air conditioner indoor unit

Abstract

This application discloses an indoor air conditioner unit, belonging to the field of air conditioning technology. The indoor air conditioner unit includes: a return air vent and an air outlet on the outer casing, the return air vent and the air outlet being distributed circumferentially along the outer casing; a fan disposed inside the outer casing, the fan being positioned close to the air outlet; an indoor heat exchanger disposed on the side of the fan relatively away from the air outlet; the air outlet includes a first air outlet and a second air outlet, the first air outlet being located above the second air outlet; a duct component rotatably connected to the outside of the fan, the duct component including a first wing plate and a second wing plate, the second wing plate being spaced apart from and connected to the first wing plate by a predetermined distance; this application simplifies the internal control structure of the air conditioner by setting a first wing plate and a second wing plate with fixed relative positions to rotate around the fan, thereby alternately isolating the first air outlet and the second air outlet, and when one air outlet is used to output a corresponding airflow, it can avoid interference from the other air outlet, so that different airflows are output through the corresponding air outlets.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to an indoor air conditioning unit. Background Technology

[0002] An air conditioner, also known as an air conditioning unit, is a device that uses artificial means to regulate and control parameters such as temperature, humidity, and airflow of the air inside a building or structure. An air conditioner typically consists of an indoor unit and an outdoor unit.

[0003] Currently, air conditioner indoor units typically include a return air vent and an air outlet, with a fixed duct structure. When the air conditioner indoor unit is used for cooling or heating, the cooling airflow tends to sink more easily than the indoor air, while the heating airflow tends to rise more easily than the indoor air.

[0004] However, if the air outlet is set to horizontal airflow, it will facilitate the cooling airflow to be delivered from top to bottom in the room, so that the cooling airflow will evenly cover the room. However, the heating airflow will be suspended at the top of the room, and the heating airflow will not achieve the effect of evenly covering the room. Conversely, if the air outlet is set to downward airflow, the effect of evenly covering the room with cooling airflow will not be achieved. Setting two air outlets to discharge air separately requires the addition of multiple valves for coordinated opening and closing, which increases the complexity of air conditioning airflow control and increases manufacturing and assembly costs. Utility Model Content

[0005] This application provides an indoor air conditioning unit that uses a first wing plate and a second wing plate fixed in relative positions to rotate around a fan, thereby alternately blocking the first air outlet and the second air outlet. This simplifies the internal control structure of the air conditioner and prevents the other air outlet from interfering with the air outlet when one air outlet is used to output the corresponding airflow. This allows different airflows to be output through the corresponding air outlet, achieving the technical effect of uniformly covering the entire room with cooling or heating airflow and improving human comfort.

[0006] On the one hand, an air conditioner indoor unit is provided, characterized in that it includes: The outer casing is provided with a return air vent and an air outlet. A fan is disposed inside the housing and is positioned near the air outlet; An indoor heat exchanger is located on the side of the fan that is relatively far from the air outlet, and is used to exchange heat with the airflow passing through it; The air outlet includes a first air outlet and a second air outlet. The first air outlet is located above the second air outlet. The first air outlet faces horizontally to output cooling airflow, and the second air outlet faces downward of the outer casing to output heating airflow. A duct component is rotatably connected to the outside of the fan; the duct component includes: First wing plate; The second wing plate is separated from the first wing plate by a preset distance, and the preset distance forms the air duct outlet of the air duct component at the end near the air outlet. When the air duct component rotates to the point where the first wing plate blocks the first air outlet, the air duct outlet and the second air outlet are connected to each other, and the fan outputs heating airflow to the lower part of the outer casing through the second air outlet; When the air duct component rotates to the point where the second wing plate blocks the second air outlet, the air duct outlet is connected to the first air outlet, and the fan outputs cooling airflow through the first air outlet.

[0007] Based on the above technical solution, by setting a first wing plate and a second wing plate with fixed relative positions to rotate around the fan, the first air outlet and the second air outlet are alternately blocked, which simplifies the control structure inside the air conditioner. When one air outlet is used to output the corresponding airflow, the other air outlet can be avoided from interfering with it, so that different airflows are output through the corresponding air outlets, achieving the technical effect of uniformly covering the entire room with cooling or heating airflow and improving human comfort.

[0008] In some embodiments, the ductwork further includes: An air guide plate is connected to the end of the first wing plate away from the air duct outlet. The fan is located within the space enclosed by the air guide plate and the second wing plate.

[0009] Based on the above technical solution, by setting a guide plate that cooperates with the first wing plate, a relatively closed and clearly directional guide air duct is formed, which allows the airflow blown out by the fan to smoothly transition to the selected air outlet, greatly reducing turbulence and energy loss in the air duct, and improving air delivery efficiency and comfort.

[0010] In some embodiments, the duct component further includes two duct side plates, with the first wing plate, the second wing plate, and / or the air guide plate connected between the two duct side plates.

[0011] Based on the above technical solution, by setting two air duct side plates, the relative positions of the first wing plate, the second wing plate, and the air guide plate are kept stable, thereby stably guiding the airflow blown out by the fan and making it blow out at the corresponding air outlet.

[0012] In some embodiments, the axis of rotation of the air duct component coincides with the axis of rotation of the fan, so that the air duct component rotates around the fan.

