air conditioner indoor unit

Abstract

This utility model relates to an indoor unit of an air conditioner, which includes a casing and an air guide plate. The casing has an air outlet. The air guide plate is rotatably disposed at the air outlet. The air guide plate includes an outer air plate and an inner air plate. The outer air plate is rotatably installed at the air outlet. The inner air plates are spaced apart on the side of the outer air plate closest to the interior of the casing, forming an air guide channel between the inner and outer air plates. At least a portion of the airflow from the air outlet can flow through the air guide channel and exit along the outer air plate. The inner air plate is arc-shaped and protrudes towards the air guide channel, so that the width of the air guide channel gradually decreases and then gradually increases along the airflow direction. When the airflow from the air outlet flows through the air guide channel, it forces an increase in air pressure and velocity within the channel, thereby increasing the air velocity at the air outlet, increasing the penetrating power of the airflow, and helping to break up indoor air stratification.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit of an air conditioner. Background Technology

[0002] Split air conditioners typically consist of an indoor unit and an outdoor unit, which are installed indoors and outdoors respectively, and connected by pipes and wires.

[0003] When the indoor unit of an air conditioner is working, it usually draws in indoor air through the air inlet, and after passing through components such as the filter, heat exchanger, fan wheel and air duct, it is sent back to the room through the air outlet.

[0004] In related air conditioner indoor units, there is usually an air guide vane at the air outlet. The air guide vane can rotate along the air outlet to change the direction of the airflow. These air guide vanes are usually designed with a flat structure and can only change the direction of the airflow at the outlet, so their function is relatively simple. Utility Model Content

[0005] The purpose of this utility model is to provide an indoor unit for an air conditioner, which optimizes the structure of the air guide plate so that the air guide plate can increase the wind speed at the air outlet.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] According to one aspect of the present invention, an indoor unit of an air conditioner is provided, comprising: a casing forming the outer shell of the indoor unit; an air outlet on the casing; and an air guide plate rotatably disposed at the air outlet. The air guide plate includes: an outer air plate rotatably mounted at the air outlet; and an inner air plate spaced apart on the side of the outer air plate near the interior of the casing, wherein an air guide channel is formed between the inner air plate and the outer air plate; wherein at least a portion of the airflow from the air outlet can flow through the air guide channel and out along the outer air plate; and the inner air plate is arc-shaped and protrudes towards the air guide channel, such that the width of the air guide channel gradually decreases and then gradually increases in the direction of airflow outward.

[0008] The above-mentioned technical solution has the following advantages or beneficial effects: This solution forms an air guiding channel between the inner and outer air panels, allowing the airflow from the air outlet to flow through the air guiding channel and out along the outer air panel. The arc-shaped protrusion of the inner air panel causes the width of the air guiding channel to gradually decrease and then gradually increase along the airflow direction. When the airflow from the air outlet flows through the air guiding channel, it forces an increase in air pressure and velocity within the channel, thereby increasing the wind speed at the air outlet, enhancing the penetration of the airflow, and helping to break up indoor air stratification.

[0009] In some embodiments of this application, the inner air panel sequentially includes a first arc segment and a second arc segment; the distance between the first arc segment and the outer air panel gradually decreases along the airflow outward direction; and the distance between the second arc segment and the outer air panel gradually increases along the airflow outward direction.

[0010] The above technical solution has the following advantages or beneficial effects: by cooperating with the first arc segment and the second arc segment, the distance between the connection point of the first arc segment and the second arc segment and the outer wind panel is minimized. Along the airflow outward direction, the width of the air guide channel gradually decreases and then gradually increases, thereby forcing the airflow pressure and airflow velocity in the air guide channel to increase.

[0011] In some embodiments of this application, a compression portion is formed between the first arc segment and the second arc segment, and the compression portion has a circular arc transition.

[0012] The above technical solution has the following advantages or beneficial effects: the distance between the extrusion part and the outer air panel is minimized, and the extrusion part has an arc transition structure, which allows the airflow to flow more smoothly through the air guide channel, which is conducive to improving the airflow velocity in the air guide channel.

[0013] In some embodiments of this application, the inner air panel has a recessed clearance groove on the side away from the outer air panel, and the clearance groove and the air guide channel are respectively disposed on opposite sides of the inner air panel.

[0014] The above-mentioned technical solution has the following advantages or beneficial effects: by forming an avoidance groove on the side of the inner air panel away from the outer air panel, the structure of the inner air panel can be simplified, which is conducive to the flow of some airflow from the air outlet through the space area on the side of the inner air panel away from the outer air panel, and avoids the avoidance groove from obstructing the airflow on the side of the inner air panel away from the outer air panel.

[0015] In some embodiments of this application, the width of the inner air panel is smaller than the width of the outer air panel along the airflow outward direction; the inner air panel is disposed on the inner side of the outer air panel near the air outlet, and the air guide channel is formed between the outer air panel near the air outlet and the inner air panel.

