Ducted air conditioner and air conditioner

Abstract

The utility model provides a duct type air conditioner and an air conditioner. The duct type air conditioner comprises a shell. A partition structure is arranged between every two adjacent fan assemblies of the at least two fan assemblies; the fan assembly comprises a fixed volute; a movable volute; and a baffle. According to the duct type air conditioner and the air conditioner, the movable volute is used for adjusting the first air outlet and the second air outlet in the fixed volute, and therefore air can be discharged from the first air outlet of the fixed volute and can also be discharged from the second air outlet of the fixed volute; meanwhile, the baffle is used for separating the air inlet of the draught fan from the first air opening or the second air opening, the working reliability of the duct type air conditioner is guaranteed, the problem that the air outlet direction of the duct type air conditioner can be adjusted only by changing the rotating direction of the draught fan in the prior art is solved, and the duct type air conditioner can obtain reliable air volume in the refrigerating mode or the heating mode; and the heat exchange efficiency of the duct type air conditioner is ensured.

Description

Technical Field

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

[0002] In some related technologies, ducted air conditioners use horizontal lateral 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, cold air is blown directly onto people, resulting in poor comfort.

[0003] Existing technologies typically employ reverse fan rotation to achieve reverse airflow from the indoor unit, enabling it to simultaneously deliver horizontal and vertical air. However, the airflow is relatively small when the fan rotates in reverse. If the ducted air conditioner is cooling when the fan is rotating forward, it needs to rotate in reverse to heat, resulting in poor heating capacity. Similarly, if the ducted air conditioner is heating when the fan is rotating forward, it needs to rotate in reverse to cool, also resulting in poor cooling capacity. Both solutions severely impact the heat exchange efficiency of the ducted air conditioner. Utility Model Content

[0004] To address the technical problem that reverse fan rotation in existing technologies cannot guarantee the heat exchange efficiency of ducted air conditioners, a ducted air conditioner and air conditioner are provided that utilizes a movable volute to adjust the air supply direction without adjusting the fan rotation direction to ensure heat exchange efficiency.

[0005] A ducted air conditioner, comprising:

[0006] A housing, on which a first air vent and a second air vent are provided;

[0007] At least two fan assemblies are arranged side by side in the housing (1), and a partition structure is provided between two adjacent fan assemblies;

[0008] The wind turbine assembly includes:

[0009] A fixed volute is disposed inside the housing, and the fixed volute is provided with a fan inlet, at least one first outlet and at least one second outlet, wherein the first outlet is connected to the first air outlet and the second outlet is connected to the second air outlet.

[0010] The movable volute is disposed inside the fixed volute, and the movable volute has a first working state of closing the first air outlet and opening the second air outlet, and the movable volute also has a second working state of closing the second air outlet and opening the first air outlet.

[0011] A baffle is disposed inside the housing, and the baffle has a first shielding state that isolates the fan inlet and the first air outlet, and the baffle also has a second shielding state that isolates the fan inlet and the second air outlet.

[0012] The partition structure includes a partition plate, the edge of which is sealed to the adjacent fixed volute and the corresponding inner wall of the housing.

[0013] There is a gap between two adjacent fan components. The fixed volute is provided with a common air outlet, which is connected to the gap. When the movable volute is in the first working state or the second working state, the movable volute avoids the common air outlet. When the movable volute is in the first working state, the common air outlet forms a second air outlet. The partition is located between the common air outlet and the first air outlet. When the movable volute is in the second working state, the common air outlet forms a first air outlet, and the partition is located between the common air outlet and the second air outlet.

[0014] The partition structure further includes a guide plate, and there is a gap between two adjacent fan assemblies. The first air outlet includes a first side air outlet with the airflow direction facing the gap, and the second air outlet includes a second side air outlet with the airflow direction facing the gap. The guide plate is disposed within the gap, and the guide plate is located between the first side air outlets of the two fan assemblies or between the second side air outlets of the two fan assemblies.

[0015] The fan inlet is located on the end face of the fixed volute, and there is a first distance between the end face of the fixed volute and the inner wall of the housing. The baffle moves within the first distance.

[0016] The housing has a first side plate, the first air outlet is disposed on the first side plate, the fan inlet faces the first side plate, and the projection of the fan inlet on the first side plate at least partially overlaps with the first air outlet.

[0017] The fan assembly also includes a cover plate, which is disposed at the end of the baffle away from the fixed volute. The shape of the cover plate is the same as the projection of the fan inlet on the first side plate and the overlapping shape of the first air outlet. When the baffle is in the first shielding state, the cover plate is located between the fan inlet and the first air outlet.

[0018] The cross-section of the fan inlet is circular, and the cross-section of the baffle is arc-shaped, with the arc-shaped baffle and the circular baffle arranged coaxially.

[0019] The ducted air handling unit also includes a flow guiding structure, which is disposed inside the housing and divides the interior of the housing into at least one first air duct and at least one second air duct. The first air duct corresponds one-to-one with the first air outlet, and each first air outlet is connected to the first air outlet through the corresponding first air duct. The second air duct corresponds one-to-one with the second air outlet, and each second air outlet is connected to the second air outlet through the corresponding second air duct.

[0020] The movable volute includes a shielding part. When the movable volute is in the first working state, the shielding part shields the first air outlet and avoids the second air outlet; when the movable volute is in the second working state, the shielding part shields the second air outlet and avoids the first air outlet.

[0021] The fan assembly also includes a fan blade, which is rotatably disposed within the fixed volute. The shielding portion has an arc-shaped cross-section, and its thickness gradually increases along the rotation direction of the fan blade.

[0022] The minimum gap between the shielding part and the fan blade is a1, where 8mm < a1 < 15mm.

