An air conditioner indoor unit

Abstract

This utility model discloses an indoor air conditioning unit. The air guiding assembly includes a first air guide, a middle air guide, and a second air guide rotatably mounted at the air outlet. The first air guide includes an arc-shaped air guiding surface. The middle air guide is located between the first and second air guides. When the air guiding assembly is in the closed state, the arc-shaped air guiding surface convexes towards the inner side of the air outlet. The air guiding assembly has a first air outlet state where the first air guide is open and the second and middle air guides are closed, a middle air outlet state where the first, second, and middle air guides are all open, and a second air outlet state. The angle of the first air guide in the middle air outlet state is between that in the first and second air outlet states. The first, second, and third air guides are more inclined towards the second end of the air outlet in the second air outlet state than in the middle air outlet state. Therefore, the air outlet assembly achieves diversity in the flow direction of the airflow through multiple air guides with different swing angles.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, specifically, it relates to an indoor unit of an air conditioner. Background Technology

[0002] When an air conditioner indoor unit is working, the airflow direction is mainly adjusted through the air guide vane. The existing air guide vane structure of air conditioner indoor units is mainly a long strip-shaped single air guide vane. Due to the limitations of the rotational movement of a single air guide vane, within a certain distance, the air conditioner air blows directly onto people in the form of a high-speed wind wall, especially in the air conditioning cooling mode, causing strong discomfort to users.

[0003] To reduce the discomfort caused by direct cold air blowing on users, the main solutions are to reduce the airflow speed of the air conditioner and change the direction of the airflow. A typical example is to set micro-holes in the air guide plate or louvers. However, this design will seriously reduce the air volume of the air conditioner and affect its performance.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] This utility model proposes an indoor air conditioner unit to solve the technical problem that existing air conditioners, which use micro-holes in the air guide plate or louvers to ensure comfort, reduce the air volume output of the air conditioner.

[0006] To achieve the above-mentioned utility model / design objectives, the present utility model adopts the following technical solution:

[0007] An indoor unit for an air conditioner includes:

[0008] case;

[0009] An air outlet is provided on the housing, having a first air outlet end and a second air outlet end opposite to each other;

[0010] The air guide assembly is located at the air outlet;

[0011] The air guiding assembly includes a first air guiding component, an intermediate air guiding component, and a second air guiding component rotatably mounted at the air outlet; the first air guiding component is close to the first end of the air outlet and includes an arc-shaped air guiding surface; the intermediate air guiding component is located between the first air guiding component and the second air guiding component.

[0012] When the air guide assembly is in the closed state, the arc-shaped air guide surface convexes towards the inner side of the air outlet; the second air guide is connected to the second end of the air outlet; the intermediate air guide is connected to the second air guide;

[0013] The air guide assembly has a first air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are closed; a middle air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are open; and a second air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are open.

[0014] The angle of the first air guide in the intermediate air outlet state is between the first air outlet state and the second air outlet state. The second air guide and the intermediate air guide are more inclined toward the second end of the air outlet in the second air outlet state than in the intermediate air outlet state.

[0015] As described above, the air conditioner indoor unit includes an air duct, which includes a first air duct section and a second air duct section arranged opposite to each other. The air guide assembly has a maximum air supply state in the middle air outlet state. In the maximum air supply state, the volume of the first air guide member located below the extended surface of the first air duct section is the smallest, and the middle air guide member and the second air guide member are in the position of minimum air resistance.

[0016] In the air conditioner indoor unit described above, when the second air guide is opened, an air outlet gap is formed between the second air guide and the second end of the air outlet.

[0017] As described above, in the indoor unit of the air conditioner, the second air guide includes a second connecting end connected to the second end of the air outlet when the air guide assembly is closed, and a first connecting end connected to the intermediate air guide. The rotation position of the second air guide is close to the first connecting end, and when the second air guide rotates, the second connecting end of the second air guide moves away from the second end of the air outlet.

