Air conditioner indoor unit and air conditioner unit
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
Smart Images
Figure CN224316288U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of air conditioning unit technology, and in particular to an indoor air conditioning unit and an air conditioning system. Background Technology
[0002] Most current wall-mounted air conditioners use a single-duct structure, with air intake from the top of the unit and air outlet diagonally downwards from the front. This design has the following problems: when cooling in summer, the cold air blows directly on people, causing discomfort; when heating in winter, because the air guide plate cannot rotate much, the hot air does not travel far enough in the vertical direction and tends to rise to the top and accumulate, resulting in a situation where the temperature at the top of the room is higher and the temperature at the bottom is lower, which also reduces human comfort. Utility Model Content
[0003] The embodiments of this disclosure provide an indoor air conditioning unit and an air conditioning system that can optimize cooling and heating effects and improve comfort.
[0004] According to one aspect of this disclosure, an air conditioning indoor unit is provided, comprising:
[0005] The housing includes a top plate and a bottom plate. The top plate has a first air outlet for air outlet in cooling mode, and the bottom plate has a second air outlet for air outlet in heating mode.
[0006] A cross-flow fan blade is disposed within the housing, and the central axis of the cross-flow fan blade extends along a first direction of the housing; and
[0007] The air duct assembly includes an interconnected air duct housing and a volute tongue, which are spaced apart circumferentially along the cross-flow fan blades to form an air duct inlet and an air duct outlet on the circumferential sidewall of the air duct assembly. The air duct assembly is rotatable about a central axis to allow the indoor unit of the air conditioner to switch between an upper air outlet state in cooling mode and a lower air outlet state in heating mode.
[0008] In some embodiments, the duct assembly further includes two mounting cylinders coaxially spaced along a first direction, with the duct housing and the volute connecting between the two mounting cylinders.
[0009] In some embodiments, the indoor unit of the air conditioner further includes: a first air duct disposed on the inner side of the top plate and a second air duct disposed on the inner side of the bottom plate.
[0010] In the top air outlet state, the air duct outlet is connected to the first air outlet through the first guide air duct, the first air outlet is open, and the second air outlet is closed.
[0011] In the downward air outlet state, the air duct outlet is connected to the second air outlet through the second guide air duct, the second air outlet is open, and the first air outlet is closed.
[0012] In some embodiments, the housing includes a rear plate connected between a top plate and a bottom plate, and one of the first and second airflow ducts includes:
[0013] The first baffle, its first end connected to the top plate or bottom plate, and its second end abutting against the volute tongue in the airflow outlet state of the air guide duct where the first baffle is located; and
[0014] The second baffle has its first end connected to the top plate or the bottom plate, and the second baffle is located on the side of the first baffle near the rear plate along the second direction. The second end of the second baffle abuts against the air duct shell when the air is being discharged from the air duct where the first baffle is located. The second direction is perpendicular to the first direction.
[0015] In some embodiments, the first baffle includes:
[0016] A fixed baffle, the first end of which is connected to a top plate or a bottom plate; and
[0017] The movable baffle has a first end that is rotatably connected to the second end of the fixed baffle, with the rotation axis aligned with the first direction. The second end of the movable baffle is configured to abut against the volute tongue when air is being discharged through the air duct where the first baffle is located, and to abut against the second baffle when no air is being discharged through the air duct where the first baffle is located.
[0018] In some embodiments, at least one of the volute tongue, the movable baffle, and the duct housing includes: a guide plate and at least one branch plate, the branch plate being angularly connected to the side of the guide plate away from the airflow.
[0019] In some embodiments, the volute tongue includes: a first guide plate and at least one first branch plate, the first guide plate having its first end near the air duct outlet bent outwards, and the first branch plate being angularly connected to the side of the first guide plate away from the cross-flow fan blade; the movable baffle includes: a second guide plate and at least one second branch plate, the second branch plate being angularly connected to the side of the second guide plate away from the second baffle.
[0020] In the upward air outlet state, the first end of the first guide plate abuts against the second end of the second guide plate, and at least a portion of the first branch plate abuts against at least a portion of the second branch plate.
[0021] In some embodiments, the movable baffle includes a second guide plate and an extension plate, the extension plate being connected to a first end of the second guide plate and extending in the opposite direction to the second guide plate, the extension plate being configured to abut against the side of the fixed baffle away from the second baffle in the upward air outlet state for limiting.
[0022] In some embodiments, the housing includes a rear plate connected between a top plate and a bottom plate, and the other of the first and second airflow ducts includes:
[0023] The third baffle, with its first end connected to the bottom plate, and its second end abutting against the duct shell when the airflow from the duct is exiting; and
[0024] The fourth baffle has its first end connected to the bottom plate, and the fourth baffle is located on the side of the third baffle near the rear plate along the second direction. The second end of the fourth baffle abuts against the volute tongue when the air is being discharged from the air duct where the third baffle is located.
[0025] In some embodiments, the housing includes a rear plate connected between a top plate and a bottom plate. A first limiting member and a second limiting member are fixedly disposed inside the housing. The first limiting member is located on the side of the second airflow duct near the rear plate, and the second limiting member is located on the side of the second airflow duct away from the rear plate.
[0026] The duct shell includes: a third guide plate, a third branch plate and a fourth branch plate. The third branch plate and the fourth branch plate are both connected at an angle to the side of the third guide plate away from the cross-flow fan blade. The third branch plate is located in the area of the third guide plate near the duct inlet and is inclined toward the end of the third guide plate near the duct inlet. The fourth branch plate is located in the area of the third guide plate near the duct outlet.
[0027] In the upward air outlet state, the end of the third branch plate abuts against the first side of the first limiting member; in the downward air outlet state, the end of the fourth branch plate abuts against the top of the second limiting member, and the volute tongue abuts against the second side of the first limiting member.
[0028] In some embodiments, the housing includes a rear plate connected between a top plate and a bottom plate, a first air guide plate is rotatably provided at a first air outlet, and a second air guide plate is rotatably provided at a second air outlet.
[0029] In the upward air outlet state, the first air guide plate tilts upward relative to the first air outlet to form a front and upper air outlet, and the second air guide plate covers the second air outlet; in the downward air outlet state, the second air guide plate tilts downward relative to the second air outlet to form a rear and lower air outlet, and the first air guide plate covers the first air outlet.
[0030] In some embodiments, the first air guide plate is rotatably connected to one end of the first air outlet near the rear plate along a second direction, the second direction being perpendicular to the first direction.
[0031] In some embodiments, the housing includes a front panel connected between a top panel and a bottom panel, and the front panel is provided with an air inlet for indoor airflow to enter. The indoor unit of the air conditioner also includes a heat exchanger, which is disposed between the front panel and the air duct assembly along a second direction. The heat exchanger and the front panel are spaced apart to form a return air channel, and the second direction is perpendicular to the first direction.
[0032] In some embodiments, a first return air inlet is provided on the base plate, the first return air inlet is connected to the return air duct, and a third air guide plate is rotatably provided at the first return air inlet;
[0033] In the upward air outlet state, the third air guide plate tilts downward and opens relative to the first return air inlet, and the first return air inlet is connected to the air inlet for return air in cooling mode; in the downward air outlet state, the third air guide plate covers the first return air inlet.