[0016] The above-mentioned technical solution has the following advantages or beneficial effects: by making the width of the inner air panel smaller than that of the outer air panel, and by arranging the inner air panel close to the air outlet, the air guide channel can be arranged close to the air outlet, so that the airflow blown out of the air outlet can enter the air guide channel nearby and smoothly, and be blown out more smoothly through the air guide channel and flow into the room along the outer air panel.

[0017] In some embodiments of this application, the ratio of the width of the inner air panel to the width of the outer air panel is between 1 / 3 and 1 / 2 along the airflow outward direction.

[0018] The above-mentioned technical solution has the following advantages or beneficial effects: by making the ratio of the width of the inner air panel to the width of the outer air panel between 1 / 3 and 1 / 2, the air guide channel can be wide enough to increase the wind speed at the air outlet and increase the penetration of the air outlet. At the same time, it can avoid the air guide channel being too long, which would prevent the increase in wind pressure and flow velocity of the airflow from being insufficient.

[0019] In some embodiments of this application, the outer air panel has an arc-shaped structure, the central angle of the outer surface of the outer air panel is θ, and the central angle corresponding to the arc surface of the inner air panel is between 1.4θ and 2θ.

[0020] The above-mentioned technical solution has the following advantages or beneficial effects: the central angle corresponding to the arc surface of the inner air panel is between 1.4θ and 2θ. This ensures that the arc surface of the inner air panel has sufficient curvature while avoiding excessive curvature that could lead to insufficient length of the air guide channel.

[0021] In some embodiments of this application, the air guide plate includes: a connecting plate disposed between the inner air plate and the outer air plate; one end of the connecting plate is connected to the inner air plate and the other end is connected to the outer air plate; at least two connecting plates are provided, and the at least two connecting plates are respectively disposed at both ends of the inner air plate in the length direction; the air guide channel is formed between the inner air plate, the outer air plate and the two connecting plates.

[0022] The above-mentioned technical solution has the following advantages or beneficial effects: By placing a connecting plate between the inner and outer air panels, the inner air panel can be fixed to the inner side of the outer air panel through the connecting plate. By placing at least two connecting plates at both ends of the inner air panel along its length, the air guiding channel can be formed between the inner air panel, the outer air panel, and the two connecting plates, which can improve the overall structural strength of the air guiding panel and form a stable air guiding channel between the inner and outer air panels.

[0023] In some embodiments of this application, a rotating shaft portion is provided on the side of one of the connecting plates away from the other connecting plate, and the air guide plate is rotatably connected to the air outlet through the rotating shaft portion.

[0024] The above-mentioned technical solution has the following advantages or beneficial effects: By cooperating with the connecting plate and the rotating shaft, the rotating shaft can be rotatably connected to the inner wall of the air outlet, allowing the outer air vane to rotate relative to the air outlet around the rotating shaft as an axis, and driving the inner air vane to rotate synchronously. In addition, the rotating shaft being located on the connecting plate facilitates the adjustment of the center of gravity of the air guide plate, making the center of gravity closer to the axis of the rotating shaft, thereby improving the rotational stability of the air guide plate.

[0025] In some embodiments of this application, the outer air panel extends along the length of the air outlet; the inner air panel extends along the length of the outer air panel; multiple inner air panels are provided, and the multiple inner air panels are arranged sequentially at intervals along the length of the outer air panel; an interval area is formed between adjacent inner air panels, and the interval area is formed between two connecting plates at corresponding ends of two adjacent inner air panels; a connecting arm is provided at the air outlet, the connecting arm extends into the interval area, and one of the connecting plates on one side of the interval area is rotatably connected to the connecting arm.

[0026] The above technical solution has the following advantages or beneficial effects: multiple inner air panels can form multiple air guiding channels with the outer air panels, allowing these channels to be arranged sequentially at intervals along the length of the outer air panels, and further arranged sequentially at intervals along the length of the air outlet. The airflow from the air outlet can enter different air guiding channels and then be blown into the room along the outer air panels. By extending the connecting arm into the interval area and rotating it with the connecting plate, the air guiding panels can be more stably rotated and connected at the air outlet, which helps to improve the structural and rotational stability of the air guiding panels. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the indoor unit of an air conditioner according to some embodiments of this utility model.

[0028] Figure 2 yes Figure 1 Structure diagram in another state.

[0029] Figure 3 yes Figure 2 Structural diagram of the central air guide plate.

[0030] Figure 4 yes Figure 3 Front view.

[0031] Figure 5 yes Figure 4 Enlarged structural diagram of region A in the middle.

[0032] Figure 6 yes Figure 3 Enlarged structural diagram of region B in the middle.

[0033] Figure 7 yes Figure 3 A magnified structural diagram of region C in the middle.

