Indoor units and air conditioners

Abstract

This utility model provides an indoor unit and an air conditioner. The indoor unit includes: a housing; an air outlet assembly disposed at the air outlet, the air outlet assembly having an indoor connection port and a fan connection port; and an air guide plate disposed within the air outlet assembly, the air guide plate being able to guide the airflow from the fan connection port to the indoor connection port. The indoor unit and air conditioner provided by this utility model utilize the air guide plate within the air outlet assembly to connect the air outlet connection port of the air outlet assembly with the fan outlet, ensuring that all the airflow from the fan flows through the fan connection port to the indoor connection port. Simultaneously, the air guide plate can guide this portion of the airflow, preventing turbulence within the air outlet assembly, effectively reducing the noise problem caused by turbulence in the prior art, and ensuring that all airflow can be smoothly delivered into the room, effectively improving the working efficiency of the indoor unit.

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 reverse fan control to achieve reverse airflow from the indoor unit, enabling it to simultaneously deliver horizontal and vertical air. Since the same vent needs to meet both intake and exhaust requirements while maintaining the unit's aesthetic appearance, the vent connecting the indoor unit to the room is often elongated. Furthermore, the width of the fan's outlet is greater than the vent's width, causing some airflow to become blocked near the outlet. This creates turbulence within the indoor unit, leading to increased noise and reduced efficiency. Utility Model Content

[0004] In order to solve the technical problem that the width of the air outlet is smaller than the width of the fan outlet in the existing technology, which causes airflow blockage, increases indoor unit noise and reduces working efficiency, an indoor unit and air conditioner are provided that uses an air guide plate to guide the airflow to avoid airflow blockage, thereby reducing turbulence noise and improving working efficiency.

[0005] An indoor unit, comprising:

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

[0007] An air vent assembly is disposed at the air vent, and the air vent assembly has an indoor connection port and a fan connection port;

[0008] An air guide plate is disposed within the air outlet assembly, and the air guide plate is capable of guiding the airflow from the fan connection port to the indoor connection port.

[0009] The air outlet assembly is also provided with a fan return air outlet, and a return air flow channel is formed between the indoor connection opening and the fan return air outlet.

[0010] The indoor unit has a first state in which airflow sequentially passes through the fan connection port and the indoor connection port to deliver air, and a second state in which airflow sequentially passes through the indoor connection port and the fan return air port to receive air.

[0011] When the indoor unit is in the first state, the air guide plate is in a first position that can guide the airflow from the fan connection port to the indoor connection port;

[0012] When the indoor unit is in the second state, the air guide plate is in a second position that avoids the return airflow channel;

[0013] The air guide plate can move freely between the first position and the second position.

[0014] The air vent assembly includes a housing with a first side and a second side facing each other. The first side has an indoor connection port, and the second side has a fan connection port and a fan return air port. The air guide plate is rotatably disposed inside the housing. When the air guide plate is in the first position, the air guide plate and the housing together form an air outlet channel. The indoor connection port and the fan connection port are both connected to the air outlet channel.

[0015] The first side and the second side are arranged opposite to each other, and the flow area of ​​the fan connection port is greater than the flow area of ​​the indoor connection port. When the air guide plate is in the first position, the width of the air outlet channel gradually decreases from the fan connection port to the indoor connection port.

[0016] The air guide plate is rotatably disposed on the first side and is located on one side of the indoor connection opening. When the air guide plate is in the first position, the free end of the air guide plate abuts against the second side; when the air guide plate is in the second position, the air guide plate is attached to the first side.

[0017] The indoor unit also includes a drive structure, which is connected to the air guide plate and can drive the air guide plate to move between the first position and the second position.

[0018] The indoor unit also includes:

[0019] A fan is disposed inside the housing. The fan has a fan inlet and a fan outlet, and the fan outlet is connected to the fan communication port.