[0023] The movable volute also includes a flow guide, which is spaced apart from the shielding part. A first air outlet channel is formed between the first end of the flow guide and the second end of the shielding part, and a second air outlet channel is formed between the second end of the flow guide and the first end of the shielding part. When the movable volute is in the first working state or in the second working state, the corresponding parts of the flow guide and the fixed volute overlap each other.

[0024] The fan assembly also includes a fan blade, which is rotatably disposed within the fixed volute. The cross-section of the guide section is arc-shaped, and the thickness of the guide section gradually increases along the rotation direction of the fan blade.

[0025] The minimum gap between the guide section and the fan blade is a2, 1.5a1 < a2 < 2a1, where a1 is the minimum gap between the shielding section and the fan blade.

[0026] The relationship between the central angle α corresponding to the first air outlet channel, the central angle β corresponding to the guide section, and the central angle γ corresponding to the second air outlet channel is: α+β+γ≤180°.

[0027] The line connecting the central axis of the fixed volute and the midpoint of the guide section constitutes the installation positioning line of the fixed volute. The vertical planes perpendicular to each other on the plane where the second air outlet is located constitute the positioning surface of the housing. The angle c between the installation positioning line of at least one of the fan components and the positioning surface is in the range of 15°≤c≤25°.

[0028] The rotation angle d1 of the movable volute is in the range of 150° to 180°; and / or, the rotation angle d2 of the movable volute in the fan assembly provided with the common air outlet is in the range of 110° to 130°.

[0029] The number of fan assemblies is two, including a left fan assembly and a right fan assembly. The airflow from at least one first air outlet of the left fan assembly flows through the left end of the first air outlet, and the airflow from at least one second air outlet of the left fan assembly flows through the left end of the second air outlet. The airflow from at least one first air outlet of the right fan assembly flows through the right end of the first air outlet, and the airflow from at least one second air outlet of the right fan assembly flows through the right end of the second air outlet.

[0030] The first air outlet is located on the bottom wall of the housing, and the second air outlet is located 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.

[0031] The fixed volute and the movable volute together form a complete volute-shaped structure.

[0032] The ducted air handling unit has a first state in which the first air outlet serves as a return air outlet and the second air outlet serves as an air outlet, and a second state in which the first air outlet serves as an air outlet and the second air outlet serves as a return air outlet.

[0033] When the duct unit is in the first state, the movable volute is in the first working state, and the baffle is in the second shielding state.

[0034] When the duct unit is in the second state, the movable volute is in the second working state, and the baffle is in the first shielding state.

[0035] An air conditioner, including the aforementioned ducted unit.

[0036] The ducted air conditioner and air purifier provided by this utility model utilize a movable volute to adjust the first and second air outlets on the fixed volute. This allows the fixed volute to discharge air through the first air outlet, enabling the air conditioner to discharge air through the first air outlet. Alternatively, the fixed volute can discharge air through the second air outlet, allowing the air conditioner to discharge air through the second air outlet. Simultaneously, a baffle isolates the fan inlet from either the first or second air outlet, ensuring that the air conditioner operates at the first air outlet. When the first air inlet is used as the air inlet, gas can only flow into the fan air inlet from the second air outlet, while gas blown from the second air outlet to the second air outlet cannot reach the fan air inlet. This also ensures that when the second air outlet is used as the air inlet, gas can only flow into the fan air inlet from the second air outlet, while gas blown from the first air outlet to the first air outlet cannot reach the fan air inlet. This ensures the reliability of the ducted air conditioner and overcomes the problem in existing technologies where the air outlet direction of the ducted air conditioner can only be adjusted by changing the fan rotation direction. The ducted air conditioner can obtain reliable air volume in both cooling and heating modes, ensuring the heat exchange efficiency of the ducted air conditioner. Attached Figure Description

[0037] Figure 1 A schematic diagram of the side-discharge airflow principle of the ducted air conditioner provided in this embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the bottom air outlet principle of the ducted air conditioner provided in this embodiment of the utility model;

[0039] Figure 3 A schematic diagram of the ductwork unit in its first state provided in an embodiment of this utility model;

[0040] Figure 4 This is a schematic diagram of the structure of the duct air conditioner in its first state with the bottom wall removed, provided by an embodiment of the present invention.

[0041] Figure 5 A cross-sectional view of the duct unit in its first state as provided in this embodiment of the utility model;

[0042] Figure 6 Another cross-sectional view of the duct unit in the first state provided in this embodiment of the utility model;

[0043] Figure 7 This is a schematic diagram of the structure of the duct machine in the second state according to an embodiment of the present utility model;

[0044] Figure 8 This is a schematic diagram of the structure of the duct air conditioner in its second state, with the bottom wall of the casing removed, as provided in an embodiment of the present invention.

[0045] Figure 9A cross-sectional view of the duct unit in its second state as provided in an embodiment of this utility model;

[0046] Figure 10 Another cross-sectional view of the duct unit in the second state provided in this embodiment of the utility model;

[0047] Figure 11 This is a structural schematic diagram of the fixed volute and part of the shell provided in an embodiment of the present utility model;

[0048] Figure 12 This is a schematic diagram of the structure of the movable volute provided in an embodiment of the present utility model;

[0049] Figure 13 This is a schematic diagram of the structure of the baffle and cover plate provided in the embodiment of this utility model;

[0050] Figure 14 This is a schematic diagram of the structure of the fan assembly provided in an embodiment of the present utility model;

[0051] Figure 15 Another structural schematic diagram of the movable volute provided in this embodiment of the utility model;

[0052] Figure 16 This is a schematic diagram of the structure of the partition provided in an embodiment of the present utility model;

[0053] Figure 17 Another structural schematic diagram of the partition provided in this embodiment of the utility model;

[0054] Figure 18 A schematic diagram of the structure of the guide plate provided in an embodiment of this utility model;

[0055] Figure 19 Another structural schematic diagram of the guide plate provided in this embodiment of the utility model

