CN216131989U

CN216131989U - Wall-mounted air conditioner indoor unit

Info

Publication number: CN216131989U
Application number: CN202121732148.6U
Authority: CN
Inventors: 李英舒; 张丽; 吴丽琴; 王永涛
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-03-25
Anticipated expiration: 2031-07-28

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a casing, wherein 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; and the rear end of the separating strip is formed with a backward wedge part which is configured to split the outlet air flow blown thereto into upper and lower two streams to flow forward from the upper and lower sides of the separating strip, respectively. The wall-mounted air conditioner indoor unit can supply air forwards and downwards, has smaller air outlet resistance and can avoid the generation of condensation at the air supply port.

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 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, the air supply scope and the air supply distance of air conditioner still receive very big restriction, influence user experience.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to overcome or at least partially solve the above problems and to provide a wall-mounted air conditioning indoor unit that can supply air forward and downward and has a smaller air discharge resistance.

Another object of the present invention is to prevent condensation at the air supply opening.

Particularly, the utility model provides a wall-mounted air conditioner indoor unit, which comprises a machine shell, wherein the machine shell 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 define an air channel together 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; and is

The rear end of the separation strip is formed with a backward-facing wedge portion configured to split the outlet airflow blown thereto into upper and lower streams to flow forward from upper and lower sides of the separation strip, respectively.

Optionally, the distance between the volute tongue and the separating strip is gradually reduced along the airflow direction at a position close to the first air supply opening, so as to form a tapered section of the air duct; and is

The wall-mounted air conditioner indoor unit further comprises a flow guide piece which is in a rod shape parallel to the length direction of the first air supply opening, is arranged in the air duct, defines an air outlet gap with the volute tongue and the separating strip respectively, and is used for guiding airflow blowing towards the first air supply opening to the volute tongue and the separating strip so that the airflow gradually converges towards the airflow center and flows out of the first air supply opening under the guidance of the tapered section of the air duct.

Optionally, a rear section of the dividing strip upper surface constitutes an upper surface of the wedge; and is

The rear section of the lower surface of the dividing strip extends from front to rear along a fold, line or arc approaching the upper surface of the dividing strip to the rear end of the upper surface of the dividing strip to form the wedge.

Optionally, the cross-sectional profile of the flow guide member is an olive shape having upper and lower two tips, and front and rear two convex curved shapes, and the upper tip is located at the front upper part of the lower tip, so that the rear surface of the flow guide member faces to the rear upper part and the front surface faces to the front lower part.

Optionally, the section of the volute tongue for defining the air outlet gap is a bent section with a downward concave side, and the bent section surrounds the flow guide above the flow guide; and is

The upper surface of the separation strip is in an inwards concave curved shape which gradually inclines upwards from back to front, and is positioned below the flow guide piece.

Optionally, the volute tongue further comprises:

the inclined section is a straight line shape extending from the concave side of the volute tongue to the rear end of the downward bent section and the rear upper part; and

and the inlet section is bent and extended forwards and upwards from the rear end of the inclined section.

Optionally, the upper surface of the separating strip is an inner concave arc surface, and the front section of the lower surface is an outer convex arc surface.

Optionally, a connection line between two tips of the flow guide element is a long axis thereof, an axis perpendicular to the long axis and passing through a midpoint thereof is a short axis, and an included angle α between the short axis and a horizontal plane satisfies: alpha is more than or equal to 5 degrees and less than or equal to 10 degrees.

Optionally, an air deflector is arranged at the second air supply opening, and when the air deflector is in a closed state, the upward surface of the air deflector is an air guide surface, and the downward surface of the air deflector is a non-air guide surface; and is

The volute is provided with an inward concave arc section near the lower end of the volute, so that when the air deflector rotates to the state that the air guiding surface faces upwards forwards, the inward concave arc section guides and blows airflow to the non-air guiding surface.

Optionally, the front section of the air deflector is curved upwardly to direct the air flow towards the dividing strip underside surface when the air deflector is in the open condition.