[0020] When the indoor unit is in the first state, the airflow is discharged from the indoor unit through the fan outlet, the fan connection port and the indoor connection port;

[0021] When the indoor unit is in the second state, airflow enters the fan through the indoor connection port, the fan return air port, and the fan inlet.

[0022] The indoor unit also includes a filter structure, which is disposed on the air outlet assembly. The filter structure has a clearance area and a filter area. The clearance area is connected to the fan connection port, and the filter area is connected to the fan return air port.

[0023] The filter structure forms the side of the air outlet assembly, the clearance area forms the fan connection port, and the filter area forms the fan return air port.

[0024] The air vent includes a first air vent and a second air vent, the fan outlet includes a first air outlet and a second air outlet, the air vent assembly is disposed at the first air vent, and the fan connection port is connected to the first air outlet.

[0025] When the indoor unit is in the first state, the indoor connection port, the fan return air port and the fan air inlet are interconnected for air intake, and the second air outlet is interconnected with the second air outlet for air exhaust.

[0026] When the indoor unit is in the second state, air is drawn in through the second air vent, and air is discharged through the first air outlet, the fan connection port, and the indoor connection port.

[0027] The filter structure is disposed between the indoor connection port and the first air outlet, and the first air outlet is connected to the indoor connection port through the avoidance area.

[0028] The air vent includes a first air vent and a second air vent, the fan outlet includes a first air outlet and a second air outlet, the air vent assembly is disposed at the second air vent, and the fan connection port is connected to the second air outlet.

[0029] When the indoor unit is in the first state, air is drawn in through the first air vent, and air is discharged through the second air vent, the fan connection port, and the indoor connection port.

[0030] When the indoor unit is in the second state, the indoor connection port, the fan return air port and the fan air inlet are interconnected for air intake, and the first air outlet and the first air vent are interconnected for air outlet.

[0031] The filter structure is disposed between the indoor connection port and the second air outlet, and the second air outlet is connected to the indoor connection port through the avoidance area.

[0032] The fan includes:

[0033] A fixed volute is provided with a first air outlet and a second air outlet;

[0034] 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.

[0035] When the indoor unit is in the first state, the movable volute is in the first working state;

[0036] When the indoor unit is in the second state, the movable volute is in the second working state.

[0037] 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.

[0038] When the indoor unit is in the first state, the baffle is in the first blocking state;

[0039] When the indoor unit is in the second state, the baffle is in the second blocking state.

[0040] The baffle is connected to the movable volute.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] A communication structure is provided between the fan outlet and the clearance area; and / or, the edge of the fan outlet is sealed to the edge of the clearance area.

[0047] An air conditioner, comprising the aforementioned indoor unit.

[0048] The indoor unit and air conditioner provided by this utility model replace the air vents on the casing with an indoor connection port of the air vent assembly. This allows for direct adjustment of the shape of the indoor unit's orientation towards the interior without modifying the air vents on the casing, thereby improving the aesthetics of the indoor unit while minimizing modifications to the casing. Furthermore, by utilizing the air guide plate within the air vent assembly to connect the air vent connection port of the air vent assembly with the fan's air outlet, the airflow from the fan flows through the fan connection port to the indoor connection port. Simultaneously, the air guide plate guides this airflow, preventing turbulence within the air vent assembly and effectively reducing the noise problem caused by turbulence in the prior art. It also ensures that all airflow can be smoothly delivered into the room, effectively improving the working efficiency of the indoor unit. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of the air vent assembly provided in an embodiment of the present utility model;

[0050] Figure 2 A schematic diagram of the air outlet assembly provided in this embodiment of the utility model for air outlet discharge;

[0051] Figure 3 A schematic diagram of the air outlet assembly for air return provided in this embodiment of the utility model;

[0052] Figure 4 A schematic diagram of the air guide plate in the first position of the air outlet assembly provided in this embodiment of the utility model;

[0053] Figure 5 A schematic diagram of the air guide plate in the second position of the air outlet assembly provided in this embodiment of the utility model;