[0056] Figure 20 A schematic diagram showing the included angle c of the positioning and mounting lines of the two fan components provided in this embodiment of the utility model;

[0057] Figure 21 A schematic diagram showing the rotation angles d1 and d2 of the movable volutes of the two fan components provided in this embodiment of the present invention;

[0058] Figure 22 The gas flow diagram provided for the first state of the duct air conditioner in this embodiment of the utility model;

[0059] Figure 23 Another gas flow diagram provided for the first state of the duct air conditioner in this embodiment of the present invention;

[0060] Figure 24Another gas flow diagram provided for the first state of the duct air conditioner in this embodiment of the present invention;

[0061] Figure 25 The gas flow diagram provided for the second state of the duct air conditioner in this embodiment of the utility model;

[0062] Figure 26 Another gas flow diagram for the ducted air conditioner in its second state, provided as an embodiment of this utility model;

[0063] Figure 27 Another gas flow diagram for the ducted air conditioner in its second state, provided as an embodiment of this utility model;

[0064] In the picture:

[0065] 1. Housing; 11. First air outlet; 12. Second air outlet; 2. Fixed volute; 21. Fan inlet; 22. First air outlet; 23. Second air outlet; 3. Movable volute; 4. Baffle; 24. Common air outlet; 5. Cover plate; 31. Shielding part; 7. Fan blade; 32. Guide part; 33. First air outlet channel; 34. Second air outlet channel; 8. Partition plate; 9. Guide plate; 221. First side air outlet; 231. Second side air outlet. Detailed Implementation

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] Existing technologies typically employ fan reversal to achieve reverse airflow, enabling the indoor unit to simultaneously deliver horizontal and vertical air. However, the airflow is relatively small when the fan reverses. If the ducted air conditioner is cooling when the fan is rotating forward, it needs to reverse to heat, resulting in poor heating capacity. Similarly, if the ducted air conditioner is heating when the fan is rotating forward, it needs to reverse to cool, also resulting in poor cooling capacity. Both solutions severely impact the heat exchange efficiency of the ducted air conditioner. Therefore, this application provides a method... Figures 1 to 27The ducted air conditioner shown includes: a housing 1, on which a first air outlet 11 and a second air outlet 12 are provided; at least two fan assemblies, all of which are arranged side by side within the housing 1, and a partition structure is provided between adjacent fan assemblies; each fan assembly includes: a fixed volute 2, which is disposed within the housing 1, and is provided with a fan inlet 21, at least one first air outlet 22, and at least one second air outlet 23, wherein the first air outlet 22 communicates with the first air outlet 11, and the second air outlet 23 communicates with the second air outlet 11. 2. Connecting; movable volute 3, the movable volute 3 is disposed inside the fixed volute 2, and the movable volute 3 has a first working state of closing the first air outlet 22 and opening the second air outlet 23, and the movable volute 3 also has a second working state of closing the second air outlet 23 and opening the first air outlet 22; baffle 4, the baffle 4 is disposed inside the housing 1, and the baffle 4 has a first shielding state of separating the fan inlet 21 and the first air outlet 11, and the baffle 4 also has a second shielding state of separating the fan inlet 21 and the second air outlet 12. The movable volute 3 is used to adjust the first air outlet 22 and the second air outlet 23 on the fixed volute 2, so that the fixed volute 2 can discharge air from the first air outlet 22, allowing the gas to be blown towards the first air outlet 11, thus enabling the ducted air unit to discharge air through the first air outlet 11. Alternatively, the fixed volute 2 can discharge air from the second air outlet 23, allowing the gas to be blown towards the second air outlet 12, thus enabling the ducted air unit to discharge air through the second air outlet 12. Simultaneously, the baffle 4 isolates the fan inlet 21 from either the first air outlet 11 or the second air outlet 12. This ensures that when the first air outlet 11 is used as the air inlet, the gas can only flow into the fan inlet 21 from the first air outlet 11, while the gas blown from the second air outlet 23 towards the second air outlet 12 cannot reach the fan inlet 21. This also ensures that the gas at the second air outlet 12... When used as an air inlet, gas can only flow into the fan inlet 21 through the second air outlet 12, while the gas blown from the first air outlet 22 towards the first air outlet 11 cannot reach the fan inlet 21, thus ensuring the reliability of the ducted air conditioner. This overcomes the problem in the prior art that the air outlet direction of the ducted air conditioner can only be adjusted by changing the fan rotation direction. The ducted air conditioner can obtain reliable air volume in both cooling and heating modes, ensuring the heat exchange efficiency of the ducted air conditioner. Moreover, since there are at least two fan components, there is a gap between two adjacent fan components to ensure the reliable movement of the movable volute 3 and the baffle 4. For this purpose, a partition structure is set between adjacent fan components to block the gap, thereby ensuring the isolation between the first air outlet 11 and the second air outlet 12. The partition structure can cooperate with the housing 1 to ensure the reliable air intake and exhaust of the fan components.

[0072] Specifically, the partition structure includes a partition plate 8, the edge of which is sealed to the adjacent fixed volute 2 and the corresponding inner wall of the housing 1. The partition plate 8 seals the gap, thereby ensuring reliable airflow into and out of the fan assembly. There is a gap between two adjacent fan assemblies; the first air outlet 22 includes a first side air outlet 221 with airflow direction towards the gap, and the second air outlet 23 includes a second side air outlet 231 with airflow direction towards the gap, as shown below. Figure 9 As shown, when the first side air outlet 221 discharges air, the edge of the partition 8 abuts and seals against the edge area of ​​the first side air outlet 221 away from the first air outlet 11. At this time, the airflow of the first side air outlet 221 can only flow towards the first air outlet 11, and the airflow cannot flow through the partition 8 to the second air outlet 12, thereby ensuring the operational reliability of the fan assembly. Similarly, as Figure 5 As shown, when the second side air outlet 231 is discharging air, the edge of the partition 8 is sealed to the edge area of ​​the second side air outlet 231 away from the second air outlet 12. At this time, the airflow of the second side air outlet 231 can only flow towards the second air outlet 12, and the airflow cannot flow through the partition 8 to the first air outlet 11, thereby ensuring the working reliability of the fan assembly.