In the wall-mounted air conditioner indoor unit, the two air supply outlets of the first air supply outlet and the second air supply outlet of the shell are separated by the separating strip, so that air can be supplied forwards and downwards, the air supply angle range is wider, and cold and warm distribution can be realized. When the air conditioner is used for refrigeration, cold air is conveyed forwards by the first air supply outlet, so that the aim of preventing people from being blown is fulfilled; when the air conditioner heats, the second air supply outlet is used for conveying hot air downwards, so that the hot air can reach the ground more easily. In addition, the rear end of the separating strip is particularly provided with the wedge part, the air outlet flow blown to the wedge part is split into an upper part and a lower part to flow forwards from the upper side and the lower side of the separating strip respectively, so that the resistance of the separating strip to the air outlet flow is smaller, and the problems of larger wind resistance and noise caused by the arrangement of the separating strip are avoided. Moreover, because the air flow flows through the lower side of the separating strip, no condensation is generated on the lower surface of the separating strip.

Furthermore, in the wall-mounted air conditioner indoor unit, the volute is provided with an inward concave arc section near the lower end of the volute, so that when the air deflector rotates to the state that the air guide surface faces upwards and forwards, the inward concave arc section guides and blows air flow to the non-air guide surface, and condensation of the non-air guide surface in a refrigeration mode can be avoided.

Further, in the wall-mounted air conditioner indoor unit of the present invention, when the air deflector is in the closed state, the front section thereof is bent upward, so that when the air deflector is in the open state, the air flow is guided to the lower side surface of the division bar, thereby preventing the lower side surface of the division bar from being condensed.

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

Drawings

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

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

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

FIG. 3 is a schematic cross-sectional view of the parting strip of FIG. 2;

FIG. 4 is a schematic view of another embodiment of the separator strip;

FIG. 5 is a schematic view of another embodiment of a separator strip;

fig. 6 is a cross-sectional view of a baffle of the wall-mounted air conditioning indoor unit of fig. 1;

fig. 7 is a schematic view of the wall-mounted indoor unit of an air conditioner of fig. 2 operating in a forward aggregate blowing mode;

fig. 8 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 7 after the air guide is moved forward;

fig. 9 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 operating in a down-draft mode;

fig. 10 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a maximum blowing mode.

Detailed Description

A wall-mounted type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 10. 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. An indoor unit of a wall-mounted type air conditioner is an indoor part of a split wall-mounted type room air conditioner for conditioning indoor air, such as cooling/heating, dehumidifying, introducing fresh air, and the like.

Fig. 1 is a schematic structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention; fig. 2 is a schematic enlarged sectional view of the wall-mounted air conditioning indoor unit shown 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 cabinet 10. 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 strip 152, and a volute tongue 151 and a volute 153 arranged in front and rear. The separation strip 152 is located below the front end of the volute tongue 151 and in front of the lower end of the volute casing 153 to define the air duct 15 together with the volute tongue 151 and the volute casing 153. The air duct 15 is a through-flow air duct. The separating strip 152 and the front end of the volute tongue 151 define a first air supply outlet 11 facing forward, and the separating strip 152 and the lower end of the volute 153 define a second air supply outlet 12 facing downward.

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 housing 10 is indicated by x in the figure. The first supply outlet 11, the second supply outlet 12, the separating strip 152, the volute tongue 151 and the volute 153 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.

Fig. 3 is a schematic cross-sectional view of the separator bar of fig. 2.

As shown in fig. 2 and 3, the rear end of the division bar 152 is formed with a rearwardly-facing wedge 1520 configured to split the flow of the outlet air blown thereto into upper and lower streams to flow forward from the upper and lower sides of the division bar 152, respectively.