[0013] Based on the above technical solution, by setting the air duct component composed of the air guide plate, the first wing plate and the second wing plate to rotate coaxially with the fan, the rotation accuracy of the air duct component is improved, the volume of the air duct component is reduced, and the internal structural layout of the air conditioner indoor unit is optimized.

[0014] In some embodiments, the outer surface of the first wing and / or the second wing away from the fan is an arc surface.

[0015] Based on the above technical solution, by setting an arc surface on the first wing plate and / or the second wing plate, the first wing plate and / or the second wing plate can rotate smoothly inside the shell, avoiding jamming that would prevent airflow from being output from the corresponding air outlet.

[0016] In some embodiments, the arc length corresponding to the arc surface of the first wing plate is greater than the maximum inner diameter of the first air outlet, and the arc length corresponding to the arc surface of the second wing plate is greater than the maximum inner diameter of the second air outlet.

[0017] Based on the above technical solution, by setting the arc length of the first wing plate and the second wing plate to be greater than the maximum inner diameter of the two air outlets, the problem of air leakage caused by the inability of flat plates or short arc plates to completely cover the air outlets is solved, thereby improving the sealing effect and air guiding efficiency of the air duct.

[0018] In some embodiments, the rotation angle of the air duct component from its state of being connected to the first air outlet to its state of being connected to the second air outlet is not greater than 90°.

[0019] Based on the above technical solution, by limiting the rotation angle of the air duct components to no more than 90°, it is possible to avoid jamming or misalignment caused by excessive rotation, thereby improving the overall operational stability and mechanical durability.

[0020] In some embodiments, the indoor unit of the air conditioner further includes: The lower guide plate has one end located on the air outlet side of the second air outlet and connected to the outer casing, and the other end extends away from the outer casing to guide the second air outlet to output heating airflow downwards from the outer casing.

[0021] Based on the above technical solution, by setting the lower guide plate, it is possible to effectively prevent hot air from forming a heat accumulation zone near the second air outlet, enhance the downward sinking ability of hot air, and improve the coverage area of ​​warm air and human comfort.

[0022] In some embodiments, the extension direction of the lower guide plate coincides with the vertical line of the bottom surface of the housing, or the extension direction of the lower guide plate is inclined to the side away from the return air vent.

[0023] Based on the above technical solution, by setting the lower guide plate to be perpendicular to the bottom surface of the outer shell or inclined towards the return air outlet, the return air short-circuiting phenomenon caused by the airflow from the second air outlet to the return air outlet can be avoided, thereby improving the heat exchange efficiency.

[0024] On the other hand, an air conditioning indoor unit is also provided, including: The outer casing has a return air inlet and an air outlet, which are distributed circumferentially along the outer casing. A fan is disposed inside the housing and is positioned near the air outlet; An indoor heat exchanger is located on the side of the fan that is relatively far from the air outlet, and is used to exchange heat with the airflow passing through it; The air outlet further includes a first air outlet and a second air outlet. The first air outlet is located above the second air outlet. The first air outlet faces horizontally to output cooling airflow, and the second air outlet faces downward of the outer casing to output heating airflow. A baffle module is rotatably mounted on one side of the fan. The baffle module is located between the fan and the air outlet to isolate the air duct. An clearance opening is provided on the baffle module to allow the fan to connect to the first air outlet or the second air outlet. When the clearance is rotated between the fan and the second air outlet, the baffle module simultaneously blocks the air duct between the fan and the first air outlet, and the fan outputs heating airflow to the lower part of the outer casing through the second air outlet; When the clearance is rotated to the position between the fan and the first air outlet, the baffle module simultaneously blocks the air duct between the fan and the second air outlet, and the fan outputs cooling airflow in the horizontal direction through the first air outlet.

[0025] Based on the above technical solution, by using the clearance openings on the baffle module, the air outlet direction of the air duct can be flexibly changed when the baffle module rotates, so as to connect the first air outlet for cooling or the second air outlet for heating, thereby avoiding the mixing of hot and cold air and improving heat exchange efficiency and air delivery accuracy. Attached Figure Description

[0026] Figure 1 A structural schematic diagram of an air conditioner indoor unit with the first air outlet separated according to some embodiments is shown. Figure 2 A schematic diagram of air outlet is shown in the state of the air conditioner indoor unit with the first air outlet separated according to some embodiments; Figure 3 A schematic diagram showing the inclined extension of the lower guide plate of an air conditioner indoor unit according to some embodiments is shown; Figure 4 A schematic diagram of air outlet when the lower guide plate of an indoor air conditioning unit is tilted and extended according to some embodiments is shown. Figure 5 A structural schematic diagram of an air conditioner indoor unit with the second air outlet separated according to some embodiments is shown; Figure 6A schematic diagram of air outlet is shown in the state where the indoor unit of an air conditioner is isolated from the second air outlet according to some embodiments; Figure 7 A schematic diagram showing a size comparison between the first wing plate and the first air outlet of an air conditioning indoor unit according to some embodiments is provided. Figure 8 A schematic diagram showing a size comparison between the second wing plate and the second air outlet of an air conditioning indoor unit according to some embodiments is provided. Figure 9 A schematic diagram showing the rotation angle of a first or second wing of an air conditioning indoor unit according to some embodiments is shown. Figure 10 A schematic diagram of the connection structure near the fan of an indoor air conditioning unit according to some embodiments is shown; Figure 11 A schematic diagram showing the distribution of components near the fan of an indoor air conditioning unit according to some embodiments is shown.