[0073] The fixed volute 2 is provided with a common air outlet 24, which is connected to the spacing. When the movable volute 3 is in the first working state or the second working state, the movable volute 3 avoids the common air outlet 24. When the movable volute 3 is in the first working state, the common air outlet 24 forms a second air outlet 23. The partition 8 is located between the common air outlet 24 and the first air outlet 11. When the movable volute 3 is in the second working state, the common air outlet 24 forms a first air outlet 22. The partition 8 is located between the common air outlet 24 and the second air outlet 12. By setting the common air outlet 24, the number of openings in the fixed volute 2 is reduced, and the structural complexity of the fixed volute 2 is reduced. Moreover, by adjusting the position of the partition 8, the common air outlet 24 can be connected to the first air outlet 11 or the second air outlet 12, ensuring the reliable air output of the fan assembly and the operational reliability of the duct machine.

[0074] Since the fixed volute is provided with multiple first air outlets 22 and multiple second air outlets 23, when the first air outlet 22 of the fan assembly discharges air, the airflow from the first air outlet 22 of two adjacent fan assemblies will interfere with each other. When the second air outlet 23 of the fan assembly discharges air, the airflow from the second air outlet 23 of two adjacent fan assemblies will interfere with each other. For this reason, the partition structure also includes a guide plate 9. There is a gap between two adjacent fan assemblies. The first air outlet 22 includes a first side air outlet 221 with the airflow direction facing the gap. The second air outlet 23 includes a second side air outlet 231 with the airflow direction facing the gap. The guide plate 9 is disposed within the gap and is located between the first side air outlets 221 of the two fan assemblies or between the second side air outlets 231 of the two fan assemblies. By using the deflector plate 9 to block the first side air outlets 221 of two adjacent fan assemblies, the airflow from the first side air outlets 221 can only flow towards the first air outlet 11 along the guide of the deflector plate 9. There is no possibility of cross-flow between the airflows from the first side air outlets 221 of the two adjacent fan assemblies, thus avoiding airflow interference and improving the air outlet effect of the ducted air conditioner. Similarly, the deflector plate 9 can also block the second side air outlets 231 of two adjacent fan assemblies, ensuring that the airflow from the second side air outlets 231 can only flow towards the second air outlet 12 along the guide of the deflector plate 9. There is no possibility of cross-flow between the airflows from the second side air outlets 231 of the two adjacent fan assemblies, thus avoiding airflow interference and improving the air outlet effect of the ducted air conditioner.

[0075] like Figure 5 As shown, the second air outlet 12 of the ducted air conditioner is discharging air at this time. The air outlet 231 of the second side air outlet in the fan assembly on the right is directed towards the fan assembly on the left. To this end, while a guide plate 9 is set at the part of the two fan assemblies away from the second air outlet 12, another guide plate 9 is also set within the spacing to guide the air outlet 231 of the second side air outlet 231 of the fan assembly on the right to flow away from the fan assembly on the left. At this time, the airflow of the second side air outlet 231 of the fan assembly on the left can flow to the left half of the second air outlet 12, while the airflow of the second side air outlet 231 of the fan assembly on the right flows to the right half of the second air outlet 12, thereby ensuring the uniformity of the air outlet 12 and improving the air outlet effect of the ducted air conditioner.

[0076] like Figure 16As shown, the guide plate 9 is disposed on the partition 8, and the partition includes a horizontal sealing plate, a first vertical sealing plate located on the first side of the horizontal sealing plate, and a second vertical sealing plate located on the second side of the horizontal sealing plate. The horizontal sealing plate and the baffle 4 are on the same plane. The first vertical sealing plate can block the area between the baffle 4 and the housing 1, while the second vertical sealing plate can block the gap between two adjacent fan assemblies on the second side of the baffle 4. At the same time, the guide plate 9 is located within the gap to guide the airflow. When the ducted air conditioner needs to discharge air from the first air outlet 11, it can be selected... Figure 16 The partition structure shown is used inside the duct air conditioner to ensure reliable airflow from the first air outlet 11 of the duct air conditioner.

[0077] Or, such as Figures 17 to 19 As shown, the partition structure is divided into three parts, and includes Figure 17 The guide vane 9 shown and Figure 18 The first guide section shown and Figure 19 The second guide section shown, at this time Figure 17 The horizontal portion of the guide plate 9 shown is on the same plane as the baffle 4, while the vertical portion of the guide plate 9 blocks the area between the baffle 5 and the housing 1. The first guide portion blocks the first air outlet 11 and the second air outlet 12 within the spacing, and the second guide portion guides the airflow of the second side air outlet 231 to ensure the reliability of the fan assembly. When the ducted air conditioner needs to discharge air from the second air outlet 12, it can be selected... Figures 17 to 19 The partition structure formed by the combination of the structures shown is used inside the duct air conditioner to ensure reliable air output from the first air outlet 11 of the duct air conditioner.