[0034] Figure 8 yes Figure 3 A magnified structural diagram of region D in the middle.

[0035] Figure 9 yes Figure 2 A magnified structural diagram of region E in the middle.

[0036] Figure 10 yes Figure 3 Top view.

[0037] Figure 11 yes Figure 10 Cross-sectional view of the structure along the FF direction.

[0038] Figure 12 yes Figure 11 Structural diagrams in other embodiments.

[0039] Figure 13 yes Figure 12 Another structural diagram.

[0040] The reference numerals in the attached drawings are explained as follows: 1. Housing; 11. Air inlet; 12. Air outlet; 13. Connecting arm; 131. Shaft hole; 2. Air guide plate; 20. Air guide channel; 200. Air guide unit; 210. Air outlet area; 220. Spacing area; 21. Outer air plate; 22. Inner air plate; 221. First arc segment; 222. Second arc segment; 223. Extrusion section; 224. Clearance groove; 23. Connecting plate; 231. Rotating shaft section; 232. Connecting hole; 24. Partition plate; 25. Air guide rib; 25a. First end; 25b. Second end; 251. Air guide groove. Detailed Implementation

[0041] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0043] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] 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.

[0045] Figure 1 This is a structural diagram of the indoor unit of an air conditioner according to some embodiments of this utility model. Figure 2 yes Figure 1 Structure diagram in another state.

[0046] like Figure 1 and Figure 2 As shown, some embodiments of this application provide an indoor unit for an air conditioner, which may include a housing 1. The housing 1 may be configured as an outer casing for the indoor unit. The interior of the housing 1 may be used to provide installation space.

[0047] In some embodiments, the casing 1 may adopt a hollow cuboid structure. The length direction of the casing 1 may be arranged horizontally, so that the indoor unit of the air conditioner is arranged laterally in the usage site, thereby reducing the height of the indoor unit and reducing the space occupied by the indoor unit.

[0048] It should be noted that in other embodiments, the external shape of the housing 1 can be designed as needed, and no limitation is made here.

[0049] like Figure 1 and Figure 2 As shown, in some embodiments, the indoor unit of the air conditioner may include an indoor heat exchanger (not shown in the figure), which is disposed inside the casing 1. The indoor heat exchanger can serve as both a condenser and an evaporator, allowing the refrigerant to absorb heat by evaporating in the evaporator and release heat by condensing in the condenser, thereby enabling the air conditioner indoor unit to perform a cooling cycle or a heating cycle.

[0050] Specifically, in the refrigeration cycle, the indoor heat exchanger can act as an evaporator. In the heating cycle, the indoor heat exchanger can act as a condenser.

[0051] like Figure 1 and Figure 2 As shown, in some embodiments, the indoor unit of the air conditioner may include an indoor fan assembly (not shown). The indoor fan assembly may be arranged opposite to the indoor heat exchanger. The indoor fan assembly can be used to introduce indoor air into the casing 1 for heat exchange with the indoor heat exchanger, forming a heat exchange airflow.

[0052] For example, during the refrigeration cycle, the indoor heat exchanger acts as an evaporator. The indoor fan assembly can draw indoor air from outside the casing 1 and blow it towards the indoor heat exchanger to exchange heat with it, thereby reducing the temperature of the air flowing through the indoor heat exchanger. The cooled air is then blown back into the room to lower the indoor air temperature.

[0053] For example, during the heating cycle, the indoor heat exchanger acts as a condenser, and the outdoor fan assembly can draw indoor air from outside the casing 1 and blow it towards the indoor heat exchanger to exchange heat with it, raising the temperature of the air flowing through the indoor heat exchanger, and then blowing the heated air back into the room to raise the indoor air temperature.

[0054] like Figure 2 As shown, in some embodiments, an air inlet 11 may be provided on the outer wall of the housing 1. The air inlet 11 may connect to the outside of the housing 1. The air inlet 11 may connect to the indoor space. The air inlet 11 may be arranged opposite to the air inlet end of the indoor heat exchanger and the indoor fan assembly. In this way, when the indoor fan assembly is running, the indoor fan assembly can draw indoor air into the housing 1 through the air inlet 11 to exchange heat with the indoor heat exchanger, and the heat-exchanged air is discharged back into the indoor space outside the housing 1 through the air outlet end of the indoor fan assembly.

[0055] like Figure 2 As shown, in some embodiments, the air inlet 11 can be located on the top wall of the housing 1. It should be noted that in other embodiments, the air inlet 11 can also be located in other areas of the outer wall of the housing 1.

[0056] like Figure 2 As shown, in some embodiments, an air outlet 12 may be provided on the outer wall of the housing 1. The air outlet 12 may connect to the outside of the housing 1. The air outlet 12 may connect to the indoor space. The air outlet 12 may be arranged opposite to the air outlet end of the indoor fan assembly. Thus, when the indoor fan assembly is running, the indoor fan assembly draws indoor air through the indoor air inlet 11, exchanges heat with the indoor heat exchanger, and then discharges it through the air outlet end and air outlet 12 of the indoor fan assembly, and discharges it back into the indoor space outside the housing 1.

