duct wall 111 and surface 327 of the second duct wall 320) are not flush. This will cause turbulence or other adverse phenomena in the air flow at this point, with excessive drag losses and possibly additional noise.

The inventors have further found that the reason for causing the third air duct wall 111 to be non-flush with the surface of the second air duct wall 320 is mainly that the second air duct wall 320 and the third air duct wall 111 are long in length, and uneven cooling occurs during injection molding, resulting in deformation, thereby making it difficult to perfectly attach the second air duct wall 320 and the third air duct wall 111.

Therefore, in the wall-mounted indoor unit of the wall-mounted air conditioner according to the embodiment of the present utility model, the joint surface of the third air duct wall 111 contacting the surface (BC) of the notch 325 is formed with the plurality of ribs 1112, so that the strength of the edge of the third air duct wall 111 can be enhanced, the deformation thereof can be reduced, and the surface 1116 of the third air duct wall 111 and the surface 327 of the second air duct wall 320 can be better aligned and maintained in the aligned state for a longer time, thereby avoiding the occurrence of vortex or other adverse phenomena of the airflow therein, and avoiding the excessive resistance loss and possible additional noise.

Fig. 6 is a schematic view of the housing 100 of fig. 3 from another view (rear view).

In some embodiments of the present utility model, as shown in fig. 6, the through-flow air duct 301 may be formed as an elongated shape extending in the lateral direction (parallel to the x-axis direction indicated in the figure) of the casing 10. The plurality of reinforcing ribs 1112 are arranged at intervals along the longitudinal direction of the through-flow duct 301. Specifically, the casing 100, the frame 300, and the entire casing 10 are elongated and extend horizontally and laterally, and the longitudinal directions of the casing 100 and the frame 300 constitute the lateral direction of the casing 10.

Since the second air duct wall 320 and the third air duct wall 111 are long in length, a plurality of reinforcing ribs 1112 are arranged in the length direction of the third air duct wall 111 so as to structurally reinforce everywhere in the length direction of the third air duct wall 111 so that the deformation thereof as a whole is smaller.

Fig. 7 is an enlarged view at N of fig. 6.

In some embodiments of the utility model, each stiffener 1112 is elongated as shown in fig. 6 and 7. The elongated reinforcing bar 1112 necessarily has a first end c and a second end a in the length direction. The first end c of each stiffener 1112 is located at the end of the third duct wall 111, and the second end a is closer to the air outlet 12 than the first end c. Further, the end face of the first end c of each reinforcing rib 1112 may be made flush with the end face of the third duct wall 111, as shown in fig. 7.

In some embodiments of the present utility model, as shown in fig. 5 and 7, a first section (bc section) of each stiffener 1112 near the first end c may be made to conform to the surface of the notch 325 (i.e., the second plane 3202), and a second section (ab section) near the second end a may be made to taper gradually in the direction of the air outlet 12 to smoothly transition with the outer surface of the third duct wall 111. That is, each of the reinforcing ribs 1112 is made in a wedge-shaped structure, and the second end a thereof constitutes a tip of a wedge shape.

The embodiment of the present utility model provides each of the reinforcing ribs 1112 in such a particular shape as described above, on the one hand, to further strengthen the structural strength of the third duct wall 111, and on the other hand, to reduce stress concentration at the reinforcing ribs 1112.

In some embodiments of the present utility model, as shown in fig. 5, a first section (BC section) of each stiffener 1112 near the first end c is fitted to a surface 3202 (BC face) of the notch 325, and a second section (ab section) near the second end a is tapered in the direction of the air outlet 12 (direction from b to a) to smoothly transition with the outer surface of the third duct wall 111. The embodiment of the present utility model provides the reinforcing ribs 1112 in such a particular shape to further strengthen the structural strength of the third duct wall 111 on the one hand and to reduce stress concentration at the reinforcing ribs 1112 on the other hand.

Further, in some embodiments of the present utility model, as shown in fig. 7, the second section (ab section) of each stiffener 1112 includes an outer convex section (bd section) connected to the first section (bc section) and an inner concave section (da section) connected to the outer surface of the third duct wall 111. The embodiment of the present utility model provides the reinforcing ribs 1112 in such a particular shape to further strengthen the structural strength of the third duct wall 111 on the one hand and to reduce stress concentration at the reinforcing ribs 1112 on the other hand.

Further, in some embodiments of the utility model, the width of the stiffener 1112 is constant or gradually decreases in the direction from the first end c to the second end a. The embodiment of the present utility model provides the reinforcing ribs 1112 in such a particular shape to further strengthen the structural strength of the third duct wall 111 on the one hand and to reduce stress concentration at the reinforcing ribs 1112 on the other hand.