[0078] In one embodiment, the fan inlet 21 is disposed on the end face of the fixed volute 2. There is a first gap between the end face of the fixed volute 2 and the inner wall of the housing 1. The baffle 4 moves within the first gap. By moving the baffle 4 within the first gap, the baffle 4 can move on both sides of the fan inlet 21. Since the fixed volute 2 is located inside the housing 1, the first air outlet 11 and the second air outlet 12 will be located on both sides of the fixed volute 2. The movement of the baffle 4 on both sides of the fan inlet 21 can achieve the isolation between the fan inlet 21 and the first air outlet 11, as well as the isolation between the fan inlet 21 and the second air outlet 12, ensuring the air intake reliability of the ducted air conditioner, and thus ensuring the working reliability of the ducted air conditioner. In either the first or second shielding state, the edge of the baffle 4 near the fixed volute 2 is sealed to the corresponding part of the fixed volute 2, while the edge of the baffle 4 away from the fixed volute 2 is sealed to the inner wall of the housing 1. This ensures the effective isolation of the baffle 4 between the fan inlet 21 and the first air outlet 11 or the second air outlet 12, guaranteeing the reliability of the ducted air conditioner. Preferably, a mating structure is provided inside the housing 1, located within the first gap, allowing the baffle 4 to abut against the mating structure, thereby improving the isolation effect of the baffle 4.

[0079] Optionally, the cross-section of the fan inlet 21 is circular, and the cross-section of the baffle 4 is arc-shaped, with the arc shape coaxial with the circular shape. By setting the baffle 4 to an arc shape, the baffle 4 can rotate around the axis of the circle, reducing the volume of the baffle 4 and the clearance area required during movement, thus reducing the volume and space occupied by the ducted air conditioner and improving the user experience. To ensure the sealing effect between the baffle 4 and the fixed volute 2, and to ensure reliable rotation of the baffle 4 on the fixed volute 2, a circular ring is provided at one end of the baffle 4 near the fixed volute 2. The circular ring contacts and engages with the edge of the fan inlet 21, further improving the isolation effect of the baffle 4.

[0080] The housing 1 has a first side plate, and the first air outlet 11 is disposed on the first side plate. The fan inlet 21 faces the first side plate, and the projection of the fan inlet 21 on the first side plate at least partially overlaps with the first air outlet 11. By aligning the first air outlet 11 with at least part of the fan inlet 21, the flow rate through the first air outlet 11 to the fan inlet 21 can be increased, thereby improving the working efficiency of the fan corresponding to the fixed volute 2. Preferably, the first air outlet 11 is located on the rear side of the first side plate, so that the fixed volute 2 can also be disposed at the rear of the housing 1. This allows for the placement of heat exchangers and other related structures at the front of the housing 1, further reducing the volume and space occupied by the ducted air conditioner and improving the user experience of the ducted air conditioner.

[0081] Since there is an overlap between the fan inlet 21 and the first air outlet 11, in order to ensure the isolation effect between the fan inlet 21 and the first air outlet 11, the fan assembly also includes a cover plate 5. The cover plate 5 is disposed at the end of the baffle 4 away from the fixed volute 2, and the shape of the cover plate 5 is the same as the projection of the fan inlet 21 on the first side plate and the overlapping shape of the first air outlet 11. When the baffle 4 is in the first shielding state, the cover plate 5 is located between the fan inlet 21 and the first air outlet 11. The cover plate 5 and the baffle 4 work together to isolate the fan inlet 21 and the first air outlet 11, ensuring the working reliability of the ducted air conditioner. When the baffle 4 is in the second shielding state, the cover plate 5 moves with the baffle 4 into the housing 1. At this time, the cover plate 5 can fit against the inner wall of the housing 1, further improving the isolation effect between the second air outlet 12 and the fan inlet 21, and further ensuring the working reliability of the ducted air conditioner.

[0082] The ducted air conditioner also includes a flow guiding structure disposed within the housing 1. This flow guiding structure divides the interior of the housing 1 into at least one first air duct and at least one second air duct. Each first air duct corresponds one-to-one with a first air outlet 22, and each first air outlet 22 is connected to a first air outlet 11 via a corresponding first air duct. Similarly, each second air outlet 23 corresponds one-to-one with a second air outlet 23, and each second air outlet 23 is connected to a second air outlet 12 via a corresponding second air duct. The first air duct guides the airflow from the first air outlet 22, allowing the gas to flow smoothly to the first air outlet 11, reducing flow resistance within the housing 1 and improving the airflow efficiency of the ducted air conditioner. Likewise, the second air duct guides the airflow from the second air outlet 23, allowing the gas to flow smoothly to the first air outlet 11, reducing flow resistance within the housing 1 and improving the airflow efficiency of the ducted air conditioner.

[0083] Preferably, the airflow guiding structure includes multiple airflow guiding plates. All airflow guiding plates are arranged inside the housing 1 to form a first airflow duct or a second airflow duct. Furthermore, the airflow guiding plates can also block the gap between the fixed volute 2 and the housing 1, ensuring that the airflow entering the housing 1 can only flow through the fan corresponding to the fixed volute 2, thus ensuring the reliability of the duct machine.

[0084] The movable volute 3 includes a shielding part 31. When the movable volute 3 is in the first working state, the shielding part 31 shields the first air outlet 22 and avoids the second air outlet 23; when the movable volute 3 is in the second working state, the shielding part 31 shields the second air outlet 23 and avoids the first air outlet 22. By using the shielding part 31 to shield all first air outlets 22 or all second air outlets 23 simultaneously, the reliability of adjusting the air outlet direction of the fan corresponding to the fixed volute 2 is ensured.

[0085] The fan assembly also includes a fan blade 7, which is rotatably disposed within the fixed volute 2. The shielding portion 31 has an arc-shaped cross-section, and its thickness gradually increases along the rotation direction of the fan blade 7. By increasing the thickness of the shielding portion 31, the rectification effect of the gas within the fixed volute 2 is improved, thereby enhancing the air outlet effect of the fan corresponding to the fixed volute 2 and ensuring the heat exchange efficiency of the duct air conditioner.