[0057] Figure 3 yes Figure 2 Structural diagram of the middle air guide plate 2.

[0058] like Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, a guide vane 2 may be provided on the outer wall of the housing 1. The guide vane 2 is rotatably disposed at the air outlet 12. When the guide vane 2 rotates, it can open or close the air outlet 12. When the guide vane 2 rotates to open the air outlet 12, it can also change the air outlet direction of the air outlet 12.

[0059] In some embodiments, the air outlet 12 is an elongated hole, and the air outlet 12 can be arranged to extend along the length direction of the housing 1. The air guide plate 2 can be an elongated structure, and the air guide plate 2 can be arranged to extend along the length direction of the air outlet 12.

[0060] Figure 4 yes Figure 3 Front view. Figure 5 yes Figure 4 Enlarged structural diagram of region A in the middle.

[0061] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the air guide plate 2 may include an outer air plate 21, which is rotatably mounted at the air outlet 12. Rotation of the outer air plate 21 can open or close the air outlet 12. The outer air plate 21 can rotate outwards from the housing 1, thereby opening the air outlet 12. When the outer air plate 21 opens the air outlet 12, it can also change the airflow direction of the air outlet 12.

[0062] like Figure 2 and Figure 3 As shown, in some embodiments, the external air panel 21 can be a long strip-shaped plate structure. The external air panel 21 can extend along the length direction of the air outlet 12.

[0063] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the air guide plate 2 may include an inner air guide plate 22. The inner air guide plate 22 is spaced apart on the side of the outer air guide plate 21 near the interior of the housing 1. The inner air guide plate 22 can rotate with the outer air guide plate 21. When the outer air guide plate 21 closes the air outlet 12, the inner air guide plate 22 can be located inside the housing 1. When the outer air guide plate 21 opens the air outlet 12, the inner air guide plate 22 can be spaced apart on the side of the outer air guide plate 21 near the air outlet 12.

[0064] Figure 6 yes Figure 3 Enlarged structural diagram of region B in the middle.

[0065] like Figure 2 , Figure 5 and Figure 6As shown, in some embodiments, an air guide channel 20 may be formed between the inner air panel 22 and the outer air panel 21. When the air guide panel 2 opens the air outlet 12, one side of the air guide channel 20 is arranged facing the air outlet 12 and the interior of the housing 1, and the other side of the air guide channel 20 is arranged facing the exterior of the housing 1. At least part of the airflow blown out of the air outlet 12 can flow through the air guide channel 20 and flow out into the indoor environment along the outer air panel 21. When the outer air panel 21 changes the air outlet 12's airflow direction, the airflow blown out of the air guide channel 20 can flow more smoothly into the room along the outer air panel 21.

[0066] In some embodiments, the width of the inner air panel 22 is smaller than the width of the outer air panel 21 along the airflow outward direction. The inner air panel 22 is disposed on the inner side of the outer air panel 21 near the air outlet 12, so that the air guide channel 20 is formed between the outer air panel 21 near the air outlet 12 and the inner air panel 22. By making the width of the inner air panel 22 smaller than the width of the outer air panel 21, and by arranging the inner air panel 22 close to the air outlet 12, the air guide channel 20 can be arranged close to the air outlet 12, thereby allowing the airflow blown out of the air outlet 12 to enter the air guide channel 20 nearby and smoothly, and to flow more smoothly through the air guide channel 20 and into the room along the outer air panel 21.

[0067] like Figure 2 , Figure 5 and Figure 6 As shown, in some embodiments, the air guide plate 2 may include a connecting plate 23, which is disposed between the inner air guide plate 22 and the outer air guide plate 21. One end of the connecting plate 23 is connected to the inner air guide plate 22, and the other end of the connecting plate 23 is connected to the outer air guide plate 21. The inner air guide plate 22 can be fixed to the inner side of the outer air guide plate 21 by the connecting plate 23.

[0068] Figure 7 yes Figure 3 A magnified structural diagram of region C in the middle.

[0069] like Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, at least two connecting plates 23 are provided, with the at least two connecting plates 23 respectively located at both ends of the inner air panel 22 along its length. An air guide channel 20 is formed between the inner air panel 22, the outer air panel 21, and the two connecting plates 23. By using the connecting plates 23 between the inner air panel 22 and the outer air panel 21, the inner air panel 22 can be fixed to the inner side of the outer air panel 21 via the connecting plates 23. By using at least two connecting plates 23 at both ends of the inner air panel 22 along its length, the air guide channel 20 can be formed enclosed between the inner air panel 22, the outer air panel 21, and the two connecting plates 23, which can both improve the overall structural strength of the air guide panel 2 and form a stable air guide channel 20 between the inner air panel 22 and the outer air panel 21.

