CN113623737B

CN113623737B - Wall-mounted air conditioner indoor unit

Info

Publication number: CN113623737B
Application number: CN202110859081.0A
Authority: CN
Inventors: 庄佳兰; 刘伟彤
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd; Chongqing Haier Air Conditioner Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd; Chongqing Haier Air Conditioner Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-05-16
Anticipated expiration: 2041-07-28
Also published as: WO2023005423A1; CN113623737A

Abstract

The invention provides a wall-mounted air conditioner indoor unit which comprises a shell and a flow guide piece. A first air supply port extending transversely is formed in the front side of the casing, an air channel connected with the first air supply port is formed in the casing, the air channel is adjacent to the first air supply port, and the distance between the upper wall and the lower wall of the air channel is gradually reduced along the air flow direction to form a tapered section. The flow guiding piece is in a rod shape parallel to the length direction of the first air supply opening, is arranged in the air duct, is respectively limited with the upper wall and the lower wall, and is used for guiding the air flow blown to the first air supply opening to the upper wall and the lower wall, so that the air flow gradually flows out of the first air supply opening towards the air flow center in a converging manner under the guidance of the converging section of the air duct; the flow guide piece is arranged to rotate around an eccentric shaft parallel to the length direction of the flow guide piece so as to adjust the distance between the flow guide piece and the upper wall and the distance between the flow guide piece and the lower wall, and further adjust the size of the two air outlet gaps. The wall-mounted air conditioner indoor unit has better remote air supply effect and adjustable air quantity and wind direction of aggregate air supply.

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 the casing, the air outlet faces to the front lower side, and an air deflector is arranged at the air outlet to guide the vertical air supply direction.

On this basis, some prior art has carried out a lot of improvement to the air-out structure, but owing to receive the restraint of air outlet orientation itself, air supply direction, air supply scope and air supply distance of air conditioner still receive very big restriction, influence user experience.

Disclosure of Invention

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 aggregate air supply.

A further object of the present invention is to provide an adjustable amount of air and direction of the aggregate air flow.

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

the shell is provided with a first air supply port which transversely extends and is in a strip shape, an air channel connected with the first air supply port is formed in the shell, the air channel is adjacent to the first air supply port, and the distance between the upper wall and the lower wall of the air channel is gradually reduced along the air flow direction to form a tapered section;

the guide piece is in a rod shape parallel to the length direction of the first air supply opening, is arranged in the air duct, is respectively limited with the upper wall and the lower wall, is used for guiding the air flow blown to the first air supply opening to the upper wall and the lower wall, and gradually flows out of the first air supply opening towards the air flow center in a converging way under the guidance of the air duct converging section; and is also provided with

The air guide piece is configured to rotate around an eccentric shaft parallel to the length direction of the air guide piece so as to adjust the distance between the air guide piece and the upper wall and the distance between the air guide piece and the lower wall, and further adjust the size of the two air outlet gaps.

Optionally, the outer peripheral surface of the flow guiding piece comprises a first outer convex surface and a second outer convex surface which face opposite, and the joint of the first outer convex surface and the second outer convex surface is a first top end and a second top end, so that the cross section profile of the flow guiding piece is olive-shaped;

the connecting line of the first top end and the second top end forms a long axis of the cross section of the flow guiding piece, the perpendicular bisector of the long axis forms a short axis of the cross section of the flow guiding piece, the intersection point of the two axes falls on the central axis of the flow guiding piece, and the eccentric axis and the central axis are arranged at intervals in parallel.

Optionally, the eccentric shaft intersects the minor axis and is between the second outer convex surface and the central axis and is configured to:

the air guiding device is provided with a first outer convex surface, a second outer convex surface and a lower wall, wherein the first outer convex surface faces forward to close the first air supply outlet, and the first outer convex surface faces backward to enable the air guiding piece, the upper wall and the lower wall to define the air outlet gap.

Optionally, the baffle is configured to: having a position with the first outer convex surface facing upward and against the upper wall with only the second outer convex surface spaced from the lower wall; and/or has a position such that the first outer convex surface faces downward and abuts the lower wall, leaving only the second outer convex surface spaced from the upper wall.

Optionally, the deflector is configured to be rotatable about the eccentric axis over a 360 ° range and to stay in any angular position.

