CN115682147A

CN115682147A - Wall-mounted air conditioner indoor unit

Info

Publication number: CN115682147A
Application number: CN202110857847.1A
Authority: CN
Inventors: 鲁镇语; 王晓刚; 李英舒; 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: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-02-03
Also published as: WO2023005328A1

Abstract

The invention provides a wall-mounted air conditioner indoor unit, which comprises a shell and a flow dividing piece. The casing comprises a separation strip, a volute tongue and a volute, wherein the volute tongue and the volute are arranged in front and back, the separation strip is located below the front end of the volute tongue and in front of the lower end of the volute so as to jointly limit an air channel with the volute tongue and the volute, the separation strip and the front end of the volute tongue limit a first forward air supply opening, and the separation strip and the lower end of the volute limit a second downward air supply opening. The flow dividing piece is arranged on the front side of the first air supply outlet so that the air outlet flow of the first air supply outlet blows to the flow dividing piece and is divergently blown to the indoor environment towards the edge of the flow dividing piece under the guidance of the rear surface of the flow dividing piece; and the rear side of the dividing strip is provided with an upward raising surface which is gradually inclined upwards from the rear to the front so as to guide the airflow towards the upper area of the rear surface of the splitter. The wall-mounted air conditioner indoor unit has the advantages of uniformly dispersed air supply and capability of solving the problem of refrigeration and people blowing.

Description

Wall-mounted air conditioner indoor unit

Technical Field

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

Background

The existing wall-mounted air conditioner indoor unit is generally provided with a strip-shaped air outlet at the lower part of the front side of a casing, the air outlet faces to the front lower part, and an air deflector is arranged at the air outlet to guide the air supply direction up and down.

On this basis, some prior art have carried out a lot of improvements to the air-out structure, nevertheless owing to receive the restraint of air outlet orientation itself, the air supply direction of air conditioner, air supply scope and air supply distance still receive very big restriction, and cold wind blows people's problem when especially refrigerating is difficult to solve, influences user experience.

Disclosure of Invention

An object of the present invention is to overcome the above problems or to solve at least part of the problems and to provide a wall-mounted air conditioner indoor unit in which the supply air is uniformly dispersed and the problem of cooling air blowing can be solved.

The invention further aims to increase the flow of the upstream branch of the splitter appropriately so as to increase the air quantity of the remote air supply.

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

the separation strip is positioned below the front end of the volute tongue and in front of the lower end of the volute so as to define an air duct together with the volute tongue and the volute, the separation strip and the front end of the volute tongue define a first forward air supply opening, and the separation strip and the lower end of the volute define a second downward air supply opening;

the flow divider is arranged in front of the first air supply outlet so that the air flow discharged from the first air supply outlet is blown to the flow divider and is divergently blown to the indoor environment towards the edge of the flow divider under the guidance of the rear surface of the flow divider; and is

The rear side of the dividing strip has an upward rising surface gradually inclined upward from rear to front to guide the airflow toward an upper region of the rear surface of the flow divider.

Optionally, the front side of the dividing strip has a tapered face that slopes gradually downward from back to front.

Optionally, the separator strip comprises:

a top surface;

the gradually expanding surface extends from the front end of the top surface to the front lower part;

the front end surface vertically extends downwards from the lower end of the diverging surface;

the upper raising surface extends from the rear end of the top surface to the rear lower part;

the rear end face extends vertically downwards from the lower end of the upper raising face; and

the front end and the rear end of the bottom surface are respectively connected with the lower end of the front end surface and the lower end of the rear end surface.

Optionally, the gradually expanding surface and the rising surface are both arc surfaces which are concave and the axis of which extends along the length of the casing.

Optionally, a section of the volute tongue, which is connected with the first air supply outlet, is a divergent air outlet section which is inclined upwards gradually from back to front.

Optionally, the volute tongue comprises, in order from the inlet end to the outlet end thereof:

the air inlet section extends from the inlet end to the rear lower part;

the middle section extends from the tail end of the air inlet section to the front lower part; and

and the air outlet section extends from the tail end of the middle section to the front upper side.

Optionally, the flow divider is configured to be translated back and forth to adjust its distance from the first supply outlet; and the air outlet section is configured to be movable to a position where the rear surface of the air outlet section is attached to the gradually-expanding surface so as to close the first air supply outlet.

