Indoor unit and air conditioner

Abstract

The utility model provides an indoor unit and an air conditioner. The indoor unit comprises a shell. A fan; a filtering structure; the indoor unit has a first state that the air inlet of the draught fan communicates with the air opening through the filtering area, and further has a second state that the air outlet of the draught fan communicates with the air opening through the avoiding area. According to the indoor unit and the air conditioner, the avoiding area is arranged on the filtering structure, the fan air outlet of the fan can be directly communicated with the air opening through the avoiding area, when the air opening serves as the air outlet, the filtering structure cannot hinder air outlet of the fan air outlet, and the air outlet effect of the indoor unit is guaranteed; and meanwhile, the filtering structure is further provided with a filtering area, so that the air inlet of the fan can only communicate with the air opening through the filtering area, and when the air opening serves as the air inlet, air must be filtered by the filtering area and can enter the indoor unit, so that the working reliability of the indoor unit is guaranteed.

Description

Technical Field

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

[0002] In some related technologies, the indoor unit of the air conditioner uses horizontal side airflow. In heating mode, the hot air is blown out horizontally. Because hot air has a lower density, it rises, and since people's heat needs are at a height of 1.6 meters or below, the hot air is difficult to deliver to the area where people are active, resulting in poor heating performance. In other related technologies, a downward airflow method is used. In cooling mode, the cold air blows directly on people, resulting in poor comfort.

[0003] Existing technologies typically employ fan reversal to achieve reverse airflow, enabling the indoor unit to simultaneously deliver horizontal and vertical air. However, since dust and other impurities in the air can affect the normal operation of the indoor unit, a filter structure needs to be installed at the air outlet to filter the air. However, the existing filter structure cannot meet the airflow direction requirements of the indoor unit. In particular, when the air outlet with the filter structure is used as the air outlet, the filter structure will increase the air resistance of the indoor unit, seriously affecting its working efficiency. Utility Model Content

[0004] To address the technical problem that existing filter structures cannot meet the changing airflow direction requirements of indoor units, thus affecting their operating efficiency, an indoor unit and air conditioner are provided that incorporates a clearance area in the filter structure to avoid impacting the fan's airflow and thereby improve operating efficiency.

[0005] An indoor unit, comprising:

[0006] A housing, on which an air vent is provided;

[0007] A fan, wherein the fan is disposed within the housing, and the fan has a fan inlet and a fan outlet;

[0008] A filter structure is disposed between the housing and the fan, and the filter structure is provided with an avoidance area and a filter area;

[0009] The indoor unit has a first state in which the fan inlet is connected to the air outlet through the filter area, and the indoor unit also has a second state in which the fan outlet is connected to the air outlet through the clearance area.

[0010] A communication structure is provided between the fan outlet and the avoidance area; and / or, the edge of the fan outlet is sealed to the edge of the avoidance area.

[0011] The number of the fans is at least two, all of which are arranged side by side, and the avoidance area corresponds one-to-one with each fan.

[0012] The air vent includes a first air vent and a second air vent, and the fan outlet includes a first air outlet and a second air outlet. The indoor unit has a first state in which air enters through the first air vent and exits through the second air outlet connected to the second air vent. The indoor unit also has a second state in which air enters through the second air vent and exits through the first air outlet connected to the first air vent. The filter structure is disposed between the first air vent and the first air outlet, and the first air outlet is connected to the first air vent through the avoidance area. And / or, the filter structure is disposed between the second air outlet and the second air vent, and the second air outlet is connected to the second air vent through the avoidance area.

[0013] The fan includes:

[0014] A fixed volute is provided with a first air outlet and a second air outlet;

[0015] The movable volute is movably disposed within the fixed volute, and the movable volute has a first working state of shielding the first air outlet and avoiding the second air outlet, and the movable volute also has a second working state of avoiding the first air outlet and shielding the second air outlet.

[0016] When the indoor unit is in the first state, the movable volute is in the first working state;

[0017] When the indoor unit is in the second state, the movable volute is in the second working state.

[0018] The fan also includes a baffle plate, which is movably disposed outside the fixed volute, and the baffle plate has a first blocking state located between the second air outlet and the fan inlet, and the baffle plate also has a second blocking state located between the first air outlet and the fan inlet.