[0027] In the above figures, 100 is the outer casing; 101 is the first air outlet; 102 is the second air outlet; 103 is the return air outlet; 200 is the fan; 300 is the indoor heat exchanger; 400 is the air duct component; 401 is the first wing plate; 402 is the second wing plate; 403 is the air guide plate; 404 is the air duct side plate; 500 is the lower guide plate; and 600 is the drive shaft. Detailed Implementation

[0028] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0033] The compressor compresses refrigerant gas at a low temperature and low pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0034] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0035] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0036] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0037] This utility model discloses an indoor unit for an air conditioner, relating to the field of air conditioning technology. See the attached document for details. Figure 1-11 The indoor unit of the air conditioner is described.

[0038] Reference Appendix Figures 1 to 11 An air conditioner indoor unit includes a housing 100, which is hollow inside and serves as the main structure of the air conditioner indoor unit. The housing 100 is made of high-strength engineering plastic or sheet metal.

[0039] The outer casing 100 not only serves a protective function, but also guides the airflow rationally by opening the return air vent 103 and the air outlet.

[0040] The return air vent 103 is used to draw in stale indoor air, while the air outlet is responsible for sending treated fresh air back into the room to ensure effective air circulation and improve the cooling or heating effect of the indoor air conditioner.

[0041] Reference Appendix Figures 1 to 11 An indoor unit of an air conditioner includes a fan 200, which is disposed inside a housing 100 and is located near an air outlet.

[0042] Fan 200 is a cross-flow fan 200. Cross-flow fan 200 has the advantages of low noise and high air volume, so it is suitable for occasions that require quiet operation and high air volume.

[0043] The cross-flow fan 200 can generate a more uniform airflow, making the temperature in different areas of the room more even and improving comfort.

[0044] The cross-flow fan 200 is able to maintain a low noise level, providing users with a quiet environment.

[0045] Reference Appendix Figures 1 to 9 An indoor unit of an air conditioner includes an indoor heat exchanger 300, which is located on the side of the fan 200 that is relatively far from the air outlet.

[0046] The indoor heat exchanger 300 is a temperature control component that regulates the airflow temperature. It transfers the cooling or heating effect to the air through heat exchange, thereby exchanging heat with the airflow passing through it.

[0047] Based on the airflow direction entering the housing 100, the airflow entering the housing 100 through the return air vent 103 first passes through the indoor heat exchanger 300 on the air inlet side of the fan 200, and then flows to the fan 200.

[0048] Therefore, the windward side of the indoor heat exchanger 300 faces the return air inlet 103, and the leeward side of the indoor heat exchanger 300 faces the fan 200, for exchanging heat with the airflow passing through it.

[0049] The airflow entering the housing 100 from the return air vent 103 first absorbs heat through the indoor heat exchanger 300 to reduce the airflow temperature and form a cooling airflow. Then, the cooling airflow flows from the leeward side of the indoor heat exchanger 300 to the fan 200 and is blown by the fan 200 to the first air outlet 101 to output the cooling airflow.

[0050] Alternatively, the airflow entering the housing 100 from the return air vent 103 first releases heat through the indoor heat exchanger 300 to increase the airflow temperature and form a heating airflow. Then, the heating airflow flows from the leeward side of the indoor heat exchanger 300 to the fan 200 and is blown by the fan 200 to the second air outlet 102 to output the heating airflow.

[0051] Reference Appendix Figures 1 to 6 In some embodiments of this application, the air outlet provided on the housing 100 includes a first air outlet 101, which faces the horizontal direction.

[0052] The first air outlet 101 is installed on the side wall of the outer casing 100 near the air outlet side of the fan 200. The first air outlet 101 is used to horizontally output cooling airflow in a direction away from the outer casing 100.

[0053] The air outlet provided on the outer casing 100 also includes a second air outlet 102, which faces downwards from the outer casing 100.

[0054] The second air outlet 102 is installed on the bottom wall of the outer casing 100, and the second air outlet 102 is used to output heating airflow to the bottom of the outer casing 100.

[0055] The first air outlet 101 is located above the second air outlet 102.

[0056] When the fan 200 drives the airflow to the first air outlet 101 and the second air outlet 102, the first air outlet 101, located above the second air outlet 102, can directly output the cooling airflow horizontally in the direction away from the outer casing 100.

[0057] When the fan 200 drives the airflow to the first air outlet 101 and the second air outlet 102, the second air outlet 102, which is located below the first air outlet 101, is more convenient to output heating airflow to the lower part of the housing 100.

[0058] Reference Appendix Figures 1 to 6 In some embodiments of this application, the return air vent 103 is opened on the side wall of the housing 100 opposite to the first air outlet 101.

[0059] The first air outlet 101 and the return air outlet 103 are located at opposite ends of the outer casing 100. The outlet airflow and the return airflow flow in parallel and opposite directions, reducing airflow short-circuiting and turbulence, and improving air circulation efficiency.

[0060] In cooling mode, the indoor air conditioner discharges air horizontally through the first air outlet 101.

[0061] The outlet airflow is a horizontally blowing cooling airflow. The cooling airflow and the return airflow at the return air inlet 103 on the outer casing 100 form a horizontal circulation, accelerating the overall circulation of indoor air.

[0062] In heating mode, the indoor air conditioner blows air downwards from the outer casing 100 through the second air outlet 102.