Optionally, the section of the upper wall for defining the air outlet gap is a concave side downward bending section, and the section of the lower wall for defining the air outlet gap is a concave bending section gradually extending upwards from back to front.

Optionally, the first outer convex surface and the second outer convex surface are arc-shaped, and the first top end and the second top end form rounded corners;

the radius of the first outer convex surface is R1, the radius of the second outer convex surface is R2, the distance between the first top end and the second top end is H, and the following conditions are satisfied: R1/H is more than or equal to 0.5 and less than or equal to 0.8,0.5, and R2/H is more than or equal to 0.8.

Optionally, a second air supply opening 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 opening; and is also provided with

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

Optionally, the upward surface of the air deflector is an air guiding surface when the air deflector is in a closed state, and the downward surface is a non-air guiding surface; and is also provided with

The rear wall is provided with a concave arc-shaped section near the lower end of the rear wall, so that when the air deflector rotates to a state that the air deflector faces forward and upward, air flow is guided and blown to the non-air deflector face by the concave arc-shaped section.

Optionally, the air deflector is curved upwardly at its front section when in the closed condition so as to direct air flow towards the outside surface of the lower wall when the air deflector is in the open condition.

In the wall-mounted air conditioner indoor unit, in the process of blowing air flow to the first air supply opening, the air flow is guided by the guide piece to flow to the upper wall and the lower wall of the air duct and enters the corresponding air outlet gap. The air outlet speed is higher because the flow cross section of the air outlet gap is smaller. Under the guidance of the air duct converging section, the high-speed air flow gradually converges towards the center direction of the air flow in the outward flowing process, so that a converging effect is formed, the wind power is stronger, the air supply distance is longer, and the requirements of the wall-mounted air conditioner indoor unit on long-distance air supply and strong air supply are met. And the flow guide piece can rotate around the eccentric shaft of the flow guide piece, so that the distance between the outer surface of the flow guide piece and the upper wall and the lower wall of the air duct can be adjusted by rotating the flow guide piece to different positions, and the size of the air outlet gap can be adjusted, so that the air quantity of the first air supply outlet can be adjusted.

Further, in the wall-mounted air conditioner indoor unit, the air guide piece is of an olive-shaped structure, when the air guide piece rotates to different angle positions, the air guide piece is different from the changing direction (increasing or decreasing) and the amplitude of the distance between the upper wall of the air duct and the lower wall of the air duct, the air quantity contrast between the air outlet gap of the upper wall and the air outlet gap of the lower wall is changed, so that the polymerized air direction is changed, and the air conditioner can adjust the air direction of the polymerized air supply according to the air quantity contrast.

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

Drawings

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

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

FIG. 2 is an enlarged schematic cross-sectional view of a baffle according to one embodiment of the present invention;

fig. 3 is a schematic cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown in fig. 1;

FIG. 4 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex surface of the baffle member facing rearward;

FIG. 5 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex surface of the baffle facing upward;

FIG. 6 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex side of the baffle facing downward;

FIG. 7 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex surface of the baffle member facing forward and downward;

fig. 8 is a schematic view of the wall-mounted air conditioner indoor unit of fig. 3 in a down-blowing mode of operation;

FIG. 9 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 in a maximum air supply mode of operation;

FIG. 10 is a schematic cross-sectional view of the lower wall of the tunnel.

Detailed Description

A wall-mounted air conditioner indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 10. Where the terms "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "transverse", etc., refer to an orientation or positional relationship based on that shown in the drawings, this is merely for convenience in describing the invention and to simplify the description, and does not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. The flow direction of the air flow is schematically indicated by arrows.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include at least one, i.e. one or more, of the feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

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

The embodiment of the invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is an indoor part of a split wall-mounted room air conditioner and is used for adjusting indoor air, such as refrigeration/heating, dehumidification, fresh air introduction and the like.

Fig. 1 is a schematic structural view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention; FIG. 2 is an enlarged schematic cross-sectional view of a baffle according to one embodiment of the present invention; fig. 3 is a schematic cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown in fig. 1; FIG. 4 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex surface of the baffle member facing rearward; FIG. 5 is a schematic view of the wall-mounted air conditioner indoor unit of FIG. 3 with the first outer convex surface of the baffle facing upward; fig. 6 is a schematic view of the wall-mounted air conditioner indoor unit shown in fig. 3 with the first outer convex surface of the air guide facing downward.