[0019] When the indoor unit is in the first state, the baffle is in the first blocking state;

[0020] When the indoor unit is in the second state, the baffle is in the second blocking state.

[0021] The baffle is connected to the movable volute.

[0022] The housing is provided with a mating structure, and when the baffle is in the first blocking state or the second blocking state, the baffle and the mating structure abut against each other.

[0023] The number of fans is at least two, all of which are arranged side by side within the housing, and a baffle is provided between two adjacent fans; and / or, the baffle is provided between the fan located at the end and the housing.

[0024] When the movable volute is in the first working state or the second working state, the movable volute and a portion of the fixed volute form a complete volute-shaped structure.

[0025] The first air outlet is disposed on the bottom wall of the housing, and the second air outlet is disposed on the side wall of the housing; the first air outlet is connected to the outside of the housing through the side wall of the housing, and the second air outlet is connected to the outside of the housing through the bottom wall of the housing.

[0026] An air conditioner, comprising the aforementioned indoor unit.

[0027] The indoor unit and air conditioner provided by this utility model have a clearance area set in the filter structure, and the fan outlet can be directly connected to the air vent through the clearance area. When the air vent is used as an air outlet, the filter structure will not obstruct the airflow from the fan outlet, ensuring the airflow effect of the indoor unit. At the same time, the filter structure also has a filtration area, so that the fan inlet can only be connected to the air vent through the filtration area. When the air vent is used as an air inlet, the gas must be filtered through the filtration area before it can enter the indoor unit to ensure the reliability of the indoor unit. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure of the indoor unit provided in this embodiment of the utility model;

[0029] Figure 2 Another structural schematic diagram of the indoor unit provided in this embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0031] Figure 4 Another schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0032] Figure 5 Another schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0033] Figure 6 A schematic diagram of the structure of the indoor unit without a filter structure and in the first state provided in an embodiment of this utility model;

[0034] Figure 7A schematic diagram of the indoor unit without a filter structure and in the second state provided in an embodiment of this utility model;

[0035] Figure 8 A gas flow diagram of the indoor unit in its first state provided for an embodiment of this utility model;

[0036] Figure 9 A gas flow diagram of the indoor unit in the second state provided for an embodiment of this utility model;

[0037] Figure 10 A schematic diagram of the structure of the fan of the indoor unit provided in this embodiment of the utility model;

[0038] Figure 11 A schematic diagram of the fixed volute and movable volute of the indoor unit provided in an embodiment of this utility model;

[0039] Figure 12 A schematic diagram of the structure of the movable volute and baffle of the indoor unit provided in this embodiment of the utility model;

[0040] Figure 13 A cross-sectional view of the indoor unit in the first state provided in an embodiment of this utility model;

[0041] Figure 14 A cross-sectional view of the indoor unit in the second state provided in an embodiment of this utility model;

[0042] In the picture:

[0043] 1. Housing; 2. Fan; 21. Fan inlet; 3. Filter structure; 31. Clearance area; 32. Filter area; 11. First air outlet; 12. Second air outlet; 22. First air outlet; 23. Second air outlet; 24. Fixed volute; 25. Movable volute; 4. Baffle. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Existing technologies typically employ fan reversal to achieve reverse airflow, enabling the indoor unit to simultaneously deliver horizontal and vertical air. However, dust and other impurities in the air can interfere with the normal operation of the indoor unit, necessitating a filter at the air outlet. However, existing filter structures cannot meet the airflow direction requirements of the indoor unit, especially when the filter outlet is used as the air outlet, as this increases air resistance and severely impacts the unit's efficiency. Therefore, this application provides a... Figures 1 to 14The indoor unit shown includes: a housing 1 with an air vent; a fan 2 disposed within the housing 1, the fan 2 having an air inlet 21 and an air outlet; and a filter structure 3 disposed between the housing 1 and the fan 2, the filter structure 3 having a clearance area 31 and a filter area 32. The indoor unit has a first state in which the air inlet 21 is connected to the air vent through the filter area 32, and a second state in which the air outlet is connected to the air vent through the clearance area 31. An obstacle avoidance area 31 is provided on the filter structure 3, allowing the fan outlet of the fan 2 to directly connect to the air vent through the obstacle avoidance area 31. When the air vent is used as an outlet, the filter structure 3 will not obstruct the airflow from the fan outlet, ensuring the airflow effect of the indoor unit. Simultaneously, the filter structure 3 also has a filter area 32, ensuring that the fan inlet 21 can only connect to the air vent through the filter area 32. When the air vent is used as an inlet, the air must pass through the filter area 32 before entering the indoor unit, ensuring the reliable operation of the indoor unit. The filter structure 3 includes a frame and a filter screen disposed on the frame. The filter screen is not disposed at the frame location corresponding to the obstacle avoidance area 31, but is disposed at the frame location corresponding to the filter area 32. Alternatively, a notch can be provided on the frame, where no filter screen is disposed to form the obstacle avoidance area 31, and a filter screen is disposed inside the frame to form the filter area 32.