[0034] In some embodiments, the indoor unit of the air conditioner further includes:
[0035] A panel, the bottom end of which is rotatably connected to the bottom end of a front panel, with the axis of rotation extending along a first direction, the panel serving to cover the front panel; and
[0036] The first drive mechanism is configured to drive the panel toward or away from the front panel in a second direction;
[0037] In the bottom air outlet state, the panel moves outward relative to the front panel, and the top of the panel rotates outward to open, so as to form a second return air vent between the panel and the top panel. The second return air vent is connected to the return air duct for return air in heating mode.
[0038] In some embodiments, the first drive mechanism includes a telescopic mechanism, the first end of which is rotatably connected to the inside of the panel, and the second end of which passes through the air inlet and is connected to the housing. Two first drive mechanisms are provided and located on both sides of the heat exchanger along a first direction.
[0039] According to another aspect of this disclosure, an air conditioning unit is proposed, including the indoor unit of the above-described embodiments.
[0040] Based on the above technical solution, the air conditioner indoor unit of this embodiment has the air duct assembly rotatably installed in the housing. By rotating the air duct assembly to change the airflow direction, the air conditioner indoor unit can switch between the upper air outlet state in cooling mode and the lower air outlet state in heating mode, realizing the upward blowing of cold air and the downward blowing of hot air, thereby optimizing the cooling and heating effect and improving user comfort. Moreover, since the cross-flow fan blade has a large length along the first direction, it is not necessary to arrange multiple fans side by side in the first direction. Furthermore, the first air outlet and the second air outlet can be set to a large length in the first direction, thereby improving the uniformity of air outlet along the first direction. Attached Figure Description
[0041] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of the present disclosure and are used to explain the disclosure, but do not constitute an undue limitation thereof. In the drawings:
[0042] Figure 1 This is a schematic diagram of the air conditioner indoor unit in cooling mode with the air outlet in some embodiments of the present disclosure.
[0043] Figure 2 for Figure 1Enlarged view of point K1 in the image.
[0044] Figure 3 for Figure 2 Enlarged view of point K2 in the image.
[0045] Figure 4 This is a schematic diagram of the air outlet state of some embodiments of the air conditioner indoor unit in heating mode.
[0046] Figure 5 for Figure 4 Enlarged view of point K3 in the image.
[0047] Explanation of reference numerals in the attached figures
[0048] 1. Shell; 11. Top plate; 12. Bottom plate; 13. Rear plate; 14. Front plate; 15. First baffle; 151. Fixed baffle; 152. Movable baffle; 152A. Second guide plate; 152B. Second branch plate; 152C. Extension plate; 16. Second baffle; 17. Third baffle; 18. Fourth baffle; 10. First air outlet; 20. Second air outlet; 30. First return air outlet; 40. Second return air outlet; 111. First air guide plate; 121. Second air guide plate; 122. Third air guide plate;
[0049] 2. Crossflow fan blades; 21. Air duct inlet; 22. Air duct outlet;
[0050] 3. Install the cylinder;
[0051] 4. Volute tongue; 41. First guide vane; 42. First branch plate;
[0052] 5. Air duct shell; 51. Third guide vane; 52. Third branch plate; 53. Fourth branch plate;
[0053] 6. Panel; 61. Hinge base; 62. First drive mechanism;
[0054] 7. Heat exchanger; 71. First heat exchange plate; 72. Second heat exchange plate;
[0055] 8. First limiting component;
[0056] 9. Second limiting component; 91. First plate; 92. Second plate;
[0057] F, return air duct; x, first direction; y, second direction; z, third direction. Detailed Implementation
[0058] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values set forth in these embodiments should be interpreted as exemplary only and not as limiting.
[0059] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.
[0060] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.
[0061] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.
[0062] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0063] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.
[0064] First, this disclosure proposes an indoor unit for an air conditioner, such as Figures 1 to 5 As shown, in some embodiments, the indoor unit of the air conditioner includes:
[0065] The housing 1 includes a top plate 11 and a bottom plate 12. The top plate 11 is provided with a first air outlet 10 for air outlet in cooling mode, and the bottom plate 12 is provided with a second air outlet 20 for air outlet in heating mode.
[0066] A cross-flow fan blade 2 is disposed within the housing 1, and the central axis of the cross-flow fan blade 2 extends along the first direction x of the housing 1; and
[0067] The air duct assembly includes an interconnected air duct housing 5 and a volute tongue 4, which are spaced apart circumferentially along the cross-flow fan blades 2 to form an air duct inlet 21 and an air duct outlet 22 on the circumferential sidewall of the air duct assembly. The air duct assembly is rotatable about a central axis to allow the indoor unit of the air conditioner to switch between an upper air outlet state in cooling mode and a lower air outlet state in heating mode.
[0068] The first direction is the length direction of the housing 1. The housing 1 also includes a front plate 14 and a rear plate 13, which are connected between the top plate 11 and the bottom plate 12 and are relatively spaced apart along a second direction y, which is perpendicular to the first direction x and is the width direction of the housing 1. The top plate 11 and the bottom plate 12 are relatively spaced apart along a third direction z, which is perpendicular to the first direction x and the second direction y and can be the height direction of the housing 1. The housing 1 also includes two side plates, which are connected between the top plate 11 and the bottom plate 12 and are spaced apart along the first direction x. The top plate 11, bottom plate 12, front plate 14, rear plate 13, and two side plates form an accommodating space.
[0069] Optionally, the top plate 11, bottom plate 12, front plate 14, rear plate 13 and two side plates may be straight plates, curved plates, a combination of straight plates and curved plates, or other shapes.
[0070] The cross-flow fan blade 2 extends along the first direction x, forming a long cylindrical shape. The top plate 11 has a first air outlet 10, which extends along the first direction x and its length continuously covers the length of the cross-flow fan blade 2. The bottom plate 12 has a second air outlet 20, which also extends along the first direction x and its length continuously covers the length of the cross-flow fan blade 2. This structure can increase the air volume. Optionally, the first air outlet 10 and the second air outlet 20 can also be intermittently arranged along the first direction x. Optionally, the shapes of the first air outlet 10 and the second air outlet 20 can be rectangular, elliptical, circular, or any other shape.
[0071] The duct assembly is rotatable around its central axis, and a drive component for rotating the duct assembly can be installed inside the housing 1. The duct assembly includes an interconnected duct shell 5 and a volute tongue 4, which are spaced apart circumferentially along the cross-flow fan blade 2 to form a duct inlet 21 and a duct outlet 22 on the circumferential sidewall of the duct assembly. The duct inlet 21 allows airflow to enter the cross-flow fan blade 2, and the duct outlet 22 allows airflow to exit from the cross-flow fan blade 2. The duct inlet 21 and the duct outlet 22 can be continuously or intermittently arranged in the first direction x.