[0054] Figure 6 A schematic diagram of the structure of the indoor unit provided in this embodiment of the utility model;

[0055] Figure 7 Another structural schematic diagram of the indoor unit provided in this embodiment of the utility model;

[0056] Figure 8 A schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0057] Figure 9 Another schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0058] Figure 10 Another schematic diagram of the filter structure of the indoor unit provided in this embodiment of the utility model;

[0059] Figure 11 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;

[0060] Figure 12 A schematic diagram of the indoor unit without a filter structure and in the second state provided in an embodiment of this utility model;

[0061] Figure 13 A gas flow diagram of the indoor unit in its first state provided for an embodiment of this utility model;

[0062] Figure 14 A gas flow diagram of the indoor unit in the second state provided for an embodiment of this utility model;

[0063] Figure 15 A schematic diagram of the structure of the fan of the indoor unit provided in this embodiment of the utility model;

[0064] Figure 16 A schematic diagram of the fixed volute and movable volute of the indoor unit provided in an embodiment of this utility model;

[0065] Figure 17 A schematic diagram of the structure of the movable volute and baffle of the indoor unit provided in this embodiment of the utility model;

[0066] Figure 18 A cross-sectional view of the indoor unit in the first state provided in an embodiment of this utility model;

[0067] Figure 19 A cross-sectional view of the indoor unit in the second state provided in an embodiment of this utility model;

[0068] In the picture:

[0069] 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; 5. Air outlet assembly; 51. Indoor connection port; 52. Fan connection port; 6. Air guide plate; 53. Fan return air outlet; 54. Housing; 55. First side; 56. Second side; 7. Drive structure. Detailed Implementation

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] Existing technologies typically employ reverse fan control to achieve reverse airflow from the indoor unit, enabling it to simultaneously deliver horizontal and vertical air. Since the same vent needs to meet both intake and exhaust requirements while maintaining the unit's aesthetic appearance, the vent connecting the indoor unit to the room is often elongated. Furthermore, the width of the fan's outlet is greater than the vent's width, causing some airflow to become blocked near the outlet. This creates turbulence within the indoor unit, leading to increased noise and reduced efficiency.

[0076] Therefore, this application provides a method such as Figures 1 to 19 The indoor unit shown includes: a housing 1, on which an air vent is provided; and an air vent assembly 5, which is disposed at the air vent and has an indoor connection port 51 and a fan connection port 52. The indoor connection port 51 is used to connect with the indoor unit. To maintain the aesthetics of the indoor unit, the indoor connection port 51 is designed to be elongated, meaning its length-to-width ratio is large. The fan connection port 52 is used to connect with the air outlet of the indoor unit's fan. The shape of the fan connection port 52 is the same as that of the fan outlet. In order to ensure the working efficiency of the fan, the fan casing restricts the length-to-width ratio of the fan outlet to be much smaller than that of the indoor connection port 51. Therefore, the width of the fan connection port 52 (the width of the fan outlet) will be greater than the width of the indoor connection port 51. The air guide plate 6 is disposed in the air outlet assembly 5 and can guide the airflow of the fan connection port 52 to the indoor connection port 51. By replacing the air vent on the housing 1 with the indoor connection port 51 of the air vent assembly 5, the shape of the indoor unit facing inward can be directly adjusted without modifying the air vent on the housing 1. This improves the aesthetics of the indoor unit while minimizing modifications to the housing 1. Furthermore, by utilizing the air guide plate 6 within the air vent assembly 5, the air vent connection port of the air vent assembly 5 can be connected to the fan outlet, allowing the fan's airflow to flow through the fan connection port 52 to the indoor connection port 51. At the same time, the air guide plate 6 can guide this airflow, preventing turbulence within the air vent assembly 5. This effectively reduces the noise problem caused by turbulence in the prior art and ensures that all airflow can be smoothly delivered into the room, effectively improving the working efficiency of the indoor unit.