[0018] As described above, in the indoor unit of the air conditioner, the intermediate air guide includes a first end near the first air guide when the air guide assembly is closed. The intermediate air guide is arc-shaped. When the air guide assembly is closed, the intermediate air guide protrudes outward from the air outlet. The angle between the cross-section of the intermediate air guide at the first end and the connection surface between the first end and the first end of the air outlet is between 30 degrees and 60 degrees.

[0019] As described above, in the indoor unit of the air conditioner, the first air guide includes a closed surface opposite to the arc-shaped air guide surface. When the air guide assembly is in the closed state, the closed surface is located between the housing and the intermediate air guide to form the outer surface of the first air guide.

[0020] As described above, in the indoor unit of the air conditioner, the arc-shaped air guide surface is a circular arc surface, and the angle between the tangent of the circular arc surface and the line connecting the two ends of the circular arc surface is between 0 degrees and 30 degrees.

[0021] As described above, in the air conditioner indoor unit, when the air conditioner indoor unit is in the cooling state and the air guide assembly is in the air outlet state, there is an air outlet gap between the first air guide component and the intermediate air guide component.

[0022] As described above, the indoor unit of the air conditioner has a leak-proof structure between the second air guide and the second end of the air outlet.

[0023] In the air conditioner indoor unit as described above, the second air guide overlaps with the second end of the air outlet, and the overlap length between the second air guide and the second end of the air outlet is greater than 3mm.

[0024] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The indoor unit of the air conditioner includes a housing, an air outlet, and an air guide assembly. The air outlet is opened on the housing and has a first air outlet end and a second air outlet end opposite to each other. The air guide assembly is located at the air outlet and includes a first air guide component, a middle air guide component, and a second air guide component rotatably mounted at the air outlet. The first air guide component is close to the first end of the air outlet and includes an arc-shaped air guide surface. The middle air guide component is located between the first and second air guide components. When the air guide assembly is in the closed state, the arc-shaped air guide surface convexes towards the inner side of the air outlet. The second air guide component is connected to the second end of the air outlet. The middle air guide component... Connected to the second air guide component; the air guide assembly has a first air outlet state where the first air guide component rotates to a position where the arc-shaped air guide surface convex towards the middle air guide component, and the second and middle air guide components are closed; a second air outlet state where the first air guide component rotates to a position where the arc-shaped air guide surface convex towards the middle air guide component, and the second and middle air guide components are open; and a third air outlet state where the first air guide component rotates to a position where the arc-shaped air guide surface convex towards the middle and second air guide components, and the middle air guide components are open. The angle of the first air guide component in the second air outlet state is between the first and second air outlet states, and the first, second, and third air guide components are more inclined towards the second end of the air outlet in the second air outlet state than in the second air outlet state. Therefore, the air outlet assembly of the indoor air conditioning unit achieves diverse airflow directions through multiple air guide components with different swing angles, enabling normal air outlet in the second air outlet state while avoiding the first air outlet state and the second air outlet state facing the human body, thus diversifying the air outlet patterns and providing users with better comfort.

[0025] Other features and advantages of this utility model will become clearer after reading the specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a longitudinal sectional view of the air guide assembly of the indoor unit of the air conditioner in the closed state according to a specific embodiment of this utility model.

[0028] Figure 2 This is a longitudinal sectional view of the air guide assembly of the indoor unit of the air conditioner in the first air outlet state according to a specific embodiment of this utility model.

[0029] Figure 3 This is a longitudinal sectional view of the air guide assembly of the indoor unit of the air conditioner in the middle air outlet state according to a specific embodiment of this utility model.

[0030] Figure 4 This is a longitudinal sectional view of the air guide assembly of the indoor unit of the air conditioner in the second air outlet state according to a specific embodiment of this utility model.

[0031] Figure 5 This is a schematic diagram of the structure of the second air guide component and the second end of the air outlet overlapping in a specific embodiment of this utility model.

[0032] Figure 6 This is a schematic diagram of the air outlet effect of the air guide component of the air conditioner indoor unit in the first air outlet state according to a specific embodiment of this utility model.

[0033] Figure 7 This is a schematic diagram illustrating the airflow effect of the air guide component of the indoor unit of the air conditioner in the middle air outlet state according to a specific embodiment of this utility model.