[0050] The fan outlet and the avoidance area 31 are connected by a connecting structure. This structure allows the airflow from the fan outlet to flow only through the avoidance area 31 to the outlet, preventing the airflow from flowing through the filter area 32, which would increase wind resistance and cause dust on the filter area 32 to flow into the room through the outlet. This ensures the efficiency and reliability of the indoor unit.

[0051] Alternatively, the edge of the fan outlet can be sealed to the edge of the clearance area 31, thus directly connecting and sealing the fan outlet with the clearance area 31. This ensures that the airflow from the fan outlet can only flow through the clearance area 31 to the air outlet, preventing the airflow from flowing through the filter area 32, which would increase wind resistance and cause dust on the filter area 32 to flow into the room through the air outlet. This ensures the working efficiency and reliability of the indoor unit.

[0052] like Figure 1As shown, there are at least two fans 2, all of which are arranged side by side, and the avoidance area 31 corresponds one-to-one with each fan 2. The rotation axis of the blades of all fans 2 is located on the same straight line. The filter structure 3 is located between the air outlet and all fans 2, and is provided with an avoidance area 31 corresponding to each fan 2. This allows the air outlet of each fan 2 to be connected to the air outlet through the corresponding avoidance area 31, while the air inlet 21 of all fans 2 can only be connected to the air outlet through the filter area 32. This ensures the air output effect of all fans 2, thereby ensuring the working efficiency and reliability of the indoor unit.

[0053] The air vents include a first air vent 11 and a second air vent 12, and the fan outlets include a first air outlet 22 and a second air outlet 23. The indoor unit has a first state where air enters through the first air vent 11 and exits through the second air outlet 23 connected to the second air vent 12. The indoor unit also has a second state where air enters through the second air vent 12 and exits through the first air outlet 22 connected to the first air vent 11. The indoor unit can adjust the airflow direction by either exiting through the first air vent 11 or the second air vent 12 as needed. When the indoor unit is in the first state, the first air vent 11 acts as an air inlet, and the second air vent 12 acts as an air outlet. The air enters the housing 1 through the first air vent 11 and flows to the fan inlet 21, then flows through the second air outlet 23 and is discharged through the second air outlet 12. When the indoor unit is in the second state, the first air vent 11 serves as the air outlet and the second air vent 12 serves as the air inlet. The air enters the housing 1 through the second air outlet 12 and flows to the fan inlet 21, then flows through the first air outlet 22 and is discharged through the first air outlet 11. The fan 2 controls the airflow direction by controlling the opening and closing of the first air outlet 22 and the second air outlet 23, so that the air outlet of the fan 2 can match the air outlet direction of the indoor unit, ensuring the air outlet effect of the indoor unit.

[0054] The filter structure 3 is disposed between the first air vent 11 and the first air outlet 22. The first air outlet 22 is connected to the first air vent 11 through the avoidance area 31. When the indoor unit is in the first state, the airflow of the first air vent 11 can only flow through the filter area 32 to the fan inlet 21. The second air outlet 23 of the fan 2 is connected to the second air vent 12, thereby ensuring the air output efficiency of the fan 2 and the air output efficiency of the indoor unit. When the indoor unit is in the second state, the airflow of the second air vent 12 flows to the fan inlet 21, and then flows through the first air outlet 22 and the avoidance area 31 corresponding to the first air outlet 22 to the first air vent 11 for air output. This reduces the fluid resistance between the first air outlet 22 and the first air vent 11, ensuring the reliability of the indoor unit's gas filtration in the first state and the reliability of its air supply in the second state.

