Wall-mounted air conditioner indoor unit

Abstract

The present invention provides a wall-mounted air conditioner indoor unit, which includes a casing and a flow guide member. A long strip-shaped first air outlet extending horizontally is formed on the front side of the casing, and an air duct connecting the first air outlet is formed inside. At a position near the first air outlet, the distance between the upper wall and the lower wall of the air duct gradually decreases along the air flow direction, forming a tapered section; the flow guide member is rod-shaped parallel to the length direction of the first air outlet, is arranged in the air duct, and respectively defines an air outlet gap with its upper wall and lower wall, and is used to guide the air flow blowing towards the first air outlet to the upper wall and the lower wall of the air duct, so that the air flow gradually converges towards the center of the air flow and flows out of the first air outlet under the guidance of the tapered section of the air duct; and the flow guide member is provided with an air flow channel penetrating through its front and rear surfaces before and after, so as to lead a part of the air flow in the casing to the front side of the flow guide member. The wall-mounted air conditioner indoor unit of the present invention has better long-distance air supply and strong air supply effects.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a wall-mounted air conditioner indoor unit. Background Art

[0002] In the existing wall-mounted air conditioner indoor unit, a long strip-shaped air outlet is usually arranged at the lower part of the front side of the casing. The air outlet faces the front lower side, and a wind deflector is arranged at the air outlet to guide the up-and-down air supply direction.

[0003] On this basis, many improvements have been made to the air outlet structure in some existing technologies. However, due to the constraint of the orientation of the air outlet itself, the air supply direction, air supply range and air supply distance of the air conditioner are still greatly limited, affecting the user experience. Summary of the Invention

[0004] An object of the present invention is to overcome or at least partially solve the above problems, and provide a wall-mounted air conditioner indoor unit capable of aggregating air supply.

[0005] A further object of the present invention is to avoid condensation on the front surface of the deflector.

[0006] A further object of the present invention is to improve the air flow aggregation effect.

[0007] In particular, the present invention provides a wall-mounted air conditioner indoor unit, which includes:

[0008] A casing, having a long strip-shaped first air outlet extending horizontally on the front side, and a duct connected to the first air outlet is formed inside. At a position near the first air outlet of the duct, the distance between the upper wall and the lower wall gradually becomes smaller along the air flow direction, forming a tapered section; and

[0009] A deflector, which is rod-shaped parallel to the length direction of the first air outlet, is arranged in the duct and defines an air outlet gap with the upper wall and the lower wall respectively, and is used to guide the air flow blowing towards the first air outlet to the upper wall and the lower wall of the duct, so that the air flow gradually aggregates towards the center of the air flow and flows out of the first air outlet under the guidance of the tapered section of the duct; and

[0010] An air flow channel penetrating through the front and rear surfaces of the deflector is provided to lead a part of the air flow in the casing to the front side of the deflector.

[0011] Optionally, the deflector is a hollow structure, and a plurality of micropores communicating with the internal cavity of the deflector are provided on both the front surface and the rear surface, and the micropores and the cavity together constitute the air flow channel.

[0012] Optionally, each of the micropores is a round hole and is evenly distributed on the outer surface of the deflector.

[0013] Optionally, the flow guide is a solid structure and is provided with a plurality of ventilation holes penetrating its front and rear surfaces, and the ventilation holes constitute the air flow channel.

[0014] Optionally, the projections of the upper and lower edges of the first air supply opening onto the flow guide fall on the flow guide.

[0015] Optionally, the cross-sectional outer contour of the flow guide is an "olive shape" with two upper and lower tips and two front and rear outwardly convex curved shapes;

[0016] The section of the upper wall of the air duct for defining the air outlet gap is a curved section with the concave side facing downwards, which surrounds the flow guide above the flow guide; and

[0017] The section of the lower wall of the air duct for defining the air outlet gap is an inwardly concave curved section that gradually slopes upwards from back to front, and is located in front of and below the flow guide.