In the wall-mounted air conditioner indoor unit of the embodiment of the utility model, the first air supply outlet 11 and the second air supply outlet 12 can supply air forwards and downwards, so that the air supply angle range is wider, and cold and warm distribution can be realized. Namely, when the air conditioner is used for refrigeration, cold air is conveyed forwards by the first air supply outlet 11, so that the aim of preventing people from being blown is fulfilled; when the air conditioner heats, the second air supply outlet 12 is used for downwards supplying hot air, so that the hot air can reach the ground more easily. The partition strip 152 for partitioning the first air supply opening 11 and the second air supply opening 12 is provided, and in the embodiment of the utility model, a wedge 1520 is particularly formed at the rear end of the partition strip 152, so that the air flow blown to the wedge is divided into an upper stream and a lower stream to flow forward from the upper and lower sides of the partition strip 152, respectively, so that the partition strip 152 has less resistance to the air flow. And because the air flow also flows through the lower side of the separation strip 152, no condensation is generated.

In some embodiments, as shown in fig. 2, adjacent to the first air blowing opening 11, the distance between the volute tongue 151 (specifically, the ba section) and the separation strip 152(ed section) is gradually reduced along the airflow direction, so as to form a tapered section of the air duct 15. In other words, the flow cross section of the air duct 15 becomes gradually smaller in the air flow direction adjacent to the first supply outlet 11. The wall-mounted air conditioning indoor unit further includes a guide 30. The flow guide member 30 is a rod-shaped member parallel to the length direction (x direction) of the first air supply opening 11, is disposed in the air duct 15, and defines air outlet gaps 154 and 155 with (the sa section of) the volute tongue 151 and (the ed section of) the flow guide member, respectively, and is configured to guide the air flow blown toward the first air supply opening 11 to the volute tongue 151 and the separation strip 152 of the air duct 15, so that the air flow gradually converges toward the center of the air flow and flows out of the first air supply opening 11 under the guidance of the tapered section of the air duct 15.

Due to the addition of the air guide 30, the flow cross section of the outlet air gaps 154, 155 is necessarily smaller than that of the original air duct 15, which makes the air flow velocity faster. The high-speed air flow is gradually converged towards the center direction of the air flow in the outward flowing process under the guide of the gradually-reduced section of the air duct 15 to form a convergence effect, so that the wind power is very strong, the air supply distance is farther, the requirements of a wall-mounted air conditioner indoor unit on remote air supply and strong air supply are met, the air supply range is larger, the refrigerating/heating speed of each part of the indoor space is more uniform, and the human body feels more comfortable.

In the embodiment of the present invention, the flow guiding element 30 not only defines the air outlet gaps 154 and 155 with the volute tongue 151 and the separating strip 152 of the air duct 15 to play a role of increasing the wind speed, but also just guides the airflow to the air outlet gaps 154 and 155, or forces the airflow to flow toward the air outlet gaps 154 and 155, so as to force the airflow to be subjected to the convergent guidance of the tapered section of the air duct 15, thereby forming the final convergent air supply effect. The embodiment of the utility model realizes a very good polymerization air supply effect only by improving the air duct 15 and additionally arranging the flow guide member 30, has very simple structure and lower cost, is easy to realize mass production and popularization, and has very ingenious conception.

FIG. 4 is a schematic view of another embodiment of the separator strip; FIG. 5 is a schematic view of another embodiment of the separator strip.

In some embodiments, as shown in fig. 2-5, a rear section of the upper surface 1521 of the separator bar 152 constitutes an upper surface of the wedge 1520. In this way, the wedge 1520 does not destroy the integrity of the upper surface 1521 of the partition bar 152, so that the upper surface 1521 of the partition bar 152 can guide the outlet airflow to be blown out from the first air outlet 11 more smoothly with less resistance. The rear section 1523 of the lower surface of the division bar 152 extends from front to rear along a broken, straight or arcuate line, approaching the upper surface 1521 of the division bar 152 to the rear end of the upper surface 1521 of the division bar 152 to form the wedge 1520. As shown in fig. 3 and 4, the lower surface rear section 1523 extends from front to rear along a fold line to the rear end of the upper surface 1521. As shown in fig. 5, the rear section 1523 extends straight from front to rear to the rear end of the upper surface 1521.