[0070] In some embodiments, the connecting plate 23 may be located at the end of the inner air plate 22. At least one connecting plate 23 may have a rotating shaft portion 231 protruding from the side away from the other connecting plate 23, allowing the air guide plate 2 to be rotatably connected to the air outlet 12 via the rotating shaft portion 231. The rotating shaft portion 231 may be located on the outer side of the end of the inner air plate 22. Through the cooperation of the connecting plate 23 and the rotating shaft portion 231, the rotating shaft portion 231 can be rotatably connected to the inner wall of the air outlet 12, allowing the outer air plate 21 to rotate relative to the air outlet 12 about the rotating shaft portion 231 as an axis, and driving the inner air plate 22 to rotate synchronously. Furthermore, the rotating shaft portion 231 being located on the connecting plate 23 facilitates the adjustment of the center of gravity of the air guide plate 2, bringing it closer to the axis of the rotating shaft portion 231, thereby improving the rotational stability of the air guide plate 2.

[0071] In some embodiments, multiple rotating shaft portions 231 may be provided, and the multiple rotating shaft portions 231 may be respectively provided on different connecting plates 23. The multiple rotating shaft portions 231 may be arranged coaxially at intervals. The multiple rotating shaft portions 231 may be rotatably connected to the inner wall of the air outlet 12, thereby improving the overall rotational stability of the air guide plate 2.

[0072] Figure 8 yes Figure 3 A magnified structural diagram of region D in the middle.

[0073] like Figure 3 and Figure 8 As shown, in some embodiments, the connecting plate 23 can be located at the end of the outer air panel 21. A connecting hole 232 can be provided on the connecting plate 23 at the end of the outer air panel 21. A drive motor (not shown in the figure) can be provided inside the housing 1. The output end of the drive motor can be connected to the connecting hole 232, so that the drive motor is connected to the air guide plate 2 for transmission, thereby enabling the drive motor to drive the air guide plate 2 to rotate at the air outlet 12.

[0074] like Figure 5 and Figure 6 As shown, in some embodiments, the air guide plate 2 may include a partition plate 24, which is disposed between the inner air plate 22 and the outer air plate 21, and is located within the air guide channel 20. The partition plate 24 can be used to divide the air guide channel 20, so that an air guide unit 200 is formed on each of the opposite sides of the partition plate 24. Multiple partition plates 24 may be provided, and multiple partition plates 24 may be arranged sequentially at intervals along the length direction of the outer air plate 21 or the inner air plate 22. Multiple partition plates 24 can divide the air guide channel 20 into multiple air guide units 200. The partition plate 24 can improve the connection stability between the inner air plate 22 and the outer air plate 21, and improve the overall structural strength of the air guide plate 2. The airflow blown out of the air outlet 12 can enter different air guide units 200 in the air guide channel 20, and then be blown out into the room along the outer air plate 21.

[0075] like Figure 2 and Figure 3 As shown, in some embodiments, the inner air panel 22 can extend along the length direction of the outer air panel 21. The inner air panel 22 can extend along the length direction of the air outlet 12, thereby causing the air guide channel 20 to extend along the length directions of the outer air panel 21 and the air outlet 12.

[0076] like Figure 3 and Figure 7 As shown, in some embodiments, multiple inner air panels 22 can be provided, and these multiple inner air panels 22 can be arranged sequentially at intervals along the length direction of the outer air panel 21. Multiple inner air panels 22 can form multiple air guide channels 20 with the outer air panel 21, so that the multiple air guide channels 20 are arranged sequentially at intervals along the length direction of the outer air panel 21, and further arranged sequentially at intervals along the length direction of the air outlet 12. The airflow blown out of the air outlet 12 can enter different air guide channels 20 respectively, and then be blown out into the room along the outer air panel 21.

[0077] Figure 9 yes Figure 2 A magnified structural diagram of region E in the middle.

[0078] like Figure 3 , Figure 7 and Figure 9 As shown, in some embodiments, a gap 220 is formed between adjacent inner air panels 22. The gap 220 is formed between two connecting plates 23 at corresponding ends of two adjacent inner air panels 22. A connecting arm 13 is provided at the air outlet 12. The connecting arm 13 can extend into the gap 220 and is rotatably connected to the connecting plate 23. By extending the connecting arm 13 into the gap 220, a connecting plate 23 on one side of the gap 220 is rotatably connected to the connecting arm 13, so that the air guide plate 2 can be more stably rotatably connected at the air outlet 12, which is beneficial to improving the structural stability and rotational stability of the air guide plate 2.