[0034] Figure 8 This is a schematic diagram of the air outlet effect of the air guide component of the indoor unit of the air conditioner in the second air outlet state, according to a specific embodiment of this utility model.

[0035] Figure 9 This is a schematic diagram of the first air guide component in a specific embodiment of this utility model.

[0036] In the picture:

[0037] 11. Front panel; 12. Bottom panel;

[0038] 2. Air outlet;

[0039] 31. First air guide component; 311. Arc-shaped air guide surface; 312. Sealed surface; 32. Second air guide component; 33. Intermediate air guide component;

[0040] 41. First air duct section; 42. Second air duct section; 43. Arc-shaped air duct section;

[0041] 5. Overlapping steps. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0045] 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.

[0046] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] An air conditioner indoor unit includes a casing, an air inlet and an air outlet on the casing, an indoor heat exchanger and an indoor fan inside the casing, an air guide assembly at the air outlet, and an air duct inside the casing.

[0048] The air guide assembly is used to direct the airflow at the air outlet to meet different airflow requirements.

[0049] The air outlet of the indoor unit of the air conditioner is a long strip-shaped outlet, and the air guide component is also long strip-shaped.

[0050] The indoor unit of the air conditioner is a wall-mounted unit. Of course, the indoor unit of the air conditioner can also be a floor-standing unit.

[0051] The following is in conjunction with the appendix Figure 1-9 Taking a wall-mounted air conditioner as an example, the indoor unit of the air conditioner will be explained in detail:

[0052] The indoor unit of the air conditioner includes a casing, an air outlet 2, and an air guide assembly.

[0053] The housing includes a top panel, a front panel 11, a rear panel, a bottom panel 12, and left and right panels.

[0054] An air inlet is provided on the top panel.

[0055] Air outlet 2 is formed on the housing, and air outlet 2 has a first air outlet end and a second air outlet end opposite to each other. The first air outlet end and the second air outlet end are located in the length direction of air outlet 2.

[0056] The air outlet 2 also has a third air outlet end and a fourth air outlet end. The third air outlet end and the fourth air outlet end are located in the width direction of the air outlet 2.

[0057] The first end of the air outlet, the third end of the air outlet, the second end of the air outlet, and the fourth end of the air outlet are connected in sequence to form air outlet 2.

[0058] The first end of the air outlet is formed at the bottom of the front panel 11, and the second end of the air outlet is formed at the end of the lower panel 12 near the front panel 11.

[0059] The air guide component is located at air outlet 2 and is used to guide the airflow at air outlet 2.

[0060] The air guide assembly includes a first air guide 31, an intermediate air guide 33, and a second air guide 32 that are rotatably mounted at the air outlet 2.

[0061] The first air guide 31, the middle air guide 33, and the second air guide 32 are all long strips, and their lengths are adapted to the length of the air outlet 2.

[0062] The first air guide 31 is located near the first end of the air outlet, that is, the first air guide 31 is located near the front panel 11. The second air guide 32 is located near the second end of the air outlet, that is, the second air guide 32 is located near the lower panel 12.

[0063] The intermediate air guide 33 is located between the first air guide 31 and the second air guide 32.

[0064] That is, in the vertical direction of the air outlet 2, the first air guide 31, the middle air guide 33 and the second air guide 32 are arranged from top to bottom.

[0065] The first air guide 31 includes an arc-shaped air guide surface 311, which mainly guides the airflow at the air outlet through the arc-shaped air guide surface 311.

[0066] When the air guide assembly is in the closed state, the arc-shaped air guide surface 311 protrudes towards the inner side of the air outlet 2; the second air guide 32 is connected to the second end of the air outlet; the intermediate air guide 33 is connected to the second air guide 32;

[0067] The air guide assembly being in the closed state means that the air guide assembly closes the air outlet 2. At this time, the second air guide 32 is connected to the second end of the air outlet, the middle air guide 33 is connected to the second air guide 32, and the first air guide 31 is very close to the first end of the air outlet and the middle air guide 33 with only a certain rotation gap to ensure the normal rotation of the first air guide 31.