[0077] To achieve reversible air supply in the indoor unit, meaning it can simultaneously deliver air horizontally and vertically, the air vents of the indoor unit need to simultaneously provide both air intake and exhaust. Therefore, the air vent assembly 5 is also equipped with a fan return air vent 53. An air return channel is formed between the indoor connection port 51 and the fan return air vent 53. The fan return air vent 53 of the air vent assembly 5 can draw indoor air into the indoor unit's fan through the indoor connection port 51 and the air return channel, thus achieving the purpose of air intake for the indoor unit from the air vents located in the air vent assembly 5. The indoor unit has a first state where airflow sequentially passes through the fan connection port 52 and the indoor connection port 51 for air supply, and a second state where airflow sequentially passes through the indoor connection port 51 and the fan return air vent 53 for air intake. By utilizing the first and second states of the indoor unit, the purpose of reversible air outlet of the indoor unit can be achieved. The air inlet and outlet directions of the indoor unit in the first state are completely opposite to those in the second state. For example, when the indoor unit is in the first state, it is a side return air outlet with downward airflow, while when the indoor unit is in the second state, it is a bottom return air outlet with side airflow.

[0078] When the indoor unit is in the first state, the air guide plate 6 is in a first position that can guide the airflow from the fan connection port 52 to the indoor connection port 51. At this time, the airflow is blown from the inside of the indoor unit through the fan connection port 52 to the indoor connection port 51. By setting the first position of the air guide plate 6, the air guide plate 6 can guide the airflow from the fan connection port 52 to the indoor connection port 51, thereby overcoming the problem of turbulence caused by some airflow being blocked near the indoor connection port 51 in the prior art, effectively reducing the noise of the indoor unit and improving the working efficiency of the indoor unit.

[0079] When the indoor unit is in the second state, the air guide plate 6 is in the second position to avoid the return air flow channel. At this time, the airflow is drawn into the air outlet assembly 5 from the indoor connection port 51 and enters the return air flow channel. That is, the airflow flows from the indoor connection port 51 to the fan return air port 53. The second position of the air guide plate 6 is set so that the air guide plate 6 will not block the airflow from the indoor connection port 51 to the fan return air port 53, thereby ensuring the working efficiency of the indoor unit.

[0080] The air guide plate 6 is freely movable between the first position and the second position. The movement of the air guide plate 6 can both guide the airflow from the fan connection port 52 to the indoor connection port 51 and avoid the airflow from the indoor connection port 51 to the fan return air port 53, thus ensuring smooth operation of the indoor unit in both the first and second states. It should be noted that the return airflow channel is the space between the indoor connection port 51 and the fan return air port 53, and there are no other structures forming the flow channel. When the air guide plate 6 is in the second position, it is not located between the indoor connection port 51 and the fan return air port 53, allowing the airflow to flow smoothly from the indoor connection port 51 to the fan return air port 53 without being blocked by the air guide plate 6, thereby reducing airflow resistance and further improving the operating efficiency of the indoor unit.

[0081] In one embodiment, the air vent assembly 5 includes a housing 54, which has a first side 55 and a second side 56 facing each other. The first side 55 has an indoor connection port 51, and the second side 56 has a fan connection port 52 and a fan return air port 53. The air guide plate 6 is rotatably disposed within the housing 54. When the air guide plate 6 is in the first position, the air guide plate 6 and the housing 54 together form an airflow channel. Both the indoor connection port 51 and the fan connection port 52... With the airflow channel, the first side 55 of the outer casing 54 forms the side of the indoor unit facing the room, while the second side 56 can connect with the side where the air outlet of the indoor unit is located, and connect the fan connection port 52 with the fan outlet of the fan in the indoor unit. When the air guide plate 6 is in the first position, the air guide plate 6 will connect the fan connection port 52 and the indoor connection port 51, that is, the air guide plate 6 forms a side wall of the airflow channel, thereby forcing the airflow to flow towards the indoor connection port 51, so as to achieve the purpose of guiding the airflow.