[0018] Optionally, the closest distance between the outer surface of the flow guide and the upper wall of the air duct is d1, the closest distance between the outer surface of the flow guide and the lower wall of the air duct is d3, and the width of the first air supply opening is h, satisfying:

[0019] 1.5d1 ≤ d3 ≤ 2d1; 0.15h ≤ d1 ≤ 0.25h.

[0020] Optionally, the outer contour of the cross-section of the flow guide includes a front arc segment and a rear arc segment, and the top and bottom of the two are connected by a rounded corner transition;

[0021] The radius of the front arc segment is R1, the radius of the rear arc segment is R2, and the distance between the top and bottom of the flow guide is H, satisfying: 0.5 ≤ R1 / H ≤ 0.8, 0.5 ≤ R2 / H ≤ 0.8.

[0022] Optionally, the bottom wall of the housing is provided with a second air supply opening that opens downwards and is connected to the air duct, and a wind guide plate is provided at the second air supply opening;

[0023] The air duct includes the upper wall, the lower wall and the rear wall. The front end of the upper wall and the front end of the lower wall define the first air supply opening, the rear end of the lower wall and the lower end of the rear wall define the second air supply opening, and the upper wall and the rear wall define the inlet of the air duct.

[0024] Optionally, the flow guide is configured to be movable back and forth to adjust the size of the air outlet gap and facilitate closing the first air supply opening.

[0025] In the wall-mounted air conditioner indoor unit of the present invention, the section of the air duct near the first air outlet is a tapered section, so that its cross-sectional area gradually decreases along the air flow direction. The air guiding member in the air duct and the upper and lower walls of the air duct respectively define an air outlet gap. During the process of the air flow blowing towards the first air outlet, it will flow towards the upper and lower walls of the air duct under the guidance of the air guiding member and enter the corresponding air outlet gaps. Since the cross-sectional area of the air outlet gap is smaller, the air outlet speed is higher. Under the guidance of the tapered section, the high-speed air flow gradually converges towards the center of the air flow during the outward flow process, forming a converging effect, making the wind stronger and the air supply distance farther, meeting the requirements of the wall-mounted air conditioner indoor unit for long-distance air supply and strong air supply. Moreover, the air guiding member is provided with an air flow channel penetrating its front and rear surfaces to lead out part of the air flow in the casing to the front side of the air guiding member, thereby reducing the eddy current in front of the air guiding member to avoid condensation on the front surface of the air guiding member when the air conditioner is refrigerating.

[0026] Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the air guiding member is a hollow structure, and a plurality of micropores communicating with the internal cavity of the air guiding member are provided on both its front side and rear side. The air guiding member can move back and forth to close the first air outlet. At this time, most of the air flow in the casing is blown out through the micropores of the air guiding member, forming a kind of gentle breeze effect, making people feel more comfortable.

[0027] Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the projections of the upper and lower edges of the first air outlet on the air guiding member fall on the air guiding member, that is, the size of the air guiding member in the vertical direction is relatively larger, so that the downwardly inclined part of the air outlet gap formed by the air guiding member and the upper wall of the air duct is longer, and the upwardly inclined part of the air outlet gap formed by the air guiding member and the lower wall of the air duct is longer, so as to more powerfully guide the air flow to incline downward and upward respectively, and converge in front of the air guiding member with greater wind force, making the air supply distance farther.