[0072] Specifically, compared to an air conditioner indoor unit with only one air outlet and a deflector to change the direction of hot and cold air, this structure avoids forced airflow changes, reduces airflow impact losses, and optimizes cooling and heating effects.
[0073] In this embodiment, the indoor unit of the air conditioner has a rotatable air duct assembly housed within the casing 1. By rotating the air duct assembly, the airflow direction can be changed, enabling the indoor unit to switch between an upward airflow state in cooling mode and a downward airflow state in heating mode. This allows for upward blowing of cold air and downward blowing of hot air, thereby optimizing the cooling and heating effects and improving user comfort. By setting a first air outlet 10 for cooling mode on the top plate 11 and a second air outlet 20 for heating mode on the bottom plate 12, the height difference of the indoor unit casing can be fully utilized to increase the uniformity of the distribution of hot and cold air during indoor movement, solving the problems of rising hot air, small air delivery range, and poor effect in heating mode. By setting air outlets on the top plate 11 and bottom plate 12 respectively to achieve upward and downward airflow, there is no need to forcibly guide the airflow at the fan outlet, which reduces airflow impact loss and increases the air delivery range during cooling and heating, improving human comfort.
[0074] Specifically, by setting a first air outlet 10 on the top plate 11 for cooling mode, the cold air blows upward, avoiding direct airflow onto people. At the same time, by making full use of the height of the indoor unit, the air outlet height of the cold air is raised, allowing the cold air to be more evenly distributed in the room as it descends, circulating fully and creating a shower-like cooling effect, thereby improving the cooling effect and user comfort. By setting a second air outlet 20 on the bottom plate 12 for heating mode, the hot air blows downward, allowing the hot air to be directly delivered to the ground. This allows the hot air to be more evenly distributed in the room as it rises, circulating fully and creating a carpet-like heating effect, thereby improving the heating effect and user comfort.
[0075] Moreover, since the cross-flow fan blade 2 has a large length along the first direction x, it is not necessary to arrange multiple fans side by side in the first direction x, and the first air outlet 10 and the second air outlet 20 can be set with a large length in the first direction x, thereby improving the uniformity of air outlet along the first direction x.
[0076] In some embodiments, such as Figure 1 As shown, the air duct assembly also includes two mounting cylinders 3 that are coaxially spaced along the first direction x, and the air duct shell 5 and the volute tongue 4 are connected between the two mounting cylinders 3.
[0077] Specifically, for this type of duct assembly, the drive assembly may include: a power component, gears, and an arc-shaped rack. The power component can be a motor or similar device, such as a stepper motor. The arc-shaped rack is located on the side wall of the mounting cylinder 3. The power component drives the arc-shaped rack through the gears, thereby causing the entire duct assembly to rotate. From a structural simplicity perspective, the drive assembly can be located at one end of the duct assembly. From a rotational stability perspective, two sets of drive assemblies can be provided, one at each end of the duct assembly.
[0078] This embodiment connects the air duct housing 5 and the volute tongue 4 by setting mounting cylinders at both ends, which facilitates the overall rotation of the air duct assembly and improves the overall rigidity of the air duct assembly. It also makes the air duct inlet 21 and the air duct outlet 22 continuous in the first direction x, so as to achieve continuous and uniform air outlet 10 or the second air outlet 20 in the first direction x.
[0079] In some embodiments, the indoor unit of the air conditioner further includes: a first air guide duct disposed inside the top plate 11 and a second air guide duct disposed inside the bottom plate 12, wherein...
[0080] In the top air outlet state, the air duct outlet 22 is connected to the first air outlet 10 through the first guide air duct, the first air outlet 10 is open, and the second air outlet 20 is closed.
[0081] In the downward air outlet state, the air duct outlet 22 is connected to the second air outlet 20 through the second guide air duct, the second air outlet 20 is open, and the first air outlet 10 is closed.
[0082] like Figure 1 and Figure 4 As shown, the first and second airflow guide ducts are inclined in opposite directions. For example, the top of the first airflow guide duct is inclined towards the front, and the bottom of the second airflow guide duct is inclined towards the rear. In the upward airflow state, part of the sidewall of the second airflow guide duct can be retracted to prevent obstruction of the return airflow; in the downward airflow state, part of the sidewall of the first airflow guide duct can be retracted.
[0083] This embodiment incorporates a first and a second airflow guide duct within the housing 1. In the upward airflow state, the duct housing 5 and the volute tongue 4 connect with the first airflow guide duct, directing the airflow from the duct outlet 22 to the first air outlet 10 for discharge. In the downward airflow state, the duct housing 5 and the volute tongue 4 connect with the second airflow guide duct, directing the airflow from the duct outlet 22 to the second air outlet 20 for discharge. Thus, the first and second airflow guide ducts guide the airflow direction and maintain a certain airflow velocity, increasing the air delivery distance.
[0084] In some embodiments, such as Figure 1 As shown, the housing 1 includes a rear plate 13, which is connected between the top plate 11 and the bottom plate 12. One of the first and second airflow guiding ducts includes:
[0085] The first baffle 15, with its first end connected to the top plate 11 or the bottom plate 12, and its second end abutting against the volute tongue 4 in the airflow outlet state of the airflow duct where the first baffle 15 is located; and
[0086] The second baffle 16 has its first end connected to the top plate 11 or the bottom plate 12, and the second baffle 16 is located on the side of the first baffle 15 near the rear plate 13 along the second direction y. The second end of the second baffle 16 abuts against the air duct shell 5 in the upward air outlet state, and the second direction y is perpendicular to the first direction x.
[0087] The first baffle 15 and the second baffle 16 can be flat plates or curved plates, and the second baffle 16 and the first baffle 15 are spaced apart along the first direction x.
[0088] This embodiment enables the second end of the first baffle 15 to abut against the volute tongue 4 and the second end of the second baffle 16 to abut against the duct shell 5 when the air is being discharged from the airflow duct where the first baffle 15 is located. The first or second airflow duct formed by the first baffle 15 and the second baffle 16 can guide the airflow direction and maintain a certain airflow speed, increasing the air supply range to connect the airflow duct, thereby allowing air to be discharged through the airflow duct.
[0089] In some embodiments, such as Figure 1 and Figure 4 As shown, the first baffle 15 includes:
[0090] Fixed baffle 151, the first end of which is connected to the top plate 11 or the bottom plate 12; and
[0091] The movable baffle 152 has its first end rotatably connected to the second end of the fixed baffle 151, with its rotation axis aligned with the first direction x. The second end of the movable baffle 152 is configured to abut against the volute tongue 4 when air is being discharged through the air duct where the first baffle 15 is located, and to abut against the second baffle 16 when no air is being discharged through the air duct where the first baffle 15 is located.
[0092] Wherein, the hinge axis between the first end of the movable baffle 152 and the fixed baffle 151 is A. In the upward air outlet state, the movable baffle 152 swings until its second end abuts against the volute tongue 4. At this time, the fixed baffle 151 and the movable baffle 152 smoothly transition to form the first baffle 15. The first baffle 15 and the second baffle 16 together form the first guide air duct to guide the airflow of the air duct outlet 22 to flow along the first guide air duct to the first air outlet 10.
