Fan assembly, duct type air conditioner and air conditioner

Abstract

The utility model provides a fan assembly, a duct type air conditioner and an air conditioner. The fan assembly comprises a fixed volute; and a movable volute. According to the fan assembly, the duct type air conditioner and the air conditioner, the movable volute is matched with the fixed volute, and air supply of the fan assembly in different directions is achieved on the basis that the rotating direction of the fan blades in the fan assembly is not changed; the problem that in the prior art, the air volume is reduced due to the fact that the rotating direction of the fan blades needs to be changed to adjust the air supply direction is solved, the working reliability of the fan assembly is guaranteed, the duct type air conditioner can obtain reliable air volume in the refrigerating mode or the heating mode, the heat exchange efficiency of the duct type air conditioner is guaranteed, and the service life is prolonged. And meanwhile, in order to conveniently overhaul or produce the fan assembly, the fixed volute is divided into the first fixed part and the second fixed part in a split manner, so that the movable volute can be conveniently put into or taken out of the fixed volute, the circumference completeness of the fixed volute is ensured, and the working efficiency and the overhaul efficiency of the fan assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to a fan assembly, a duct air conditioner, and an air conditioner. 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 the existing fan structure cannot guarantee the heat exchange efficiency of ducted air conditioners, a fan assembly, ducted air conditioner, and air conditioner are provided that utilize a movable volute to adjust the air supply direction without adjusting the fan rotation direction to ensure heat exchange efficiency.

[0005] A wind turbine assembly, comprising:

[0006] A fixed volute is provided with a first air outlet and a second air outlet.

[0007] The movable volute is rotatably disposed within the fixed volute, and the movable volute has a first state of closing the first air outlet and opening the second air outlet, and the movable volute also has a second state of opening the first air outlet and closing the second air outlet.

[0008] The fixed volute includes a first fixing part and a second fixing part, which are detachably connected along the axial direction of the fixed volute to allow the movable volute to be placed into or removed from the fixed volute.

[0009] The movable volute includes a first movable part and a second movable part, which are detachably connected along the axial direction of the fixed volute.

[0010] The fan assembly includes an air collection structure. The end face of the fixed volute is provided with an air inlet. The air collection structure is located at the air inlet and is detachably connected to the movable volute through the air inlet.

[0011] The maximum diameter of the air collecting structure is greater than the diameter of the air inlet, and there is a first clearance distance between the air collecting structure and the end face of the fixed volute.

[0012] The maximum diameter of the movable volute is greater than the diameter of the air inlet, and there is a second clearance distance between the end of the movable volute and the end face of the fixed volute.

[0013] The fan assembly also includes a connector, the air collection structure is connected to the movable volute through the connector, and there is a third clearance distance between the connector and the edge of the air inlet. The first clearance distance, the third clearance distance and the second clearance distance together form a U-shaped clearance channel, and the edge of the air inlet is located within the clearance channel.

[0014] The fan assembly also includes a sealing structure, which is disposed within the first clearance distance and / or the second clearance distance.

[0015] The fan assembly also includes a drive structure, which is connected to the movable volute and is capable of driving the movable volute to rotate.

[0016] The movable volute is provided with a rack, and the fixed volute is provided with an exposure hole. At least a portion of the rack is located at the exposure hole, and the drive structure meshes with the rack located at the exposure hole.

[0017] A ducted air handling unit includes the aforementioned fan assembly.

[0018] An air conditioner comprising the aforementioned fan assembly or the aforementioned duct unit.

[0019] The fan assembly, duct air conditioner, and air conditioner provided by this utility model utilize the cooperation of a movable volute and a fixed volute to achieve air delivery in different directions without changing the rotation direction of the fan blades inside the fan assembly. This overcomes the problem in the prior art where the air delivery direction needs to be adjusted by changing the rotation direction of the fan blades, resulting in a reduction in air volume. This ensures the operational reliability of the fan assembly. The duct air conditioner can also obtain a reliable air volume in both cooling and heating modes, ensuring the heat exchange efficiency of the duct air conditioner. At the same time, to facilitate the maintenance or production of the fan assembly, the fixed volute is divided into a first fixing part and a second fixing part, which facilitates the insertion or removal of the movable volute from the fixed volute while ensuring the circumference integrity of the fixed volute, thereby improving the working efficiency and maintenance efficiency of the fan assembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the fan assembly provided in an embodiment of the present utility model;

[0021] Figure 2 An exploded view of the fan assembly provided in an embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the clearance channel for the fan assembly provided in an embodiment of this utility model;

[0023] Figure 4 A schematic diagram of the side-discharge airflow principle of the ducted air conditioner provided in this embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the bottom air outlet principle of the ducted air conditioner provided in this embodiment of the utility model;

