Wall-mounted air conditioner indoor unit

Abstract

The present invention provides a wall-mounted air conditioner indoor unit, comprising a housing, the housing including a partition bar and a volute and a volute arranged in a front-to-back arrangement. The partition bar is located below the front end of the volute and in front of the lower end of the volute, thereby defining an air outlet duct together with the volute and the volute. The partition bar and the front end of the volute define a first air outlet facing forward, while the partition bar and the lower end of the volute define a second air outlet facing downward. The rear end of the partition bar is formed with a rearward-facing wedge portion, which is configured to split the airflow directed toward it into two upper and lower streams, respectively, flowing forward from the upper and lower sides of the partition bar. The wall-mounted air conditioner indoor unit of the present invention can deliver air forward and downward, has reduced air outlet resistance, and can prevent condensation at the air outlet.

Description

Technical Field

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

[0002] The existing wall-mounted air conditioner indoor unit is usually provided with a long strip air outlet at the lower front part of the casing, the air outlet is oriented to the front and bottom, and an air guide plate is provided at the air outlet to guide the upward and downward air supply direction.

[0003] On this basis, some existing technologies have made many improvements to the air outlet structure. However, due to the constraints 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 the above-mentioned problems or at least partially solve the above-mentioned problems, and to provide a wall-mounted air-conditioning indoor unit that can supply air forward and downward and has smaller air outlet resistance.

[0005] Another object of the present invention is to prevent condensation from forming at the air outlet.

[0006] In particular, the present invention provides a wall-mounted air conditioner indoor unit, which includes a casing, the casing including a partition bar and a volute and a volute arranged in front and behind, the partition bar is located below the front end of the volute and in front of the lower end of the volute, so as to define an air outlet together with the volute and the volute, the partition bar and the front end of the volute define a first air supply port facing forward, and the partition bar and the lower end of the volute define a second air supply port facing downward; and

[0007] The rear end of the partition strip is formed with a rearward pointed split portion, which is configured to split the air flow blowing thereto into two streams, one above the other, so as to flow forward from the upper and lower sides of the partition strip respectively.

[0008] Optionally, near the first air outlet, the distance between the volute tongue and the partition strip gradually decreases along the airflow direction, forming a tapered section of the air duct; and

[0009] The wall-mounted air-conditioning indoor unit also includes a flow guide member, which is rod-shaped and parallel to the length direction of the first air supply outlet, is arranged in the air duct and defines an air outlet gap with the volute tongue and the dividing strip respectively, and is used to guide the airflow blowing toward the first air supply outlet to the volute tongue and the dividing strip, so that the airflow gradually flows out of the first air supply outlet in a convergent manner toward the center of the airflow under the guidance of the tapered section of the air duct.

[0010] Optionally, the rear section of the upper surface of the dividing strip constitutes the upper surface of the wedge portion; and

[0011] The rear section of the lower surface of the dividing strip extends from front to back along a fold line, a straight line or an arc line gradually approaching the upper surface of the dividing strip to the rear end of the upper surface of the dividing strip to form the wedge portion.

[0012] Optionally, the cross-sectional profile of the guide member is an "olive shape" with two upper and lower tips and two front and rear convex curves, and its upper tip is located above and in front of the lower tip, so that the rear surface of the guide member faces rearward and upward, and the front surface faces frontward and downward.

[0013] Optionally, the section of the volute tongue used to define the air outlet gap is a curved section with the concave side facing downward, which surrounds the guide member above the guide member; and

[0014] The upper surface of the dividing strip is in a concave curved shape that gradually extends upward from the rear to the front, and is located below the guide member.

[0015] Optionally, the snail tongue further comprises:

[0016] An inclined section, which is a straight line extending from the concave side of the volute tongue toward the rear end of the downward curved section and upward and backward; and

[0017] The inlet section is bent and extended forward and upward from the rear end of the inclined section.

[0018] Optionally, the upper surface of the dividing strip is an inwardly concave arc-shaped surface, and the front section of the lower surface is an outwardly convex arc-shaped surface.

