CN216131990U

CN216131990U - Wall-mounted air conditioner indoor unit

Info

Publication number: CN216131990U
Application number: CN202121734290.4U
Authority: CN
Inventors: 李英舒; 陈绍文; 李婧; 尹晓英; 鲁镇语; 黄满良; 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
Also published as: WO2023005329A1

Abstract

The utility model provides a wall-mounted air conditioner indoor unit, which comprises a shell and a flow guide piece. The casing front side is opened and is equipped with the rectangular form first supply-air outlet of horizontal extension, and inside is formed with the wind channel of connecting first supply-air outlet, and the wind channel diminishes along the air current direction at the interval that is close to the upper wall of first supply-air outlet department and lower wall gradually, constitutes the convergent section. The flow guide piece is in a rod shape parallel to the length direction of the first air supply outlet, is arranged in the air duct, respectively limits an air outlet gap with the upper wall and the lower wall of the air duct, and is used for guiding the airflow blown to the first air supply outlet to the upper wall and the lower wall of the air duct so that the airflow gradually converges towards the airflow center and flows out of the first air supply outlet under the guidance of the gradually-reduced section of the air duct; and the projection of the upper edge and the lower edge of the first air supply outlet towards the flow guide piece falls on the flow guide piece. The wall-mounted air conditioner indoor unit has better remote air supply and powerful air supply effects.

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 capable of converging an air supply.

It is a further object of the present invention to enhance the polymerization of gas streams.

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

the air conditioner comprises a shell, a fan body and a fan blade, wherein a first transversely extending strip-shaped air supply outlet is formed in the front side of the shell, an air duct connected with the first air supply outlet is formed inside the shell, and the distance between the upper wall and the lower wall of the air duct close to the first air supply outlet is gradually reduced along the airflow direction to form a gradually reducing section; and

the flow guide piece is in a rod shape parallel to the length direction of the first air supply outlet, is arranged in the air duct, respectively defines an air outlet gap with the upper wall and the lower wall of the air duct, and is used for guiding the airflow blowing to the first air supply outlet to the upper wall and the lower wall of the air duct so that the airflow gradually converges towards the airflow center and flows out of the first air supply outlet under the guidance of the air duct tapered section; and is

The projection of the upper edge and the lower edge of the first air supply outlet towards the flow guide piece falls on the flow guide piece.

Optionally, the cross-sectional profile of the flow guide piece is an olive shape with an upper tip and a lower tip and with a front convex curved shape and a rear convex curved shape;

the section of the upper wall of the air duct, which is used 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

The section of the air duct lower wall for limiting the air outlet gap is an inwards concave bent section which extends upwards in an inclined manner from back to front and is positioned in front of and below the flow guide piece.

Optionally, the top and the bottom interval of water conservancy diversion spare are H, the width of first supply-air outlet is H, satisfies: H-H is more than or equal to 4mm and less than or equal to 10mm,

optionally, the outer surface of the air guide is closest to the upper wall of the air duct by a distance d1, and is closest to the lower wall of the air duct by a distance d3, so that: d3 is more than or equal to 1.5d1 and less than or equal to 2d 1.

Optionally, the closest distance between the outer surface of the flow guide piece and the upper wall of the air duct is d1, and the width of the first air supply opening is h, so that the following conditions are met: d1 is more than or equal to 0.15h and less than or equal to 0.25 h.

Optionally, the cross-sectional outer contour of the flow guide piece comprises a front arc line segment and a rear arc line segment, and the top end and the bottom end of the front arc line segment and the bottom end of the rear arc line segment are connected in a fillet transition mode.

Optionally, the radius of the front arc segment is R1, the radius of the rear arc segment is R2, and the distance between the top end and the bottom end of the flow guide piece is H, so that: R1/H is more than or equal to 0.5 and less than or equal to 0.8, and R2/H is more than or equal to 0.5 and less than or equal to 0.8.

Optionally, the radius of the front arc segment is greater than the radius of the rear arc segment.

Optionally, a second air supply outlet which is open downwards and connected with the air duct is formed in the bottom wall of the casing, and an air deflector is arranged at the second air supply outlet;

the air duct comprises the upper wall, the lower wall and a rear wall, the front end of the upper wall and the front end of the lower wall define the first air supply outlet, the lower end of the lower wall and the lower end of the rear wall define the second air supply outlet, and the upper wall and the rear wall define an inlet of the air duct; and is

When the air deflector is in a closed state, the distance between the bottom end of the flow guide piece and the upper surface of the air deflector is d2, and the closest distance between the outer surface of the flow guide piece and the upper wall of the air duct is d1, so that the requirements of: d2 is more than or equal to 1.5d1 and less than or equal to 2d 1.