Optionally, an air deflector is arranged at the second air supply opening; and is

The upward surface of the air deflector is concave and curved when the air deflector is in a closed state, so that the air deflector is in an open state and guides airflow to the lower surface of the separation strip.

Optionally, at least the surface of the flow dividing member facing the first supply outlet is convexly curved to facilitate guiding the airflow towards the edge thereof.

Optionally, the surfaces of the two sides of the flow dividing element facing the first air supply outlet and facing away from the first air supply outlet are convex curved surfaces, and the joint of the two convex curved surfaces form two top ends, so that the cross-sectional outline of the flow dividing element forms an olive shape; and is

The outer convex curved surface of the flow dividing piece facing the first air supply outlet is formed by connecting two sections of arc surfaces, and the outer convex curved surface back to the first air supply outlet is a section of arc surface.

In the wall-mounted air conditioner indoor unit, the first air supply outlet is opened forwards, and the second air supply outlet is opened downwards, so that the whole air supply angle range of the air conditioner is larger. First supply-air outlet front side is provided with the reposition of redundant personnel piece, can guide the air-out air current to blow to indoor environment towards the edge divergence of reposition of redundant personnel piece, makes the air-out air current disperse more, and diffusion range is bigger to make indoor refrigeration/heating speed faster, indoor temperature variation everywhere is more even, and the difference in temperature is littleer. The air outlet flow can not blow human body forcibly after being dispersed and blown out, and is closer to natural wind, so that people feel more comfortable. The air flow (upper flow branch) flowing upwards along the flow dividing piece flows upwards for long-distance air supply, the air flow (lower flow branch) flowing downwards along the flow dividing piece flows downwards for short-distance air supply, and the air supply range is enlarged by matching the air flow (lower flow branch) and the air flow. Moreover, the rear side of the separation strip is provided with an upward-rising surface which gradually inclines upwards from back to front so as to guide airflow to the upper area of the rear surface of the splitter, so that the flow of an upward branch of the splitter is increased, and the air volume of long-distance air supply is larger.

Furthermore, in the wall-mounted air conditioner indoor unit, the surface of the flow dividing piece facing the first air supply outlet is a convex curved surface. The air outlet airflow impacts the convex curved surface and then diffuses towards the edge along the convex curved surface, so that the airflow steering angle is smaller, the airflow steering is more moderate, and the airflow loss and the noise are smaller.

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

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

FIG. 3 is an enlarged schematic view of the separator bar of FIG. 2;

fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when a first supply port is opened by a flow divider;

fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a down-blowing mode of operation;

fig. 6 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 operating in a maximum blowing mode;

fig. 7 is a schematic sectional view of a wall-mounted type air conditioning indoor unit according to another embodiment of the present invention;

FIG. 8 is an enlarged schematic view of the parting strip of FIG. 7;

fig. 9 is a schematic view of the drive mechanism of the diverter.

Detailed Description

A wall-mounted type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 9. Where the 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 invention. 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 explicitly specified 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," "coupled," and the like are to be construed broadly and encompass, for example, both fixed and removable connection or integration; 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 invention 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 view illustrating a structure of a wall-mounted type air conditioner indoor unit according to an embodiment of the present invention; fig. 2 is an enlarged schematic cross-sectional view of the wall-mounted air conditioning indoor unit shown in fig. 1; FIG. 3 is an enlarged schematic view of the separator bar of FIG. 2; fig. 4 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 when the flow divider opens the first supply port.

As shown in fig. 1 to 4, a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention may generally include a cabinet 10 and a flow divider 30.

The casing 10 comprises a framework for forming the basic frame of the indoor unit and body components such as a volute and a volute tongue for defining an air outlet channel, and is not a pure air conditioning casing. Specifically, the casing 10 includes, in addition to the elongated frame portion, a partition bar 23, and a volute tongue 21 and a volute 22 arranged in front and rear. The division bar 23 is located below the front end of the volute tongue 21 and in front of the lower end of the volute 23 to define the air passage 20 together with the volute tongue 21 and the volute 22. The air duct 20 is a through-flow air duct. The division bar 23 and the front end of the volute tongue 21 define a first air supply opening 11 facing forwards, and the division bar 23 and the lower end of the volute casing 22 define a second air supply opening 12 facing downwards.