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

The front side of the casing 10 is provided with a first air supply opening 11 in the form of a long strip extending transversely. The cabinet 10 is elongated extending in a horizontal direction for hanging on an indoor wall. The lateral direction of the housing 10, i.e. its length direction, is denoted x in the figure. An air duct 15 connected to the first air supply port 11 is formed in the interior of the casing 10. The casing 10 of the present embodiment includes a skeleton for forming a basic frame of the indoor unit and housing parts such as a scroll casing and a scroll tongue for defining the air duct 15, and is not a mere air conditioner housing. The first air supply port 11 is used for blowing the air flow in the casing 10 into the room to regulate the air in the room. The air flow can be cold air produced by the indoor unit of the wall-mounted air conditioner in a refrigerating mode, hot air produced by the indoor unit of the wall-mounted air conditioner in a heating mode, or fresh air introduced in a fresh air mode. Adjacent to the first air supply opening 11, the distance between the upper wall 151 (in particular, the ba section) and the lower wall 152 (in particular, the ed section) of the air duct 15 is gradually reduced along the air flow 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 duct 15 becomes gradually smaller in the air flow direction near the first air supply port 11.

The flow guide 30 is a rod-like member parallel to the length direction (x-direction) of the first air supply port 11, is disposed in the air duct 15, 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, respectively, and is configured to guide the air flow blown toward the first air supply port 11 toward the upper wall 151 and the lower wall 152 of the air duct 15, so that the air flow gradually flows toward the air flow center in a converging manner 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.

The flow guide 30 is added, so that the flow cross section of the

air outlet gaps

154 and 155 is necessarily smaller than that of the original air duct 15, and the air flow speed is faster. Under the guidance of the tapering section of the air duct 15, the high-speed air flow gradually converges towards the air flow center direction in the outward flowing process, so as to form a converging effect, so that the wind power is very strong, the air supply distance is longer, the requirements of the wall-mounted air conditioner indoor unit on long-distance air supply and strong air supply are met, the air supply range is larger, the refrigerating/heating speed of the indoor space is more uniform, and the human body feel is more comfortable.

In the embodiment of the present invention, the air 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, so as to play a role in increasing the wind speed, but also can just guide the air flow to the

air outlet gaps

154 and 155, or force the air flow to flow towards the

air outlet gaps

154 and 155, so that the air flow is forced to receive the converging guidance of the converging section of the air duct 15, and the final converging air supply effect is formed. The embodiment of the invention realizes very good aggregation air supply effect by improving the air duct 15 and adding the flow guide piece 30, has very simple structure, lower cost, easy realization of mass production popularization and very ingenious conception.

In the embodiment of the present invention, the deflector 30 is configured to rotate around an eccentric axis X parallel to the length direction thereof, so as to adjust the distance between the deflector and the upper wall 151 and the lower wall 152, and thus adjust the sizes of the two

air outlet gaps

154 and 155. The position of the eccentric shaft X is kept constant, and the distance between the eccentric shaft X and the upper wall 151 and the lower wall 152 is kept constant, but the position of the eccentric shaft X deviates from the geometric central axis of the deflector 30, so that the distances between each point on the outer peripheral surface of the deflector 30 and the eccentric shaft X are not completely the same, the deflector 30 rotates to different angles, and the sizes of the two

air outlet gaps

154 and 155 are necessarily changed. For example, when the deflector 30 rotates such that a section of its outer circumferential surface closer to the eccentric axis X faces the upper wall 151, its distance from the upper wall 151 will increase, and a section farther from the eccentric axis X faces the upper wall 151, its distance from the upper wall 151 will decrease.

In some embodiments, the flow guide 30 may be circular, oval, etc. in cross-section.

In other embodiments, as shown in fig. 1 to 4, the outer peripheral surface of the deflector 30 includes a first outer convex surface 31 and a second outer convex surface 32 facing opposite directions, where the first top end A1 and the second top end A2 meet, so that the cross-sectional profile of the deflector is "olive-shaped". The first outer convex surface 31 and the second outer convex surface 32 are similarly "snapped" together in opposite directions. The cross section of the flow guiding member 30 has a long axis z and a short axis y, the connection line of the first top end A1 and the second top end A2 forms the long axis z, the perpendicular bisector of the long axis z forms the short axis y (the long axis z and the short axis y are both line segments and are straight lines in this embodiment), the intersection point of the two axes (the long axis z and the short axis y) falls on the central axis X1 of the flow guiding member 30, and the eccentric axis X is arranged in parallel with the central axis X1 at intervals.