In some embodiments of the present utility model, as shown in fig. 5, the notch 325 may include a first plane 3201 (AB plane) and a second plane 3202 (BC plane) that clamp the obtuse angle (< ABC), and the end surface (rc plane) of the third duct wall 111 is attached to the first plane 3201, and each stiffener 1112 is attached to the second plane 3202. And angle ABC is an obtuse angle. Preferably, the angle ABC is less than or equal to 90 degrees and less than or equal to 110 degrees.

The above-described embodiments of the present utility model allow the first plane 3201 and the second plane 3202 to form an obtuse angle rather than a right or acute angle, which reduces stress concentrations and adverse deformations at the notch 325, thereby allowing the surface of the third duct wall 111 to better align with the surface of the second duct wall 320 and remain in alignment longer.

In some embodiments of the utility model, as shown in FIG. 4, the second duct wall 320 may be positioned behind the first duct wall 310. Specifically, the first duct wall 310 may include a volute tongue, and the second duct wall 320 is located behind the first duct wall 310 and is curved with a convex backward curvature. The air outlet 12 is located at the bottom of the front side of the casing 100. The air outlet 12 may be open forward and downward (as shown in fig. 5), or may be open forward or downward. When the air outlet 12 is opened forward and downward, both forward blowing and downward blowing can be achieved.

In the cooling mode, the forward blowing can improve the blowing distance. The density of cold air is higher, and the cold air tends to sink. Therefore, the cold air flows forwards or forwards and upwards under the guidance of the air deflector, and still can subside downwards after reaching the highest point, so that a shower-type refrigeration effect is formed, and the indoor space is filled with the cold air everywhere.

In the heating mode, downward blowing of air enables the hot air to better reach the ground. The density of hot air is smaller and the trend is rising. Therefore, the cold air is blown downwards, so that the cold air can still flow upwards after reaching the ground, and the indoor space is filled with hot air everywhere, thereby forming a carpet-type heating effect.

As shown in fig. 4, the skeleton 300 further includes a bottom wall 110 that is the bottom appearance of the housing 10. That is, the bottom wall 110 of the framework 300 is directly exposed outside, and no additional panel is required on the lower side of the framework 300. This can make the structure of the casing 10 simpler and less costly.

The front end of the bottom wall 110 of the framework 300 is folded back and upward to form the third duct wall 111. That is, the bottom wall 110 and the third duct wall 111 are integrally formed. The design is that the edge of the through-flow air duct 301 and the edge of the air outlet 12 form seamless connection.

In some embodiments of the present utility model, as shown in fig. 5, the end of the second air duct wall 320 is bent towards the outside of the through-flow air duct 301 to form a bent wall 321, and the bent wall 321 extends to the bottom wall 110 to receive the support of the bottom wall 110. Specifically, a snap or screw connection may be employed between the folded wall 321 and the bottom wall 110. In this embodiment, the folded wall 321 is supported by the bottom wall 110, so that the structures of the folded wall 321 and the second air duct wall 320 are more stable, and the deformation in the use process is reduced, thereby avoiding the defect that the surface of the second air duct wall 320 is not flush with the surface of the third air duct wall 111 due to the deformation of the second air duct wall 320.

In some embodiments of the present utility model, as shown in fig. 5, the front end of the first duct wall 310 is aligned with the lower end of the front wall of the housing 100. The lower end of the front wall of the casing 100 constitutes the upper end of the air outlet 12.

Fig. 8 is another schematic view of the skeleton 300 of fig. 6.

In some embodiments of the present utility model, as shown in fig. 8, the second duct wall 320 has at least one mounting cavity 326 recessed inward for mounting a swing blade of a wall-mounted air conditioning indoor unit. One side surface of the folded wall 321 constitutes an inner wall of each of the mounting cavities 326, and the side surface is formed with a plurality of ribs 3115.

Specifically, as shown in fig. 8, the number of the mounting cavities 326 may be plural, for example, two. Pendulum She Yongyu swings the wind left and right. The vanes are typically arranged in groups, each group comprising a plurality of vanes which are linked by a drive mechanism, i.e. the vanes oscillate synchronously about respective axes. The drive mechanism may include a motor, rocker, linkage, or the like. The swing blades are rotatably installed at the frame 300, respectively, and are rotatably connected to different portions of the link in the length direction, respectively. The two ends of the rocker are respectively and rotatably connected with the rotating shaft of the motor and the connecting rod, after the motor is started, the rotating shaft of the motor rotates, the rocker rotates along with the rotating shaft, the connecting rod is driven to reciprocate and translate by the rotating of the rocker, and each swinging blade is driven to swing by the reciprocating and translating of the connecting rod.