[0068] The air guide assembly has a first air outlet state, an intermediate air outlet state, and a second air outlet state.

[0069] The first air outlet mode is used to achieve upward airflow, meaning that the air from air outlet 2 is mainly directed upwards towards the indoor unit of the air conditioner. This is particularly suitable for cooling mode, where the cold air blows upwards, quickly cooling the upper part of the space where the indoor unit is located. Since cold air naturally sinks, people also feel cool and comfortable, avoiding direct airflow that could harm the body and improving comfort. Of course, other modes of the air conditioner (dehumidification mode, heating mode, fan mode, etc.) can also select the first air outlet mode according to user needs.

[0070] The middle air outlet state is used to achieve normal angle air outlet, that is, to let the air outlet 2 blow directly into the indoor space.

[0071] The second air outlet state is used to achieve downward airflow, that is, the air outlet 2 mainly blows the air downwards towards the indoor unit of the air conditioner. This is especially suitable for heating mode, where the hot air blows downwards, quickly warming the lower part of the space where the indoor unit is located, without blowing directly on people, thus improving comfort. Of course, other modes of the air conditioner (dehumidification mode, cooling mode, air supply mode, etc.) can also be selected in the first air outlet state according to user needs.

[0072] The air guide assembly has a first air outlet state in which the first air guide 31 rotates to the arc-shaped air guide surface 311 protruding towards the middle air guide 33, and the second air guide 32 and the middle air guide 33 are closed.

[0073] The air guide assembly has a middle air outlet state in which the first air guide 31 rotates to the arc-shaped air guide surface 311 protruding towards the middle air guide 33, and the second air guide 32 and the middle air guide 33 are opened.

[0074] The air guide assembly has a second air outlet state in which the first air guide 31 rotates to the arc-shaped air guide surface 311 protruding towards the middle air guide 33, and the second air guide 32 and the middle air guide 33 are open.

[0075] In the middle air outlet state, the angle of the first air guide 31 is between the first air outlet state and the second air outlet state. The second air guide 32 and the middle air guide 33 are more inclined towards the second end of the air outlet in the second air outlet state than in the middle air outlet state, that is, more inclined towards the lower panel 12, so as to realize the upward air outlet in the first air outlet state, the normal air outlet in the middle air outlet state, and the downward air outlet in the second air outlet state.

[0076] In the first air outlet state, the second air guide 32 and the intermediate air guide 33 are closed. The first air guide 31 rotates until the arc-shaped air guide surface 311 convexes towards the intermediate air guide 33, and the end of the first air guide 31 outside the air outlet is closer to the front panel 11. That is, the arc-shaped air guide surface 311 of the first air guide 31 is inclined upward. Therefore, an upward-sloping air outlet gap is formed between the first air guide 31 and the intermediate air guide 33. The air outlet 2 mainly blows upward through the gap between the intermediate air guide 33 and the arc-shaped air guide surface 311, directly blowing towards the upper space of the space where the indoor unit of the air conditioner is located. There is a small air outlet gap between the first air guide 31 and the first end of the air outlet. A small amount of airflow can be discharged through this air outlet gap. Of course, when the distance between the first air guide 31 and the upper wall of the air duct is very small or even in contact, this air outlet gap can be ignored, and no airflow flows out from here.

[0077] In the first air outlet state, the first air guide 31 is opened at a specific angle, while the middle air guide 33 and the second air guide 32 are closed. The airflow flows upward along the inner surface of the second air guide 32 and the middle air guide 33 and adheres to the arc-shaped air guide surface 311 of the first air guide 31 due to the Coanda effect, significantly increasing the upward angle.