As shown in fig. 1, the casing 10 may be an elongated shape extending in a horizontal direction, and has a substantially quadrangular cross section. The cabinet 10 may include a top wall, a front wall, a rear wall and a bottom wall and two transverse end walls, with the rear wall hanging against an indoor wall. The lateral or so-called longitudinal direction of the casing 10 is indicated by x in the figure. The first supply outlet 11, the second supply outlet 12, the separating strip 23, the volute tongue 21 and the volute 22 may be all long strips with the length direction parallel to the length direction x of the casing 10.

The first air blowing port 11 and the second air blowing port 12 are used for blowing an air flow in the cabinet 10 into the room to condition the indoor air. The air flow can be cold air produced by the wall-mounted air conditioner indoor unit in a refrigeration mode, hot air produced in a heating mode, or fresh air introduced in a fresh air mode, and the like.

The wall-mounted air conditioner indoor unit may be an indoor unit of an air conditioner that performs cooling/heating through a vapor compression refrigeration cycle system, and further includes a heat exchanger 40 and a cross-flow fan 50. The heat exchanger 40 is disposed in the casing 10, and is configured to exchange heat with an air flow flowing through the casing to form a heat exchange air flow, i.e., a cold air or a hot air, which may be a three-stage fin heat exchanger. The cross flow fan 50 is disposed in the casing 10 and located at an inlet of the air duct 20, and is configured to cause indoor air to enter the casing 10 through the air inlet 13 at the top of the casing 10, so that the indoor air and the heat exchanger 40 complete heat exchange to form heat exchange air flow, then cause the heat exchange air to flow through the air duct 20 to the first air supply outlet 11 and the second air supply outlet 12, and finally blow the heat exchange air flow into the room through the first air supply outlet 11 and the second air supply outlet 12.

As shown in fig. 4, the flow divider 30 is disposed in front of the first air blowing opening 11, so that the air flow from the first air blowing opening 11 is blown toward the flow divider 30, and then is divergently blown toward the edge of the flow divider 30 toward the indoor environment under the guidance of the rear surface of the flow divider 30. So, make the air-out air current disperse more, the diffusion scope is bigger for indoor refrigeration/heating speed is faster, and indoor everywhere temperature variation is more even, and the difference in temperature is littleer. The air outlet flow can not blow human body forcibly after being dispersed and blown out, and is closer to natural wind, so that people feel more comfortable. Specifically, as shown in fig. 4, the splitter 30 may be a rod parallel to the length direction of the casing 10, and the outlet airflow is guided by the rear surface of the splitter 30 to flow upward and downward respectively. Wherein, the air current (the branch of upwelling) that upwards flows along reposition of redundant personnel piece 30 back surface rises and flows for long distance air supply, and the air current (the branch of downwelling) that flows down along reposition of redundant personnel piece 30 back surface sinks and flows for closely supplying air, and two way air supplies cooperate, make air supply range expand.

As shown in fig. 3 and 4, the rear side of the dividing strip 23 has an upper raised surface 233 which is gradually inclined upward from rear to front to guide the airflow toward the upper region of the rear surface of the flow divider 30. The flow of the branch above the splitter 30 is increased, so that the air volume of the remote air supply is larger, and the adverse effect of the splitter 30 on the remote air supply is compensated.

The existing wall-mounted air conditioner indoor unit can better increase the air supply distance or enhance the direction guidance of the air outlet flow by more improving the direction, so that the air outlet flow is blown to a set area to achieve the aim of avoiding human bodies. The idea is creatively changed in the embodiment, the air outlet airflow is just blown out of the first air supply opening 11, so that the air outlet airflow is diffused towards a plurality of directions (at least 2 directions), and the forward direct blowing of powerful airflow is avoided, so that the human body can be avoided, the cold/heat diffusion range is wider, and the indoor temperature difference is reduced. In addition, in the embodiment, the flow divider 30 replaces a conventional air deflector, and by dividing the flow, the flow velocity of the air flow is reduced, thereby avoiding that the air deflector and the surface of the casing 10 are not sufficiently cooled due to too high flow velocity, and the condensation occurs due to uneven temperature distribution. In addition, the shunt member 30 may be surface treated to increase the hydrophobic function of the surface and further prevent the surface from generating condensation.