[0082] Preferably, the first side 55 and the second side 56 are arranged opposite to each other, so that the fan connection port 52 and the indoor connection port 51 are also arranged opposite to each other. When the air guide plate 6 is in the first position, the width of the air outlet channel gradually decreases from the fan connection port 52 to the indoor connection port 51, thereby achieving the purpose of converging the airflow to the indoor connection port 51.

[0083] The outer casing 54 also has a third side and a fourth side located between the first side 55 and the second side 56. The third side and the fourth side are arranged opposite to each other, and the first end of the air guide plate 6 along its length is sealed to the third side, and the second end of the air guide plate 6 along its length is sealed to the fourth side. This ensures the airtightness of the air outlet channel relative to the interior of the outer casing 54, ensuring that the airflow from the fan connection port 52 flows through the air outlet channel to the indoor connection port 51. The length direction of the indoor connection port 51 is from the third side to the fourth side.

[0084] Guide blocks are provided on the third and / or fourth side, and guide grooves are provided on the end face of the air guide plate 6. By using the cooperation of the guide blocks and guide grooves, the movement path of the air guide plate 6 can be restricted, ensuring the reliability of the movement of the air guide plate 6 between the first and second positions.

[0085] Preferably, the air guide plate 6 is rotatably disposed on the first side 55, and the air guide plate 6 is located on one side of the indoor connection port 51. When the air guide plate 6 is in the first position, the free end of the air guide plate 6 abuts against the second side 56. At this time, the air guide plate 6 can achieve a sealed separation between the first side 55 and the second side 56, thereby ensuring the airflow channel is sealed relative to the inside of the outer casing 54. When the air guide plate 6 is in the second position, the air guide plate 6 is attached to the first side 55, and the air guide plate 6 will not obstruct the flow of air from the indoor connection port 51 to the fan return air port 53.

[0086] In order to achieve automatic control of the air guide plate 6, the indoor unit also includes a drive structure 7, which is connected to the air guide plate 6 in a transmission manner, and the drive structure 7 can drive the air guide plate 6 to move between the first position and the second position. Through the action of the drive structure 7, the air guide plate 6 can be automatically adjusted according to the working mode of the indoor unit.

[0087] The indoor unit further includes a fan 2, which is disposed within the housing 1. The fan 2 has a fan inlet 21 and a fan outlet, and the fan outlet is connected to the fan connection port 52. When the indoor unit is in the first state, the airflow is discharged from the indoor unit through the fan outlet, the fan connection port 52, and the indoor connection port 51. At this time, the indoor unit achieves the first type of air supply and return state, such as side return air and bottom air outlet. When the indoor unit is in the second state, the airflow enters the fan 2 through the indoor connection port 51, the fan return air port 53, and the fan inlet 21. At this time, the indoor unit achieves the second type of air supply and return state, such as bottom return air and side air outlet.

[0088] The indoor unit also includes a filter structure 3, which is disposed on the air outlet assembly 5. The filter structure 3 has a clearance area 31 and a filtering area. The clearance area 31 is connected to the fan connection port 52, and the filtering area is connected to the fan return air port 53. By setting the clearance area 31 on the filter structure 3, and allowing the fan outlet of the fan 2 to directly connect to the fan connection port 52 through the clearance area 31, when the fan connection port 52 is used as an air outlet, the filter structure 3 will not obstruct the airflow from the fan outlet, ensuring the airflow effect of the indoor unit. At the same time, the filter structure 3 also has a filtering area, so that the fan inlet 21 can only connect to the fan connection port 52 through the filtering area. When the fan connection port 52 is used as an air inlet, the air must be filtered through the filtering area before entering the indoor unit to ensure the reliability of the indoor unit.

[0089] 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 avoidance area 31, but is disposed at the frame location corresponding to the filter area. Alternatively, a notch can be provided in the frame, where the avoidance area 31 is formed without a filter screen, and the filter area is formed by disposing of a filter screen inside the frame.