[0028] Those skilled in the art will become more clear about the above and other objects, advantages and features of the present invention according to the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Description of the Drawings

[0029] Hereinafter, some specific embodiments of the present invention will be described in detail with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0031] Figure 2 is Figure 1 a schematic enlarged sectional view of the shown wall-mounted air conditioner indoor unit;

[0032] Figure 3 is Figure 2 an enlarged view of portion A of

[0033] Figure 4 is Figure 1 a schematic cross-sectional view of the flow guide member of the wall-mounted air conditioner indoor unit shown in

[0034] Figure 5 is Figure 2 a schematic view of the wall-mounted air conditioner indoor unit shown in when operating in the downward air supply mode

[0035] Figure 6 is Figure 2 a schematic view of the wall-mounted air conditioner indoor unit shown in when operating in the maximum air supply mode

[0036] Figure 7 a schematic view of the driving mechanism of the flow guide member Detailed implementation manners

[0037] The following will refer to Figures 1 to 7 to describe the wall-mounted air conditioner indoor unit according to an embodiment of the present invention. Among them, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. Arrows in the drawings indicate the flow direction of the air flow

[0038] The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included

[0039] Unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances

[0040] An embodiment of the present invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is the indoor part of a split wall-mounted room air conditioner, and is used to adjust indoor air, such as refrigeration / heating, dehumidification, introducing fresh air, and so on.

[0041] Figure 1 It is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; Figure 2 is Figure 1 a schematic enlarged sectional view of the wall-mounted air conditioner indoor unit shown; Figure 3 is Figure 2 an enlarged view of part A of Figure 4 is Figure 1 a schematic cross-sectional view of the flow guide member of the wall-mounted air conditioner indoor unit shown. For clarity, Figure 1 only the overall structure of the wall-mounted air conditioner indoor unit is schematically shown, and the micropores of the flow guide member 30 are not schematically shown.

[0042] As Figures 1 to 3 shown, the wall-mounted air conditioner indoor unit of the embodiment of the present invention generally may include a housing 10 and a flow guide member 30.

[0043] A horizontally extending long strip-shaped first air outlet 11 is formed on the front side of the housing 10. The housing 10 is in the shape of a long strip extending in the horizontal direction for hanging on an indoor wall. The horizontal direction of the housing 10 is also its length direction, which is represented by x in the figure. A wind channel 15 connecting the first air outlet 11 is formed inside the housing 10. The housing 10 described in this embodiment includes a skeleton for forming the basic framework of the indoor unit and body components such as a volute and a volute tongue for defining the wind channel 15, and is not a pure air conditioner housing. The first air outlet 11 is used to blow the air flow in the housing 10 into the room to adjust the indoor air. The aforementioned air flow may be the cold air produced by the wall-mounted air conditioner indoor unit in the refrigeration mode, the hot air produced in the heating mode, or the fresh air introduced in the fresh air mode, etc. At a position near the first air outlet 11, the distance between the upper wall 151 (specifically, its ba section) and the lower wall 152 (specifically, its ed section) of the wind channel 15 gradually becomes smaller along the air flow direction, forming a tapered section of the wind channel 15, as Figure 2 . In other words, at a position near the first air outlet 11, along the air flow direction, the cross-sectional area of the wind channel 15 gradually becomes smaller.

[0044] The flow guide member 30 is rod-shaped and parallel to the length direction (x-direction) of the first air outlet 11. It is arranged in the air duct 15 and defines air outlet gaps 154 and 155 with the upper wall 151 (section sa thereof) and the lower wall 152 (section ed thereof) respectively, and is used to guide the air flow blowing towards the first air outlet 11 to the upper wall 151 and the lower wall 152 of the air duct 15, so that the air flow gradually converges towards the center of the air flow and flows out of the first air outlet 11 under the guidance of the tapered section (defined by section ba of the upper wall and section ed of the lower wall) of the air duct 15.

[0045] Due to the addition of the flow guide member 30, the flow cross-sections of the air outlet gaps 154 and 155 are necessarily smaller than the flow cross-section of the original air duct 15, which makes the air flow velocity faster. Under the guidance of the tapered section of the air duct 15, the high-speed air flow gradually converges towards the center direction of the air flow during the outward flow process, forming a converging effect, making the wind force very strong, the air supply distance farther, meeting the requirements of the wall-mounted air conditioner indoor unit for long-distance air supply and strong air supply, also making the air supply range larger, making the cooling / heating speed more uniform throughout the indoor space, and making the human body feel more comfortable.