In some embodiments, as shown in fig. 3 and 4, the front side of the division bar 23 may be provided with a diverging surface 232 that gradually slopes downward from the rear to the front. The tapered surface 232 can better direct the flow of the downstream branch obliquely downward so that it can be blown out more underground. In addition, the section where the volute tongue 21 is connected with the first air supply outlet 11 is a gradually expanding air outlet section (sa) which gradually inclines upwards from back to front, so that the airflow of the upstream branch is better guided upwards obliquely to be better blown upwards, and the air flow blowing distance of the upstream branch is longer.

Figure 3 illustrates an alternative shape of the separator strip. As shown in fig. 3, the separator bar 23 specifically includes a top surface 231, a tapered surface 232, a front end surface 234, an elevated surface 233, a rear end surface 235, and a bottom surface 236. The top surface 231 faces upward and forms the top of the dividing strip 23. The tapered surface 232 extends forward and downward from the front end of the top surface 231. The front end surface 234 extends vertically downward from the lower end of the diverging surface 232 to constitute the front appearance of the division bar 23. The raised surface 233 extends downward and rearward from the rear end of the top surface 231. The rear end surface 235 extends vertically downward from the lower end of the raised surface 233 to define the second supply outlet 12 together with the scroll casing 22. The front and rear ends of the bottom surface 236 are connected to the lower end of the front surface 234 and the lower end of the rear surface 236, respectively. The top surface 231, the diverging surface 232, the front surface 234, the rising surface 233, the rear surface 235 and the bottom surface 236 together define the entire circumference of the division bar 23, and both ends of the division bar 23 in the length direction are connected to the rest of the cabinet 10. In order to smoothly guide the airflow and facilitate the design and processing, the diverging surface 232 and the rising surface 233 may be both arc surfaces that are concave and have axes extending in the length direction of the casing 10. Fig. 7 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention, and fig. 8 is a schematic enlarged view of a division bar of fig. 7.

The shape of the division bar 23 in this embodiment is somewhat modified from that of the division bar of fig. 3 in that the arc length of the diverging surface 232 is shorter than that of the raised surface 233. In the embodiment shown in fig. 1-6, the arc length of the tapered surface 232 is made larger than the arc length of the raised surface 233. The longer the arc length of the rising surface 233 is, the stronger the guiding effect on the air flow is, so that the air quantity of the rising air flow is larger. Therefore, the specific size of the division bar 23 can be adjusted as needed in order to adjust the amount of the rising airflow.

Fig. 2 illustrates an alternative structure of the volute tongue, and as shown in fig. 2, the volute tongue 21 sequentially includes an air inlet section (kc), a middle section (cs) and an air outlet section (sa) from the inlet end to the outlet end thereof. Wherein the air inlet section (kc) extends from the inlet end (k) to the rear lower side. The middle section (cs) extends forward and downward from the end (c) of the air intake section (kc). The air outlet section (sa) extends forward and upward from the tail end(s) of the middle section (cs). The volute casing 22 is located behind the volute tongue 21 and is of a curved structure with a concave side facing forwards on the whole. All can make each section all with the fillet transition to make the direction of air current turn over more gently, reduce flow loss.

In some embodiments, referring to FIGS. 2 and 4, the splitter 30 can be configured to translate back and forth to adjust its distance from the first supply opening 11, and thus the volume of air in the first supply opening 11. It will be appreciated that the closer the splitter 30 is to the first supply opening 11, the less the flow of air from the first supply opening 11 is blocked and the greater the diversion of the flow of air by the splitter 30 (which causes the flow to be diverted towards its edge). As the flow divider 30 is farther from the first outlet 11, the outlet air from the first outlet 11 is smoother, and the air volume is larger, but the turning action on the air flow is weaker. Further, the flow divider 30 can be configured to move to a position where the rear surface abuts against the diverging surface 232 and the air outlet section (sa) to close the first air blowing opening 11, as shown in fig. 2. Foreign matters such as dust are prevented from entering the casing 10 through the first blowing port 11. In addition, when the wall-mounted air conditioner indoor unit is in a non-operation state such as power failure or standby state, the flow dividing member 30 is moved to a closed state, the flow dividing member 30 is also inwards embedded into the first air supply outlet 11, and the situation that the appearance of the flow dividing member 30 is completely outside the first air supply outlet 11 is avoided. For example, when the flow dividing member 30 is olive-shaped, and the surface facing the first air blowing opening 11 is the convex curved surface 32, the air outlet section sa and the diverging surface 232 are both concave curved surfaces to match with them.