[0019] Optionally, the line between the two tips of the guide member is its long axis, the axis perpendicular to the long axis and passing through the midpoint thereof is the short axis, and the angle α between the short axis and the horizontal plane satisfies: 5°≤α≤10°.

[0020] Optionally, an air guide plate is provided at the second air outlet, wherein the upward surface of the air guide plate is an air guide surface when in a closed state, and the downward surface is a non-air guide surface; and

[0021] The volute has an inwardly concave arc section near its lower end, so that when the air guide plate rotates to a state where the air guide surface faces forward and upward, the inwardly concave arc section guides the airflow to blow toward the non-air guide surface.

[0022] Optionally, a front section of the air guide plate is bent upward so as to guide the airflow toward the lower surface of the partition strip when the air guide plate is in an open state.

[0023] In the wall-mounted air conditioner indoor unit of the present invention, the first and second air supply outlets of the casing are separated by a partition bar, which can supply air forward and downward, making the air supply angle range larger and achieving the purpose of cold and warm distribution. That is, when the air conditioner is cooling, the first air supply outlet is used to deliver cold air forward to avoid blowing on people; when the air conditioner is heating, the second air supply outlet is used to deliver hot air downward to make it easier for the hot air to reach the ground. In addition, the present invention specifically forms a pointed wedge portion at the rear end of the partition bar, splitting the outlet air flow blown toward it into two upper and lower streams, so that they flow forward from the upper and lower sides of the partition bar respectively, making the partition bar less resistant to the outlet air flow, avoiding the problem of large wind resistance and noise caused by the provision of the partition bar. Moreover, since air also flows through the lower side of the partition bar, condensation will not be generated on the lower surface of the partition bar.

[0024] Furthermore, in the wall-mounted air-conditioning indoor unit of the present invention, the volute has a concave arc section near its lower end, so that when the air guide plate rotates to a state where the air guide surface faces forward and upward, the concave arc section guides the airflow to the non-air guide surface, thereby avoiding condensation on the non-air guide surface in the cooling mode.

[0025] Furthermore, in the wall-mounted air-conditioning indoor unit of the present invention, when the air guide plate is in a closed state, its front section bends upward so that when the air guide plate is in an open state, the airflow is directed to the lower surface of the dividing strip to avoid condensation on the lower surface of the dividing strip.

[0026] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0028] Figure 1 is a structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A schematic cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown;

[0030] Figure 3 yes Figure 2 Schematic diagram of the cross section of the middle separator;

[0031] Figure 4 2 is another schematic diagram of the structure of the separator;

[0032] Figure 5This is another schematic diagram of the implementation structure of the separator;

[0033] Figure 6 yes Figure 1 A schematic cross-sectional view of an air guide member of a wall-mounted air conditioner indoor unit is shown;

[0034] Figure 7 yes Figure 2 The schematic diagram of the wall-mounted air conditioner indoor unit shown is when operating in the forward convergent air supply mode;

[0035] Figure 8 yes Figure 7 The schematic diagram of the wall-mounted air conditioner indoor unit shown is after the air guide piece is moved forward;

[0036] Figure 9 yes Figure 2 The schematic diagram of the wall-mounted air conditioner indoor unit shown is when operating in the downward air supply mode;

[0037] Figure 10 yes Figure 2 The diagram shows a wall-mounted air conditioner indoor unit operating in maximum air supply mode. DETAILED DESCRIPTION

[0038] Refer to the following Figures 1 to 10 The following describes a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. Terms such as "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Arrows in the drawings illustrate the direction of airflow.

[0039] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the definition of "first", "second", etc. can explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0040] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," "coupled," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] 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 condition indoor air, such as cooling / heating, dehumidifying, introducing fresh air, etc.

[0042] Figure 1 is a structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic enlarged cross-sectional view of a wall-mounted air conditioner indoor unit is shown.