[0046] In the embodiment of the present invention, the flow guide member 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, playing a role in increasing the wind speed, but also can exactly guide the air flow to the air outlet gaps 154 and 155, or rather, force the air flow to flow towards the air outlet gaps 154 and 155, so as to force the air flow to accept the converging guidance of the tapered section of the air duct 15 and form the final converging air supply effect. The embodiment of the present invention realizes a very good converging air supply effect only by improving the air duct 15 and adding a flow guide member 30. Its structure is very simple, the cost is low, it is easy to realize mass production and promotion, and the concept is very ingenious.

[0047] The inventor found that since the flow guide member 30 is located at the outlet of the air duct 15, it is directly blown by the cold air during air conditioning refrigeration, and the temperature is relatively low. The water vapor in the air is easy to condense on its surface when it meets cold, generating condensation. Moreover, the cold air flows through the upper and lower ends of the flow guide member 30 and then converges at a certain distance in front of the flow guide member 30, but there is no air flow blowing through the front surface of the flow guide member 30 and its adjacent area, which is easy to generate eddy currents, resulting in condensation on the front surface of the flow guide member 30. For this reason, in the embodiment of the present invention, the flow guide member 30 is provided with an air flow channel that penetrates its front and rear surfaces from front to back, so as to lead a part of the air flow in the casing 10 to the front side of the flow guide member 30 ( Figure 2 The hollow arrow indicates this part of the air flow), so that the eddy currents in the adjacent area of the front surface of the flow guide member 30 are scattered, forming a disturbed flow field, and further making it impossible for the front surface of the flow guide member 30 to effectively form and accumulate condensation, avoiding large condensation from dripping onto the indoor environment and affecting the user experience.

[0048] In some embodiments, such as Figure 2 andFigure 3 As shown, the guide member 30 is a hollow structure, and a plurality of micropores 302 are provided on the front and rear surfaces thereof to connect to the internal cavity 301 of the guide member 30, and each micropore 302 and the cavity 301 together constitute the aforementioned airflow channel. Each micropore 302 is a circular hole for easy processing. It is preferred to make them evenly distributed on the outer surface of the guide member 30, but they can also be arranged unevenly. The diameter of the micropores 302 is preferably less than 1 cm, and further preferably less than 0.5 cm. The opening rate of the guide member 30 (total area of ​​all holes / total area of ​​the outer surface of the guide member) is preferably between 30% and 60%, so as to avoid condensation and prevent excessive airflow from flowing out here to affect the normal aggregation guiding function of the guide member 30.

[0049] In other embodiments of the present invention, the guide member 30 may be a solid structure and provided with a plurality of ventilation holes running through its front and rear surfaces, and the ventilation holes constitute the aforementioned airflow channel. The opening ratio of the guide member 30 (total area of ​​all ventilation holes / total area of ​​the outer surface of the guide member) is preferably between 30% and 60%. The ventilation holes are preferably round holes for easy processing. The diameter thereof is preferably less than 1 cm, and further preferably less than 0.5 cm, so as to avoid condensation and prevent excessive airflow from flowing out from here from affecting the normal function of the guide member 30 in terms of its aggregation and guiding function.

[0050] In some embodiments, reference Figures 2 to 4 The cross-section of the guide member 30 (the section plane extending along the front-to-back direction cutting the guide member 30) has an outer contour of an "olive shape" with two upper and lower pointed ends and two front and rear convex curved shapes. The rearward convex curved surface of the guide member 30 is very helpful in splitting the airflow into two streams and guiding them upward and downward respectively, which makes the guidance smoother and reduces the airflow resistance. The convex curved surface of the guide member 30 protruding forward can guide the airflow in the vicinity to flow in conformity with the surface so as to gradually converge toward the center thereof, so as to exert a convergence effect on the airflow together with the tapered inner wall of the air duct 15, thereby enhancing the airflow convergence effect. The guide member 30 is a hollow structure, and its front and rear convex curved surfaces (front surface and rear surface) are respectively provided with a plurality of micropores 302.