[0055] Alternatively, the filter structure 3 is disposed between the second air outlet 23 and the second air vent 12. The second air outlet 23 is connected to the second air vent 12 through the avoidance area 31. When the indoor unit is in the first state, the airflow from the first air vent 11 flows to the fan inlet 21, while the second air outlet 23 of the fan 2 is connected to the second air vent 12 through the corresponding avoidance area 31, reducing the fluid resistance between the second air outlet 23 and the second air vent 12, thereby ensuring the air output efficiency of the fan 2 and the air output efficiency of the indoor unit. When the indoor unit is in the second state, the airflow from the second air vent 12 can only flow through the filter area 32 to the fan inlet 21, and then through the first air outlet 22 to the first air vent 11 for air output, ensuring the air supply reliability of the indoor unit in the first state and the air filtration reliability in the second state.

[0056] Preferably, two filter structures 3 are provided inside the housing 1. One filter structure 3 is located between the first air outlet 11 and the first air outlet 22, and the first air outlet 22 is connected to the first air outlet 11 through the avoidance area 31. The other filter structure 3 is located between the second air outlet 23 and the second air outlet 12, and the second air outlet 23 is connected to the second air outlet 12 through the avoidance area 31. In this way, the indoor unit can simultaneously ensure good air supply and good filtration effects in both the first and second states.

[0057] To achieve airflow from the fan 2 in different directions, the fan 2 includes: a fixed volute 24, on which a first air outlet 22 and a second air outlet 23 are provided; and a movable volute 25, which is movably disposed within the fixed volute 24. The movable volute 25 has a first working state of shielding the first air outlet 22 and avoiding the second air outlet 23, and a second working state of avoiding the first air outlet 22 and shielding the second air outlet 23. When the indoor unit is in the first state, the movable volute 25 is in the first working state; when the indoor unit is in the second state, the movable volute 25 is in the second working state. By switching the state of the movable volute 25, the airflow of the fan 2 can be controlled to exit from the first air outlet 22 or the second air outlet 23. When the movable volute 25 is in the first working state, it blocks the first air outlet 22, thereby opening the second air outlet 23, allowing the gas entering from the fan inlet 21 to exit through the second air outlet 23. When the movable volute 25 is in the second working state, it blocks the second air outlet 23, thereby opening the first air outlet 22, allowing the gas entering from the fan inlet 21 to exit through the first air outlet 22. The fan 2 can then achieve airflow in different directions according to the arrangement of the first air outlet 22 and the second air outlet 23, achieving the purpose of adjusting the airflow direction of the fan 2. It can also be adjusted according to the airflow direction requirements of the indoor unit to ensure the airflow effect of the indoor unit. Preferably, the fan 2 is a centrifugal fan, and the axis of the centrifugal fan is parallel to the horizontal plane.

[0058] The fan 2 also includes a baffle 4, which is movably disposed outside the fixed volute 24. The baffle 4 has a first blocking state located between the second air outlet 12 and the fan inlet 21, and a second blocking state located between the first air outlet 11 and the fan inlet 21. The baffle 4 is used to switch the connection between the fan inlet 21 and the first air outlet 11 or the connection between the fan inlet 21 and the second air outlet 12, so as to prevent the gas from flowing directly through the outside of the fan 2 and ensure that the gas can only flow through the fan 2, thereby ensuring the air supply effect of the indoor unit.

[0059] When the indoor unit is in the first state, the baffle 4 is in the first blocking state. At this time, the baffle 4 seals the space between the second air vent 12 and the fan inlet 21. The airflow of the first air vent 11 can flow smoothly to the fan inlet 21, but cannot flow through the space between the fans 2 or the space between the fans 2 and the casing 1. At this time, the airflow in the fans 2 can only be discharged through the second air outlet 23 and flow to the second air vent 12 through the corresponding clearance area 31, so that the airflow of the indoor unit can be discharged through the second air outlet 12. At the same time, since the baffle 4 seals the space between the second air vent 12 and the fan inlet 21, the airflow of the second air outlet 23 and the second air vent 12 cannot be sucked in by the fan inlet 21, so as to ensure that the fans 2 can work normally and ensure the reliability of the indoor unit.