[0086] The minimum gap between the shielding part 31 and the fan blade 7 is a1, where 8mm < a1 < 15mm. When a1 ≤ 8mm, the gap between the shielding part 31 and the fan blade 7 is too small, and errors in the movement and shape of the shielding part 31, as well as the rotational error of the fan blade 7, will cause interference between the shielding part 31 and the fan blade 7, resulting in damage to the fan blade 7. When a1 ≥ 15mm, the gap between the shielding part 31 and the fan blade 7 is too large, resulting in poor airflow rectification within the fixed volute 2 and failing to improve the airflow effect. Only when 8mm < a1 < 15mm can the structural reliability between the shielding part 31 and the fan blade 7 be guaranteed, and the airflow rectification effect of the shielding part 31 also be guaranteed.

[0087] The movable volute 3 further includes a guide section 32, which is spaced apart from the shielding section 31. A first air outlet channel 33 is formed between the first end of the guide section 32 and the second end of the shielding section 31, and a second air outlet channel 34 is formed between the second end of the guide section 32 and the first end of the shielding section 31. When the movable volute 3 is in the first working state or in the second working state, the guide section 32 overlaps with the corresponding part of the fixed volute 2. The airflow within the fixed volute 2 is further rectified by the guide section 32, thereby improving the air outlet effect of the fixed volute 2. Simultaneously, the guide section 32 overlaps with the corresponding portion of the fixed volute 2, preventing the guide section 32 from obstructing the first air outlet 22 or the second air outlet 23, ensuring the reliability of the air outlet of the fixed volute 2. When the movable volute 3 switches to the first working state, the first air outlet channel 33 and the second air outlet channel 34 are respectively connected to the corresponding second air outlet 23. The guide section 32 is located on the fixed volute 2 between the two second air outlets 23. Part of the airflow is discharged from the second air outlet 23 at the first end of the guide section 32, while the remaining airflow flows through the guide section 32. After 2, the air is discharged from the second air outlet 23 at the second end. The airflow is further rectified by the guide section 32 to improve the air outlet effect of the duct machine. Similarly, when the movable volute 3 switches to the second working state, the first air outlet channel 33 and the second air outlet channel 34 are connected to the corresponding second air outlet 23. The guide section 32 is located on the fixed volute 2 between the two first air outlets 22. Part of the airflow is discharged from the first air outlet 22 at the first end of the guide section 32, and the remaining airflow flows through the guide section 32 and is discharged from the first air outlet 22 at the second end. The airflow is further rectified by the guide section 32 to improve the air outlet effect of the duct machine.

[0088] The fan assembly also includes a fan blade 7, which is rotatably mounted within the fixed volute 2. The cross-section of the guide section 32 is arc-shaped, and its thickness gradually increases along the rotation direction of the fan blade 7. This increased thickness of the guide section 32 improves the rectification of the gas within the fixed volute 2, enhances the airflow output of the fan corresponding to the fixed volute 2, and thus ensures the heat exchange efficiency of the ducted air conditioner.

[0089] The minimum gap between the guide section 32 and the fan blade 7 is a2, where 1.5a1 < a2 < 2a1, and a1 is the minimum gap between the shielding section 31 and the fan blade 7. When a2 is too small, the gap between the guide section 32 and the fan blade 7 is too small, and errors in the movement and shape of the guide section 32, as well as the rotation error of the fan blade 7, will cause interference between the guide section 32 and the fan blade 7, resulting in damage to the fan blade 7. When a2 is too large, the gap between the guide section 32 and the fan blade 7 is too large, resulting in poor airflow rectification within the fixed volute 2 and an inability to improve the airflow effect. Only when 1.5a1 < a2 < 2a1 can the structural reliability between the guide section 32 and the fan blade 7 be guaranteed, and the airflow rectification effect of the guide section 32 also be guaranteed.

[0090] The relationship between the central angle α corresponding to the first air outlet duct 33, the central angle β corresponding to the guide section 32, and the central angle γ corresponding to the second air outlet duct 34 is: α + β + γ ≤ 180°. At this time, the central angle corresponding to the opposite shielding section 31 is > 180°, thus enabling the shielding section 31 to simultaneously shield all first air outlets 22 or all second air outlets 23, ensuring the reliability of the duct unit. Here, α, β, and γ can be equal or unequal.

[0091] The line connecting the central axis of the fixed volute 2 and the midpoint of the guide section 32 constitutes the installation positioning line of the fixed volute 2. Vertical planes perpendicular to each other on the plane containing the second air outlet 12 constitute the positioning surface of the housing 1. The angle c between the positioning line of at least one of the fan components and the positioning surface is within the range of 15°≤c≤25°. When installing the fixed volute 2, the installation positioning line of the fixed volute 2 is first determined. Since the fan component has a portion close to the inner wall of the housing 1, the first or second air outlet of the fan component will face the inner wall of the housing 1 and cannot smoothly discharge air. Therefore, the installation positioning line of the fan component is adjusted to allow for a deflection installation of the fan component, that is, the corresponding installation positioning line of the fan component is deflected by an angle c. This prevents the first air outlet 22 or the second air outlet 23 facing the inner wall of the housing 1 from being perpendicular to the inner wall of the housing 1, thereby improving the smoothness of air discharge from the first air outlet 22 or the second air outlet 23 and ensuring the air discharge effect of the ducted air conditioner.

[0092] When adjusting the airflow of the fan assembly, the rotation angle d1 of the movable volute 3 ranges from 150° to 180°. The value of d1 is designed based on the positions of the first air outlet 22 and the second air outlet 23. When the angle of d1 is too small, the distance between the first air outlet 22 and the second air outlet 23 is too small, and the airflow direction of the first air outlet 22 and the airflow direction of the second air outlet 23 of the fan assembly are too different, which cannot meet the purpose of the ducted air conditioner to output air in different directions. When the angle of d1 is too large, since the fixed volute 2 is annular, the distance between the first air outlet 22 and the second air outlet 23 is still too small, and the airflow direction of the first air outlet 22 and the airflow direction of the second air outlet 23 of the fan assembly are too different, which also cannot meet the purpose of the ducted air conditioner to output air in different directions.