[0093] like Figure 4 As shown, in the downward air outlet state, the movable baffle 152 swings until its second end abuts against the side wall of the second baffle 16 facing the first baffle 15, and the movable baffle 152 cuts off the first airflow duct.
[0094] In this embodiment, the first baffle 15 is designed to be connected by a fixed baffle 151 and a movable baffle 152. In the upper air outlet state or the lower air outlet state, the movable baffle 152 can be rotated to different positions to meet the special requirements of different heat exchange modes.
[0095] More preferably, such as Figure 1 As shown, the first airflow duct includes a first baffle 15 and a second baffle 16. The top end of the first baffle 15 is connected to the top plate 11, and the bottom end of the first baffle 15 abuts against the volute tongue 4 in the upward airflow state. The top end of the second baffle 16 is connected to the top plate 11, and the second baffle 16 is located on the side of the first baffle 15 near the rear plate 13 along the second direction y. The bottom end of the second baffle 16 abuts against the air duct shell 5 in the upward airflow state. The second direction y is perpendicular to the first direction x.
[0096] The first baffle 15 includes a fixed baffle 151 and a movable baffle 152. The first end of the fixed baffle 151 is connected to the top plate 11. The top end of the movable baffle 152 is rotatably connected to the bottom end of the fixed baffle 151, and the axis of rotation is consistent with the first direction x. The bottom end of the movable baffle 152 is configured to abut against the volute tongue 4 in the upward air outlet state and abut against the second baffle 16 in the downward air outlet state. The hinge axis between the top end of the movable baffle 152 and the fixed baffle 151 is A. In the upward air outlet state, the movable baffle 152 swings downward until its bottom end abuts against the volute tongue 4. At this time, the fixed baffle 151 and the movable baffle 152 smoothly transition to form the first baffle 15. The first baffle 15 and the second baffle 16 together form a first guide air duct to guide the airflow of the air duct outlet 22 to flow along the first guide air duct to the first air outlet 10.
[0097] like Figure 4 As shown, in the downward air outlet state, the movable baffle 152 swings upward until its bottom end abuts against the side wall of the second baffle 16 facing the first baffle 15, and the movable baffle 152 cuts off the first airflow duct.
[0098] For example, the movable baffle 152 can rotate to abut against the volute tongue 4 in the upward air outlet state to form a first guide channel to guide the upward air outlet. In the downward air outlet state, it can rotate to abut against the second baffle 16, which has at least the following three advantages: 1. When the movable baffle 152 is retracted, the return airflow is not blocked by the movable baffle 152, and the return airflow can enter the air duct inlet 21 at a larger angle, improving the air inlet and outlet efficiency; 2. The movable baffle 152 prevents the airflow from exiting from the first guide channel, and the first air outlet 10 can also be covered by the first air guide plate 111, which can improve the airflow sealing performance and prevent the airflow from flowing out from the first air outlet 10; 3. In the heating mode, the double baffles prevent condensation from occurring when the high-temperature gas inside the shell 1 exchanges heat with the low-temperature gas outside the shell 1.
[0099] In some embodiments, at least one of the volute tongue 4, the movable baffle 152, and the air duct shell 5 includes: a guide plate and at least one branch plate, the branch plate being angularly connected to the side of the guide plate away from the airflow.
[0100] This embodiment takes into account that the volute tongue 4, the movable baffle 152, and the duct shell 5 are rotatable components. Based on the airflow guidance function achieved by the guide plate, a branch plate is set on the side away from the airflow channel. This can strengthen the structure of the guide plate, improve its structural strength, and prevent deformation after long-term use. This improves the docking accuracy between the volute tongue 4, the movable baffle 152, and the duct shell 5 and other components, prevents airflow leakage caused by gaps at the docking points, and improves air outlet efficiency. Moreover, it can improve the stability during rotation, prevent shaking during rotation, and extend service life. In addition, the branch plate can also limit the extreme position of the duct assembly rotation.
[0101] In some embodiments, the volute tongue 4 includes: a first guide plate 41 and at least one first branch plate 42, the first guide plate 41 is bent outward at its first end near the air duct outlet 22, and the first branch plate 42 is angularly connected to the side of the first guide plate 41 away from the cross-flow fan blade 2; the movable baffle 152 includes: a second guide plate 152A and at least one second branch plate 152B, the second branch plate 152B is angularly connected to the side of the second guide plate 152A away from the second baffle 16;
[0102] In the upward air outlet state, the first end of the first guide plate 41 abuts against the second end of the second guide plate 152A, and at least a portion of the first branch plate 42 abuts against at least a portion of the second branch plate 152B.
[0103] Specifically, such as Figure 2 As shown, the movable baffle 152 includes a second guide plate 152A and two second branch plates 152B. One second branch plate 152B is located near the second end of the second guide plate 152A, and the other second branch plate 152B is located in the middle region of the second guide plate 152A, and its length may be less than the length of the second branch plate 152B near the second end of the second guide plate 152A. Both second branch plates 152B are inclined towards the direction near the second end of the second guide plate 152A.
[0104] The volute tongue 4 includes a first guide plate 41 and two first branch plates 42. The two first branch plates 42 are arranged in parallel and are substantially parallel to the outwardly bent first end of the first guide plate 41. The outwardly bent first end of the first guide plate 41 can abut against the second end of the second guide plate 152A in the upward air outlet state, and the transition is smooth, guiding the airflow into the first guide channel with less resistance. One of the first branch plates 42 is located near the second end of the first guide plate 41, and the other first branch plate 42 is located in the middle region and its length is less than that of the first branch plate 42 near the second end.
[0105] In the upward airflow state, the volute tongue 4 is located at the top region of the cross-flow fan blade 2, and the duct housing 5 is located in the region of the cross-flow fan blade 2 near the rear plate 13. The movable baffle 152 rotates downward to abut against the volute tongue 4. At this time, the first end of the first guide plate 41 abuts against the second end of the second guide plate 152A, and the first branch plate 42 and the second branch plate 152B located on the outer side can abut against each other, which can improve the stability of the abutment between the movable baffle 152 and the volute tongue 4. Optionally, the first branch plate 42 and the second branch plate 152B may have overlapping end sections to limit the rotation of the duct assembly to the upward airflow state by the second guide plate 152A. In this state, the second branch plate 152B is closer to the rear plate 13 than the first branch plate 42.
[0106] In this embodiment, the first end of the first guide plate 41 of the volute tongue 4 is bent outward, allowing it to abut against the second end of the second guide plate 152A in the upward airflow state, with a smooth transition, guiding the airflow into the first guide channel with less resistance. Furthermore, a first branch plate 42 is provided on the side of the first guide plate 41 of the volute tongue 4 away from the cross-flow fan blade 2, and a second branch plate 152B is provided on the side of the second guide plate 152A of the movable baffle 152 away from the second baffle 16. This improves the structural strength of the volute tongue 4 and the movable baffle 152, ensures stable rotation, extends service life, and improves the docking accuracy with the movable baffle 152 of the volute tongue 4, preventing airflow leakage. Additionally, the second branch plate 152B can limit the volute tongue 4 to position the upward airflow outlet.