[0060] When the indoor unit is in the second state, the baffle 4 is in the second blocking state. At this time, the baffle 4 seals the space between the first air outlet 11 and the fan inlet 21. The airflow of the second air outlet 12 can flow smoothly to the fan inlet 21, but cannot flow through the space between the fans 2 or the space between the fans 2 and the casing 1. At this time, the airflow in the fans 2 can only be discharged through the first air outlet 22 and flow to the first air outlet 11 through the corresponding avoidance area 31, so that the airflow of the indoor unit can be discharged through the first air outlet 11. At the same time, since the baffle 4 seals the space between the first air outlet 11 and the fan inlet 21, the airflow of the first air outlet 22 and the first air outlet 11 cannot be sucked in by the fan inlet 21, so as to ensure that the fans 2 can work normally and ensure the reliability of the indoor unit.

[0061] Optionally, the baffle 4 is connected to the movable volute 25. In this case, the baffle 4 and the movable volute 25 can move synchronously to ensure reliable switching between the first and second states of the indoor unit.

[0062] To improve the shielding effect of the baffle 4, a mating structure is provided inside the housing 1. When the baffle 4 is in the first shielding state or the second shielding state, the baffle 4 abuts against the mating structure. The mating structure facilitates the movement of the baffle 4 and also improves its shielding effect. Preferably, the mating structure consists of three protruding structures inside the housing 1. The baffle 4 can move between the three protruding structures. The three protruding structures include a first protruding structure, a second protruding structure, and a third protruding structure that are arranged in a ring along the rotation axis of the baffle 4. When the baffle 4 is in the first shielding state, the baffle 4 abuts against the first and second protruding structures, and when the baffle 4 is in the second shielding state, the baffle 4 abuts against the second and third protruding structures.

[0063] The number of fans 2 is at least two, and all fans 2 are arranged side by side within the housing 1, with a baffle 4 provided between adjacent fans 2. The baffle 4 is used to adjustably seal the space between the fans 2, and the adjustment of the baffle 4 is synchronized with the adjustment of the movable volute 25, ensuring that the fans 2 can discharge air in the set air outlet direction, thus ensuring the reliability of the indoor unit.

[0064] Similarly, in order to ensure the sealing effect of the space between the fan 2 and the housing 1, the baffle 4 is provided between the fan 2 and the housing 1 at the end to prevent gas from flowing through the space between the fan 2 and the housing 1, ensuring reliable isolation between the first air outlet 11 and the second air outlet 12. The airflow of the first air outlet 11 and the airflow of the second air outlet 12 can only flow to the fan inlet 21, thereby ensuring that the fan 2 can discharge air in the set air outlet direction and ensuring the reliability of the indoor unit.

[0065] When the movable volute 25 is in the first working state or the second working state, a portion of the movable volute 25 and the fixed volute 24 form a complete volute-shaped structure. By forming a complete volute-shaped structure with the movable volute 25 and the fixed volute 24, the airflow is effectively driven and guided, allowing the airflow to smoothly enter the volute-shaped structure through the fan inlet 21, and then flow smoothly to the first outlet 22 or the second outlet 23 after being guided by the volute-shaped structure, and finally discharged from the fan 2, ensuring the working efficiency of the fan 2.

[0066] The first air vent 11 is disposed on the bottom wall of the housing 1, and the second air vent 12 is disposed on the side wall of the housing 1. When the indoor unit is in the first state, the indoor unit realizes downward air return and side air outlet, realizing the horizontal blowing of cold air and avoiding the discomfort caused by direct cold air blowing; when the indoor unit is in the second state, it realizes side air return and downward air outlet, realizing the downward blowing of hot air and improving the heating effect.

[0067] Alternatively, the first air outlet 22 can be connected to the outside of the housing 1 via the side wall of the housing 1 to achieve horizontal blowing of cold air and avoid the discomfort caused by direct blowing of cold air; the second air outlet 23 can be connected to the outside of the housing 1 via the bottom wall of the housing 1 to achieve downward blowing of hot air and improve the heating effect.