[0063] The outlet airflow is a downward-blowing heating airflow. After rising naturally, the heating airflow is drawn in through the relatively high return air inlet 103, following the flow characteristics of hot air to complete the thermal cycle.

[0064] Reference Appendix Figures 1 to 11 An air conditioner indoor unit includes a duct component 400, which is rotatably connected to a fan 200. The axis of rotation of the duct component 400 coincides with the axis of rotation of the fan 200, and the duct component 400 rotates around the fan 200.

[0065] The air duct component 400 includes a first wing plate 401 and a second wing plate 402, that is, the rotation axis of the first wing plate 401 and the second wing plate 402 coincides with the rotation axis of the fan 200, and the air duct component 400 rotates around the fan 200.

[0066] The second wing plate 402 is separated from the first wing plate 401 by a preset distance, and the end of the preset distance near the air outlet forms the air duct outlet of the air duct component 400.

[0067] The air duct component 400 is used to form a guide air duct on one side of the fan 200, and the air duct outlet is the outlet end of the guide air duct away from the fan 200.

[0068] When the air duct outlet is aligned with the first air outlet 101, the air duct component 400 directs the cooling airflow blown out by the fan 200 to the first air outlet 101 for output.

[0069] When the air duct outlet is aligned with the second air outlet 102, the air duct component 400 directs the heating airflow blown out by the fan 200 to the second air outlet 102 for output.

[0070] In heating mode, when the air duct component 400 rotates to the point where the first wing plate 401 blocks the first air outlet 101, the air duct outlet and the second air outlet 102 are connected to each other, and the fan 200 outputs heating airflow to the lower part of the outer casing 100 through the second air outlet 102. In cooling mode, when the air duct component 400 rotates to the point where the second wing plate 402 blocks the second air outlet 102, the air duct outlet and the first air outlet 101 are connected to each other, and the fan 200 outputs cooling airflow through the first air outlet 101.

[0071] The air duct component 400 includes a first wing plate 401, which is rotatably disposed on one side of the fan 200. The rotation axis of the first wing plate 401 coincides with the rotation axis of the fan 200. The first wing plate 401 is used to isolate or connect the air duct between the fan 200 and the first air outlet 101.

[0072] The first wing plate 401 is driven by an independent drive motor in conjunction with a fixed rotating shaft and a drive rotating shaft 600 to rotate relative to the fan 200.

[0073] The first wing plate 401 rotates relative to the fan 200 through a fixed rotating shaft at one end and a drive rotating shaft 600 at the other end, thereby moving to the side of the first air outlet 101 to connect the air duct between the fan 200 and the first air outlet 101.

[0074] Alternatively, the first wing plate 401 moves to a position between the first air outlet 101 and the fan 200, thereby isolating the fan 200 from the first air outlet 101.

[0075] In cooling mode, the first wing plate 401 rotates to the side of the first air outlet 101 so that the air duct between the fan 200 and the first air outlet 101 is connected, and the fan 200 can directly output cooling airflow horizontally in the direction away from the outer casing 100 through the first air outlet 101.

[0076] In heating mode, the first wing plate 401 rotates between the first air outlet 101 and the fan 200, so that the fan 200 is isolated from the first air outlet 101. The airflow blown out by the fan 200 cannot be output when it passes the first air outlet 101, and thus continues to flow to the second air outlet 102 to output heating airflow to the bottom of the outer casing 100.

[0077] Reference Appendix Figures 1 to 11 The air duct component 400 also includes a second wing plate 402, which is rotatably disposed on one side of the fan 200. The rotation axis of the second wing plate 402 coincides with the rotation axis of the fan 200. The second wing plate 402 is separated from and connected to the first wing plate 401 by a preset distance. The second wing plate 402 is used to isolate or connect the air duct between the fan 200 and the second air outlet 102.

[0078] The second wing plate 402 is separated from the first wing plate 401 by a predetermined distance and the two are connected. That is, it is also driven by the aforementioned drive motor, fixed rotating shaft, and drive rotating shaft 600 to rotate relative to the fan 200, thereby moving to the side of the second air outlet 102 so that the air duct between the fan 200 and the second air outlet 102 is connected.

[0079] Alternatively, the second wing plate 402 moves between the second air outlet 102 and the fan 200 to isolate the fan 200 from the second air outlet 102.

[0080] The relative positions of the second wing plate 402 and the first wing plate 401 are fixed, and the second wing plate 402 and the first wing plate 401 are separated by a preset distance.

[0081] When the second wing plate 402 and the first wing plate 401 rotate relative to the fan 200, the preset distance between the second wing plate 402 and the first wing plate 401 also rotates relative to the fan 200. That is, the guide duct on the air outlet side of the fan 200 can rotate relative to the fan 200, and the air outlet at the preset distance actually serves as the air outlet of the guide duct on the air outlet side of the fan 200, which can be flexibly changed.

[0082] When the preset spacing is connected to the first air outlet 101 through the air duct outlet, the first wing plate 401 is located on one side of the first air outlet 101, and the second wing plate 402 is located between the second air outlet 102 and the fan 200.

[0083] That is, the airflow blown out by the fan 200 cannot be output through the second air outlet 102, and the fan 200 directly outputs the cooling airflow horizontally in the direction away from the outer casing 100 through the first air outlet 101.