[0107] In some embodiments, such as Figure 2 As shown, the movable baffle 152 includes a second guide plate 152A and an extension plate 152C. The extension plate 152C is connected to the first end of the second guide plate 152A and extends in the opposite direction to the second guide plate 152A. The extension plate 152C is configured to abut against the side of the fixed baffle 151 away from the second baffle 16 in the upward air outlet state for limiting.
[0108] Specifically, the extension plate 152C is deflected relative to the second guide plate 152A along its thickness direction toward the thickness direction of the fixed baffle 151. In this way, when the air is in the upward air outlet state and abuts against the fixed baffle 151, the entire side of the extension plate 152C can contact the side of the fixed baffle 151 to achieve limiting and improve limiting stability.
[0109] In this embodiment, by setting an extension plate 152C at the first end of the second guide plate 152A, when the movable baffle 152 rotates downward to smoothly transition with the fixed baffle 151 to form the first guide air duct, the fixed baffle 151 can limit the movable baffle 152 to accurately reach the position abutting against the volute tongue 4 and stably maintain the position.
[0110] In some embodiments, such as Figure 4 As shown, the housing 1 includes a rear plate 13, which is connected between the top plate 11 and the bottom plate 12. The other of the first and second airflow ducts includes:
[0111] The third baffle 17 has its first end connected to the base plate 12, and its second end abutting against the air duct shell 5 when the air is being discharged from the air duct where the third baffle 17 is located; and
[0112] The fourth baffle 18 has its first end connected to the bottom plate 12, and the fourth baffle 18 is located on the side of the third baffle 17 near the rear plate 13 along the second direction y. The second end of the fourth baffle 18 abuts against the volute tongue 4 when the air is being discharged from the air duct where the third baffle 17 is located.
[0113] The third baffle 17 and the fourth baffle 18 can be flat plates or curved plates, and are spaced apart along the first direction x. This embodiment allows the second end of the fourth baffle 18 to abut against the volute tongue 4 while air is exiting through the airflow duct where the third baffle 17 is located. Specifically, the second end of the fourth baffle 18 abuts against the first end of the first guide plate 41 that is bent outwards; and the second end of the third baffle 17 abuts against the airflow duct shell 5. The first or second airflow duct formed by the third baffle 17 and the fourth baffle 18 can guide the airflow direction and maintain a certain airflow speed, increasing the airflow range.
[0114] In some embodiments, such as Figure 1 and Figure 4 As shown, the housing 1 includes a rear plate 13, which is connected between the top plate 11 and the bottom plate 12. A first limiting member 8 and a second limiting member 9 are fixedly installed inside the housing 1. The first limiting member 8 is located on the side of the second air duct near the rear plate 13, and the second limiting member 9 is located on the side of the second air duct away from the rear plate 13.
[0115] The air duct shell 5 includes: a third guide plate 51, a third branch plate 52 and a fourth branch plate 53. The third branch plate 52 and the fourth branch plate 53 are both connected at an angle to the side of the third guide plate 51 away from the cross-flow fan blade 2. The third branch plate 52 is located in the area of the third guide plate 51 near the air duct inlet 21 and is inclined toward the end of the third guide plate 51 near the air duct inlet 21. The fourth branch plate 53 is located in the area of the third guide plate 51 near the air duct outlet 22.
[0116] In the upward air outlet state, the end of the third branch plate 52 abuts against the first side of the first limiting member 8; in the downward air outlet state, the end of the fourth branch plate 53 abuts against the top of the second limiting member 9, and the volute tongue 4 abuts against the second side of the first limiting member 8.
[0117] Specifically, the housing 1 has an arc-shaped plate located in the lower region near the rear plate 13. A first limiting member 8 is located on the inner wall of the arc-shaped plate, extending circumferentially and situated in the lower region near the rear plate 13. The first side of the first limiting member 8 is its top surface, which can be horizontal, and the second side is either vertical or inclined. The first limiting member 8 is located outside the fourth baffle 18. The length of the first limiting member 8 in the first direction x can be the same as, or equal to, the length of the cross-flow fan blade 2, or multiple members can be spaced apart along the first direction x.
[0118] Specifically, the second limiting member 9 is located outside the third baffle 17 and can be a vertical flat plate extending along the third direction z. The top end of the second limiting member 9 extends to a position where it can be abutted by the fourth branch plate 53. The bottom end of the second limiting member 9 can be connected to the third baffle 17 through the first plate 91 and to the bottom plate 12 through the second plate 92. The first plate 91 can extend horizontally, and the second plate 92 can extend obliquely or vertically.
[0119] The air duct shell 5 includes: a third guide plate 51, a third branch plate 52 and a fourth branch plate 53. The third guide plate 51 has at least an arc-shaped plate. The length of the third branch plate 52 is greater than that of the fourth branch plate. The third branch plate 52 is inclined toward the end of the third guide plate 51 near the air duct inlet 21. The fourth branch plate 53 can be a shorter protrusion.
[0120] exist Figure 1 The upward air outlet configuration shown is as follows: Figure 3 As shown in the enlarged view of K2, the third branch plate 52 abuts against the top surface of the first limiting member 8 from above, and the second branch plate 152B abuts against the first branch plate 42 to achieve the limiting of the air duct assembly.
[0121] exist Figure 1 Based on this, rotate the air duct assembly counterclockwise until it reaches... Figure 4 The downward air outlet configuration shown is as follows: Figure 5 As shown in the enlarged view of K3, the first branch plate 42 abuts against the side of the first limiting member 8 from the side, and the fourth branch plate 53 abuts against the top of the second limiting member 9 to limit the air duct assembly.
[0122] This embodiment, by setting a first limiting member 8 and a second limiting member 9, can make the volute tongue 4 and the duct shell 5 block and cooperate with the corresponding parts of the limiting member when the duct assembly rotates to the upper air outlet state or the lower air outlet state. This can not only mechanically limit the duct assembly, so that the duct assembly can accurately stop at the corresponding position to achieve upper air outlet in cooling mode or lower air outlet in heating mode, but also keep the duct assembly in a stable position during the operation of the air conditioner indoor unit.
[0123] In some embodiments, the housing 1 includes a rear plate 13, which is connected between the top plate 11 and the bottom plate 12. A first air guide plate 111 is rotatably provided at the first air outlet 10, and a second air guide plate 121 is rotatably provided at the second air outlet 20.
[0124] In the upward air outlet state, the first air guide plate 111 tilts upward relative to the first air outlet 10 to form a front and upper air outlet, and the second air guide plate 121 covers the second air outlet 20; in the downward air outlet state, the second air guide plate 121 tilts downward relative to the second air outlet 20 to form a rear and lower air outlet, and the first air guide plate 111 covers the first air outlet 10.