For example, the eccentric axis X may intersect the minor axis y and lie between the second outer convex surface 32 and the central axis X1. And, the deflector 30 is configured to have a closed position in which the first outer convex surface 31 is directed forward and the first air supply port 11 is closed, as shown in fig. 3; and has a position with the first outer convex surface 31 facing rearward such that the deflector 30 defines

air outlet gaps

154, 155 with the upper and

lower walls

151, 152, as shown in fig. 4. The first outer convex surface 31 may be located rearwardly as is the conventional aggregate supply location of an air conditioner. The first top end A1 and the second top end A2 of the flow guiding member 30 face downwards and upwards respectively, the first outer convex surface 31 faces backwards, and the outer convex shape is very beneficial to splitting the air flow into two parts and guiding upwards and downwards respectively, so that the guiding is smoother and the air flow resistance is smaller. The second convex surface 32 of the guide member 30 protruding forward can guide the air flow near the second convex surface to flow along the surface so as to gradually converge toward the center, so that the converging action is applied to the air flow together with the tapered inner wall of the air duct 15, and the air flow converging effect is improved.

Of course, it is also possible to provide the deflector 30 with the first outer convex surface 31 facing upward or downward so that the deflector 30 is spaced from the upper wall 151 and/or the lower wall 152 at other locations (fig. 5 and 6).

In this embodiment, the eccentric shaft X is located between the second outer convex surface 32 and the central axis X1, so that the first air supply port 11 can be closed just when the first outer convex surface 31 faces forward by properly designing the distance between the eccentric shaft X and the first air supply port 11. When the air conditioner is in the off or standby state, the first air supply opening 11 is closed by the first outer convex surface 31, so that dust or other foreign matters can be prevented from entering the casing 10, and an additional air door is not required to be provided for opening and closing the first air supply opening 11.

To match the outer contour of the deflector 30, the section (as section) of the upper wall 151 of the duct 15 defining the air gap 154 is a concave side-down curved section, which may be arcuate or formed by multiple arcuate segments joined together, having a front end point a, a highest point b and a rear end point s. The section (i.e., de section) of the lower wall 152 of the duct 15 defining the air gap 155 is a concave curved section extending gradually and upwardly from the rear to the front. When the deflector 30 is positioned with the first and second tips A1 and A2 facing downward and upward, respectively, the concave downward curved section of the upper wall 151 surrounds the deflector 30 above the deflector 30 with the lower wall 152 positioned forwardly and downwardly of the deflector 30. In this way, the air outlet gap 154 and the air outlet gap 155 are both curved or further arc-shaped, and the change of the cross section along the air flow direction is smaller, so that the air flow direction is changed more smoothly, and the air flow resistance is reduced. As shown in fig. 4, the upper wall 151 of the air 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 upper wall 151 toward the rear end of the downward curved section (as section). The inlet section (ck section) is bent and extended from the rear end of the inclined section (sc section) to the front upper side. The inclined section (sc section) and the inlet section (ck section) of the upper wall 151 correspond to the volute tongue of a conventional through-flow air duct.

In the embodiment of the present invention, since the flow guiding member 30 is in an "olive-shaped" structure, when it rotates to different angular positions, it is different from the changing direction (increasing or decreasing) and the changing amplitude of the distance between the upper wall 151 and the lower wall 152, which will result in the change of the air volume contrast between the air outlet gap 154 of the upper wall 151 and the air outlet gap 155 of the lower wall 152, so that the wind direction after merging changes, and the air conditioner can adjust the wind direction of the aggregate air supply accordingly. With particular reference to fig. 4 and 6.

(1) Please refer to fig. 4: when the first outer convex surface 31 is rearward, the sizes of the air-out gap 154 and the air-out gap 155 (refer to the width of the narrowest portion of the air-out gap) are substantially equal, so that the flow of the polymer gas flows substantially toward the front.