[0078] In the middle air outlet state, the first air guide 31 rotates until the arc-shaped air guide surface 311 convexes towards the middle air guide 33, the second air guide 32, and the middle air guide 33 open. At this time, the first air guide 31, the middle air guide 33, and the second air guide 32 are basically parallel to the air outlet 2 to achieve downward air outlet. Air outlet gaps are formed between the first air guide 31 and the middle air guide 33, between the middle air guide 33 and the second air guide 32, and between the second air guide 32 and the lower panel 12. The air outlet 2 mainly blows downwards through the above-mentioned air outlet gaps, directly blowing into the space where the indoor unit of the air conditioner is located. There is a small air outlet gap between the first air guide 31 and the first end of the air outlet, through which a small amount of airflow can be discharged. Of course, when the distance between the first air guide 31 and the upper wall of the air duct is very small or even in contact, this air outlet gap can be ignored, and no airflow flows out from here.

[0079] In the second air outlet state, the first air guide 31 rotates until the arc-shaped air guide surface 311 convexes towards the middle air guide 33, the second air guide 32, and the middle air guide 33. At this time, the ends of the first air guide 31, the middle air guide 33, and the second air guide 32 located outside the air outlet 2 are closer to the lower panel 12, that is, the first air guide 31, the middle air guide 33, and the second air guide 32 are tilted downwards. Therefore, air outlet gaps close to the vertical direction are formed between the first air guide 31 and the middle air guide 33, between the middle air guide 33 and the second air guide 32, and between the second air guide 32 and the lower panel 12. The air outlet 2 mainly blows downwards through the above-mentioned air outlet gaps, directly blowing towards the lower space of the space where the indoor unit of the air conditioner is located. There is a small air outlet gap between the first air guide 31 and the first end of the air outlet. A small amount of airflow can be discharged through this air outlet gap. Of course, when the distance between the first air guide 31 and the upper wall of the air duct is very small or even in contact, this air outlet gap can be ignored and no airflow will flow out from here.

[0080] In the second air outlet state, the first air guide 31 opens at a specific angle, and the middle air guide 33 and the second air guide 32 open to a near-vertical position to maximize the vertical downward airflow function.

[0081] Of course, in order to facilitate the rotation of the first air guide 31 and to minimize the modification of the air duct, the upper wall of the air duct near the air outlet 2 is set as a concave arc-shaped air duct section 43.

[0082] In the schematic diagram of this embodiment, when the first air guide 31, the intermediate air guide 33, and the second air guide 32 are opened from the closed state, they all rotate clockwise.

[0083] The first air guide 31 rotates a first angle from the closed state to the first air outlet state, rotates a second angle from the closed state to the middle air outlet state, and rotates a third angle from the closed state to the second air outlet state. Therefore, the first angle > the second angle > the third angle.

[0084] If the intermediate air guide 33 rotates a fourth angle from the closed state to the intermediate air outlet state, and rotates a fifth angle from the closed state to the second air outlet state, then the fourth angle is greater than the fifth angle.

[0085] The second air guide 32 rotates by a sixth angle from the closed state to the middle air outlet state, and rotates by a seventh angle from the closed state to the second air outlet state. Therefore, the sixth angle is greater than the seventh angle.

[0086] In some embodiments, the first air outlet state is when the first air guide 31 rotates 70-110 degrees from the closed state.

[0087] When the air outlet is in the middle, the first air guide 31, the middle air guide 33, and the second air guide 32 are rotated from the closed state by 45 degrees to 70 degrees, 80 degrees to 130 degrees, and 100 degrees to 150 degrees, respectively.

[0088] In the second air outlet state, the first air guide 31, the middle air guide 33, and the second air guide 32 are rotated from the closed state by 30-45 degrees, 70-80 degrees, and 90-100 degrees respectively.

[0089] The indoor unit of the air conditioner includes an air duct connected to the air outlet 2. The air duct includes a first air duct section 41 and a second air duct section 42 arranged opposite to each other. The first air duct section 41 is part of the upper air duct wall and is connected to the arc-shaped air duct section 43. The first air duct section 41 and the arc-shaped air duct section 43 form the upper air duct wall, and the second air duct section 42 is the lower air duct wall.

[0090] The air guide assembly's intermediate air outlet state has a maximum air supply state to achieve maximum air volume. For example... Figure 3 As shown, in the maximum air supply state, the first air guide 31 has the smallest volume below the extended surface of the first air duct 41, and the middle air guide 33 and the second air guide 32 are in the position of minimum wind resistance, so as to reduce the obstruction of airflow and achieve maximum air output.