In some embodiments, the projection of the upper edge and the lower edge of the first air blowing opening 11 towards the flow guide member 30 can also fall on the flow guide member 30. That is, the size of the air guide 30 in the vertical direction is relatively larger, so that the downward inclined portion of the air outlet gap 154 formed by the air guide 30 and the volute tongue 151 of the air duct 15 is longer, and the upward inclined portion of the air outlet gap 155 formed by the separation strip 152 is longer, so as to guide the air flow more strongly to be inclined downward and upward respectively, to converge in front of the air guide 30 with greater wind force, and to make the air supply distance longer.

As shown in fig. 2, in the embodiment of the present invention, the cross section of the flow guide member 30 (the cross section extending in the front-rear direction cuts the flow guide member 30) has an outer contour of an "olive shape" having two upper and lower tips and two front-rear outwardly curved shapes. The convex curved surface of the guide member 30 facing backwards is very favorable for splitting the air flow into two parts and guiding the two parts upwards and downwards respectively, so that the guiding is smoother and the air flow resistance is smaller. The convex curved surface of the flow guide member 30 protruding forward can guide the airflow near the surface to flow along the surface, so as to gradually converge toward the center direction, and to perform the convergence action on the airflow together with the tapered inner wall of the air duct 15, thereby improving the convergence effect of the airflow.

Also, the upper tip of the baffle 30 is positioned forward and upward of the lower tip so that the rear surface of the baffle 30 faces rearward and upward and the front surface faces forward and downward. Therefore, the included angle between the polymerization air supply direction and the air direction of the upstream air duct is smaller, the air flow is easier to turn to the polymerization angle, the air outlet resistance is reduced, and the air quantity of the polymerization air supply is increased.

Specifically, as shown in fig. 2, a connection line between two tips of the flow guide 30 is a major axis z thereof, an axis perpendicular to the major axis z and passing through a midpoint O thereof is a minor axis y, and an included angle α between the minor axis y and a horizontal plane satisfies: alpha is more than or equal to 5 degrees and less than or equal to 10 degrees, and preferably, alpha is more than or equal to 6 degrees and less than or equal to 8 degrees. I.e. the angle at which the baffle 30 is tilted forward from vertical (with the upper tip directly above the lower tip). The angle alpha is limited within the range, so that on one hand, the air outlet resistance can be reduced, and the air quantity of the polymerization air supply can be increased; on the other hand, the influence of the downdip of the guide member 30 on the wind blowing angle can be avoided.

As shown in fig. 2, the section (as section) of the volute tongue 151 of the air duct 15 for defining the air outlet gap 154 is a curved section with a concave side facing downward, and may be an arc or be formed by connecting multiple arcs, and has a front end point a, a highest point b and a rear end point s, which surround the air guide 30 above the air guide 30. The upper surface 1521 of the separating strip 152 of the air duct 15 is a concave curved shape extending obliquely upward from the rear to the front, and is located at the front lower part of the flow guide 30. Thus, the air outlet gap 154 and the air outlet gap 155 are both curved or further arc-shaped, so that the airflow direction is changed to be smoother, and the airflow resistance is reduced. Preferably, the upper surface 1521 of the dividing strip 152 is curved and concave, and the front section 1522 of the lower surface is curved and convex.

In some embodiments, as shown in FIG. 2, the volute tongue 151 of the duct 15 further includes an inclined section (sc section) and an inlet section (ck section). The inclined section (sc section) is a straight line extending rearward and upward from the concave side of the volute tongue 151 toward the rear end of the downwardly curved section (as section). The inlet section (ck section) is bent and extended forwards and upwards from the rear end of the inclined section (sc section). The inclined section (sc section) and the inlet section (ck section) of the volute tongue 151 correspond to those of a conventional cross-flow duct. The included angle between the short axis y and the inclined segment (sc segment)

Satisfies the following conditions:

preferably satisfies

So that the included angle between the air direction of the polymerization air supply direction and the air direction of the upstream air duct (namely the inclined section) is smaller, the air flow is easier to turn to the polymerization angle, the air outlet resistance is reduced, and the air quantity of the polymerization air supply is increased. The inclination angle of the inclined section (sc section) is θ, and θ is preferably equal to or greater than 25 ° to facilitate the air flow to be directed obliquely downward and to facilitate heating and blowing.