[0125] like Figure 1 As shown, the first air outlet 10 is located on the top plate 11, and the first air guide plate 111 is a long strip-shaped structure extending along the first direction x. When the indoor unit of the air conditioner is in the upward air outlet state, the first air guide plate 111 opens to guide the airflow forward and upward, that is, to guide the airflow along the second direction y towards the front plate 14. Optionally, the hinge center line of the first air guide plate 111 can be in the middle area of the first air outlet 10 or in the edge area of the first air outlet 10. Optionally, the angle between the first air guide plate 111 and the top plate 11 in the open state can be no greater than 30°, so as to make the horizontal air delivery distance of the first air outlet 10 farther.
[0126] like Figure 4 As shown, the second air outlet 20 is located on the base plate 12, and the second air guide plate 121 is a long strip-shaped structure extending along the first direction x. When the indoor unit of the air conditioner is in the downward air outlet state, the second air guide plate 121 opens to guide the airflow forward and downward, that is, to guide the airflow along the second direction y towards the rear plate 13. Optionally, the hinge center line of the second air guide plate 121 can be in the middle area of the second air outlet 20, or it can be in the edge area of the second air outlet 20.
[0127] This embodiment allows for the selective opening and closing of matching air outlets in different operating modes of the indoor air conditioning unit by rotating the first air guide plate 111 and the second air guide plate 121. This control is simple and convenient. Even if one air outlet malfunctions, it does not affect the function of the other operating mode. Furthermore, the air guide plates can direct the airflow, optimizing the air delivery effect. In addition, in the down-ventilation state or the off state, the first air outlet 10 is closed to prevent airflow leakage and to prevent dust and debris from falling into the first air outlet 10 when not in operation. In cooling mode with the air outlet at the top, the airflow from the front and top allows the cooling air to travel further, ensuring a longer airflow distance within the room. In this mode, the cool airflow in the room flows and diffuses from top to bottom, preventing it from blowing directly on people and effectively improving human comfort. In heating mode with the air outlet at the bottom, the airflow from the rear and bottom allows the heating air to flow downwards along the wall, resulting in a longer vertical airflow distance. This prevents the top from being hotter than the bottom, improving the heating effect.
[0128] In some embodiments, the first air guide plate 111 is rotatably connected to one end of the first air outlet 10 near the rear plate 13 along the second direction y, the second direction y being perpendicular to the first direction x.
[0129] This embodiment, by placing the first air guide plate 111 on the side of the first air outlet 10 close to the rear plate 13, can better correct the direction of cold air when the air outlet direction of the first air guide duct is greatly deviated from the horizontal plane due to structural limitations. This is achieved by cooperating with the tilt direction of the first air guide plate 111, making the air outlet direction of the cold air closer to the horizontal plane and optimizing the cooling effect.
[0130] In some embodiments, the housing 1 includes a front panel 14 connected between the top panel 11 and the bottom panel 12. The front panel 14 is provided with an air inlet for indoor airflow to enter. The indoor unit of the air conditioner also includes a heat exchanger 7, which is disposed between the front panel 14 and the air duct assembly along a second direction y. The heat exchanger 7 and the front panel 14 are spaced apart to form a return air channel F. The second direction y is perpendicular to the first direction x.
[0131] The heat exchanger 7 includes a first heat exchange plate 71 and a second heat exchange plate 72, which are connected at an obtuse angle and have an opening air duct assembly at the angle.
[0132] For example, the second heat exchange plate 72 is arranged approximately parallel to the front plate 14, and the upper end of the first heat exchange plate 71 is connected to the lower end of the second heat exchange plate 72. The lower end of the first heat exchange plate 71 extends towards the cross-flow fan blade 2. This structure allows the heat exchanger 7 to surround the air duct assembly on the side near the front plate 14, making the distance between the heat exchanger 7 and the air duct assembly from top to bottom relatively close. This makes it easier for the airflow passing through the heat exchanger 7 from the return air duct F to enter the cross-flow fan blade 2 through the air duct inlet 21, thereby improving the air intake stability of the cross-flow fan. Moreover, the inclined second heat exchange plate 72 increases the width of the first return air inlet 30 when the size of the housing 1 along the second direction y is fixed, thereby increasing the return air volume in the cooling mode.
[0133] This embodiment improves heat exchange efficiency and effect by forming a return air channel F between the heat exchanger 7 and the front panel 14. This allows the return airflow entering from the return air inlet to flow into the return air channel F, fully exchange heat with the heat exchanger 7, and then enter the air duct inlet 21. Furthermore, the return air channel F and the air outlet are located on both sides of the heat exchanger 7, ensuring sufficient heat exchange between the return airflow and the heat exchanger as it flows through, further enhancing the heat exchange effect. Moreover, when switching the air outlet, the airflow always flows in the order of heat exchanger 7, cross-flow fan 2, and air outlet. There is no situation where the cross-flow fan 2 blows towards the heat exchanger 7 during switching, reducing noise and allowing the use of only one filter.
[0134] In some embodiments, such as Figure 1 As shown, a first return air inlet 30 is provided on the base plate 12. The first return air inlet 30 is connected to the return air duct F. A third air guide plate 122 is rotatably provided at the first return air inlet 30.
[0135] In the upward air outlet state, the third air guide plate 122 is tilted downward relative to the first return air inlet 30 and opens, and the first return air inlet 30 is connected to the air inlet for return air in cooling mode; in the downward air outlet state, the third air guide plate 122 covers the first return air inlet 30.
[0136] Specifically, if only one third air guide plate 122 is installed when the first return air vent 30 is large, a large length of the third air guide plate 122 will be exposed outside the bottom plate 12 when the third air guide plate 122 is tilted downward and opened. For better aesthetics, at least two third air guide plates 122 can be installed side by side along the second direction y. When the third air guide plate 122 is open, air can return between the third air guide plate 122 and the first return air vent 30, as well as between adjacent third air guide plates 122. When the third air guide plate 122 is closed, at least two third air guide plates 122 together cover the first return air vent 30.
[0137] In cooling mode, indoor air enters the airflow channel F through the first return air inlet 30, and is heated by the heat exchanger 7. Then, it enters the cross-flow fan 2 through the air duct inlet 21, and then flows out from the first air outlet 10 through the first guide channel.
[0138] In this embodiment, during cooling mode, the first return air inlet 30 and the first air outlet 10 are diagonally opposite to the heat exchanger 7 and are far apart. This prevents the air from being re-drawn into the housing 1 due to the return air inlet and the air outlet being too close, resulting in smoother airflow and improved heat exchange efficiency. Moreover, when switching to different air outlets, the overall airflow path is from top to bottom or bottom to top, resulting in a smoother gas flow path and less resistance compared to a fixed return air inlet.
[0139] In some embodiments, such as Figure 4 As shown, the indoor unit of the air conditioner also includes:
[0140] Panel 6, the bottom end of which is rotatably connected to the bottom end of front panel 14, and the axis of rotation extending along a first direction x, panel 6 is used to cover front panel 14; and
[0141] The first drive mechanism 62 is configured to drive the panel 6 toward or away from the front panel 14 along the second direction y; for example, the first drive mechanism 62 may be a linear push mechanism such as an electric push rod.