[0051] The section (i.e., section as) of the upper wall 151 of the air duct 15 used to define the air outlet gap 154 ​​is a curved section with the concave side facing downward, which can be arc-shaped or formed by connecting multiple arc-shaped sections, and has a front end point a, a highest point b, and a rear end point s, which surrounds the air guide 30 above the air guide 30. The section (i.e., section de) of the lower wall 152 of the air duct 15 used to define the air outlet gap 155 is a concave curved section extending gradually upward from the back to the front, and is located in the front and lower part of the air guide 30. In this way, the air outlet gap 154 ​​and the air outlet gap 155 are both curved, or further arc-shaped, so that the air flow direction changes more smoothly and the air flow resistance is reduced.

[0052] In some embodiments, referring to Figure 2 and Figure 3 , the projections of the upper edge a and the lower edge d of the first air supply opening onto the flow guide member 30 (a0 and d0 respectively) fall on the flow guide member 30 rather than outside the flow guide member 30. The projection direction is shown by the dashed hollow arrow in Figure 3 . Moreover, since the projections a0 and d0 of the upper edge a and the lower edge d of the first air supply opening 11 onto the flow guide member 30 fall on the flow guide member 30. That is, the dimension of the flow guide member 30 in the vertical direction is relatively larger, so that the downwardly inclined portion of the air outlet gap 154 formed between the flow guide member 30 and the upper wall 151 of the air duct 15 is longer, and the upwardly inclined portion of the air outlet gap 155 formed with the lower wall 152 is longer, so as to more powerfully guide the air flow to incline downward and upward respectively, and converge in front of the flow guide member 30 with greater wind force, making the air supply distance farther.

[0053] In some embodiments, referring to Figure 4 , the outer contour of the cross-section of the flow guide member 30 may include a front arc segment 31 and a rear arc segment 32. The top and bottom ends of the two are connected by a rounded corner 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, and thus its distance from the upper wall 151 is smaller, and the front arc segment 31 is relatively flatter, so that its distance from the upper wall 151 is larger, which is conducive to the air flow flowing through the air outlet gap 154 more smoothly. Of course, in some alternative embodiments, the radius of the front arc segment 31 may also be equal to or less than the radius of the rear arc segment 32. In some other alternative embodiments, the front arc segment 31 and / or the rear arc segment 32 may be formed by connecting multiple arc segments, which will not be elaborated here.

[0054] Referring to Figure 3 and Figure 4 , let the radius of the front arc segment 31 be R1, the radius of the rear arc segment 32 be R2, and the distance between the top and bottom ends of the flow guide member 30 be H, satisfying: 0.5 ≤ R1 / H ≤ 0.8, 0.5 ≤ R2 / H ≤ 0.8, and further satisfying 0.3 ≤ R1 / H ≤ 0.6, 0.3 ≤ R2 / H ≤ 0.6. In this way, the width (the maximum dimension in the vertical direction) of the flow guide member 30 and the curvature of the front and rear surfaces are more coordinated, so as to achieve the effect of balancing the air guiding effect and the flow resistance.

[0055] In some embodiments, as shown in Figure 3 , let the distance between the top and bottom ends of the flow guide member 30 be H, and the width of the first air supply opening 11 be h. The relationship between the two satisfies: 4 mm ≤ H - h ≤ 10 mm, and further satisfies 6 mm ≤ H - h ≤ 8 mm, so that the downwardly inclined portion of the air outlet gap 154 formed between the flow guide member 30 and the upper wall 151 of the air duct and the upwardly inclined portion of the air outlet gap 155 formed with the lower wall 152 are not too long, thus avoiding an increase in air flow resistance.