Optionally, the air guide member is configured to move back and forth so as to adjust the size of the air outlet gap and facilitate closing the first air supply opening.

In the wall-mounted air conditioner indoor unit, the section of the air duct close to the first air supply outlet is a tapered section, so that the overflowing section of the air duct is gradually reduced along the airflow direction. The air outlet clearance is respectively limited by the flow guide piece in the air duct and the upper wall and the lower wall of the air duct. When the airflow blows to the first air supply outlet, the airflow is guided by the flow guide piece to flow to the upper wall and the lower wall of the air duct and enter the corresponding air outlet gap. Because the overflowing cross section of the air outlet gap is smaller, the air outlet speed is higher. The high-speed airflow is gradually converged towards the center of the airflow in the outward flowing process under the guidance of the gradually-reduced section to form a convergence effect, so that the wind power is stronger, the air supply distance is farther, and the requirements of the wall-mounted air conditioner indoor unit on long-distance air supply and strong air supply are met.

In addition, because the projection of the upper edge and the lower edge of the first air supply outlet towards the flow guide piece falls on the flow guide piece, namely the vertical dimension of the flow guide piece is relatively larger, the downward inclined part of the air outlet gap formed by the flow guide piece and the upper wall of the air duct is longer, and the upward inclined part of the air outlet gap formed by the lower wall of the air duct is longer, so that the air flow is more powerfully guided to be respectively inclined downwards and upwards, the air flow is converged in front of the flow guide piece by larger wind force, and the air supply distance is longer.

Furthermore, the wall-mounted air conditioner indoor unit of the utility model enables d3 to be more than or equal to 1.5d1 and less than or equal to 2d1(d1 is the closest distance between the outer surface of the flow guide piece and the upper wall of the air duct, and d3 is the closest distance between the outer surface of the flow guide piece and the lower wall of the air duct), so that the air outlet gap between the flow guide piece and the lower wall of the air duct is larger, the air volume is larger, the air outlet gap between the flow guide piece and the upper wall of the air duct is smaller, and the air volume is smaller, therefore, the upward air guiding force of the lower wall of the air duct is larger than the downward air guiding force of the upper wall of the air duct, and two air flows are integrally upward after being converged and gathered. In the refrigeration mode, the rising and flowing cold air can fully avoid the human body and scatter downwards after reaching the highest point, so that the shower type refrigeration experience is realized. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.

Furthermore, the relation between the closest distance d1 between the outer surface of the flow guide piece and the upper wall of the air duct and the width h of the first air supply opening is specially set, so that d1 is more than or equal to 0.15h and less than or equal to 0.25h, the width of d1 is more matched with the width h of the first air supply opening, and the air flow polymerization effect is better.

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 an enlarged view at A of FIG. 2;

fig. 4 is a cross-sectional view of a baffle of the wall-mounted air conditioning indoor unit of fig. 1;

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

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 view of a drive mechanism for the deflector.

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 7. 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 cross-sectional enlarged view of the wall-mounted air conditioning indoor unit shown in fig. 1; fig. 3 is an enlarged view of fig. 2 at a.

As shown in fig. 1 to 3, a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention may generally include a cabinet 10 and a guide 30.

A first air supply outlet 11 is formed in the front of the casing 10 and extends in the transverse direction. The cabinet 10 is a long bar extending in a horizontal direction for hanging on an indoor wall. The lateral direction of the housing 10, i.e. its length direction, is indicated by x in the figure. An air duct 15 connected to the first blowing port 11 is formed inside the casing 10. The casing 10 of the present embodiment includes a framework for forming a basic frame of the indoor unit and body components such as a volute and a volute tongue for defining the air duct 15, and is not a pure air conditioning casing. The first air blowing port 11 is used for blowing an air flow in the casing 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 distance between the upper wall 151 (specifically, the ba section) and the lower wall 152 (specifically, the ed section) of the air duct 15 adjacent to the first air supply outlet 11 is gradually reduced along the airflow direction, so as to form a tapered section of the air duct 15, as shown in fig. 2. 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 flow guide member 30 is a rod-shaped member parallel to the longitudinal direction (x direction) of the first air blowing opening 11, is disposed in the air duct 15, and defines

air outlet gaps

154 and 155 with (the sa section of) the upper wall 151 and (the ed section of) the lower wall 152 thereof, respectively, and is configured to guide the air flow blown toward the first air blowing opening 11 to the upper wall 151 and the lower wall 152 of the air duct 15, so that the air flow gradually flows out of the first air blowing opening 11 toward the center of the air flow while being converged under the guidance of the tapered section (defined by the ba section of the upper wall and the ed section of the lower wall) of the air duct 15. And, the projections of the upper edge a and the lower edge d of the first blowing port toward the guide member 30 (a 0 and d0, respectively) fall on the guide member 30, rather than outside the guide member 30, and the projection directions are shown by dotted hollow arrows in fig. 3.