[0090] Optionally, the filter structure 3 forms the side of the air outlet assembly 5, the clearance area 31 forms the fan connection port 52, and the filter area forms the fan return air port 53. Specifically, the filter structure 3 can form the second side 56 of the air outlet assembly 5.

[0091] In one implementation, the air vent includes a first air vent 11 and a second air vent 12, and the fan outlet includes a first air outlet 22 and a second air outlet 23. The air vent assembly 5 is disposed at the first air vent 11, and the fan connection port 52 is connected to the first air outlet 22. The indoor unit can adjust the air outlet direction by either discharging air through the first air vent 11 or the second air vent 12 as needed. When the indoor unit is in the first state, the indoor connection port 51, the fan return air vent 53, and the fan inlet 21 are interconnected for air intake, and the second air outlet 23 is connected to the second air vent 12 for air outlet discharge. Gas enters the fan 2 from the room sequentially through the indoor connection port 51, the fan return air vent 53, and the fan inlet 21, and is then blown out through the second air outlet 23 of the fan 2, and finally through the second air vent 12. When the indoor unit is in the second state, air is introduced through the second air vent 12, and air is discharged through the first air outlet 22, the fan connection port 52, and the indoor connection port 51. The air enters the fan 2 from the room through the second air vent 12 and the fan inlet 21, and is then blown out through the first air outlet 22 of the fan 2, and is sent back to the room through the fan connection port 52 and the indoor connection port 51. The filter structure 3 is disposed between the indoor connection port 51 and the first air outlet 22. The first air outlet 22 is connected to the indoor connection port 51 through the avoidance area 31. The airflow of the first air outlet 22 can flow to the indoor connection port 51 through the avoidance area 31. When the avoidance area 31 constitutes the indoor connection port 51, the airflow of the first air outlet 22 flows directly to the indoor connection port 51 through the filter structure 3.

[0092] In another implementation, the air vent includes a first air vent 11 and a second air vent 12, and the fan outlet includes a first air outlet 22 and a second air outlet 23. The air vent assembly 5 is disposed at the second air vent 12, and the fan connection port 52 is connected to the second air outlet 23. The indoor unit can adjust the air outlet direction by either discharging air through the first air vent 11 or the second air vent 12 as needed. When the indoor unit is in the first state, air enters through the first air vent 11, and air is discharged through the second air outlet 23, the fan connection port 52, and the indoor connection port 51. Gas enters the fan 2 from the room through the first air vent 11 and the fan inlet 21, and is then blown out and returned to the room by the second air outlet 23, the fan connection port 52, and the indoor connection port 51. When the indoor unit is in the first state, air enters through the first air vent 11 and the fan inlet 21, and is then blown out and returned to the room by the second air outlet 23, the fan connection port 52, and the indoor connection port 51. In the second state, the indoor connection port 51, the fan return air port 53, and the fan inlet 21 are interconnected for air intake, and the first air outlet 22 and the first air vent 11 are interconnected for air outlet. Airflow enters the fan 2 from the room through the indoor connection port 51, the fan return air port 53, and the fan inlet 21, and is then blown out by the first air outlet 22 of the fan 2, and finally sent back to the room through the first air vent 11. The filter structure 3 is disposed between the indoor connection port 51 and the second air outlet 23. The second air outlet 23 is connected to the indoor connection port 51 through the avoidance area 31. The airflow of the second air outlet 23 can flow to the indoor connection port 51 through the avoidance area 31. When the avoidance area 31 constitutes the indoor connection port 51, the airflow of the second air outlet 23 flows directly to the indoor connection port 51 through the filter structure 3.

[0093] 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 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. 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 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 2, and the axis of the centrifugal fan 2 is parallel to the horizontal plane.

[0094] 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.

[0095] 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 44 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.

[0096] 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 clearance 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, thereby ensuring that the fans 2 can work normally and ensuring the reliability of the indoor unit.

[0097] The baffle 4 is connected to the movable volute 25. At this time, 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.

[0098] 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.