[0043] like Figure 1 and Figure 2 As shown, the wall-mounted air-conditioning indoor unit of the embodiment of the present invention may generally include a casing 10. The casing 10 includes a skeleton for constituting the basic frame of the indoor unit and body parts such as a volute and a volute tongue for defining the air outlet duct, and is not a pure air-conditioning shell. Specifically, in addition to the long strip-shaped skeleton part, the casing 10 also includes a partition bar 152 and a volute tongue 151 and a volute 153 arranged in front and behind. The partition bar 152 is located below the front end of the volute tongue 151 and in front of the lower end of the volute 153, so as to define an air duct 15 together with the volute tongue 151 and the volute 153. The air duct 15 is a cross-flow air duct. The partition bar 152 and the front end of the volute tongue 151 define a first air supply port 11 facing forward, and the partition bar 152 and the lower end of the volute 153 define a second air supply port 12 facing downward.

[0044] like Figure 1 As shown, the housing 10 can be in the shape of a long strip extending horizontally, with a roughly quadrilateral cross-section. The housing 10 can include a top wall, a front wall, a rear wall, a bottom wall, and two transverse end walls, with the rear wall being attached to and hung against a wall in the room. The transverse, or lengthwise, direction of the housing 10 is indicated by x in the figure. The first air outlet 11, the second air outlet 12, the partition bar 152, the volute tongue 151, and the volute 153 can all be in the shape of long strips with their lengths parallel to the lengthwise direction x of the housing 10.

[0045] The first air outlet 11 and the second air outlet 12 are used to blow air from the housing 10 into the room to condition the indoor air. The airflow can be cold air produced by the wall-mounted air conditioner in cooling mode, hot air produced in heating mode, or fresh air introduced in fresh air mode.

[0046] The wall-mounted indoor air conditioner unit can be an indoor unit of an air conditioner that uses a vapor compression refrigeration cycle system for cooling / heating, and further includes a heat exchanger 40 and a crossflow fan 50. The heat exchanger 40 is disposed within the housing 10 and is configured to exchange heat with the airflow passing therethrough, forming a heat exchange airflow, i.e., cool air or hot air. The heat exchanger 40 can be a three-stage fin heat exchanger. The crossflow fan 50 is disposed within the housing 10 and is located at the entrance of the air duct 20. It is configured to force indoor air into the housing 10 through the air inlet 13 at the top of the housing 10, exchange heat with the heat exchanger 40, and form a heat exchange airflow. The heat exchange airflow is then forced to flow through the air duct 20 to the first and second air supply ports 11, 12, and ultimately blown from the first and second air supply ports 11, 12 into the interior of the room.

[0047] Figure 3 yes Figure 2 Schematic diagram of the cross section of the middle separator.

[0048] like Figure 2 and Figure 3 As shown, the rear end of the dividing bar 152 is formed with a rearward-facing pointed portion 1520 , which is configured to split the outgoing air flow blowing thereto into two streams, one above the other, so as to flow forward from the upper and lower sides of the dividing bar 152 respectively.

[0049] In the wall-mounted air conditioner indoor unit according to an embodiment of the present invention, the first air supply vent 11 and the second air supply vent 12 can supply air forward and downward, thereby increasing the range of air supply angles and achieving heat and cold distribution. That is, when the air conditioner is cooling, the first air supply vent 11 is used to deliver cold air forward, thereby preventing it from blowing on people; and when the air conditioner is heating, the second air supply vent 12 is used to deliver hot air downward, thereby allowing the hot air to reach the ground more easily. A partition bar 152 is used to separate the first air supply vent 11 and the second air supply vent 12. In an embodiment of the present invention, the rear end of the partition bar 152 is formed with a pointed portion 1520, which splits the airflow directed thereto into two streams, one above and one below, so that the airflow flows forward from the upper and lower sides of the partition bar 152, respectively. This reduces the resistance of the partition bar 152 to the airflow. Furthermore, since air also flows under the partition bar 152, condensation will not occur.