In some embodiments, as shown in fig. 2 and 4, at least the surface of the splitter 30 facing the first supply outlet 11 may be convexly curved 32 to facilitate directing the airflow towards the edges of the splitter 30. Specifically, if the surface of the flow divider 30 facing the first air blowing opening 11 is a plane, the air flow blown perpendicularly to the surface will turn 90 ° and then spread along the surface to the edge. And this embodiment makes this surface be evagination curved surface, and the air-out air current strikes behind evagination curved surface 32 and then along evagination curved surface 32 to the edge diffusion, and the air current turns to and is less than 90, and in the in-process that turns to, the evagination shape of evagination curved surface 32 makes the direction change ground relatively more mild, air current loss and noise are all littleer.

The two side surfaces (rear surface and front surface) of the flow dividing member 30 facing the first air supply outlet 11 and facing away from the first air supply outlet 11 are convex curved surfaces, namely a convex curved surface 32 and a convex curved surface 31, the joint of the convex curved surface and the convex curved surface forms two top ends A1 and A2, and the two top ends A1 and A2 can be provided with round corners, so that the cross section (the section perpendicular to the x axis) of the flow dividing member 30 is in an olive shape. This configuration of the splitter 30 is relatively compact and easy to manufacture, and also provides a more aesthetically pleasing appearance.

More specifically, the outwardly curved surface 32 of the flow dividing member 30 facing the first supply port 11 may be formed by joining two arcuate surfaces CA1 and CA2, so that the outwardly curved surface 32, particularly the middle point C thereof, is more outwardly convex, thereby enabling the air flow blowing thereto to be more evenly divided to both sides of the point C. The convex curved surface 31 back to the first air supply outlet 11 is a section of arc surface, so that the appearance is beautiful and the manufacture is convenient. The radii R1, R2 and the lengths of the arc surfaces CA1, CA2 at both ends of the convex curved surface 32 can be further made equal, so that the air flows toward the two surfaces tend to be equal. Of course, the cross-sectional profile of the splitter 30 can also be oval or other irregular shapes, and will not be described herein.

In some alternative embodiments, if the first air supply opening and the splitter are circular, the convex curved surface may be a spherical crown, which is not described herein again.

Fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a blow-down mode of operation; fig. 6 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a maximum blowing mode.

As shown in fig. 4 to 6, a wind deflector 60 may be disposed at the second supply outlet 12. The air guide plate 60 guides the direction of the outlet air flow of the second air outlet 12 and opens and closes the second air outlet 12.

The embodiment of the invention at least has the following air supply modes for users to select, and specifically comprises the following steps:

a forward air supply mode: as shown in fig. 4, the flow divider 30 is moved forward to open the first air blowing port 11, and the air guide plate 60 closes the second air blowing port 12 or opens the second air blowing port 12 at a small angle to avoid condensation, so that air is divided and blown forward from the first air blowing port 11. When the air conditioner runs in the cooling mode, air can be supplied according to the air supply mode.

Downward air supply mode: as shown in fig. 5, the control flow divider 30 closes the first air blowing port 11 and opens the second air blowing port 12 by the air deflector 60. The air is blown downward by the second blowing port 12 under the guide of the air guide plate 60. When the air conditioner runs in a heating mode, air can be supplied according to a lower air supply mode, so that the heating speed can be increased.

The maximum air supply mode is as follows: as shown in fig. 6, both the first outlet 11 and the second outlet 12 are opened to simultaneously discharge air so as to maximize the air volume.