[0099] The number of fans 2 is at least two. All fans 2 are arranged side by side in the housing 1, and a baffle 4 is provided between two adjacent fans 2. The baffle 4 is used to adjust and block the space between the fans 2. The adjustment of the baffle 4 is synchronized with the adjustment of the movable volute 25 to ensure that the fans 2 can discharge air in the set air discharge direction and ensure the reliability of the indoor unit.

[0100] 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.

[0101] 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.

[0102] 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 11. 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.

[0103] 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.

[0104] The number of fans 2 is at least two, and all fans 2 are arranged side by side. The avoidance area 31 corresponds one-to-one with each fan 2. The rotation axis of the fan 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 an avoidance area 31 corresponding to each fan 2 is provided. This allows the air outlet of each fan 2 to be connected to the air outlet through the corresponding avoidance area 31. At the same time, the air inlet 21 of all fans 2 can only be connected to the air outlet through the filter area, thereby ensuring the air output effect of all fans 2, and thus ensuring the working efficiency and reliability of the indoor unit.

[0105] Since the filter structure 3 can form the second side 56 of the air outlet assembly 5, the avoidance area 31 directly constitutes the fan connection port 52. In order to ensure the reliability of the air intake and exhaust of the fan 2, a connection structure is provided between the fan outlet and the avoidance area 31. The connection structure connects the fan outlet and the avoidance area 31, so that the airflow of the fan outlet can only flow to the air outlet through the avoidance area 31. This avoids the problem of increased wind resistance caused by the airflow of the fan outlet flowing through the filter area and the dust on the filter area flowing into the room through the air outlet, thus ensuring the working efficiency and reliability of the indoor unit.

[0106] 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 and causing increased wind resistance, as well as dust on the filter area flowing into the room through the air outlet. This ensures the working efficiency and reliability of the indoor unit.

[0107] An air conditioner, comprising the aforementioned indoor unit.

[0108] 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 by: include: A housing (1) is provided with an air vent; Air vent assembly (5), the air vent assembly (5) is disposed at the air vent, and the air vent assembly (5) has an indoor connection port (51) and a fan connection port (52); Air guide plate (6) is disposed in the air outlet assembly (5) and the air guide plate (6) can guide the airflow of the fan connection port (52) to the indoor connection port (51).

2. The indoor unit of claim 1, characterized in that: The air outlet assembly (5) is also provided with a fan return air outlet (53), and a return air flow channel is formed between the indoor connection opening (51) and the fan return air outlet (53); The indoor unit has a first state in which airflow is delivered through the fan connection port (52) and the indoor connection port (51) in sequence, and a second state in which airflow is received through the indoor connection port (51) and the fan return air port (53) in sequence; When the indoor unit is in the first state, the air guide plate (6) is in a first position that can guide the airflow of the fan connection port (52) to the indoor connection port (51); When the indoor unit is in the second state, the air guide plate (6) is in a second position that avoids the return airflow channel; The air guide plate (6) can move freely between the first position and the second position.

3. The indoor unit of claim 2, characterized in that: The air vent assembly (5) includes a housing (54), which has a first side (55) and a second side (56) facing each other. The first side (55) is provided with the indoor connection port (51), and the second side (56) is provided with the fan connection port (52) and the fan return air port (53). The air guide plate (6) is rotatably disposed inside the housing (54). When the air guide plate (6) is in the first position, the air guide plate (6) and the housing (54) together form an air outlet channel. The indoor connection port (51) and the fan connection port (52) are both connected to the air outlet channel.

4. The indoor unit of claim 3, characterized in that: The first side (55) and the second side (56) are arranged opposite to each other. When the air guide plate (6) is in the first position, the width of the air outlet channel gradually decreases from the fan connection port (52) to the indoor connection port (51).

5. The indoor unit of claim 3, characterized in that: The air guide plate (6) is rotatably disposed on the first side (55), and the air guide plate (6) is located on one side of the indoor connection port (51). When the air guide plate (6) is in the first position, the free end of the air guide plate (6) abuts against the second side (56); when the air guide plate (6) is in the second position, the air guide plate (6) is attached to the first side (55).