[0050] In some embodiments, as Figure 2As shown, near the first air supply port 11, the distance between its volute 151 (specifically its ba segment) and the dividing strip 152 (ed segment) gradually decreases along the airflow direction, forming a tapered section of the air duct 15. In other words, near the first air supply port 11, the flow cross-section of the air duct 15 gradually decreases along the airflow direction. The wall-mounted air conditioner indoor unit also includes a flow guide 30. The flow guide 30 is rod-shaped and parallel to the length direction (x direction) of the first air supply port 11. It is arranged in the air duct 15 and defines air outlet gaps 154 and 155 with its volute 151 (sa segment) and the dividing strip 152 (ed segment) respectively. It is used to guide the airflow blowing toward the first air supply port 11 to the volute 151 and the dividing strip 152 of the air duct 15, so that the airflow gradually flows out of the first air supply port 11 in a convergent manner toward the center of the airflow under the guidance of the tapered section of the air duct 15.

[0051] Due to the addition of flow guide 30, the cross-sectional area of air outlet gaps 154 and 155 is necessarily smaller than that of the original air duct 15, resulting in a higher airflow velocity. Guided by the tapering section of air duct 15, the high-speed airflow gradually converges toward the center of the airflow as it flows outward, creating a convergence effect. This results in a very strong wind and a longer air delivery distance, meeting the requirements of long-range and powerful air delivery for wall-mounted indoor air conditioners. It also expands the air delivery range, achieving more uniform cooling / heating rates throughout the indoor space and enhancing human comfort.

[0052] In this embodiment of the present invention, the guide member 30 not only defines outlet gaps 154 and 155 with the volute 151 and the partition strip 152 of the air duct 15, thereby increasing air velocity, but also precisely directs the airflow toward the outlet gaps 154 and 155, or in other words, forces the airflow toward the outlet gaps 154 and 155, thereby forcing the airflow to be guided by the converging section of the air duct 15, thereby achieving a final convergent air supply effect. This embodiment of the present invention achieves an excellent convergent air supply effect simply by improving the air duct 15 and adding a guide member 30. Its structure is very simple, its cost is low, and it is easy to mass-produce and promote, demonstrating a very ingenious design.

[0053] Figure 4 2 is another schematic diagram of the structure of the separator; Figure 5 It is another schematic diagram of the implementation structure of the separator.

[0054] In some embodiments, as Figures 2 to 5As shown, the rear section of the upper surface 1521 of the dividing strip 152 constitutes the upper surface of the wedge portion 1520. In this way, the wedge portion 1520 does not destroy the integrity of the upper surface 1521 of the dividing strip 152, so that the upper surface 1521 of the dividing strip 152 can guide the air flow out from the first air outlet 11 more smoothly and with less resistance. The rear section 1523 of the lower surface of the dividing strip 152 extends from front to back along a broken line, a straight line or an arc, gradually approaching the upper surface 1521 of the dividing strip 152 to the rear end of the upper surface 1521 of the dividing strip 152, so as to form the wedge portion 1520. As shown Figure 3 and Figure 4 As shown, the rear section 1523 of the lower surface extends from front to back along the fold line to the rear end of the upper surface 1521. Figure 5 As shown, the rear section 1523 extends from front to rear along a straight line to the rear end of the upper surface 1521.

[0055] In some embodiments, the projections of the upper and lower edges of the first air outlet 11 toward the air guide 30 may also fall on the air guide 30. That is, the vertical dimension of the air guide 30 is made relatively larger, so that the downwardly inclined portion of the air outlet gap 154 formed by the air guide 30 and the volute tongue 151 of the air duct 15 is longer, and the upwardly inclined portion of the air outlet gap 155 formed by the air guide 30 and the partition bar 152 is longer, so as to more effectively guide the airflow downward and upward, respectively, and converge in front of the air guide 30 with greater wind force, thereby extending the air supply distance.

[0056] like Figure 2 As shown, in the embodiment of the present invention, the cross-section of the guide member 30 (the cross-section extending along the front-to-back direction cuts through the guide member 30) has an outer contour of an "olive shape" with two upper and lower tips and two front and back convex curves. The rearward convex curved surface of the guide member 30 is very conducive to splitting the airflow into two streams and guiding them upward and downward respectively, which makes the guidance smoother and reduces the airflow resistance. The forward convex curved surface of the guide member 30 can guide the airflow in the vicinity to flow in accordance with the surface, so as to gradually converge toward the center, thereby exerting a convergence effect on the airflow together with the tapered inner wall of the air duct 15, thereby improving the airflow convergence effect.