Fig. 6 is a cross-sectional view of a guide of the wall-mounted air conditioning indoor unit of fig. 1.

In some embodiments, referring to fig. 6, the cross-sectional outer profile of the flow guide 30 can be made to include a front curve segment 31 and a rear curve segment 32. The top end and the bottom end of the two are transitionally connected by a round angle r. The radius of the front arc segment 31 may be greater than the radius of the rear arc segment 32, so that the rear arc segment 32 is relatively more convex, so that the distance between the rear arc segment 32 and the volute tongue 151 is smaller, the distance between the front arc segment 31 and the volute tongue 151 is relatively flatter, and the airflow can smoothly flow through the air outlet gap 154. Of course, in some alternative embodiments, the radius of the front arc segment 31 may also be made equal to or smaller than the radius of the rear arc segment 32. In other alternative embodiments, the front arc segment 31 and/or the rear arc segment 32 may be formed by connecting multiple arcs, and detailed description is omitted here.

Referring to fig. 6, the radius of the front arc segment 31 is R1, the radius of the rear arc segment 32 is R2, and the distance between the top end and the bottom end of the diversion element 30 is H, which satisfies the following conditions: R1/H is more than or equal to 0.5 and less than or equal to 0.8, R2/H is more than or equal to 0.5 and less than or equal to 0.8, and further R1/H is more than or equal to 0.3 and less than or equal to 0.6, and R2/H is more than or equal to 0.3 and less than or equal to 0.6. In this way, the width (the maximum dimension in the vertical direction) of the air guide member 30 and the curvature of the front and rear surfaces are more coordinated, so as to balance the air guiding effect and the flow resistance.

As shown in fig. 2, a wind deflector 60 is provided at the second supply port 12. The air guide plate 60 is rotatably installed to the cabinet 10 for opening or closing the second blowing port 12 and guiding the blowing direction of the second blowing port 12. Further, an air guide mechanism such as a flap assembly may be attached to the second air supply port 12.

Fig. 7 is a schematic view of the wall-mounted indoor unit of an air conditioner of fig. 2 operating in a forward aggregate blowing mode; fig. 8 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 7 after the air guide is moved forward; fig. 9 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 operating in a down-draft mode; fig. 10 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 in a maximum blowing mode.

In some embodiments, as shown in fig. 8 and 9, the deflector 30 may be configured to move back and forth to adjust the size of the air outlet gaps 154, 155. Specifically, the air outlet gaps 154 and 155 can be enlarged by moving the air guide member 30 backward to increase the wind force, increase the cooling/heating speed and extend the air supply distance, referring to the state change from fig. 8 to fig. 9. The air outlet gaps 154 and 155 can be adjusted to be small by moving the diversion piece 30 forward, so that the wind power is reduced, the natural wind is simulated, and the air flow comfort degree is higher. And, the back and forth movement of the guide member 30 also facilitates the closing of the first blowing port 11. The driving mechanism for driving the diversion member 30 to move back and forth is a rack and pinion mechanism, which is not described in detail. Therefore, the embodiment of the utility model has the following three air supply modes for the user to select, specifically as follows:

forward polymerization blow-in mode: as shown in fig. 2, the air guiding member 30 is located behind the first air supply opening 11, the air guiding plate 60 closes the second air supply opening 12, and the air is gathered and blown upward by the first air supply opening 11, so that the air flow avoids the human body, and then is scattered downward after reaching the highest point, thereby realizing a "shower type" refrigeration experience. When the air conditioner operates in a refrigeration mode, air can be supplied according to a polymerization air supply mode.

Downward air supply mode: as shown in fig. 9, the deflector 30 is controlled to move forward to close the first air blowing port 11, so that the air deflector 60 opens the second air blowing port 12, and air is blown downward from the second air blowing port 12 under the guidance of the air deflector 60. When the air conditioner operates in a heating mode, air can be supplied according to a lower air supply mode, so that the heating speed is accelerated. In this mode, the air deflector 60 may be in a vertically extending state, and the end thereof is adjacent to the volute tongue 151, so as to guide the air flow to flow downward and bend to the second air outlet. After the airflow enters the air duct 15, the cross section of the airflow gradually increases to realize diffusion, the airflow is turned vertically downwards under the action of the air deflector 60, and then the airflow passes through a tapered channel defined by the air deflector 60 and the volute 153 of the air duct 15 to realize acceleration before flowing out. Finally, the air quantity of the heating air supply is large, the air speed is high, the wind direction is vertical, the hot air can directly reach the ground, and the carpet type air supply effect is good.