[0084] When the preset spacing is connected to the second air outlet 102 through the air duct outlet, the first wing plate 401 is located between the first air outlet 101 and the fan 200, and the second wing plate 402 is located on one side of the second air outlet 102.

[0085] That is, the airflow blown out by the fan 200 cannot be output when it passes through the first air outlet 101, and thus continues to flow to the second air outlet 102 to output heating airflow to the bottom of the outer casing 100.

[0086] The relative positions of the first wing plate 401, the second wing plate 402, and the preset spacing are fixed, and all three rotate around the fan 200 to coordinate airflow.

[0087] In heating mode, when the first wing plate 401 rotates to the space between the fan 200 and the first air outlet 101 to isolate the air duct, it rotates at a preset distance to the space between the fan 200 and the second air outlet 102, and the fan 200 outputs heating airflow to the lower part of the outer casing 100 through the second air outlet 102.

[0088] In cooling mode, when the second wing plate 402 rotates to the space between the fan 200 and the second air outlet 102 to isolate the air duct, the preset distance is rotated to the space between the fan 200 and the first air outlet 101, and the fan 200 outputs cooling airflow in the horizontal direction through the first air outlet 101.

[0089] Therefore, the first wing plate 401 and the second wing plate 402 can alternately isolate the first air outlet 101 and the second air outlet 102, simplifying the control structure inside the air conditioner.

[0090] Furthermore, when one air outlet is used to output a corresponding airflow, it can avoid interference from the other air outlet, allowing different airflows to be output through their corresponding air outlets, achieving the technical effect of evenly covering the entire room and improving human comfort.

[0091] Reference Appendix Figure 1 , Figure 5 , Figure 7 , Figure 8 In some embodiments of this application, the outer surfaces of the first wing plate 401 and / or the second wing plate 402 that are away from the fan 200 are arc surfaces.

[0092] By setting the outer surfaces of the first wing plate 401 and / or the second wing plate 402 away from the fan 200 to be arc surfaces, the first wing plate 401 and / or the second wing plate 402 can rotate smoothly within the housing 100, avoiding jamming that would prevent airflow from being output from the corresponding air outlet.

[0093] In other embodiments of this application, the first wing plate 401 and / or the second wing plate 402 are bent away from the fan 200 to form a first arcuate plate structure A and a second arcuate plate structure B, respectively. This makes the outer surfaces of the first wing plate 401 and / or the second wing plate 402 away from the fan 200 arcuate surfaces.

[0094] The first wing plate 401 and the second wing plate 402 are configured to be curved to match the airflow of the fan 200. This allows the first wing plate 401 and the second wing plate 402 to not only block the airflow during rotation, but also to guide the airflow in the desired direction, thus achieving more efficient airflow switching.

[0095] The bending direction of the first wing plate 401 and the second wing plate 402 is away from the fan 200, which is used to increase the effective flow section of the guide air duct on the air outlet side of the fan 200, reduce wind resistance, and enhance the airflow pressure control effect of the first wing plate 401 and the second wing plate 402 during rotation.

[0096] The first wing plate 401 and the second wing plate 402 are bent to form the first arc-shaped plate structure A and the second arc-shaped plate structure B, respectively.

[0097] The bending radius of the first arc-shaped plate structure A and the second arc-shaped plate structure B should be flexibly designed according to the fan's 200mm diameter and airflow intensity.

[0098] When the first arc-shaped plate structure A and the second arc-shaped plate structure B adopt a larger arc, the air guiding range can be increased. Conversely, when the first arc-shaped plate structure A and the second arc-shaped plate structure B adopt a smaller arc, the structural volume can be compressed, facilitating the internal layout of the air conditioner indoor unit.

[0099] The cross-sectional shapes of the first arc-shaped plate structure A and the second arc-shaped plate structure B include, but are not limited to, circular arcs, elliptical arcs, polygonal arcs, and other composite curved surface arcs, in order to meet different aerodynamic requirements.

[0100] Compared to flat plate structures, the first arc-shaped plate structure A and the second arc-shaped plate structure B can more naturally conform to the airflow path, reducing eddies and noise caused by airflow impact, thereby improving air outlet efficiency and air delivery stability.

[0101] Reference Appendix Figure 7 and Figure 8In some embodiments of this application, the arc length corresponding to the arc surface of the first wing plate 401 is greater than the maximum inner diameter of the first air outlet 101, and the arc length corresponding to the arc surface of the second wing plate 402 is greater than the maximum inner diameter of the second air outlet 102.

[0102] The arc length corresponding to the arc surface of the first wing plate 401 is the arc length of the first arc-shaped plate structure A, while the arc length corresponding to the arc surface of the second wing plate 402 is the arc length of the second arc-shaped plate structure B.

[0103] The arc length of the first arc-shaped plate structure A is greater than the maximum inner diameter of the first air outlet 101. That is, when the first wing plate 401 rotates between the first air outlet 101 and the fan 200, it can completely cover or effectively block the air outlet channel. This ensures the sealing and guiding accuracy during air duct switching, prevents the heating airflow from leaking from the first air outlet 101, avoids air duct cross-interference, and improves the heating conversion efficiency of the indoor unit of the air conditioner.

[0104] The arc length of the second arc-shaped plate structure B is greater than the maximum inner diameter of the second air outlet 102. This means that when the second wing plate 402 rotates between the second air outlet 102 and the fan 200, it can completely cover or effectively block the air outlet channel. This ensures the sealing and guiding accuracy during air duct switching, prevents the cooling airflow from leaking from the second air outlet 102, avoids air duct cross-interference, and improves the cooling conversion efficiency of the indoor unit of the air conditioner.