[0079] like Figure 9 As shown, in some embodiments, the connecting arm 13 can be disposed on the top sidewall of the air outlet 12. The connecting arm 13 can extend vertically, with its upper end connected to the top sidewall of the air outlet 12 and its lower end extending downward within the partition area 220. A pivot portion 231 can be provided on the connecting plate 23 on one side of the partition area 220, and the lower end of the connecting arm 13 can extend into the partition area 220 and be rotatably connected to the corresponding pivot portion 231. The partition area 220 can provide installation space and movement space for the connecting arm 13 and the corresponding pivot portion 231. In addition, part of the airflow blown out of the air outlet 12 can also enter the partition area 220 and be blown into the room along the outer air panel 21.

[0080] like Figure 9As shown, in some embodiments, the lower end of the connecting arm 13 is provided with a shaft hole 131, which is used for the insertion of the rotating shaft part 231. The rotating shaft part 231 is rotatably connected to the shaft hole 131, so that the rotating shaft part 231 can rotate about the axis of the shaft hole 131.

[0081] like Figure 2 , Figure 3 and Figure 9 As shown, in some embodiments, the side of the inner air panel 22 away from the outer air panel 21 can form an air outlet zone 210. Part of the airflow blown out of the air outlet 12 can flow through the air outlet zone 210 and then into the indoor space.

[0082] like Figure 3 and Figure 6 As shown, in some embodiments, air guide ribs 25 may be provided on the sidewall of the air guide channel 20. The air guide ribs 25 can extend along the airflow direction within the air guide channel 20. Multiple air guide ribs 25 may be provided, arranged sequentially at intervals. An air guide groove 251 is formed between adjacent air guide ribs 25. The air guide groove 251 extends along the airflow direction within the air guide channel 20 and communicates with the air guide channel 20. By setting the air guide ribs 25 on the sidewall of the air guide channel 20, multiple air guide ribs 25 cooperate to form multiple air guide grooves 251, allowing the airflow blown out of the air guide channel 20 to be dispersed by the multiple air guide grooves 251, preventing airflow concentration within the air guide channel 20 and creating a gentler airflow effect. Multiple air guide ribs 25 and multiple air guide grooves 251 can disperse airflow pressure, which helps reduce the severe friction caused by concentrated airflow on the air guide plate 2 structure, thereby reducing the noise of the air guide plate 2.

[0083] like Figure 5 and Figure 6 As shown, in some embodiments, multiple air guide ribs 25 can be arranged in parallel at intervals within the air guide channel 20. By arranging multiple air guide ribs 25 in parallel at intervals, multiple air guide slots 251 can be arranged in parallel, allowing the airflow from the air guide channel 20 to flow more smoothly along the multiple air guide slots 251, improving the air outlet efficiency of the air guide channel 20 and creating a softer air outlet effect.

[0084] In some embodiments, a plurality of air guide ribs 25 are provided on the inner wall of the air guide unit 200. The plurality of air guide ribs 25 can be arranged in parallel at intervals within the air guide unit 200.

[0085] Figure 10 yes Figure 3 Top view. Figure 11 yes Figure 10 Cross-sectional view of the structure along the FF direction.

[0086] like Figure 3 , Figure 6 and Figure 11As shown, in some embodiments, the air guide ribs 25 can be disposed on the inner sidewall of the outer air panel 21. By disposing the air guide ribs 25 on the inner sidewall of the outer air panel 21, multiple air guide grooves 251 can be formed on the inner sidewall of the outer air panel 21. The airflow blown out by the air guide channel 20 can flow along the multiple air guide grooves 251 on the inner sidewall of the outer air panel 21, dispersing the airflow pressure on the outer air panel 21, reducing the severe friction of the air guide panel 2 structure caused by concentrated airflow, and thus reducing the noise of the air guide panel 2.

[0087] It should be noted that in some other embodiments, the air guide rib 25 may be provided on the side wall of the inner air plate 22 facing the outer air plate 21.

[0088] like Figure 11 As shown, in some embodiments, the first end 25a of the air guide rib 25 extends to the side of the outer air panel 21 near the air outlet 12, and the second end 25b of the air guide rib 25 extends out of the air guide channel 20 and extends towards the side of the outer air panel 21 away from the air outlet 12. In this way, after the airflow blown out of the air outlet 12 enters the air guide channel 20, it can smoothly enter the air guide groove 251 from the first end 25a of the air guide rib 25, and flow in the air guide groove 251 along the extending direction of the air guide rib 25 until the second end 25b of the air guide rib 25 is discharged, and smoothly blown out from the side of the outer air panel 21 away from the air outlet 12.

[0089] like Figure 6 and Figure 11 As shown, in some embodiments, there is a gap between the first end 25a of the air guide rib 25 and the side edge of the outer air panel 21 near the air outlet 12. That is, there is a gap between the first end 25a of the air guide rib 25 and the inner edge of the outer air panel 21, which can prevent the air guide rib 25 from obstructing the airflow blown out of the air outlet 12 from entering the air guide channel 20.