In this embodiment, the swing blade group is disposed in the mounting cavity 326 of the second air duct wall, so that only the swing air portion of the swing blade is exposed in the through-flow air duct 301, so as to avoid that other portions of the swing blade group occupy the space of the through-flow air duct 301 and obstruct the normal flow of the air flow.

The surface of the folded wall 321 is formed with a plurality of ribs 3115, and the ribs 3115 may be arranged at intervals in the lateral direction of the cabinet 10. The ribs 3115 serve to enhance the structural strength of the folded wall 321 so that it can have sufficient strength to mount the swing blade group, and can reduce deformation of the second duct wall 320 due to the mounting of the swing blade group, thereby avoiding a defect that the surface of the second duct wall 320 is not flush with the surface of the third duct wall 111 due to the deformation of the second duct wall 320.

In some embodiments of the present utility model, the wall-mounted air conditioner indoor unit further comprises a cross-flow fan, an indoor heat exchanger, a controller, and the like.

The indoor heat exchanger and the throttling device are connected with a compressor, an outdoor heat exchanger and other refrigerating elements arranged in the air conditioner outdoor unit through pipelines to form a vapor compression refrigeration cycle system. The compressor is typically a rolling rotor compressor. The throttling means may comprise a capillary tube, an electronic expansion valve.

For a heat pump air conditioner, the vapor compression refrigeration cycle system further comprises a four-way valve for realizing switching of the air conditioner between a refrigeration mode and a heating mode.

In the cooling mode, the indoor heat exchanger functions as an evaporator. In the heating mode, the indoor heat exchanger functions as a condenser. The cabinet 10 may be provided with an air inlet 11 for introducing indoor air. Under the action of the cross-flow fan, indoor air enters the casing 10 through the air inlet, forms heat exchange airflow after forced convection heat exchange with the indoor heat exchanger, and is guided by the cross-flow air duct 301 to blow from the air outlet 12 to the indoor environment. The housing 10 may be generally elongated in a horizontal and transverse direction, and the air inlet 11 is generally disposed at the top of the housing 10.

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

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (10)

1. The wall-mounted air conditioner indoor unit comprises a casing, wherein the casing comprises a framework and a cover shell covered on one side of the framework,

the framework comprises a first air channel wall and a second air channel wall, the first air channel wall and the second air channel wall are used for defining a through-flow air channel, and the outlet end of the second air channel wall is provided with a notch;

the housing is provided with an air outlet corresponding to the outlet end of the through-flow air duct, the housing is provided with a third air duct wall extending from one side of the air outlet towards the interior of the housing, and the tail end of the third air duct wall, which is far away from the air outlet, is lapped at the notch so that the surface of the third air duct wall is level with the surface of the second air duct wall; and is also provided with

And a plurality of reinforcing ribs are formed on the lap joint surface of the third air duct wall, which is contacted with the surface of the notch.

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

each reinforcing rib is in a strip shape, the first end of each reinforcing rib is positioned at the tail end of the third air duct wall, and the second end of each reinforcing rib is closer to the air outlet than the first end of each reinforcing rib.

3. The wall-mounted air conditioner indoor unit of claim 2, wherein,

the first section of each reinforcing rib, which is close to the first end, is attached to the surface of the notch, and the second section of each reinforcing rib, which is close to the second end, is gradually thinned towards the direction of the air outlet so as to smoothly transition with the outer surface of the third air duct wall.

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

the second section of each reinforcing rib comprises an outer convex section connected with the first section and an inner concave section connected with the outer surface of the third air duct wall.

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

the width of the reinforcing ribs is constant or gradually decreases in a direction from the first end to the second end.

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

the notch comprises a first plane and a second plane which are clamped at an obtuse angle, the end face of the tail end of the third air duct wall is attached to the first plane, and each reinforcing rib is attached to the second plane.

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

the through-flow air duct is in a strip shape extending along the transverse direction of the machine shell;

the reinforcing ribs are arranged at intervals along the length direction of the through-flow air duct.

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

the second air channel wall is positioned behind the first air channel wall;

the air outlet is positioned at the bottom of the front side of the housing, the framework further comprises a bottom wall forming the appearance of the bottom of the housing, and the front end of the bottom wall is bent upwards and backwards to form the third air duct wall.

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

the tail end of the second air duct wall is bent towards the outer side of the through-flow air duct to form a bent wall, and the bent wall extends to the bottom wall to be supported by the bottom wall.

10. The wall-mounted air conditioner indoor unit of claim 9, wherein,

the second air duct wall is provided with at least one installation cavity recessed inwards for installing the swing blades of the wall-mounted air conditioner indoor unit;

one side surface of the folded wall forms an inner wall of each mounting cavity, and a plurality of ribs are formed on the side surface.