[0091] In some embodiments, the maximum airflow state is that the first air guide 31, the intermediate air guide 33, and the second air guide 32 are rotated from the closed state by 65-70 degrees, 115-120 degrees, and 145-150 degrees, respectively.

[0092] In the maximum air supply state, the first air guide 31, the intermediate air guide 33, and the second air guide 32 are all located outside the air outlet 2 or mostly outside the air outlet 2, avoiding intrusion into the air supply airflow area of ​​the air duct, thereby avoiding affecting the air volume and generating abnormal noise. In particular, the second air guide 32 is mostly outside the air duct, which can reduce air volume loss and increase the maximum air volume at the same fan speed.

[0093] When the second air guide 32 is opened, an air outlet gap is formed between the second air guide 32 and the second end of the air outlet, that is, an air outlet gap is formed between the second air guide 32 and the lower panel 12.

[0094] The second air guide 32 includes a second connecting end connected to the second end of the air outlet when the air guide assembly is closed, and a first connecting end connected to the intermediate air guide 33. The rotational position of the second air guide 32 is close to the first connecting end, and a second rotating shaft is provided near the first connecting section. The second air guide 32 rotates around the second rotating shaft. When the second air guide 32 rotates, the second connecting end of the second air guide 32 moves away from the second end of the air outlet, which can reduce the amount of air entering the air duct when the second air guide 32 rotates and increase the airflow guidance to the outside of the air outlet 2.

[0095] The intermediate air guide 33 includes a first end close to the first air guide 31 when the air guide assembly is closed. In order to improve the upward airflow effect and smoothness of the first air outlet state, the intermediate air guide 33 is arc-shaped. When the air guide assembly is closed, the intermediate air guide 33 protrudes to the outside of the air outlet 2. The angle between the cross-section of the intermediate air guide at the first end and the connection surface between the first end and the first end of the air outlet is between 30 degrees and 60 degrees.

[0096] An intermediate rotating shaft is set at a position near the center of the arc where the intermediate air guide 33 is located, and the intermediate air guide 33 rotates around the intermediate rotating shaft.

[0097] In order to improve the smoothness of airflow and appearance of the first air guide 31, the first air guide 31 includes a closed surface 312 opposite to the arc-shaped air guide surface 311. When the air guide assembly is in the closed state, the closed surface 312 is located between the front panel 11 of the housing and the middle air guide 33 to form the outer surface of the first air guide 31.

[0098] The arc-shaped air guide surface 311 and the closed surface 312 are smoothly connected by a transition surface.

[0099] A first rotating shaft is provided near the centerline of the arc-shaped air guide surface 311, and the first air guide component 31 rotates around the first rotating shaft.

[0100] like Figure 9 As shown, the arc-shaped air guide surface 311 is an arc surface, and the angle θ between the tangent of the arc surface and the line connecting the two ends of the arc surface is between 0 degrees and 30 degrees to improve the air guiding effect.

[0101] In some embodiments, the arc-shaped air guide surface 311 and the closed surface 312 are directly connected.

[0102] To prevent condensation from forming on the air guide components when the indoor unit of the air conditioner is in cooling mode, there is always an air outlet gap between the first air guide 31 and the middle air guide 33 when the indoor unit is in cooling mode and the air guide components are in air outlet mode. The airflow can wrap around the middle air guide 33. Since the air outlet components are all wrapped by cold air, the occurrence of condensation on the air guide components can be reduced.

[0103] Especially in cooling mode, the air leakage generated between the second air guide 32 and the lower panel 12 can cause discomfort to the human body. In order to avoid air leakage between the second air guide 32 and the lower panel 12, there is an air leakage prevention structure between the second air guide 32 and the second end of the air outlet to prevent air leakage from the gap and direct airflow to the human body, which would cause discomfort.

[0104] The second air guide 32 overlaps with the second end of the air outlet, and the overlap length between the second air guide 32 and the second end of the air outlet is greater than 3mm to ensure the air leakage prevention effect.