[0105] In addition, when the first arc-shaped plate structure A and the second arc-shaped plate structure B can close the corresponding air outlets, they can produce a certain pressure control and guiding effect on the airflow output by the fan 200, thereby enhancing the directional output of the cooling or heating airflow.

[0106] Reference Appendix Figure 9 In some embodiments of this application, the rotation angle of the air duct component 400 from its state of being connected to the first air outlet 101 to its state of being connected to the second air outlet 102 is no greater than 90°.

[0107] That is, the rotation angle C of the first wing plate 401, the second wing plate 402 and the preset distance between them is not greater than 90°.

[0108] The relative positions of the first wing plate 401, the second wing plate 402, and the preset spacing are fixed, and all three rotate around the fan 200 to coordinate airflow. The air duct outlet at the preset spacing essentially serves as the air outlet of the guide air duct on the air outlet side of the fan 200, which can be flexibly changed.

[0109] By setting the rotation angle C to no more than 90°, the preset spacing can be quickly switched from the state of connecting to the first air outlet 101 to the state of connecting to the second air outlet 102. Conversely, the preset spacing can be quickly switched from the state of connecting to the second air outlet 102 to the state of connecting to the first air outlet 101.

[0110] The preset spacing enables rapid switching within a shorter path, reducing the energy consumption of the drive motor driving the first wing plate 401 and the second wing plate 402, and improving the response speed and efficiency of the control system.

[0111] In addition, by setting the rotation angle C to no more than 90°, it is possible to avoid jamming or misalignment of the first wing plate 401 and the second wing plate 402 due to excessive rotation, thereby improving the overall operational stability and mechanical durability.

[0112] Reference Appendix Figure 9 In some other embodiments of this application, the rotation angle C of the air duct 400 from its state of being connected to the first air outlet 101 to its state of being connected to the second air outlet 102 is set to a range of 50° to 70°.

[0113] By setting the rotation angle C to a range of 50° to 70°, the efficiency of air duct switching can be improved, and the first air outlet 101 or the second air outlet 102 can be effectively isolated to avoid cross-interference of air ducts.

[0114] Reference Appendix Figures 1 to 11 The air duct component 400 also includes an air guide plate 403, which is connected to the end of the first wing plate 401 away from the air duct outlet; the fan 200 is located in the space enclosed by the air guide plate 403 and the second wing plate 402.

[0115] The air guide plate 403 includes, but is not limited to, single-layer curved panels and multi-segment bent plate structures, to adapt to different air outlet requirements.

[0116] The air guide plate 403 is used to improve the continuity of the air duct on the air outlet side of the fan 200. When the first wing plate 401 or the second wing plate 402 rotates to different positions to selectively block the air duct from the fan 200 to the first air outlet 101 or the second air outlet 102, the air guide plate 403 moves in tandem and dynamically adjusts the direction of the air duct in coordination with the rotation angle of the first wing plate 401.

[0117] The air guide plate 403 is located at the end of the first wing plate 401 away from the air duct outlet and is connected to the first wing plate 401 to form a relatively closed and directional air duct on the air outlet side of the fan 200. Furthermore, when the first wing plate 401 drives the air guide plate 403 to rotate relative to the fan 200, the air guide duct rotates around the fan 200.

[0118] The guide duct is used to ensure that the airflow blown out by the fan 200 can smoothly transition to the first air outlet 101 or the second air outlet 102, which greatly reduces turbulence and energy loss in the duct and improves air delivery efficiency and comfort.

[0119] The fan 200 is located in the space enclosed by the air guide plate 403 and the second wing plate 402, that is, the air guide plate 403 also cooperates with the second wing plate 402 to control the airflow direction in the air duct.

[0120] In cooling mode, the first wing plate 401 rotates to the side of the first air outlet 101 so that the air duct between the fan 200 and the first air outlet 101 is connected, based on the fact that the fan 200 is located in the space enclosed by the air guide plate 403 and the second wing plate 402.

[0121] The airflow blown out by the fan 200 is directed by the air guide plate 403 to the first air outlet 101. At the same time, the second wing plate 402 also blocks the airflow blown out by the fan 200, so that the fan 200 only outputs cooling airflow horizontally in the direction away from the outer casing 100 through the first air outlet 101.

[0122] In heating mode, the first wing plate 401 rotates to a position between the first air outlet 101 and the fan 200, so that the fan 200 is isolated from the first air outlet 101. The airflow blown out by the fan 200 is guided by the air guide plate 403 and the first air outlet 101, and cannot be output after passing through the first air outlet 101, so it continues to flow to the second air outlet 102 to output heating airflow to the bottom of the outer casing 100.

[0123] Reference Appendix Figure 10 and Figure 11 In other embodiments of this application, the air guide plate 403 and the first wing plate 401 are integrally formed to form a partition air guide structure. One end of the partition air guide structure is provided with a fixed rotating shaft, and the other end is provided with a driving rotating shaft 600. The partition air guide structure is driven by a driving motor to rotate around the fan 200.