The maximum air supply mode is as follows: as shown in fig. 10, the deflector 30 is positioned behind the first air blowing port 11, and the air deflector 60 opens the second air blowing port 12, so that the air is blown upward by the first air blowing port 11 and is blown forward and downward by the second air blowing port 12 under the guidance of the air deflector 60. When the air conditioner operates in a cooling or heating mode, the maximum air supply mode can be selected.

In some embodiments, the wall-mounted air conditioning indoor unit further has a cooling and dew condensation removing mode as shown in fig. 7 and 8.

Specifically, when the air guiding plate 60 is in the closed state, the upward surface is an air guiding surface 61, and the downward surface is a non-air guiding surface 62, referring to fig. 2. The volute 153 has a concave arc section 1531(fh section), preferably in a circular arc shape, near the lower end thereof, so that when the air deflector 60 is rotated to a state where the air deflecting surface 61 faces forward and upward, the air flow is guided to the non-air-guiding surface 62 by the concave arc section 1531, referring to fig. 7 and 8. In this way, during the cooling operation, the air deflector 60 can be rotated to open a predetermined angle, for example, 30 ° as shown in fig. 7 or 15 ° as shown in fig. 8, so that not only the air guiding surface 61 but also the non-air guiding surface 62 can pass through the air deflector, and no condensation is generated on both sides of the air deflector 60. Further, when the air guide plate 60 is in the closed state, the front section thereof is bent upward, specifically, the entire front section thereof may be curved in an arc shape, or only the front section thereof may be bent. In this way, when the air deflector 60 is in the open state, the curved section at the front of the air deflector 60 guides the airflow to the lower surface of the division bar 152, so that the lower surface of the division bar 152 does not generate condensation.

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

Claims

1. A wall-mounted air conditioner indoor unit is characterized by comprising a casing, wherein the casing comprises a separation strip, a volute tongue and a volute, the volute tongue and the volute are arranged in front and 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 define an air channel 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; and is

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

the distance between the volute tongue and the separating strip is gradually reduced along the airflow direction at the position close to the first air supply opening to form a gradually reduced section of the air duct; and is

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

the rear section of the upper surface of the division bar forms the upper surface of the wedge part; and is

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

the cross section profile of the flow guide part is in an olive shape with an upper tip end, a lower tip end, a front tip end and a rear tip end, wherein the front tip end and the rear tip end are convexly curved, the upper tip end is positioned in front of and above the lower tip end, the rear surface of the flow guide part faces the upper rear side, and the front surface faces the lower front side.

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

the section of the volute tongue for limiting the air outlet gap is a bent section with a downward concave side, and the bent section surrounds the flow guide piece above the flow guide piece; and is

6. The wall mounted air conditioning indoor unit of claim 5, wherein the volute tongue further comprises:

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

the upper surface of the separating strip is an inwards concave arc-shaped surface, and the front section of the lower surface of the separating strip is an outwards convex arc-shaped surface.

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

the connecting line between two tips of the flow guide piece is a long axis of the flow guide piece, an axis which is vertical to the long axis and passes through the midpoint of the long axis is a short axis, and an included angle alpha between the short axis and the horizontal plane satisfies the following conditions: alpha is more than or equal to 5 degrees and less than or equal to 10 degrees.

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

an air deflector is arranged at the second air supply opening, the upward surface of the air deflector is an air guide surface when the air deflector is in a closed state, and the downward surface of the air deflector is a non-air guide surface; and is

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

the front section of the air deflector is curved upwardly to direct air flow towards the underside surface of the dividing strip when the air deflector is in the open condition.