[0057] Furthermore, the upper tip of the air guide 30 is located above and forward of the lower tip, so that the rear surface of the air guide 30 faces upward and rearward, while the front surface faces downward and forward. This reduces the angle between the convergent airflow direction and the wind direction of the upstream air duct, making it easier for the airflow to turn to the convergent angle, reducing airflow resistance and increasing the convergent airflow volume.

[0058] Specifically, if Figure 2As shown, the line connecting the two tips of the deflector 30 is its major axis z, and the axis perpendicular to the major axis z and passing through its midpoint O is its minor axis y. The angle α between the minor axis y and the horizontal plane satisfies the following conditions: 5°≤α≤10°, preferably 6°≤α≤8°. α is the angle at which the deflector 30 tilts forward from its vertical position (with the upper tip directly above the lower tip). Limiting the angle α to this range can, on the one hand, reduce airflow resistance and increase the volume of the aggregated airflow; on the other hand, it can prevent the upward airflow angle from being affected by excessive downward tilt of the deflector 30.

[0059] like Figure 2 As shown, the section (segment as) of the volute tongue 151 of the air duct 15 that defines the air outlet gap 154 is a curved section with the concave side facing downward. It can be arc-shaped or formed by connecting multiple arc-shaped sections, with a front end point a, a highest point b, and a rear end point s. It surrounds the air guide 30 above the air guide 30. The upper surface 1521 of the dividing bar 152 of the air duct 15 is an inwardly concave curved surface that extends gradually upward from the back to the front. It is located in the front and lower part of the air guide 30. In this way, the air outlet gaps 154 and 155 are both curved or further arc-shaped, making the airflow direction change smoother and reducing airflow resistance. Preferably, the upper surface 1521 of the dividing bar 152 is a concave arc surface, and the front section 1522 of the lower surface is a convex arc surface.

[0060] In some embodiments, as Figure 2 As shown, the volute tongue 151 of the air duct 15 also includes an inclined section (sc section) and an inlet section (ck section). The inclined section (sc section) is a straight line extending from the rear end of the downwardly curved section (as section) on the concave side of the volute tongue 151 to the rear and upward. The inlet section (ck section) bends and extends forward and upward from the rear end of the inclined section (sc section). The inclined section (sc section) and the inlet section (ck section) of the volute tongue 151 are equivalent to the volute tongue of a traditional cross-flow air duct. The angle between the short axis y and the inclined section (sc section) is satisfy: Preferred satisfaction This reduces the angle between the converged airflow direction and the wind direction of the upstream duct (i.e., the inclined section), making it easier for the airflow to turn to the converged angle, reducing airflow resistance and increasing the converged airflow volume. Furthermore, the inclined section (sc section) has an inclination angle of θ, preferably ≥ 25°, to facilitate diagonal downward guidance of the airflow, facilitating heating and air output.

[0061] Figure 6 yes Figure 1 Schematic diagram of the cross section of the air guide member of the wall-mounted air conditioner indoor unit.

[0062] In some embodiments, reference Figure 6The cross-sectional outer contour of the air guide 30 can include a front arc segment 31 and a rear arc segment 32. The top and bottom ends of the two segments are transitionally connected by a rounded corner r. The radius of the front arc segment 31 can be made larger than the radius of the rear arc segment 32, so that the rear arc segment 32 is relatively more convex, thereby reducing the distance between the rear arc segment 32 and the volute tongue 151. The front arc segment 31 can be made relatively flatter, so that the distance between the rear arc segment 32 and the volute tongue 151 is larger, thereby facilitating smoother airflow through the outlet gap 154. Of course, in some alternative embodiments, the radius of the front arc segment 31 can be 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 can be formed by connecting multiple arc segments. The details will not be repeated here.

[0063] refer to Figure 6 The radius of the front arc segment 31 is R1, the radius of the rear arc segment 32 is R2, and the distance between the top and bottom ends of the air guide 30 is H, satisfying the following: 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. This ensures that the width (maximum vertical dimension) of the air guide 30 is more coordinated with the curvature of the front and rear surfaces, achieving a balanced air guiding effect and flow resistance.