(2) When the first outer convex surface 31 is directed upward, the air outlet gap 154 becomes smaller and the air outlet gap 155 becomes larger than in the rearward state. The upward flow of the air-out gap 155 is caused to have a significantly increased volume, and to dominate the impingement junction with the downward flow of the air-out gap 154, so that the aggregated flow flows upward as a whole.

(3) Referring to fig. 6, when the first outer convex surface 31 faces downward, the air outlet gap 154 is larger and the air outlet gap 155 is smaller than in the backward state. The downward air flow from the air outlet gap 154 is greatly increased in volume, and the upward air flow from the air outlet gap 155 is dominant in impact and fusion, so that the aggregated air flow flows downward in an overall manner.

Fig. 7 is a schematic view of the wall-mounted air conditioner indoor unit shown in fig. 3 when the first outer convex surface of the deflector faces forward and downward.

The present invention further enables the deflector 30 to be configured to rotate about the eccentric axis through 360 ° and to stay in any angular position, thereby enabling a more flexible adjustment of the direction of the polymeric gas stream. For example, the deflector 30 may be rotated from the state of fig. 6 to the state of fig. 7, and the first outer convex surface 31 may be changed from the right downward to the front downward, so that the air outlet gap 154 may be reduced, and the downward inclination angle of the polymer airflow may be reduced. In summary, the present invention can adjust the direction and quantity of the flow of the polymer gas to the desired state by the user by allowing the deflector 30 to stay at any angular position.

In some embodiments, as shown in fig. 5, the baffle 30 may be configured to: there is a position where the first outer convex surface 31 is directed upward and against the upper wall 151, leaving only the second outer convex surface 32 spaced from the lower wall 152. At this time, the air outlet gap 154 is closed, and the air flows completely through the space between the second outer convex surface 32 and the lower wall 152, that is, the air outlet gap 155, so that the air can be blown upward and blown out, and the upward blowing effect is better because the downward inclined air flow does not impact with the air outlet gap.

Similarly, the flow guiding member 30 may also have a position where the first outer convex surface 31 faces downward and abuts against the lower wall 152, and only the second outer convex surface 32 is spaced from the upper wall 151, which is not shown. At this time, the air outlet gap 155 is closed, and the air flows completely through the space between the second outer convex surface 32 and the upper wall 151, that is, the air outlet gap 154, so that the air can be sunk and blown out, and the sinking angle of the air is larger because no upward air flows impact with the air outlet gap.

As shown in fig. 2, the first outer convex surface 31 and the second outer convex surface 32 may each be circular arc surfaces, and the radii thereof may be equal. Furthermore, in some alternative embodiments, the radius of the first outer convex surface 31 may be greater than the radius of the second outer convex surface 32, such that the second outer convex surface 32 is relatively more convex, such that it is spaced from the upper wall 151 less, and the first outer convex surface 31 is relatively more flat, such that it is spaced from the upper wall 151 more, to facilitate a smoother airflow through the air outlet gap 154. In other alternative embodiments, the first outer convex surface 31 and/or the second outer convex surface 32 may be formed by connecting multiple circular arcs, and the specific structure will not be described again.

Referring to fig. 2, the radius of the first outer convex surface 31 is R1, the radius of the second outer convex surface 32 is R2, and the distance between the first top end A1 and the second top end A2 of the flow guiding member 30 is H, which satisfies the following conditions: R1/H is more than or equal to 0.5 and less than or equal to 0.8,0.5, R2/H is more than or equal to 0.8, and R1/H is more than or equal to 0.3 and less than or equal to 0.6,0.3, and R2/H is more than or equal to 0.6. Therefore, the width (the distance between the A1 and the A2) of the flow guiding element 30 is more coordinated with the curvature of the two outer convex surfaces, so as to achieve the effect of balancing the wind guiding effect and the flow resistance.

In some embodiments, as shown in fig. 4, the distance between the upper and lower edges of the first air inlet 11 may be smaller than the width of the air guiding member 30, that is, the air guiding member 30 may be relatively wider, the first air inlet 11 may be relatively narrower, and thus the downward inclined portion of the air outlet gap 154 formed by the air guiding member 30 and the upper wall 151 of the air duct 15 may be longer, and the upward inclined portion of the air outlet gap 155 formed by the lower wall 152 may be longer, so as to more forcefully guide the air flow to incline downward and upward, respectively, to aggregate with greater wind force in front of the air guiding member 30, and to make the air feeding distance longer.