[0124] By setting the air guide plate 403 and the first wing plate 401 to be integrally formed, it is used to ensure that the airflow output by the fan 200 is effectively guided to the target air outlet, avoiding the energy loss caused by the airflow dispersion or impact on the inner wall, and also improving the cooling or heating efficiency and air delivery uniformity.

[0125] Reference Appendix Figure 10 and Figure 11 In some embodiments of this application, the air guide plate 403 extends in a curved manner toward the axis of rotation of the fan 200 at one end away from the first wing plate 401, and the extended end of the air guide plate 403 at least covers the air outlet side of the fan 200 to form an arc-shaped surrounding structure.

[0126] The manufacturing process of the arc-shaped enclosure structure includes, but is not limited to, sheet metal integral molding process and foaming process.

[0127] One end of the air guide plate 403 is connected to the first wing plate 401, and the other end extends toward the central axis of the fan 200. Its extension length covers at least the entire air outlet side area of ​​the fan 200, so that the airflow blown out by the fan 200 can be fully collected and guided when the fan 200 is running.

[0128] The arc-shaped enclosure structure is used to ensure that the air outlet area of ​​the fan 200 is fully connected with the guide duct, reducing airflow diffusion and air pressure loss, thereby enhancing the guide duct's ability to control the airflow path.

[0129] When the air guide plate 403 rotates relative to the fan 200 with the first wing plate 401, the arc-shaped surrounding structure can ensure the sealing of the air outlet area of ​​the fan 200 and the guide air duct, so that the airflow blown out by the fan 200 enters the guide air duct more concentratedly and stably, effectively reducing turbulence and thus improving the air delivery efficiency and conveying accuracy of the guide air duct.

[0130] Reference Appendix Figure 10 The air duct component 400 also includes two air duct side plates 404, with a first wing plate 401, a second wing plate 402 and / or a guide plate 403 connected between the two air duct side plates 404.

[0131] The two air duct side plates 404 are used to ensure the relative position stability of the first wing plate 401, the second wing plate 402, and the air guide plate 403, thereby stably guiding the airflow blown out by the fan 200 so that it is blown out at the corresponding air outlet.

[0132] The shape of the air duct side plate 404 includes, but is not limited to, a circle, a quadrilateral or other polygonal structure, to ensure the relative position stability of the two ends of the first wing plate 401, the second wing plate 402 and the air guide plate 403.

[0133] The connection methods between the air duct side plate 404 and the first wing plate 401, the second wing plate 402, and the air guide plate 403 include, but are not limited to, bonding, snap-fitting, and detachable connection.

[0134] Reference Appendix Figures 1 to 4 An indoor air conditioning unit includes a lower guide plate 500. One end of the lower guide plate 500 is located on the air outlet side of the second air outlet 102 and connected to the outer casing 100, while the other end extends away from the outer casing 100 to guide the second air outlet 102 to output heating airflow downwards from the outer casing 100.

[0135] By setting a lower guide plate 500 in the air outlet path of the second air outlet 102, one end of the lower guide plate 500 is located on the air outlet side of the second air outlet 102 and connected to the outer casing 100, and the other end extends in a direction away from the outer casing 100, forming a channel for guiding air downward to the outer casing 100.

[0136] Because the heating airflow does not easily sink, after the heating airflow output from the second air outlet 102 loses its air pressure, it is easy to accumulate and stagnate on the air outlet side of the second air outlet 102 due to the lack of clear airflow direction control.

[0137] To address the aforementioned technical issues, a lower guide plate 500 is installed on the air outlet side of the second air outlet 102 to guide the heating airflow, thereby giving it a clear direction. This optimizes the flow path of the heating airflow, reduces heat stagnation near the second air outlet 102, and effectively improves heating efficiency and indoor temperature uniformity.

[0138] Reference Appendix Figures 1 to 4 In some embodiments of this application, the extension direction of the lower guide plate 500 coincides with the vertical line of the bottom surface of the housing 100, or the extension direction of the lower guide plate 500 is inclined to the side away from the return air vent 103.

[0139] The extension direction of the lower guide plate 500 coincides with the vertical line of the bottom surface of the outer shell 100, that is, the extension direction of the lower guide plate 500 is perpendicular to the direction of gravity. This is used to realize the vertical downward delivery of the heating airflow, so that the heating airflow is preferentially delivered to the bottom of the room. Based on the characteristic that the heating airflow is easy to rise, the indoor heating effect is more uniform.

[0140] The lower guide plate 500 extends in a direction that is away from the return air vent 103, meaning that the extension direction of the lower guide plate 500 is at an angle to the direction of gravity. This allows the hot airflow to be output downwards at an angle, which helps the heating airflow cover a greater distance or form a circulation, thereby enhancing the uniformity of indoor temperature distribution.

[0141] Reference Appendix Figure 3 and Figure 4 In some other embodiments of this application, the angle range of the extension direction of the lower guide plate 500 tilting away from the return air vent 103 is 0° to 15°.

[0142] Because heating airflow does not easily sink, it tends to accumulate around the indoor unit of the air conditioner. The return air vent 103 of the indoor unit then easily retracts this accumulated heating airflow, resulting in a short-circuit return airflow. This leads to low heat exchange efficiency in the indoor unit and wastes electrical energy.

[0143] Given that the extension direction of the lower guide plate 500 has an angle with the direction of gravity, the angle range is set to 0° to 15°. This ensures that the heating airflow covers a longer distance and prevents the heating airflow from flowing to the return air vent 103, thereby solving the problem of return air short circuit.