[0093] The rotation angle d2 of the movable volute 3 in the fan assembly equipped with the common air outlet 24 is in the range of 110° to 130°. Since the common air outlet 24 can be used as the first air outlet 22 or the second air outlet 23, the fan assembly equipped with the common air outlet 24 can reduce the rotation angle of the movable volute 3 and also ensure the reliable adjustment of the air outlet direction of the fan assembly.

[0094] The fan assembly comprises two components: a left fan assembly and a right fan assembly. At least one first air outlet 22 in the left fan assembly receives airflow through the left end of the first air outlet 11, and at least one first air outlet 22 in the right fan assembly receives airflow through the right end of the first air outlet 11. This ensures that all parts of the first air outlet 11 receive airflow, thereby guaranteeing uniform airflow and improving the airflow performance of the ducted air conditioner. Similarly, at least one second air outlet 23 in the left fan assembly receives airflow through the left end of the second air outlet 12, and at least one second air outlet 23 in the right fan assembly receives airflow through the right end of the second air outlet 12. This also ensures that all parts of the second air outlet 12 receive airflow, thereby guaranteeing uniform airflow and improving the airflow performance of the ducted air conditioner.

[0095] The first air vent 11 is located on the bottom wall of the housing 1, and the second air vent 12 is located on the side wall of the housing 1. When the first air vent 11 is used as a return air vent, the indoor unit achieves bottom return air and side air outlet, realizing horizontal blowing of cold air and avoiding the discomfort caused by direct blowing of cold air; when the second air vent 12 is used as a return air vent, it achieves side return air and bottom air outlet, realizing downward blowing of hot air and improving the heating effect.

[0096] Specifically, the ducted air conditioner has a first state in which the first air outlet 11 serves as a return air outlet and the second air outlet 12 serves as an air outlet, and a second state in which the first air outlet 11 serves as an air outlet and the second air outlet 12 serves as a return air outlet.

[0097] When the ducted air conditioner is in the first state, the movable volute 3 is in the first working state and the baffle 4 is in the second shielding state. At this time, the movable volute 3 closes the first air outlet 22 and opens the second air outlet 23. At the same time, the baffle 4 isolates the second air outlet 12 and the fan inlet 21. The airflow entering the housing 1 through the first air outlet 11 flows to the fan inlet 21 and then flows through the second air outlet 23 to the second air outlet 12. At this time, the ducted air conditioner returns air from below and exits air laterally, so as to achieve flat blowing of cold air and avoid the discomfort caused by direct blowing of cold air.

[0098] When the ducted air conditioner is in the second state, the movable volute 3 is in the second working state, and the baffle 4 is in the first shielding state. At this time, the movable volute 3 closes the second air outlet 23 and opens the first air outlet 22. At the same time, the baffle 4 isolates the first air outlet 11 and the fan inlet 21. The airflow entering the housing 1 through the second air outlet 12 flows to the fan inlet 21 and then flows through the first air outlet 22 to the first air outlet 11. At this time, the ducted air conditioner returns air to the side and exits air from the bottom, realizing hot air blowing downward and improving the heating effect.

[0099] 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.

[0100] The fixed volute 2 and the movable volute 3 together form a complete volute-shaped structure. By forming a complete volute-shaped structure with the fixed volute 2, the fan assembly can effectively drive the airflow, ensuring the working efficiency of the duct machine.

[0101] An air conditioner, including the aforementioned ducted unit.

[0102] 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. A ducted air conditioner, characterized in that: include: A housing (1), on which a first air vent (11) and a second air vent (12) are provided; At least two fan assemblies are arranged side by side in the housing (1), and a partition structure is provided between two adjacent fan assemblies; The wind turbine assembly includes: A fixed volute (2) is disposed inside the housing (1), and the fixed volute (2) is provided with a fan inlet (21), at least one first air outlet (22) and at least one second air outlet (23), the first air outlet (22) being connected to the first air outlet (11) and the second air outlet (23) being connected to the second air outlet (12); The movable volute (3) is disposed inside the fixed volute (2), and the movable volute (3) has a first working state of closing the first air outlet (22) and opening the second air outlet (23), and the movable volute (3) also has a second working state of closing the second air outlet (23) and opening the first air outlet (22). A baffle (4) is disposed inside the housing (1), and the baffle (4) has a first shielding state that separates the fan inlet (21) and the first air outlet (11), and the baffle (4) also has a second shielding state that separates the fan inlet (21) and the second air outlet (12).

2. The duct air conditioner according to claim 1, characterized in that: The partition structure includes a partition (8), the edge of which is sealed to the corresponding inner wall of the adjacent fixed volute (2) and the housing (1).

3. The duct air conditioner according to claim 2, characterized in that: There is a gap between two adjacent fan components. A common air outlet (24) is provided on the fixed volute (2). The common air outlet (24) is connected to the gap. When the movable volute (3) is in the first working state or the second working state, the movable volute (3) avoids the common air outlet (24). When the active volute (3) is in the first working state, the common air outlet (24) forms a second air outlet (23), and the partition (8) is located between the common air outlet (24) and the first air outlet (11); When the active volute (3) is in the second working state, the common air outlet (24) forms a first air outlet (22), and the partition (8) is located between the common air outlet (24) and the second air outlet (12).

4. The duct air conditioner according to claim 1, characterized in that: The partition structure also includes a guide plate (9), there is a gap between two adjacent fan components, the first air outlet (22) includes a first side air outlet (221) with the airflow direction facing the gap, the second air outlet (23) includes a second side air outlet (231) with the airflow direction facing the gap, the guide plate (9) is disposed within the gap, and the guide plate (9) is located between the first side air outlets (221) of the two fan components or between the second side air outlets (231) of the two fan components.