[0142] In the downward air outlet state, panel 6 moves outward relative to front panel 14, and the top of panel 6 rotates outward to open, so as to form a second return air vent 40 between panel 6 and top panel 11. The second return air vent 40 is connected to return air channel F for heating mode return air.
[0143] Specifically, when switching to heating mode, the first drive mechanism 62 is first controlled to push the panel 6 outward. During the pushing process, since the bottom end of the panel 6 is connected to the bottom end of the front panel 14 through the hinge shaft B, the top end of the panel 6 moves away from the front panel 14 and forms a second return air vent 40. Indoor air enters through the second return air vent 40, passes through the air inlet on the front panel 14 into the airflow channel F, passes through the heat exchanger 7 and enters the air duct inlet 21, and flows out from the second air outlet 20 after passing through the cross-flow fan blades 2. When it is necessary to switch to cooling mode, the first drive mechanism 62 is controlled to retract the panel inward until the panel 6 closes the second return air vent 40 and adheres to the front panel 14.
[0144] In this embodiment, during heating mode, the second return air vent 40 and the second air outlet 20 are positioned diagonally opposite each other relative to the heat exchanger 7, with a greater distance between them. This prevents the air from being re-drawn into the casing 1 due to the return air vent and the air outlet being too close, resulting in smoother airflow and improved heat exchange efficiency. Furthermore, by rotating the panel 6 to form the second return air vent 40, the width of the top plate 11 along the second direction y can be reduced. When the panel 6 is closed, the width of the wall-mounted unit above it can be reduced.
[0145] In some embodiments, the first drive mechanism 62 includes a telescopic mechanism. A first end of the telescopic mechanism is rotatably connected to the inner side of the panel 6, and a second end of the telescopic mechanism passes through the air inlet and is connected to the housing 1. Two first drive mechanisms 62 are provided and located on opposite sides of the heat exchanger 7 along a first direction x. For example, the telescopic mechanism can be an electric push rod, etc. A hinge seat 61 is provided on the inner side of the panel 6, and the first end of the telescopic mechanism is hinged to the hinge seat 61.
[0146] This embodiment provides telescopic mechanisms at both ends of the panel 6 along the first direction x of the heat exchanger 7. When the panel 6 needs to be opened or closed, the two telescopic mechanisms can operate simultaneously. Since the panel 6 is relatively long, this structure can improve the smoothness of opening or closing the panel 6 and prevent jamming.
[0147] In some specific embodiments, the indoor unit of the air conditioner disclosed herein switches the air duct to achieve an upward air outlet state in cooling mode and a downward air outlet state in heating mode through the rotation of the air duct assembly and the rotation of the movable baffle 152. The rotation of the panel 6, the first air guide plate 111, the second air guide plate 121, and the third air guide plate 122 can be achieved by using a stepper motor, etc. By rotating the air duct assembly and opening and closing different return air vents and air outlets, the air outlet direction can be switched, thereby improving the cooling and heating effect.
[0148] When the unit is in cooling mode, the air duct assembly and movable baffle 152 rotate to Figure 1At the indicated positions, the third air guide plate 122 and the first air guide plate 111 are opened to open the first return air vent 30 and the first air outlet 10. At this time, the airflow direction is as shown by the arrows, entering the airflow channel F from the first return air vent 30, being cooled by the heat exchanger 7, and then entering the cross-flow fan blade 2 from the air duct inlet 21. Finally, it passes through the first air guide duct and is blown upwards and forwards from the first air outlet 10. In this state, the cool air in the room flows and diffuses from top to bottom, avoiding direct airflow onto people, effectively improving human comfort. Simultaneously, due to the higher air supply height, the air supply range is wider, resulting in better cooling performance.
[0149] When the unit is in heating mode, the duct assembly and movable baffle 152 rotate to Figure 4 As shown, the top of panel 6 and the second air guide plate 121 are opened, allowing the second return air vent 40 and the second air outlet 20 to open. At this time, the airflow direction is as indicated by the arrows. It enters the airflow channel F from the second return air vent 40, is heated by the heat exchanger 7, and then enters the cross-flow fan 2 from the air duct inlet 21, finally being blown out from the second air outlet 20 through the second air guide duct. In this state, the hot airflow is blown diagonally downwards along the air duct and flows down the wall, resulting in a longer vertical air delivery distance. This avoids a situation where the top temperature is high and the bottom temperature is low, improving the heating effect.
[0150] Secondly, this disclosure also provides an air conditioning unit, including the indoor unit of the above embodiments.
[0151] The air conditioning unit in this embodiment switches between an upward airflow state in cooling mode and a downward airflow state in heating mode via its indoor unit. This optimizes cooling and heating performance, improves user comfort, and enhances energy efficiency. Furthermore, the air outlet of this type of air conditioning unit can be made longer in the longitudinal direction, improving airflow uniformity.
[0152] The present disclosure provides a detailed description of an indoor air conditioning unit and an air conditioning system. Specific embodiments have been used to illustrate the principles and implementation methods of the present disclosure. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present disclosure. It should be noted that those skilled in the art can make various improvements and modifications to the present disclosure without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this disclosure.
Claims
1. An indoor unit for an air conditioner, characterized in that, include: The housing (1) includes a top plate (11) and a bottom plate (12). The top plate (11) is provided with a first air outlet (10) for air outlet in cooling mode, and the bottom plate (12) is provided with a second air outlet (20) for air outlet in heating mode. A cross-flow fan blade (2) is disposed inside the housing (1), and the central axis of the cross-flow fan blade (2) extends along the first direction (x) of the housing (1); and The air duct assembly includes an interconnected air duct housing (5) and a volute tongue (4), the air duct housing (5) and the volute tongue (4) being spaced apart circumferentially along the cross-flow fan blade (2) to form an air duct inlet (21) and an air duct outlet (22) on the circumferential sidewall of the air duct assembly. The air duct assembly is rotatable about the central axis to allow the indoor unit of the air conditioner to switch between an upper air outlet state in the cooling mode and a lower air outlet state in the heating mode.
2. The indoor unit of the air conditioner according to claim 1, characterized in that, The air duct assembly further includes two mounting cylinders (3) coaxially spaced along the first direction (x), and the air duct shell (5) and the volute tongue (4) are connected between the two mounting cylinders (3).
3. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: A first airflow guide duct is disposed on the inner side of the top plate (11) and a second airflow guide duct is disposed on the inner side of the bottom plate (12), wherein, In the above-air-outlet state, the air duct outlet (22) is connected to the first air outlet (10) through the first guide air duct, the first air outlet (10) is open, and the second air outlet (20) is closed; In the lower air outlet state, the air duct outlet (22) is connected to the second air outlet (20) through the second guide air duct, the second air outlet (20) is open, and the first air outlet (10) is closed.
4. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing (1) includes a rear plate (13) connected between the top plate (11) and the bottom plate (12), and one of the first and second airflow ducts includes: A first baffle (15), the first end of which is connected to the top plate (11) or the bottom plate (12), and the second end of the first baffle (15) abuts against the volute tongue (4) when the airflow from the guide duct where the first baffle (15) is located is in the airflow outlet state; and The second baffle (16) has its first end connected to the top plate (11) or the bottom plate (12), and the second baffle (16) is located on the side of the first baffle (15) near the rear plate (13) along the second direction (y). The second end of the second baffle (16) abuts against the air duct shell (5) when the air duct where the first baffle (15) is located is in the air outlet state. The second direction (y) is perpendicular to the first direction (x).