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. And, since the upper edge a, the lower edge d of the first blowing port 11 fall on the guide member 30 toward the projections a0 and d0 of the 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 upper wall 151 of the air duct 15 is longer, and the upward inclined portion of the air outlet gap 155 formed by the lower wall 152 is longer, so as to guide the air flow more strongly downward and upward respectively, to converge in front of the air guide 30 with a larger wind force, and to make the air supply distance longer.

In the embodiment of the present invention, the flow guiding element 30 not only defines the

air outlet gaps

154 and 155 with the upper wall 151 and the lower wall 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 converged and guided by the tapered section of the air duct 15, thereby forming the final converged 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.

As shown in fig. 2, 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, and further includes a heat exchanger 40 and a blower 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 fan 50 is disposed in the casing 10, 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, and then cause the heat exchange air flow to the first air supply outlet 11 through the air duct 15, and finally blow the air into the room through the first air supply outlet 11.

Fig. 4 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. 2 to 4, the cross-section of the flow guide 30 (the cross-section extending in the front-rear direction cuts the flow guide 30) is contoured as an "olive" having two upper and lower points, and two front and 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.

The section (as section) of the upper wall 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 arc sections, and has a front end point a, a highest point b and a rear end point s. Which surrounds the baffle 30 above the baffle 30. The section (i.e., the section de) of the lower wall 152 of the air duct 15 for defining the air outlet gap 155 is a concave curved section extending from the rear to the front and inclined upward, and is located at the front lower part of the air deflector 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.

In particular, with reference to fig. 4, the cross-sectional outer profile of the flow guide 30 may 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 made larger 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 upper wall 151 is smaller, and the distance between the front arc segment 31 and the upper wall 151 is relatively flatter, so that the airflow can more 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. 3 and 4, 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 flow guide 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.

In some embodiments, as shown in fig. 3, the distance between the top end and the bottom end of the flow guiding element 30 is H, and the width of the first blowing opening 11 is H, which satisfy the following relationship: H-H is more than or equal to 4mm and less than or equal to 10mm, and H-H is more than or equal to 6mm and less than or equal to 8mm, so that the downward inclined part of the air outlet gap 154 formed by the flow guide member 30 and the upper wall 151 of the air duct and the upward inclined part of the air outlet gap 155 formed by the flow guide member and the lower wall 152 are not too long, and the increase of the airflow resistance is avoided.

As shown in fig. 3, the closest distance between the outer surface of the air guide 30 and the upper wall 151 is d1, the closest distance between the outer surface of the air guide 30 and the lower wall 152 is d3, preferably, d3 is greater than or equal to 1.5d1 and less than or equal to 2d1, and further, d3 is greater than or equal to 1.7d1 and less than or equal to 1.9d1, so that the gap between the air guide 30 and the lower wall 152 of the air duct is larger, the air volume is larger, the gap between the air guide 152 and the upper wall 151 of the air duct is smaller, and the air guiding force of the lower wall 152 is greater than the air guiding force of the upper wall 151 of the air duct, so that the two air flows are converged and gathered and then flow upwards as a whole, and fig. 2 illustrates the air flow direction with arrows, please refer to refer. In the refrigeration mode, the rising and flowing cold air can fully avoid the human body and scatter downwards after reaching the highest point, so that the shower type refrigeration experience is realized. Moreover, the air flow is blown upwards to be beneficial to improving the air supply distance.

In addition, the upward angle of the airflow in the air outlet gap 155 of the lower wall 152 may be larger than the downward angle of the airflow in the air outlet gap 154 of the upper wall 151, so that the airflow in the air outlet gap 155 drives the airflow in the air outlet gap 154 to flow upward and forward together.

Referring to fig. 3, the width of the first blowing port 11 is h. The inventor finds that the relation between d1 and h has a large influence on the air supply distance through a plurality of tests. When d1 is more than or equal to 0.25h and more than or equal to 0.15h, d1 is more than or equal to 0.22h and the air supply distance is larger.

In some embodiments, as shown in fig. 2, the bottom wall of the casing 10 is opened with a second air supply outlet 12 which is open downwards and connected with the air duct 15. In this way, air can be supplied from the second air supply outlet 12 to the right below the wall-mounted air conditioning indoor unit. The downward air supply in the heating mode is more favorable for accelerating the temperature rising speed of the lower-layer space of the house, so that the human body can feel the heating effect more quickly.