In some embodiments, as shown in fig. 3, the bottom wall of the casing 10 is provided with a second air supply port 12 opened downward and connected to the air duct 15, and an air deflector 60 is disposed at the second air supply port 12. In this way, the air can be blown from the second air blowing port 12 directly under the wall-mounted air conditioner indoor unit. Downward air supply is more favorable for accelerating the temperature rising speed of the lower space of the house in the heating mode, so that a human body can feel the heating effect more quickly.

The duct 15 includes the aforementioned upper wall 151 (ak) lower wall 152 (de) and rear wall 153 (fg) so as to be connected to the first air outlet 11 and the second air outlet 12. Wherein the front end (a) of the upper wall 151 and the front end (d) of the lower wall 152 define the first air supply opening 11. The rear end (e) of the lower wall 152 and the lower end (f) of the rear wall 153 define the second air supply opening 12, and the (k-section of the) upper wall 151 and the (g-end of the) rear wall together define the inlet of the air duct 15, and the cross-flow fan 50 is located at the inlet of the air duct 15. The rear wall 153 is a scroll of the cross flow fan and may have a curved structure with a concave side facing forward as a whole.

As shown in fig. 4, the upwardly facing surface of the air deflector 60 in the closed state is an air guiding surface 61, and the downwardly facing surface is a non-air guiding surface 62. The rear wall 153 of the duct 15 has a concave arc-shaped section 1531 (fh section) adjacent to its lower end, preferably circular arc-shaped, so that the air flow is guided by the concave arc-shaped section 1531 to blow toward the non-air guiding surface 62 when the air guiding plate 60 rotates to the state where the air guiding surface 61 faces forward and upward. In this way, during the cooling operation, the air deflector 60 can be turned to open by a predetermined angle, so that not only the air guiding surface 61 but also the non-air guiding surface 62 can pass through, and no condensation is generated on both sides of the air deflector 60. Further, when the air deflector 60 is in the closed state, the front section thereof is curved upward, and specifically, the entire air deflector may be curved or only the front section thereof may be curved. In this manner, when the deflector 60 is in the open position, the air flow is directed by the curved section of the front of the deflector 60 toward the outside surface 1522 of the lower wall 152 so that condensation does not form on the outside surface 1522 of the lower wall 152. The inside surface 1521 of the lower wall 152 is used to form a tapered section of the duct.

Fig. 8 is a schematic view of the wall-mounted air conditioner indoor unit of fig. 3 in a down-blowing mode of operation; fig. 9 is a schematic view of the wall-mounted air conditioner indoor unit shown in fig. 3 in a maximum air supply mode. The embodiment of the invention at least has the following air supply modes for users to select, and the embodiment is as follows:

forward aggregate blow mode: as shown in fig. 4, the deflector 30 is rotated to a state that the first outer convex surface 31 is directed rearward, the deflector 60 is closed to the second air supply port 12 or the second air supply port 12 is opened at a small angle to avoid condensation, and the air is blown forward by the first air supply port 11. When the air conditioner operates in the cooling mode, air can be supplied according to the aggregate air supply mode.

Cooling and upward blowing mode: as shown in fig. 5, the deflector 30 is rotated to a state in which the first outer convex surface 31 is directed upward, and the air deflector 60 closes the second air supply port 12 or opens the second air supply port 12 at a small angle to prevent condensation, and the air is supplied from the first air supply port 11 to the front upper side. When the air conditioner operates in the refrigeration mode, air can be supplied according to the upward air supply mode.

Refrigeration sinking air supply mode: as shown in fig. 6 and 7, the deflector 30 is rotated to a state where the first outer convex surface 31 is downward, and the deflector 60 closes the second air supply port 12 or opens the second air supply port 12 at a small angle to avoid condensation, and the air is blown forward and downward by the aggregation of the first air supply ports 11. When the air conditioner operates in the cooling mode, air can be supplied according to the air supply mode.