5. The indoor unit of the air conditioner according to claim 4, characterized in that, The first baffle (15) includes: A fixed baffle (151), the first end of which is connected to the top plate (11) or the bottom plate (12); and A movable baffle (152) is provided, the first end of which is rotatably connected to the second end of the fixed baffle (151), and the axis of rotation is consistent with the first direction (x). The second end of the movable baffle (152) is configured to abut against the volute tongue (4) when air is being discharged through the air duct where the first baffle (15) is located, and to abut against the second baffle (16) when air is not being discharged through the air duct where the first baffle (15) is located.
6. The indoor unit of the air conditioner according to claim 5, characterized in that, At least one of the volute tongue (4), the movable baffle (152), and the air duct shell (5) includes: a guide plate and at least one branch plate, the branch plate being angularly connected to the side of the guide plate away from the airflow.
7. The indoor unit of the air conditioner according to claim 5, characterized in that, The volute tongue (4) includes: a first guide plate (41) and at least one first branch plate (42), wherein the first guide plate (41) is bent outward at its first end near the air duct outlet (22), and the first branch plate (42) is angularly connected to the side of the first guide plate (41) away from the cross-flow fan blade (2); the movable baffle (152) includes: a second guide plate (152A) and at least one second branch plate (152B), wherein the second branch plate (152B) is angularly connected to the side of the second guide plate (152A) away from the second baffle (16); In the upward air outlet state, the first end of the first guide plate (41) abuts against the second end of the second guide plate (152A), and at least a portion of the first branch plate (42) abuts against at least a portion of the second branch plate (152B).
8. The indoor unit of the air conditioner according to claim 5, characterized in that, The movable baffle (152) includes a second guide plate (152A) and an extension plate (152C). The extension plate (152C) is connected to the first end of the second guide plate (152A) and extends in the opposite direction to the second guide plate (152A). The extension plate (152C) is configured to abut against the side of the fixed baffle (151) away from the second baffle (16) in the upward air outlet state for limiting.
9. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing (1) includes a rear plate (13) connected between the top plate (11) and the bottom plate (12), and the other of the first and second airflow ducts includes: The third baffle (17) has its first end connected to the bottom plate (12), and its second end abuts against the air duct shell (5) when the air duct where the third baffle (17) is located is in the air outlet state; and The fourth baffle (18) has its first end connected to the bottom plate (12), and the fourth baffle (18) is located on the side of the third baffle (17) near the rear plate (13) along the second direction (y). The second end of the fourth baffle (18) abuts against the volute tongue (4) when the air is being discharged from the air duct where the third baffle (17) is located.
10. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing (1) includes a rear plate (13), which is connected between the top plate (11) and the bottom plate (12). A first limiting member (8) and a second limiting member (9) are fixedly disposed inside the housing (1). The first limiting member (8) is located on the side of the second air duct close to the rear plate (13), and the second limiting member (9) is located on the side of the second air duct away from the rear plate (13). The air duct shell (5) includes: a third guide plate (51), a third branch plate (52) and a fourth branch plate (53). The third branch plate (52) and the fourth branch plate (53) are both connected at an angle to the side of the third guide plate (51) away from the cross-flow fan blade (2). The third branch plate (52) is located in the area of the third guide plate (51) near the air duct inlet (21) and is inclined toward the end of the third guide plate (51) near the air duct inlet (21). The fourth branch plate (53) is located in the area of the third guide plate (51) near the air duct outlet (22). In the upward air outlet state, the end of the third branch plate (52) abuts against the first side of the first limiting member (8); In the downward air outlet state, the end of the fourth branch plate (53) abuts against the top of the second limiting member (9), and the volute tongue (4) abuts against the second side of the first limiting member (8).
11. The indoor unit of the air conditioner according to claim 1, characterized in that, The housing (1) includes a rear plate (13), which is connected between the top plate (11) and the bottom plate (12). A first air guide plate (111) is rotatably provided at the first air outlet (10), and a second air guide plate (121) is rotatably provided at the second air outlet (20). In the upward air outlet state, the first air guide plate (111) opens upward relative to the first air outlet (10) to form a front upper air outlet, and the second air guide plate (121) covers the second air outlet (20); in the downward air outlet state, the second air guide plate (121) opens downward relative to the second air outlet (20) to form a rear lower air outlet, and the first air guide plate (111) covers the first air outlet (10).
12. The indoor unit of the air conditioner according to claim 11, characterized in that, The first air guide plate (111) is rotatably connected to one end of the first air outlet (10) along the second direction (y) near the rear plate (13), and the second direction (y) is perpendicular to the first direction (x).
13. The indoor unit of the air conditioner according to any one of claims 1 to 12, characterized in that, The housing (1) includes a front plate (14) connected between the top plate (11) and the bottom plate (12). The front plate (14) is provided with an air inlet for indoor airflow. The indoor unit of the air conditioner also includes a heat exchanger (7). The heat exchanger (7) is disposed between the front plate (14) and the air duct assembly along a second direction (y). The heat exchanger (7) and the front plate (14) are spaced apart to form a return air channel (F). The second direction (y) is perpendicular to the first direction (x).
14. The indoor unit of the air conditioner according to claim 13, characterized in that, The base plate (12) is provided with a first return air inlet (30), which is connected to the return air channel (F). A third air guide plate (122) is rotatably provided at the first return air inlet (30). In the upward air outlet state, the third air guide plate (122) is tilted downward relative to the first return air inlet (30), and the first return air inlet (30) is connected to the air inlet for return air in cooling mode; in the downward air outlet state, the third air guide plate (122) covers the first return air inlet (30).
15. The indoor unit of the air conditioner according to claim 13, characterized in that, Also includes: A panel (6), the bottom end of which is rotatably connected to the bottom end of the front panel (14), and the axis of rotation extending along the first direction (x), the panel (6) being used to cover the front panel (14); and A first drive mechanism (62) is configured to drive the panel (6) toward or away from the front panel (14) along the second direction (y); In the lower air outlet state, the panel (6) moves outward relative to the front panel (14), and the top of the panel (6) rotates outward to open, so as to form a second return air inlet (40) between the panel (6) and the top panel (11). The second return air inlet (40) is connected to the return air channel (F) for return air in heating mode.
16. The indoor unit of the air conditioner according to claim 15, characterized in that, The first drive mechanism (62) includes a telescopic mechanism. The first end of the telescopic mechanism is rotatably connected to the inside of the panel (6), and the second end of the telescopic mechanism passes through the air inlet and is connected to the housing (1). The first drive mechanism (62) is provided in two and is located on both sides of the heat exchanger (7) along the first direction (x).
17. An air conditioning unit, characterized in that, Includes the air conditioning indoor unit as described in any one of claims 1 to 16.