[0064] like Figure 2 As shown, an air guide plate 60 is provided at the second air outlet 12. The air guide plate 60 is rotatably mounted on the housing 10 to open or close the second air outlet 12 and guide the air supply direction of the second air outlet 12. In addition, an air guide mechanism such as a swing blade assembly can also be installed at the second air outlet 12.

[0065] Figure 7 yes Figure 2 The schematic diagram of the wall-mounted air conditioner indoor unit shown is when operating in the forward convergent air supply mode; Figure 8 yes Figure 7 The schematic diagram of the wall-mounted air conditioner indoor unit shown is after the air guide piece is moved forward; Figure 9 yes Figure 2 The schematic diagram of the wall-mounted air conditioner indoor unit shown is when operating in the downward air supply mode; Figure 10 yes Figure 2 The diagram shows a wall-mounted air conditioner indoor unit operating in maximum air supply mode.

[0066] In some embodiments, as Figure 8 and Figure 9 As shown, the guide member 30 can be configured to move forward and backward to adjust the size of the air outlet gaps 154 and 155. Specifically, the air outlet gaps 154 and 155 can be enlarged by moving the guide member 30 backward to increase the wind force, speed up the cooling / heating speed and extend the air supply distance. Figures 8 and 9The air outlet gaps 154 and 155 can also be adjusted to reduce wind force by moving the air guide 30 forward, simulating natural wind and making the airflow more comfortable. Furthermore, the forward and backward movement of the air guide 30 also facilitates closing the first air outlet 11. The drive mechanism for driving the forward and backward translation of the air guide 30 is a rack and pinion mechanism, and its details will not be repeated here. Therefore, this embodiment of the present invention provides the following three air supply modes for users to choose from, as follows:

[0067] Forward convergent air supply mode: Figure 2 As shown, the guide member 30 is positioned behind the first air outlet 11, and the air guide plate 60 closes the second air outlet 12. Air is then directed upward from the first air outlet 11, avoiding the human body. After reaching its highest point, the air is dispersed downward, creating a "shower-like" cooling experience. When the air conditioner is operating in cooling mode, air can be delivered in the convergent air supply mode.

[0068] Downward air supply mode: Figure 9 As shown, the guide member 30 is controlled to move forward to close the first air supply port 11, so that the guide plate 60 opens the second air supply port 12. Under the guidance of the guide plate 60, air is supplied downward from the second air supply port 12. When the air conditioner is operating in heating mode, air can be supplied in a downward air supply mode to speed up the heating process. In this mode, the guide plate 60 can be placed in a vertically extended state, with its end adjacent to the volute tongue 151, to guide the supply air flow to bend downward and flow toward the second air supply port. After the air flow enters the air duct 15, the cross-section gradually increases to achieve pressure expansion. After being acted upon by the guide plate 60, it turns vertically downward and then passes through the tapered channel defined by the guide plate 60 and the volute 153 of the air duct 15 to achieve acceleration before outflow. Finally, the heating air supply has a large air volume, high wind speed, and vertical wind direction, which is conducive to the hot air reaching the ground directly, and a good carpet-style air supply effect.

[0069] Maximum air supply mode: Figure 10 As shown, the air guide 30 is positioned behind the first air outlet 11, and the air guide plate 60 opens the second air outlet 12. Air is directed upward from the first air outlet 11, and then, guided by the air guide plate 60, is directed forward and downward from the second air outlet 12. The maximum air supply mode can be selected when the air conditioner is operating in cooling or heating mode.

[0070] In some embodiments, the wall-mounted air conditioner indoor unit also has Figure 7 and Figure 8 The cooling and condensation removal mode is shown.