[0105] That is, the second air guide 32 overlaps with the lower panel 12. In order to ensure the air leakage prevention effect and improve the aesthetics of the second air guide 32 in the closed state, an overlap step 5 is provided at both the second air guide 32 and the lower panel 12. When the second air guide 32 is in the closed state, the bottom surface of the second air guide 32 is flush with the bottom surface of the lower panel 12.

[0106] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An indoor unit for an air conditioner, comprising: case; An air outlet is provided on the housing, having a first air outlet end and a second air outlet end opposite to each other; The air guide assembly is located at the air outlet; The air guiding assembly is characterized in that it includes a first air guiding component, an intermediate air guiding component, and a second air guiding component rotatably mounted at the air outlet; the first air guiding component is close to a first end of the air outlet and includes an arc-shaped air guiding surface; the intermediate air guiding component is located between the first air guiding component and the second air guiding component. When the air guide assembly is in the closed state, the arc-shaped air guide surface convexes towards the inner side of the air outlet; the second air guide is connected to the second end of the air outlet; the intermediate air guide is connected to the second air guide; The air guide assembly has a first air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are closed; a middle air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are open; and a second air outlet state in which the first air guide is rotated to a state where the arc-shaped air guide surface convex towards the intermediate air guide, the second air guide, and the intermediate air guide are open. The angle of the first air guide in the intermediate air outlet state is between the first air outlet state and the second air outlet state. The second air guide and the intermediate air guide are more inclined toward the second end of the air outlet in the second air outlet state than in the intermediate air outlet state. 2.The indoor unit of the air conditioner according to claim 1, characterized by, The air conditioner includes an air duct, which includes a first air duct section and a second air duct section arranged opposite to each other. The air guide assembly has a maximum air supply state in the middle air outlet state. In the maximum air supply state, the volume of the first air guide member located below the extended surface of the first air duct section is the smallest, and the middle air guide member and the second air guide member are in the position of minimum air resistance. 3.The indoor unit of the air conditioner according to claim 1, characterized by, When the second air guide is opened, an air outlet gap is formed between the second air guide and the second end of the air outlet. 4.The indoor unit of the air conditioner according to claim 3, characterized by, The second air guide includes a second connecting end connected to the second end of the air outlet when the air guide assembly is closed, and a first connecting end connected to the intermediate air guide. The rotation position of the second air guide is close to the first connecting end. When the second air guide rotates, the second connecting end of the second air guide moves away from the second end of the air outlet. 5.The indoor unit of the air conditioner according to claim 1, characterized by, The intermediate air guide includes a first end close to the first air guide when the air guide assembly is closed. The intermediate air guide is arc-shaped. When the air guide assembly is closed, the intermediate air guide protrudes outward from the air outlet. The angle between the cross-section of the intermediate air guide at the first end and the connection surface between the first end and the first end of the air outlet is between 30 degrees and 60 degrees. 6.The indoor unit of the air conditioner according to claim 1, characterized by, The first air guide includes a closed surface opposite to the arc-shaped air guide surface. When the air guide assembly is in the closed state, the closed surface is located between the housing and the intermediate air guide to form the outer surface of the first air guide. 7.The indoor unit of the air conditioner according to claim 1, characterized by, The arc-shaped air guide surface is a circular arc surface, and the angle between the tangent of the circular arc surface and the line connecting the two ends of the circular arc surface is between 0 degrees and 30 degrees. 8.The indoor unit of the air conditioner according to claim 1, characterized by, When the indoor unit of the air conditioner is in cooling mode and the air guide assembly is in air outlet mode, there is an air outlet gap between the first air guide and the intermediate air guide. 9.The indoor unit of the air conditioner according to any one of claims 1-8, wherein The second air guide component has a leak-proof structure between itself and the second end of the air outlet. 10.The indoor unit of the air conditioner according to claim 8, characterized in that, The second air guide overlaps with the second end of the air outlet, and the overlap length between the second air guide and the second end of the air outlet is greater than 3mm.

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