[0025] In the picture:

[0026] 1. Fixed volute; 11. First air outlet; 12. Second air outlet; 2. Movable volute; 13. First fixed part; 14. Second fixed part; 21. First movable part; 22. Second movable part; 3. Air collection structure; 4. Clearance passage; 5. Drive structure; 10. Duct air conditioner. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Therefore, this application provides a method such as Figures 1 to 5The fan assembly shown includes: a fixed volute 1, on which a first air outlet 11 and a second air outlet 12 are provided; a movable volute 2, which is rotatably disposed within the fixed volute 1, and the movable volute 2 has a first state of closing the first air outlet 11 and opening the second air outlet 12, and a second state of opening the first air outlet 11 and closing the second air outlet 12; the fixed volute 1 includes a first fixing part 13 and a second fixing part 14, which are detachably connected along the axial direction of the fixed volute 1 so that the movable volute 2 can be inserted into or removed from the fixed volute 1. By utilizing the cooperation between the movable volute 2 and the fixed volute 1, the fan assembly can deliver air in different directions without changing the rotation direction of the fan blades inside the fan assembly. This overcomes the problem in existing technologies where the airflow is reduced due to the need to change the rotation direction of the fan blades to adjust the airflow direction, ensuring the reliability of the fan assembly. The ducted air conditioner can also obtain a reliable airflow in both cooling and heating modes, ensuring the heat exchange efficiency of the ducted air conditioner. At the same time, to facilitate the maintenance or production of the fan assembly, the fixed volute 1 is divided into a first fixing part 13 and a second fixing part 14, which facilitates the insertion and removal of the movable volute 2 from the fixed volute 1. This also avoids the problem of deviation in the connection position of the fixed volute 1 due to errors caused by splicing the fixed volute 1 in the circumferential direction, ensuring the circumferential integrity of the fixed volute 2 and improving the working efficiency and maintenance efficiency of the fan assembly.

[0034] Since this application requires the installation of a movable volute 2 to adjust the airflow direction of the fan assembly, the addition of the movable volute 2 increases the difficulty of production, assembly, and maintenance compared to the prior art. Therefore, this application sets the fixed volute 1 as a first fixing part 13 and a second fixing part 14 that can be separated or assembled axially. When the fan assembly is produced, assembled, or maintained, the first fixing part 13 and the second fixing part 14 can be disassembled, and then the movable volute 2 can be inserted or removed, thus reducing the difficulty of assembling the fan assembly due to the installation of the movable volute 2.

[0035] Since the fan assembly needs to be equipped with fan blades to drive the gas entering the area enclosed by the fixed volute 1 and the movable volute 2, the fan blades need to be at least partially placed inside the movable volute 2. To facilitate the installation of the fan blades, the movable volute 2 includes a first movable part 21 and a second movable part 22. The first movable part 21 and the second movable part 22 can be detachably connected along the axial direction of the fixed volute 1. When installing the fan blades, the first movable part 21 and the second movable part 22 can be disassembled so that the fan blades can be installed inside the movable volute 2, thereby realizing the installation of the fan blades. Then, the first fixed part 13 and the second fixed part 14 are assembled to complete the assembly of the fan assembly.

[0036] Furthermore, the fan assembly includes an air collection structure 3. An air inlet is provided on the end face of the fixed volute 1, and the air collection structure 3 is located at the air inlet. The air collection structure 3 is detachably connected to the movable volute 2 through the air inlet. The air collection structure 3 rectifies and guides the gas about to enter the fixed volute 1, ensuring reliable air intake for the fan assembly. At this time, the air collection structure 3 is located outside the fixed volute 1. By detachably connecting the air collection structure 3 to the movable volute 2, the positioning of the air collection structure 3, the fixed volute 1, and the movable volute 2 is simultaneously achieved, ensuring the structural reliability of the fan assembly.

[0037] To avoid interference between the air collecting structure 3 and the fixed volute 1, a first clearance distance is provided between the end faces of the air collecting structure 3 and the fixed volute 1. Due to the existence of the first clearance distance, there is a risk of air leakage in the fan assembly. The maximum diameter of the air collecting structure 3 is larger than the diameter of the air inlet. The portion of the air collecting structure 3 that is larger than the air inlet forms a narrow channel at the first clearance distance, thereby increasing the flow resistance at the first clearance distance and improving the sealing effect at the first clearance distance.

[0038] To avoid interference between the movable volute 2 and the fixed volute 1, a second clearance distance is provided between the end of the movable volute 2 and the end face of the fixed volute 1. Due to the presence of this second clearance distance, there is a risk of air leakage in the fan assembly. The maximum diameter of the movable volute 2 is larger than the diameter of the air inlet. This larger diameter of the movable volute 2 creates a narrow channel at the second clearance distance, thereby increasing the flow resistance at this distance and improving the sealing effect.