5. The duct air conditioner according to claim 1, characterized in that: The fan inlet (21) is located on the end face of the fixed volute (2), and there is a first gap between the end face of the fixed volute (2) and the inner wall of the housing (1), and the baffle (4) moves within the first gap.

6. The duct air conditioner according to claim 5, characterized in that: The housing (1) has a first side plate, the first air vent (11) is disposed on the first side plate, the fan inlet (21) faces the first side plate, and the projection of the fan inlet (21) on the first side plate at least partially overlaps with the first air vent (11).

7. The duct air conditioner according to claim 6, characterized in that: The fan assembly also includes a cover plate (5), which is disposed at the end of the baffle (4) away from the fixed volute (2). The shape of the cover plate (5) is the same as the projection of the fan inlet (21) on the first side plate and the overlapping shape of the first air outlet (11). When the baffle (4) is in the first shielding state, the cover plate (5) is located between the fan inlet (21) and the first air outlet (11).

8. The duct air conditioner according to claim 5, characterized in that: The cross-section of the fan inlet (21) is circular, and the cross-section of the baffle (4) is arc-shaped, with the arc-shaped baffle and the circular baffle arranged coaxially.

9. The duct air conditioner according to claim 1, characterized in that: The duct unit also includes a flow guiding structure, which is disposed inside the housing (1) and divides the interior of the housing (1) into at least one first air duct and at least one second air duct. The first air duct corresponds one-to-one with the first air outlet (22), and each first air outlet (22) is connected to the first air outlet (11) through the corresponding first air duct. The second air duct corresponds one-to-one with the second air outlet (23), and each second air outlet (23) is connected to the second air outlet (12) through the corresponding second air duct.

10. The duct air conditioner according to claim 1, characterized in that: The movable volute (3) includes a shielding part (31). When the movable volute (3) is in the first working state, the shielding part (31) shields the first air outlet (22) and avoids the second air outlet (23). When the movable volute (3) is in the second working state, the shielding part shields the second air outlet (23) and avoids the first air outlet (22).

11. The duct air conditioner according to claim 10, characterized in that: The fan assembly also includes a fan blade (7), which is rotatably disposed within the fixed volute (2). The shielding part (31) has an arc-shaped cross section, and the thickness of the shielding part (31) gradually increases along the rotation direction of the fan blade (7).

12. The duct air conditioner according to claim 11, characterized in that: The minimum gap between the shielding part (31) and the fan blade (7) is a1, where 8mm < a1 < 15mm.

13. The duct air conditioner according to claim 10, characterized in that: The movable volute (3) further includes a guide section (32), which is spaced apart from the shielding section (31). A first air outlet channel (33) is formed between the first end of the guide section (32) and the second end of the shielding section (31), and a second air outlet channel (34) is formed between the second end of the guide section (32) and the first end of the shielding section (31). When the movable volute (3) is in the first working state or in the second working state, the corresponding parts of the guide section (32) and the fixed volute (2) overlap each other.

14. The duct air conditioner according to claim 13, characterized in that: The fan assembly also includes a fan blade (7), which is rotatably disposed within the fixed volute (2). The cross-section of the guide section (32) is arc-shaped, and the thickness of the guide section (32) gradually increases along the rotation direction of the fan blade (7).

15. The duct air conditioner according to claim 14, characterized in that: The minimum gap between the guide section (32) and the fan blade (7) is a2, 1.5a1 < a2 < 2a1, where a1 is the minimum gap between the shielding section (31) and the fan blade (7).

16. The duct air conditioner according to claim 13, characterized in that: The relationship between the central angle α of the first air outlet channel (33), the central angle β of the guide section (32), and the central angle γ of the second air outlet channel (34) is: α+β+γ≤180°.

17. The duct air conditioner according to claim 13, characterized in that: The line connecting the central axis of the fixed volute (2) and the midpoint of the guide section (32) constitutes the installation positioning line of the fixed volute (2). The vertical planes perpendicular to each other on the plane where the second air outlet (12) is located constitute the positioning surface of the housing (1). The angle c between the installation positioning line of at least one of the fan components and the positioning surface is in the range of 15°≤c≤25°.

18. The duct air conditioner according to claim 3, characterized in that: The rotation angle d1 of the movable volute (3) ranges from 150° to 180°; and / or, the rotation angle d2 of the movable volute (3) in the fan assembly provided with the common air outlet (24) ranges from 110° to 130°.

19. The duct air conditioner according to claim 1, characterized in that: The number of fan assemblies is two, and the two fan assemblies include a left fan assembly and a right fan assembly. The airflow of at least one first air outlet (22) in the left fan assembly flows through the left end of the first air outlet (11), the airflow of at least one second air outlet (23) in the left fan assembly flows through the left end of the second air outlet (12), the airflow of at least one first air outlet (22) in the right fan assembly flows through the right end of the first air outlet (11), and the airflow of at least one second air outlet (23) in the right fan assembly flows through the right end of the second air outlet (12).

20. The duct air conditioner according to claim 1, characterized in that: The first air vent (11) is located on the bottom wall of the housing (1), and the second air vent (12) is located 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).

21. The duct air conditioner according to claim 1, characterized in that: The fixed volute (2) and the movable volute (3) together form a complete volute-shaped structure.

22. The duct air conditioner according to claim 1, characterized in that: The duct air conditioner has a first state in which the first air outlet (11) serves as a return air outlet and the second air outlet (12) serves as an air outlet, and a second state in which the first air outlet (11) serves as an air outlet and the second air outlet (12) serves as a return air outlet. When the duct machine is in the first state, the movable volute (3) is in the first working state, and the baffle (4) is in the second shielding state; When the duct machine is in the second state, the movable volute (3) is in the second working state, and the baffle (4) is in the first shielding state.

23. An air conditioner, characterized in that: The ductwork unit includes any one of claims 1 to 22.

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