[0056] As shown Figure 3 in the figure, the closest distance between the outer surface of the flow guide member 30 and the upper wall 151 is d1, and the closest distance between the outer surface of the flow guide member 30 and the lower wall 152 is d3. Preferably, 1.5d1 ≤ d3 ≤ 2d1, and further 1.7d1 ≤ d3 ≤ 1.9d1, so that the gap between the flow guide member 30 and the lower wall 152 of the air duct is larger and the air volume is larger, while the gap with the upper wall 151 of the air duct is smaller and the air volume is smaller. In this way, the upward air guiding force of the lower wall 152 is greater than the downward air guiding force of the upper wall 151, so that the two airflows converge and gather and then flow upward as a whole. Figure 2 The air flow direction is indicated by arrows for reference. In the refrigeration mode, the upward flowing cold air can fully avoid the human body, and then fall downward after reaching the highest point, realizing a "shower-type" refrigeration experience. Moreover, the upward blowing of the air flow is also beneficial to increasing its air supply distance.

[0057] In addition, the upward air flow angle of the air flow at the air outlet gap 155 of the lower wall 152 can also be made greater than the downward air flow angle of the air flow at the air outlet gap 154 of the upper wall 151, so that the air flow at the air outlet gap 155 drives the air flow at the air outlet gap 154 to flow upward and forward together.

[0058] Please refer to Figure 3 , the width of the first air outlet 11 is h. The inventor found through multiple tests that the relationship between d1 and h has a great influence on the air supply distance. When 0.15h ≤ d1 ≤ 0.25h is satisfied, and further 0.18h ≤ d1 ≤ 0.22h, the air supply distance is relatively large.

[0059] In some embodiments, as Figure 2 shown, the bottom wall of the housing 10 is provided with a second air outlet 12 that opens downward and is connected to the air duct 15. In this way, air can be supplied downward from the second air outlet 12 to directly below the wall-mounted air conditioner indoor unit. In the heating mode, downward air supply is more conducive to accelerating the temperature rise speed of the lower space of the house, enabling people to feel the heating effect faster.

[0060] To be connected to the first air outlet 11 and the second air outlet 12, the air duct 15 includes the aforementioned upper wall 151 (ak), lower wall 152 (de), and rear wall 153 (fg). Among them, the front end (a) of the upper wall 151 and the front end (d) of the lower wall 152 define the first air outlet 11. The rear end (e) of the lower wall 152 and the lower end (f) of the rear wall 153 define the second air outlet 12. The upper wall 151 (section k) and the rear wall (end g) together define the inlet of the air duct 15. The cross-flow fan 50 is located at the inlet of the air duct 15. The rear wall 153 is the volute of the cross-flow fan, and as a whole, it can be a curved structure with the concave side facing forward.

[0061] Please refer to Figure 2, a wind deflector 60 is provided at the second air outlet 12. The wind deflector 60 is rotatably mounted on the housing 10 for opening or closing the second air outlet 12 and guiding the air supply direction of the second air outlet 12. In addition, a wind guiding mechanism such as a swing blade assembly may also be installed at the second air outlet 12. The rear wall 153 is the volute of the cross-flow fan, specifically a curved structure with the concave side facing forward; the section (sck) of the upper wall 151 except for the as section is the volute tongue of the cross-flow fan. It includes a kc section extending backward and downward and a cs section extending forward and downward. And the inclination angle of the cs section is θ, preferably making θ≥25°, so as to facilitate guiding the air flow obliquely downward and facilitating hot air supply.

[0062] When the wind deflector 60 is in the closed state, as Figure 2 , the distance between the bottom end of the deflector 30 and the upper surface of the wind deflector 60 is d2, and the air flow passes through this interval and flows to the air outlet gap 155. Preferably, 1.5d1≤d2≤2d1, so that more air flow enters the air outlet gap 155, making the upward air guiding force of the lower wall 152 greater than the downward air guiding force of the upper wall 151, and making the two air flows converge and gather and then flow upward as a whole.