[0090] like Figure 6 and Figure 11 As shown, in some embodiments, there is a gap between the second end 25b of the air guide rib 25 and the side edge of the outer air panel 21 away from the air outlet 12. That is, there is a gap between the second end 25b of the air guide rib 25 and the outer edge of the outer air panel 21, so that the air flowing out of each air guide groove 251 can re-converge at the outer edge of the outer air panel 21, so that the air blown out from the outer edge of the outer air panel 21 forms a softer air outlet effect, which can further reduce the noise of the air guide 2.

[0091] Figure 12 yes Figure 11 Structural diagrams in other embodiments.

[0092] like Figure 12 As shown, in some embodiments, the air guide ribs 25 may not be provided on the side wall of the air guide channel 20.

[0093] like Figure 6 and Figure 11 As shown, in some embodiments, the inner air panel 22 is arc-shaped and protrudes towards the air guide channel 20, so that the width of the air guide channel 20 gradually decreases and then gradually increases along the airflow direction. The arc-shaped protrusion of the inner air panel 22 forces the airflow pressure and velocity within the air guide channel 20 to increase when the airflow from the air outlet 12 passes through it. This increases the wind speed at the air outlet 12, enhances the penetration of the airflow, and helps break up indoor air stratification.

[0094] like Figure 6 and Figure 11 As shown, in some embodiments, along the airflow outflow direction, the inner air panel 22 includes a first arc segment 221 and a second arc segment 222 connected in sequence. Along the airflow outflow direction, the distance between the first arc segment 221 and the outer air panel 21 gradually decreases, while the distance between the second arc segment 222 and the outer air panel 21 gradually increases. Through the cooperation of the first arc segment 221 and the second arc segment 222, the distance between the connection point of the first arc segment 221 and the second arc segment 222 and the outer air panel 21 is minimized. Along the airflow outflow direction, the width of the air guide channel 20 first gradually decreases and then gradually increases, thereby forcing an increase in airflow pressure and velocity within the air guide channel 20.

[0095] In some embodiments, a compression section 223 is formed between the first arc segment 221 and the second arc segment 222, and the compression section 223 has a rounded transition. The distance between the compression section 223 and the outer air panel 21 is minimal. The rounded transition structure of the compression section 223 allows the airflow to flow more smoothly through the air guide channel 20, which is beneficial to increasing the airflow velocity in the air guide channel 20.

[0096] like Figure 11 and Figure 12 As shown, in some embodiments, a relief groove 224 is recessed on the side of the inner air panel 22 away from the outer air panel 21. The relief groove 224 and the air guide channel 20 are respectively disposed on opposite sides of the inner air panel 22. By forming the relief groove 224 on the side of the inner air panel 22 away from the outer air panel 21, the structure of the inner air panel 22 can be simplified, which is conducive to the flow of some airflow from the air outlet 12 through the space area on the side of the inner air panel 22 away from the outer air panel 21, and avoids the relief groove 224 obstructing the airflow on the side of the inner air panel 22 away from the outer air panel 21.

[0097] like Figure 6 , Figure 11 and Figure 12 As shown, in some embodiments, the width of the connecting plate 23 can be greater than the width of the partition plate 24 along the airflow outward direction. The wider connecting plate 23 can make the airflow within the air guide channel 20 more stable.

[0098] Figure 13 yes Figure 12 Another structural diagram.

[0099] like Figure 13 As shown, in some embodiments, along the airflow outward direction, the width of the outer air panel 21 is L, and the width of the inner air panel 22 is h, where h ≥ 1 / 3L, meaning the ratio of the width of the inner air panel 22 to the width of the outer air panel 21 is greater than or equal to 1 / 3. By ensuring h ≥ 1 / 3L, the inner air panel 22 has sufficient width, allowing the airflow guide channel 20 to have sufficient length, enabling the airflow from the outlet 12 to flow smoothly through the airflow guide channel 20. This forces an increase in airflow pressure and velocity within the airflow guide channel 20, thereby increasing the airflow velocity at the outlet 12 and enhancing the penetration of the airflow. If h is less than 1 / 3L, the length of the airflow guide channel 20 is insufficient, potentially leading to a less significant increase in airflow pressure and velocity.

[0100] In some embodiments, h is in the range of h≤1 / 2L, that is, the ratio of the width of the inner air panel 22 to the width of the outer air panel 21 is less than or equal to 1 / 2. By keeping h≤1 / 2L, the air guide channel 20 can be prevented from being too long. If h>1 / 2L, the air outlet range of the air guide channel 20 will be narrowed, and the effect of increasing air pressure will not be significant.