In some embodiments, as shown in FIG. 7, the upwardly facing surface 61 of the air deflector 60 in the closed position is concavely curved to direct the air flow toward the lower surface of the dividing strip 23 when the air deflector 60 is in the open position. Therefore, the air flow is blown to the lower surface of the separating strip 23 which is difficult to pass through originally, thereby avoiding the condensation generated in the refrigeration mode. Specifically, the entire air guide plate 60 may be formed in an arc plate shape having an axis parallel to the longitudinal direction of the casing 10.

Fig. 9 is a schematic view of the drive mechanism of the diverter. Fig. 2 to 8 are views illustrating the wind path direction and omitting the driving mechanism, and fig. 9 is a view illustrating the driving mechanism and omitting the air deflectors 61 and 62.

In some embodiments, as shown in fig. 9, the driving mechanism for driving the splitter 30 to translate back and forth is a rack and pinion mechanism, which is installed at the lateral side of the casing 10 so as not to affect the airflow. The driving mechanism includes a rack 71 extending in the forward-backward direction and fixed to the splitter 30, a gear 72 engaged with the rack 71, and a motor 73 for driving the gear 72 to rotate to move the rack 71 forward and backward. The motor 73 may be fixed to the cabinet 10, and the rack 71 may be slidably installed to the cabinet 10 in the front and rear directions. The motor 73 is controllably reversible to enable the splitter 30 to reciprocally translate in the fore-and-aft direction. The motor 73 may be a stepper motor. In addition, a motor may be further provided to drive the splitter 30 to rotate.

Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention 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 invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

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

the volute comprises a casing and a first air supply outlet, wherein the casing comprises a separation strip, a volute tongue and a volute, the volute tongue and the volute are arranged in front and at the back, the separation strip is positioned below the front end of the volute tongue and in front of the lower end of the volute so as to jointly define an air channel with the volute tongue and the volute, the separation strip and the front end of the volute tongue define a first air supply outlet facing forwards, and the separation strip and the lower end of the volute define a second air supply outlet facing downwards;

the flow dividing piece is arranged at the front side of the first air supply outlet, so that the air outlet flow of the first air supply outlet blows to the flow dividing piece, and is divergently blown to the indoor environment towards the edge of the flow dividing piece under the guidance of the rear surface of the flow dividing piece; and is

The rear side of the dividing strip has an upward rising surface which gradually inclines upwards from rear to front so as to guide the airflow towards the upper area of the rear surface of the flow divider.

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

the front side of the division bar has a gradually-expanding surface gradually inclined downwards from back to front.

3. The wall-mounted air conditioning indoor unit of claim 2, wherein the division bar comprises:

a top surface;

the front end surface extends vertically downwards from the lower end of the diverging surface;

the rear end surface vertically extends downwards from the lower end of the upper raising surface; and

and the front end and the rear end of the bottom surface are respectively connected with the lower end of the front end surface and the lower end of the rear end surface.

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

the gradually expanding surface and the rising surface are both concave arc surfaces with axes extending along the length of the casing.

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

the section of the volute tongue connected with the first air supply outlet is a divergent air outlet section which is gradually inclined upwards from back to front.

6. The wall-mounted air conditioning indoor unit of claim 5, wherein the volute tongue comprises, in order from the inlet end to the outlet end thereof:

the air inlet section extends from the inlet end to the rear lower part;

the middle section extends forwards and downwards from the tail end of the air inlet section; and

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

the flow dividing piece is configured to be capable of translating back and forth so as to adjust the distance between the flow dividing piece and the first air supply outlet; and the air outlet section is configured to be movable to a position where the rear surface of the air outlet section is attached to the gradually-expanding surface so as to close the first air supply outlet.

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

an air deflector is arranged at the second air supply opening; and is provided with

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

the surface of the flow divider at least facing the first air supply outlet is a convex curved surface so as to be beneficial to guiding the airflow to the edge of the flow divider.

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

the surfaces of the two sides of the flow dividing piece facing the first air supply outlet and back to the first air supply outlet are convex curved surfaces, and the joint of the two convex curved surfaces and the first air supply outlet forms two top ends, so that the cross section outline of the flow dividing piece forms an olive shape; and is

The outward convex curved surface of the flow dividing piece facing the first air supply outlet is formed by connecting two sections of arc surfaces, and the outward convex curved surface back to the first air supply outlet is a section of arc surface.