[0144] In some other embodiments of this application, an indoor air conditioning unit includes a baffle module, which is rotatably disposed on one side of a fan 200. The baffle module is located between the fan 200 and the air outlet to isolate the air duct. An clearance opening is provided on the baffle module to allow the fan 200 to connect to the first air outlet 101 or the second air outlet 102.

[0145] An avoidance opening is installed in the middle of the baffle module, and the avoidance opening rotates with the baffle module relative to the fan 200. The parts on both sides of the avoidance opening on the baffle module are used to alternately block the air duct between the first air outlet 101, the second air outlet 102 and the fan 200.

[0146] The baffle module is rotatably mounted on one side of the fan 200, and is located between the fan 200 and the first air outlet 101 and the second air outlet 102. The baffle module serves to seal off the air outlet side of the fan 200, while the clearance provided on the baffle module allows the first air outlet 101 or the second air outlet 102 to connect to the air outlet side of the fan 200.

[0147] In heating mode, when the baffle module rotates to the space between the fan 200 and the first air outlet 101 to block the air duct, the clearance rotates to the space between the fan 200 and the second air outlet 102, and the fan 200 outputs heating airflow to the lower part of the outer casing 100 through the second air outlet 102.

[0148] In cooling mode, when the baffle module rotates to the space between the fan 200 and the second air outlet 102 to isolate the air duct, the clearance rotates to the space between the fan 200 and the first air outlet 101, and the fan 200 outputs cooling airflow in the horizontal direction through the first air outlet 101.

[0149] By setting a baffle module on the air outlet side of the fan 200, effective air duct switching can be achieved in the limited space within the housing 100, avoiding the need to add a complex control structure to control the opening and closing of the two air outlets separately.

[0150] By setting clearance openings on the baffle module, it is possible to quickly switch between heating and cooling air outlets during rotation, avoiding the mixing of hot and cold airflows and improving heat exchange efficiency and air delivery accuracy.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0152] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The outer casing is provided with a return air vent and an air outlet. A fan is disposed inside the housing and is positioned near the air outlet; An indoor heat exchanger is located on the side of the fan that is relatively far from the air outlet, and is used to exchange heat with the airflow passing through it; The air outlet includes a first air outlet and a second air outlet. The first air outlet is located above the second air outlet. The first air outlet faces horizontally to output cooling airflow, and the second air outlet faces downward of the outer casing to output heating airflow. The air duct component is rotatably connected to the outside of the fan; The air duct component includes: First wing plate; The second wing plate is separated from the first wing plate by a preset distance, and the preset distance forms the air duct outlet of the air duct component at the end near the air outlet. When the air duct component rotates to the point where the first wing plate blocks the first air outlet, the air duct outlet and the second air outlet are connected to each other, and the fan outputs heating airflow to the lower part of the outer casing through the second air outlet; When the air duct component rotates to the point where the second wing plate blocks the second air outlet, the air duct outlet is connected to the first air outlet, and the fan outputs cooling airflow through the first air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The air duct component also includes: An air guide plate is connected to the end of the first wing plate away from the air duct outlet. The fan is located within the space enclosed by the air guide plate and the second wing plate.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The air duct component also includes two air duct side plates, with the first wing plate, the second wing plate, and / or the air guide plate connected between the two air duct side plates.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The axis of rotation of the air duct component coincides with the axis of rotation of the fan, so that the air duct component can rotate around the fan.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The outer surface of the first wing plate and / or the second wing plate away from the fan is an arc surface.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The arc length corresponding to the arc surface of the first wing plate is greater than the maximum inner diameter of the first air outlet, and the arc length corresponding to the arc surface of the second wing plate is greater than the maximum inner diameter of the second air outlet.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The rotation angle of the air duct component from its state of being connected to the first air outlet to its state of being connected to the second air outlet is no greater than 90°.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: The lower guide plate has one end located on the air outlet side of the second air outlet and connected to the outer casing, and the other end extends away from the outer casing to guide the second air outlet to output heating airflow downwards from the outer casing.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The extension direction of the lower guide plate coincides with the vertical line of the bottom surface of the outer casing, or the extension direction of the lower guide plate is inclined to the side away from the return air vent.

10. An indoor unit for an air conditioner, characterized in that, include: The outer casing has a return air inlet and an air outlet, which are distributed circumferentially along the outer casing. A fan is disposed inside the housing and is positioned near the air outlet; An indoor heat exchanger is located on the side of the fan that is relatively far from the air outlet, and is used to exchange heat with the airflow passing through it; The air outlet further includes a first air outlet and a second air outlet. The first air outlet is located above the second air outlet. The first air outlet faces horizontally to output cooling airflow, and the second air outlet faces downward of the outer casing to output heating airflow. A baffle module is rotatably mounted on one side of the fan. The baffle module is located between the fan and the air outlet to isolate the air duct. An clearance opening is provided on the baffle module to allow the fan to connect to the first air outlet or the second air outlet. When the clearance is rotated between the fan and the second air outlet, the baffle module simultaneously blocks the air duct between the fan and the first air outlet, and the fan outputs heating airflow to the lower part of the outer casing through the second air outlet; When the clearance is rotated to the position between the fan and the first air outlet, the baffle module simultaneously blocks the air duct between the fan and the second air outlet, and the fan outputs cooling airflow in the horizontal direction through the first air outlet.

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