[0063] Figure 5 is Figure 2 a schematic diagram of the wall-mounted air conditioner indoor unit shown when operating in the downward air supply mode; Figure 6 is Figure 2 a schematic diagram of the wall-mounted air conditioner indoor unit shown when operating in the maximum air supply mode.

[0064] In some embodiments, as Figure 5 and Figure 6 shown, the deflector 30 can be configured to be movable back and forth to adjust the sizes of the air outlet gaps 154 and 155. Specifically, the air outlet gaps 154 and 155 can be enlarged by moving the deflector 30 backward to increase the wind force, accelerate the cooling / heating speed and extend the air supply distance; the air outlet gaps 154 and 155 can be reduced by moving the deflector 30 forward to reduce the wind force, simulate natural wind and make the air flow more comfortable. And the forward and backward movement of the deflector 30 also facilitates closing the first air outlet 11. At this time, the air flow in the housing 10 is blown out through the micropores 302 of the deflector 30, forming a kind of gentle wind effect, making people feel more comfortable.

[0065] Thus, the embodiment of the present invention has the following three air supply modes for users to choose from, specifically as follows:

[0066] Forward converging air supply mode: As Figure 2As shown, the deflector 30 is located behind the first air outlet 11, the air deflector 60 closes the second air outlet 12, and the air is aggregated and sent upward from the first air outlet 11, so that the air flow avoids the human body, and then scatters downward after reaching the highest point, realizing a "shower-style" cooling experience. When the air conditioner operates in the cooling mode, it can be sent according to the aggregated air supply mode.

[0067] Downward air supply mode: As Figure 5 shown, control the deflector 30 to move forward to close the first air outlet 11, open the air deflector 60 to open the second air outlet 12, and under the guidance of the air deflector 60, send air downward from the second air outlet 12. When the air conditioner operates in the heating mode, it can be sent according to the downward air supply mode to facilitate accelerating the heating speed.

[0068] Maximum air supply mode: As Figure 6 shown, the deflector 30 is located behind the first air outlet 11, the air deflector 60 opens the second air outlet 12, the air is aggregated and sent upward from the first air outlet 11, and under the guidance of the air deflector 60, it is sent forward and downward from the second air outlet 12. When the air conditioner operates in the cooling or heating mode, the maximum air supply mode can be selected.

[0069] Gentle air supply mode: Control the deflector 30 to move forward to close the first air outlet 11, close the air deflector 60 to close the second air outlet 12, so that all the air flows through the air flow channel of the deflector 30, such as the micropores 302, and blows out to form a gentle breeze, making the human body feel more comfortable.

[0070] It should be noted that in the foregoing embodiments, the dimensional relationships between the deflector 30 and the upper wall 151 and the lower wall 152 of the air duct 15, etc., are all based on the state where the deflector 30 opens the first air outlet 11 (as Figure 2 ).

[0071] Figure 7 It is a schematic diagram of the driving mechanism of the deflector.

[0072] In some embodiments, as Figure 7 shown, the driving mechanism for driving the deflector 30 to move back and forth is a rack and pinion mechanism, which is installed on the lateral side of the casing 10 so as not to affect the air flow. The driving mechanism includes a rack 71 extending in the front-rear direction and fixed to the deflector 30, a pinion 72 meshing with the rack 71, and a motor 73 for driving the pinion 72 to rotate to drive the rack 71 to move back and forth. The motor 73 can be fixed to the casing 10, and the rack 71 can be slidably mounted on the casing 10 in the front-rear direction. The motor 73 can be controlled to rotate forward and backward so that the deflector 30 can reciprocate back and forth in the front-rear direction. The motor 73 can be a stepper motor.