6. The indoor unit of claim 2, characterized in that: The indoor unit also includes a drive structure (7), which is connected to the air guide plate (6) and can drive the air guide plate (6) to move between the first position and the second position.

7. The indoor unit of claim 2, characterized in that: The indoor unit also includes: Fan (2), the fan (2) is disposed inside the housing (1), the fan (2) has a fan inlet and a fan outlet, the fan outlet is connected to the fan communication port (52); When the indoor unit is in the first state, the airflow is discharged from the indoor unit through the fan outlet, the fan connection port (52) and the indoor connection port (51); When the indoor unit is in the second state, the airflow enters the fan (2) through the indoor connection port (51), the fan return air port (53) and the fan inlet.

8. The indoor unit of claim 7, characterized in that: The indoor unit also includes a filter structure (3), which is disposed on the air outlet assembly (5). The filter structure (3) is provided with a clearance area (31) and a filter area. The clearance area (31) is connected to the fan connection port (52), and the filter area is connected to the fan return air port (53).

9. The indoor unit of claim 8, characterized in that: The filter structure (3) forms the side of the air outlet assembly (5), the clearance area (31) forms the fan connection port (52), and the filter area forms the fan return air port (53).

10. The indoor unit of claim 8, characterized in that: The air vent includes a first air vent (11) and a second air vent (12), the fan outlet includes a first air outlet (22) and a second air outlet (23), the air vent assembly (5) is disposed at the first air vent (11), and the fan connection port (52) is connected to the first air outlet (22). When the indoor unit is in the first state, the indoor connection port (51), the fan return air port (53) and the fan air inlet are connected to each other to receive air, and the second air outlet (23) is connected to the second air outlet (12) to discharge air. When the indoor unit is in the second state, the second air vent (12) takes in air, and the first air outlet (22), the fan connection port (52) and the indoor connection port (51) are interconnected to output air. The filter structure (3) is disposed between the indoor connection port (51) and the first air outlet (22), and the first air outlet (22) is connected to the indoor connection port (51) through the avoidance area (31). 11.The indoor unit of claim 8, characterized in that: The air vent includes a first air vent (11) and a second air vent (12), the fan outlet includes a first air outlet (22) and a second air outlet (23), the air vent assembly (5) is disposed at the second air vent (12), and the fan connection port (52) is connected to the second air outlet (23). When the indoor unit is in the first state, the first air inlet (11) receives air, and the second air outlet (23), the fan connection port (52) and the indoor connection port (51) are interconnected to discharge air. When the indoor unit is in the second state, the indoor connection port (51), the fan return air port (53) and the fan air inlet are connected to each other to receive air, and the first air outlet (22) and the first air outlet (11) are connected to each other to discharge air. The filter structure (3) is disposed between the indoor connection port (51) and the second air outlet (23), and the second air outlet (23) is connected to the indoor connection port (51) through the avoidance area (31). 12.The indoor unit according to claim 10 or 11, characterized by: 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.

13. The indoor unit of claim 12, 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, and the baffle (4) also has a second blocking state located between the first air outlet (11) and the fan inlet; 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.

14. The indoor unit of claim 13, characterized in that: The baffle (4) is connected to the movable volute (25).

15. The indoor unit of claim 13, 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. 16.The indoor unit of claim 13, 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).

17. The indoor unit of claim 12, 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.

18. The indoor unit of claim 12, characterized by: 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).

19. The indoor unit of claim 8, characterized by: 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).

20. The indoor unit of claim 8, characterized by: The fan air outlet and the avoiding area (31) are provided with a communication structure; and / or, the edge of the fan air outlet and the edge of the avoiding area (31) are in sealing fit.

21. An air conditioner characterized by comprising: The indoor unit comprises the indoor unit according to any one of claims 1 to 20.

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