[0101] In some embodiments, h ranges from 1 / 3L to 1 / 2L, meaning the ratio of the width of the inner air panel 22 to the width of the outer air panel 21 ranges from 1 / 3 to 1 / 2. By ensuring the ratio of the width of the inner air panel 22 to the width of the outer air panel 21 is between 1 / 3 and 1 / 2, the air guide channel 20 can have sufficient width to increase the wind speed at the air outlet 12 and enhance the penetration of the airflow. Simultaneously, it avoids the air guide channel 20 being too long, preventing insufficient increases in wind pressure and velocity.

[0102] like Figure 13 As shown, in some embodiments, the outer air panel 21 can have an arc-shaped structure. The outer surface of the outer air panel 21 can have a circular arc surface structure, and the central angle corresponding to the outer surface of the outer air panel 21 is θ. The central angle corresponding to the arc surface of the inner air panel 22 is greater than 1.4θ. In this way, the arc surface of the inner air panel 22 can have sufficient curvature, thereby forcing an increase in airflow pressure and airflow velocity within the air guide channel 20.

[0103] In some embodiments, the central angle corresponding to the arcuate surface of the inner air vane 22 is less than 2θ. This avoids the arcuate surface of the inner air vane 22 being too large, which would result in insufficient length of the air guide channel 20 and prevent the increase in air pressure and velocity of the flowing air from being insufficient.

[0104] In some embodiments, the central angle corresponding to the arcuate surface of the inner air panel 22 is between 1.4θ and 2θ. In this way, the arcuate surface of the inner air panel 22 has sufficient curvature, while avoiding excessive curvature of the arcuate surface of the inner air panel 22, which would result in insufficient length of the air guide channel 20.

[0105] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing, which forms the outer casing of the indoor unit of the air conditioner; The casing is equipped with an air outlet; An air guide plate is rotatably disposed at the air outlet; the air guide plate includes: An external air panel is rotatably mounted at the air outlet; An inner air panel is spaced apart on the side of the outer air panel closest to the inside of the housing, and an air guide channel is formed between the inner air panel and the outer air panel; Wherein, at least a portion of the airflow blown out from the air outlet can flow through the air guide channel and out along the outer air panel; The inner air panel is arranged in an arc shape protruding towards the air guide channel, so that the width of the air guide channel gradually decreases and then gradually increases along the airflow outward direction.

2. The indoor unit of the air conditioner as described in claim 1, characterized in that, Along the airflow outward direction, the inner air panel includes a first arc segment and a second arc segment connected in sequence; Along the airflow outward direction, the distance between the first arc segment and the outer wind panel gradually decreases, while the distance between the second arc segment and the outer wind panel gradually increases.

3. The indoor unit of the air conditioner as described in claim 2, characterized in that, A compression section is formed between the first arc segment and the second arc segment, and the compression section has a circular arc transition.

4. The indoor unit of the air conditioner as described in claim 1, characterized in that, The inner air panel has a recessed clearance groove on the side away from the outer air panel, and the clearance groove and the air guide channel are respectively located on opposite sides of the inner air panel.

5. The indoor unit of the air conditioner as described in claim 1, characterized in that, Along the airflow outward direction, the width of the inner air panel is smaller than the width of the outer air panel; The inner air panel is located on the inner side of the outer air panel near the air outlet, and the air guide channel is formed between the outer air panel near the air outlet and the inner air panel.

6. The indoor unit of the air conditioner as described in claim 5, characterized in that, Along the airflow outward direction, the ratio of the width of the inner air panel to the width of the outer air panel ranges from 1 / 3 to 1 / 2.

7. The indoor unit of the air conditioner as described in claim 5, characterized in that, The outer air panel has an arc-shaped structure, and the central angle of the outer surface of the outer air panel is θ. The central angle corresponding to the arc-shaped surface of the inner air panel is between 1.4θ and 2θ.

8. The indoor unit of the air conditioner as described in claim 1, characterized in that, The air guide plate includes: A connecting plate is disposed between the inner air panel and the outer air panel; one end of the connecting plate is connected to the inner air panel, and the other end is connected to the outer air panel; The connecting plate is provided in at least two locations, and the at least two connecting plates are respectively located at both ends of the inner air plate along its length. The air guide channel is formed between the inner air plate, the outer air plate, and the two connecting plates.

9. The indoor unit of the air conditioner as described in claim 8, characterized in that, A rotating shaft is provided on the side of one of the connecting plates away from the other connecting plate, and the air guide plate is rotatably connected to the air outlet through the rotating shaft.

10. The indoor unit of the air conditioner as described in claim 8, characterized in that, The external air panel extends along the length of the air outlet; The inner air panel extends along the length of the outer air panel. The inner air panel is provided in multiple ways, and the multiple inner air panels are arranged at intervals along the length direction of the outer air panel. An interval is formed between adjacent inner air panels, and the interval is formed between two connecting plates at corresponding ends of two adjacent inner air panels; A connecting arm is provided at the air outlet, the connecting arm extends into the interval area, and a connecting plate on one side of the interval area is rotatably connected to the connecting arm.

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