[0071] Specifically, when the wind deflector 60 is in the closed state, the upward surface is the wind deflecting surface 61, and the downward surface is the non-wind deflecting surface 62. Figure 2The volute 153 has an inwardly concave arc section 1531 (fh section) near its lower end, which is preferably in the shape of a circular arc, so that when the wind guide plate 60 rotates to the state where the wind guide surface 61 faces forward and upward, the inwardly concave arc section 1531 guides the airflow to the non-wind guide surface 62, as shown in FIG. Figure 7 、 Figure 8 In this way, during cooling operation, the air guide plate 60 can be rotated to open a preset angle, for example Figure 7 30° or Figure 8 The 15° angle shown ensures airflow not only on the air-guiding surface 61 but also on the non-air-guiding surface 62, preventing condensation from forming on either side of the air deflector 60. Furthermore, when the air deflector 60 is closed, its front section is curved upward. Specifically, the entire section can be arc-shaped, or only the front section can be curved. Thus, when the air deflector 60 is open, the curved front section of the air deflector 60 directs airflow toward the lower surface of the divider 152, preventing condensation from forming on the lower surface of the divider 152.

[0072] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of 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 deemed to cover all such other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that The machine comprises a casing, the casing comprising a partition bar and a volute and a volute arranged in front and behind, the partition bar being located below the front end of the volute and in front of the lower end of the volute to define an air outlet together with the volute and the volute, the partition bar and the front end of the volute defining a first air supply port facing forward, and the partition bar and the lower end of the volute defining a second air supply port facing downward; and The rear end of the partition strip is formed with a rearward-facing pointed wedge portion, which is configured to split the outflow airflow blowing thereto into two upper and lower streams, so as to flow forward from the upper and lower sides of the partition strip respectively; The wall-mounted air conditioner indoor unit further includes an air guide member, which is in the shape of a rod parallel to the length direction of the first air supply outlet, is disposed in the air duct and defines an air outlet gap with the volute tongue and the partition bar, respectively, and is used to guide the airflow blowing toward the first air supply outlet to the volute tongue and the partition bar, so that the airflow is guided by the tapered section of the air duct and gradually flows out of the first air supply outlet toward the center of the airflow; The cross-sectional profile of the deflector is an "olive shape" having two upper and lower tips and two front and rear convex curved shapes, with the upper tip located above and in front of the lower tip, so that the rear surface of the deflector faces rearward and upward, and the front surface faces frontward and downward; The section of the volute tongue used to define the air outlet gap is a curved section with the concave side facing downward, which surrounds the guide member above the guide member; and The upper surface of the dividing strip is in a concave curved shape that gradually extends upward from the back to the front, and is located below the guide member; The line connecting the two tips of the guide member is its long axis, the axis perpendicular to the long axis and passing through the midpoint thereof is its short axis, and the angle α between the short axis and the horizontal plane satisfies: 5°≤α≤10°; The volute tongue of the air duct also includes an inclined section, which is a straight line extending backward and upward from the rear end of the downward curved section of the concave side of the volute tongue, and the angle between the short axis and the inclined section is selected from any value between 15° and 20°.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: Near the first air supply port, the distance between the volute tongue and the dividing strip gradually decreases along the airflow direction, forming a tapering section of the air duct.

3. The wall-mounted air conditioner indoor unit according to claim 2, wherein: The rear section of the upper surface of the dividing bar constitutes the upper surface of the wedge; and The rear section of the lower surface of the dividing strip extends from front to back along a fold line, a straight line or an arc line gradually approaching the upper surface of the dividing strip to the rear end of the upper surface of the dividing strip to form the wedge portion.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The snail tongue also includes: An inclined section, which is a straight line extending from the concave side of the volute tongue toward the rear end of the downward curved section and upward and backward; and The inlet section is bent and extended forward and upward from the rear end of the inclined section.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: The upper surface of the dividing strip is an inwardly concave arc surface, and the front section of the lower surface is an outwardly convex arc surface.

6. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The second air outlet is provided with an air guide plate, wherein the upward surface of the air guide plate is an air guide surface when in a closed state, and the downward surface is a non-air guide surface; and The volute has an inwardly concave arc section near its lower end, so that when the air guide plate rotates to a state where the air guide surface faces forward and upward, the inwardly concave arc section guides the airflow to blow toward the non-air guide surface.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: The front section of the air guide plate is bent upward so as to guide the air flow toward the lower surface of the partition bar when the air guide plate is in an open state.

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