Downward air supply mode: as shown in fig. 8, the deflector 30 is controlled to close the first air outlet 11, the air deflector 60 opens the second air outlet 12, and the air is blown downward from the second air outlet 12 under the guidance of the air deflector 60. When the air conditioner operates in a heating mode, air can be supplied according to the lower air supply mode, so that the heating speed is increased. In this mode, the air deflector 60 may be disposed in a vertically extending state, and its end is adjacent to the upper wall 151 of the duct 15, so as to guide the supply air flow to flow downward in a bent manner, and flow to the second air supply opening. After the air flow enters the air duct 15, the cross section is gradually increased to realize diffusion, the air flow is deflected to vertically downwards after being acted by the air deflector 60, and then the air flow passes through a tapered channel defined by the air deflector 60 and the rear wall 153 of the air duct 15, so that the acceleration before the air flow flows out is realized. The final heating air supply quantity is large, the wind 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.

Maximum air supply mode: as shown in fig. 9, the first air outlet 11 and the second air outlet 12 are both opened, and both air is discharged at the same time.

FIG. 10 is a schematic cross-sectional view of the lower wall of the tunnel.

As shown in fig. 4 and 10, in some embodiments, the rear end of the lower wall 152 of the duct 15 has a wedge 1520 facing rearward toward the tip for splitting the air flow flowing thereto into two parts to flow out through both side surfaces of the lower wall 152, respectively, so that both side surfaces thereof are not condensed.

As shown in fig. 3, the wall-mounted air conditioner indoor unit may be an indoor unit of an air conditioner for cooling/heating by a vapor compression refrigeration cycle system, and further includes a heat exchanger 40 and a blower 50. The heat exchanger 40 is disposed in the housing 10, and is configured to exchange heat with an air flow flowing therethrough to form a heat exchange air flow, i.e., cold air or 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, to exchange heat with the heat exchanger 40 to form a heat exchange airflow, and then cause the heat exchange airflow to flow to the first air supply port 11 and the second air supply port 12 through the air duct 15, and finally blow from the first air supply port 11 and/or the second air supply port 12 into the room.

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

Claims

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

the shell is provided with a first air supply port which transversely extends and is in a strip shape, an air channel connected with the first air supply port is formed in the shell, the air channel is adjacent to the first air supply port, and the distance between the upper wall and the lower wall of the air channel is gradually reduced along the air flow direction to form a tapered section; and

The air guide piece is configured to rotate around an eccentric shaft parallel to the length direction of the air guide piece so as to adjust the distance between the air guide piece and the upper wall and the distance between the air guide piece and the lower wall, and further adjust the size of the two air outlet gaps;

the upper wall is used for limiting the section of the air outlet gap to be a concave side downward bent section, and the lower wall is used for limiting the section of the air outlet gap to be a concave bent section which gradually and upwards extends from back to front in an inclined mode;

the outer peripheral surface of the flow guiding piece comprises a first outer convex surface and a second outer convex surface which face opposite directions, and the joint of the first outer convex surface and the second outer convex surface is a first top end and a second top end, so that the cross section outline of the flow guiding piece is olive-shaped;

the connecting line of the first top end and the second top end forms a long axis of the cross section of the flow guiding piece, a perpendicular bisector of the long axis forms a short axis of the cross section of the flow guiding piece, an intersection point of the two axes falls on a central axis of the flow guiding piece, and the eccentric axis and the central axis are arranged at intervals in parallel;

the eccentric shaft intersects the minor axis and is between the second outer convex surface and the central axis and is configured to: the air guiding device is provided with a first outer convex surface, a second outer convex surface and a lower wall, wherein the first outer convex surface faces forward to close the first air supply outlet, and the first outer convex surface faces backward to enable the air guiding piece, the upper wall and the lower wall to define the air outlet gap.

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

the baffle is configured to: having a position with the first outer convex surface facing upward and against the upper wall with only the second outer convex surface spaced from the lower wall; and/or has a position such that the first outer convex surface faces downward and abuts the lower wall, leaving only the second outer convex surface spaced from the upper wall.

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

the deflector is configured to rotate about the eccentric axis through 360 ° and to rest in any angular position.

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

the first outer convex surface and the second outer convex surface are arc-shaped, and the first top end and the second top end form round corners; and is also provided with

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

the bottom wall of the shell is provided with a second air supply opening which is opened downwards and connected with the air duct, and an air deflector is arranged at the second air supply opening; and is also provided with

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

the upward surface of the air deflector is an air guiding surface when the air deflector is in a closed state, and the downward surface is a non-air guiding surface; and is also provided with

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

the air deflector is upwardly curved in its forward section when in the closed condition so as to direct air flow toward the outside surface of the lower wall when in the open condition.