[0068] An air conditioner, comprising the aforementioned indoor unit.

[0069] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An indoor unit, characterized in that: include: A housing (1) is provided with an air vent; A fan (2) is disposed inside the housing (1) and has a fan inlet (21) and a fan outlet; A filter structure (3) is disposed between the housing (1) and the fan (2), and the filter structure (3) is provided with a clearance area (31) and a filter area (32); The indoor unit has a first state in which the fan inlet (21) is connected to the air outlet through the filter area (32), and the indoor unit also has a second state in which the fan outlet is connected to the air outlet through the avoidance area (31).

2. The indoor unit according to claim 1, characterized in that: A communication structure is provided between the fan outlet and the clearance area (31); and / or, the edge of the fan outlet is sealed to the edge of the clearance area (31).

3. The indoor unit according to claim 1, characterized in that: The number of the fans (2) is at least two, all the fans (2) are arranged side by side, and the avoidance area (31) corresponds one-to-one with the fans (2).

4. The indoor unit according to claim 1, characterized in that: The air vents include a first air vent (11) and a second air vent (12), and the fan outlets include a first air outlet (22) and a second air outlet (23). The indoor unit has a first state in which air enters through the first air vent (11) and exits through the second air outlet (23) connected to the second air vent (12). The indoor unit also has a second state in which air enters through the second air vent (12) and exits through the first air outlet (22) connected to the first air vent (11). The filter structure (3) is disposed between the first air vent (11) and the first air outlet (22), and the first air outlet (22) is connected to the first air vent (11) through the avoidance area (31). And / or, the filter structure (3) is disposed between the second air outlet (23) and the second air vent (12), and the second air outlet (23) is connected to the second air vent (12) through the avoidance area (31).

5. The indoor unit according to claim 4, characterized in that: The fan (2) includes: A fixed volute (24) is provided with a first air outlet (22) and a second air outlet (23); The movable volute (25) is movably disposed within the fixed volute (24), and the movable volute (25) has a first working state of shielding the first air outlet (22) and avoiding the second air outlet (23), and the movable volute (25) also has a second working state of avoiding the first air outlet (22) and shielding the second air outlet (23); When the indoor unit is in the first state, the movable volute (25) is in the first working state; When the indoor unit is in the second state, the movable volute (25) is in the second working state.

6. The indoor unit according to claim 5, characterized in that: The fan (2) also includes a baffle (4), which is movably disposed outside the fixed volute (24), and the baffle (4) has a first blocking state located between the second air outlet (12) and the fan inlet (21), and the baffle (4) also has a second blocking state located between the first air outlet (11) and the fan inlet (21); When the indoor unit is in the first state, the baffle (4) is in the first blocking state; When the indoor unit is in the second state, the baffle (4) is in the second blocking state.

7. The indoor unit according to claim 6, characterized in that: The baffle (4) is connected to the movable volute (25).

8. The indoor unit according to claim 6, characterized in that: The housing (1) is provided with a mating structure. When the baffle (4) is in the first blocking state or the second blocking state, the baffle (4) abuts against the mating structure.

9. The indoor unit according to claim 6, characterized in that: The number of the fans (2) is at least two, all the fans (2) are arranged side by side in the housing (1), and the baffle (4) is provided between two adjacent fans (2); and / or, the baffle (4) is provided between the fan (2) located at the end and the housing (1).

10. The indoor unit according to claim 5, characterized in that: When the movable volute (25) is in the first working state or in the second working state, the movable volute (25) and a portion of the fixed volute (24) form a complete volute-shaped structure.

11. The indoor unit according to claim 4, characterized in that: The first air vent (11) is disposed on the bottom wall of the housing (1), and the second air vent (12) is disposed on the side wall of the housing (1); the first air outlet (22) is connected to the outside of the housing (1) through the side wall of the housing (1), and the second air outlet (23) is connected to the outside of the housing (1) through the bottom wall of the housing (1).

12. An air conditioner, characterized in that, Including the indoor unit according to any one of claims 1 to 11.

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