The duct 15 includes the aforementioned upper wall 151(ak), a lower wall 152(de) and a rear wall 153(fg) for connecting the first supply port 11 and the second supply port 12. Wherein the front end (a) of the upper wall 151 and the front end (d) of the lower wall 152 define the first blowing port 11. The rear end (e) of the lower wall 152 and the lower end (f) of the rear wall 153 define the second supply port 12, the (k-section of the) upper wall 151 and the (g-end of the) rear wall together define the inlet of the duct 15, and the cross-flow fan 50 is located at the inlet of the duct 15. The rear wall 153 is a volute of the crossflow blower which as a whole may be of a concave side forward curved configuration.

Referring to fig. 2, an air deflector 60 is disposed at the second air inlet 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. The rear wall 153 is a volute of the cross-flow fan, and is specifically a curved structure with a concave side facing forward; the section (sck) of the upper wall 151 other than the as segment is the volute tongue of the crossflow blower. It includes a kc section extending rearwardly and downwardly and a cs section extending forwardly and downwardly. And the inclination angle of the cs section is theta, preferably the theta is more than or equal to 25 degrees, so that the air flow is favorably guided to the obliquely lower part, and the heating and air outlet are favorably realized.

When the air deflector 60 is in the closed state, as shown in fig. 2, the distance d2 between the bottom end of the air deflector 30 and the upper surface of the air deflector 60 is defined, and the air flows through the distance to the air outlet gap 155. Preferably, d2 is greater than or equal to 1.5d1 and less than or equal to 2d1, so that more air flows enter the air outlet gap 155, the force for guiding the air upwards by the lower wall 152 is greater than the force for guiding the air downwards by the upper wall 151, and the two air flows are converged and gathered to flow upwards as a whole.

Fig. 5 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 2 operating in a downdraft mode; fig. 6 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. 5 and 6, 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 diversion member 30 backward to improve the wind power, accelerate the cooling/heating speed and prolong the air supply distance; the

air outlet gaps

154 and 155 can be adjusted to be small by moving the diversion member 30 forward to reduce the wind force, simulate the natural wind and ensure higher air flow comfort. And, the back and forth movement of the guide member 30 also facilitates the closing of the first blowing port 11. 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. 5, 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.

The maximum air supply mode is as follows: as shown in fig. 6, 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.

It should be noted that, in the foregoing embodiment, the dimensional relationship between the air guide 30 and the upper wall 151 and the lower wall 152 of the air duct 15, and the like, are defined based on the state that the air guide 30 opens the first air supply outlet 11 (as shown in fig. 2).

Fig. 7 is a schematic view of a drive mechanism for the deflector.

In some embodiments, as shown in fig. 7, the driving mechanism for driving the deflector 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 front-rear direction and fixed to the air guide 30, a gear 72 engaged with the rack 71, and a motor 73 for driving the gear 72 to rotate to drive the rack 71 to translate back and forth. 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 allow the baffle 30 to translate back and forth in a reciprocating manner. The motor 73 may be a stepper motor.

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, comprising:

the air duct is close to the first air supply opening, and the distance between the upper wall and the lower wall of the air duct is gradually reduced along the airflow direction to form a gradually-reduced section; and

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

the cross section outline of the flow guide piece is in an olive shape with an upper tip end, a lower tip end, a front convex bent shape and a rear convex bent shape;

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

the top and the bottom interval of water conservancy diversion spare are H, the width of first supply-air outlet is H, satisfies: H-H is more than or equal to 4mm and less than or equal to 10 mm.

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

the outer surface of the flow guide piece is d1 closest to the upper wall of the air duct, and d3 closest to the lower wall of the air duct, so that the following requirements are met: d3 is more than or equal to 1.5d1 and less than or equal to 2d 1.

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

the outer surface of the flow guide piece is d1 from the upper wall of the air duct, the width of the first air supply opening is h, and the following requirements are met: d1 is more than or equal to 0.15h and less than or equal to 0.25 h.

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

the outer contour of the cross section of the flow guide piece comprises a front arc line section and a rear arc line section, and the top end and the bottom end of the front arc line section and the rear arc line section are connected in a fillet transition mode.

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

the radius of preceding arc line section is R1, the radius of back arc line section is R2, the top and the bottom interval of water conservancy diversion spare are H, satisfy: R1/H is more than or equal to 0.5 and less than or equal to 0.8, and R2/H is more than or equal to 0.5 and less than or equal to 0.8.

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

the radius of the front arc segment is greater than the radius of the rear arc segment.

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

a second air supply outlet which is opened downwards and connected with the air duct is formed in the bottom wall of the shell, and an air deflector is arranged at the second air supply outlet;

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

the flow guide piece is configured to be capable of moving back and forth so as to adjust the size of the air outlet gap and facilitate the sealing of the first air supply outlet.