[0073] As Figure 2As shown, the indoor unit of the wall-mounted air conditioner according to an embodiment of the present invention can be the indoor unit of an air conditioner that performs refrigeration / heating through a vapor compression refrigeration cycle system, and it further includes a heat exchanger 40 and a blower 50. The heat exchanger 40 is disposed in the housing 10 and is used for exchanging heat with the air flow passing through it to form a heat exchange air flow, that is, cold air or hot air, and it can be a three-section fin heat exchanger. The blower 50 is disposed in the housing 10 and is used to urge indoor air to enter the housing 10 through the air inlet 13 at the top of the housing 10, so that it exchanges heat with the heat exchanger 40 to become a heat exchange air flow, and then urges the heat exchange air flow to flow through the air duct 15 to the first air outlet 11 and the second air outlet 12, and finally blows from the first air outlet 11 and the second air outlet 12 into the room.

[0074] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that Comprising: A casing, with a long strip-shaped first air outlet extending horizontally opened on the front side, and an air duct formed inside and connected to the first air outlet. At a position near the first air outlet, the distance between the upper wall and the lower wall of the air duct gradually decreases along the air flow direction, forming a tapered section; And A flow guide member, which is rod-shaped parallel to the length direction of the first air outlet, is arranged in the air duct and respectively defines an air outlet gap with the upper wall and the lower wall thereof, and is used for guiding the air flow blowing towards the first air outlet to the upper wall and the lower wall of the air duct, so that the air flow gradually converges towards the center of the air flow and flows out of the first air outlet under the guidance of the tapered section of the air duct; and The flow guide member is provided with an air flow channel penetrating through its front and rear surfaces from front to back, so as to lead out part of the air flow in the casing to the front side of the flow guide member; The projections of the upper and lower edges of the first air outlet towards the flow guide member fall on the flow guide member; The cross-sectional outer contour of the flow guide member is an "olive shape" with two upper and lower tips and two front and rear outward convex curved shapes; The section of the upper wall of the air duct for defining the air outlet gap is a curved section with the concave side facing downwards, which surrounds the flow guide member above the flow guide member; and The section of the lower wall of the air duct for defining the air outlet gap is an inward concave curved section that gradually extends upward from back to front, and is located in front of and below the flow guide member; The closest distance between the outer surface of the flow guide member and the upper wall of the air duct is d1, and the closest distance from the lower wall of the air duct is d3. The width of the first air outlet is h, satisfying: 1.5d1 ≤ d3 ≤ 2d1; 0.15h ≤ d1 ≤ 0.25h.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The flow guide member is a hollow structure, and both its front surface and rear surface are provided with a plurality of micropores communicating with the internal cavity of the flow guide member, and each of the micropores and the cavity together constitute the air flow channel.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, Each of the micropores is a round hole and is evenly distributed on the outer surface of the flow guide member.

4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The flow guide member is a solid structure and is provided with a plurality of ventilation holes penetrating through its front and rear surfaces, and the ventilation holes constitute the air flow channel.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The cross-sectional outer contour of the flow guide member includes a front arc segment and a rear arc segment, and the top and bottom of the two are connected by a rounded corner transition; The radius of the front arc segment is R1, the radius of the rear arc segment is R2, and the distance between the top and bottom of the flow guide member is H, satisfying: 0.5 ≤ R1 / H ≤ 0.8, 0.5 ≤ R2 / H ≤ 0.

8.

6. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The bottom wall of the casing is provided with a second air outlet that opens downward and is connected to the air duct, and a wind guide plate is arranged at the second air outlet; The air duct includes the upper wall, the lower wall and the rear wall. The front ends of the upper wall and the lower wall define the first air outlet, the rear end of the lower wall and the lower end of the rear wall define the second air outlet, and the upper wall and the rear wall define the inlet of the air duct.

7. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The flow guide member is configured to be movable back and forth, so as to adjust the size of the air outlet gap and facilitate closing the first air outlet.

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