[0039] The fan assembly also includes a connector, the air collection structure 3 is connected to the movable volute 2 through the connector, and there is a third clearance distance between the connector and the edge of the air inlet. The first clearance distance, the third clearance distance and the second clearance distance together form a U-shaped clearance channel 4, and the edge of the air inlet is located within the clearance channel 4. A connector is used to pass through the air inlet to connect the air collecting structure 3 and the movable volute 2. At the same time, a third clearance distance is set to avoid interference between the connector and the edge of the air inlet, ensuring the reliable movement of the connector, air collecting structure 3, and movable volute 2. Due to the existence of the third clearance distance, there is a risk of air leakage in the fan assembly. Therefore, the maximum diameter of the air collecting structure 3 is larger than the diameter of the air inlet. The portion of the air collecting structure 3 that is larger than the air inlet forms a narrow channel at the first clearance distance. At the same time, the maximum diameter of the movable volute 2 is larger than the diameter of the air inlet. The portion of the movable volute 2 that is larger than the air inlet forms a narrow channel at the second clearance distance, thus forming a U-shaped clearance channel 4. This clearance channel 4 can achieve a labyrinth seal effect, improving the sealing effect and working efficiency of the fan assembly.

[0040] Furthermore, the fan assembly also includes a sealing structure disposed within the first clearance distance and / or the second clearance distance, thereby further improving the sealing effect of the fan assembly. Preferably, the sealing structure includes protrusions and / or grooves formed on the surface of the air collecting structure 3, protrusions and / or grooves formed on the end face of the fixed volute 1, and protrusions and / or grooves formed on the end face of the movable volute 2, further enhancing the labyrinth sealing effect.

[0041] The fan assembly also includes a drive structure 5, which is connected to the movable volute 2 and can drive the movable volute 2 to rotate. By using the drive structure 5 to drive the movable volute 2, the automatic switching of the airflow direction of the fan assembly is achieved.

[0042] In one embodiment, the movable volute 2 is provided with a rack. Since the movable volute 2 is located inside the fixed volute 1, the fixed volute 1 is provided with an exposure hole. At least part of the rack is located at the exposure hole, and the drive structure 5 meshes with the rack located at the exposure hole to ensure reliable drive of the movable volute 2 by the drive structure 5.

[0043] Preferably, the drive structure 5 includes a drive gear that can mesh with a rack to drive the movable volute 2.

[0044] Optionally, the fan assembly also includes a drive shaft, with the drive gear meshing with the drive shaft, and the drive shaft can simultaneously mesh with the first movable part 21 and the second movable part 22, thereby improving the driving reliability of the drive structure 5 on the movable volute 2.

[0045] A ducted air handling unit includes the aforementioned fan assembly.

[0046] The ducted air conditioner has a cooling mode and a heating mode. The first air outlet 11 faces the side wall of the ducted air conditioner, and the second air outlet 12 faces the bottom wall of the ducted air conditioner. When the ducted air conditioner is in the cooling mode, the movable volute 2 opens the first air outlet 11 and closes the second air outlet 12. The cold air generated by the ducted air conditioner during cooling will be blown out horizontally through the first air outlet 11 and then flow downward under the action of gravity, achieving a shower-like cooling effect. When the ducted air conditioner is in the heating mode, the movable volute 2 opens the second air outlet 12 and closes the first air outlet 11. The hot air can be blown downward through the second air outlet 12, quickly reaching the ground and spreading out on the ground, achieving a carpet-like heating effect, effectively improving the user experience of the ducted air conditioner.

[0047] An air conditioner comprising the aforementioned fan assembly or the aforementioned duct unit.

[0048] 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 fan assembly, characterized in that: include: A fixed volute (1) is provided with a first air outlet (11) and a second air outlet (12); The movable volute (2) is rotatably disposed inside the fixed volute (1), and the movable volute (2) has a first state of closing the first air outlet (11) and opening the second air outlet (12), and the movable volute (2) also has a second state of opening the first air outlet (11) and closing the second air outlet (12). The fixed volute (1) includes a first fixing part (13) and a second fixing part (14). The first fixing part (13) and the second fixing part (14) are detachably connected along the axial direction of the fixed volute (1) so that the movable volute (2) can be put into or taken out of the fixed volute (1).

2. The wind turbine assembly according to claim 1, characterized in that: The movable volute (2) includes a first movable part (21) and a second movable part (22), which are detachably connected along the axial direction of the fixed volute (1).

3. The wind turbine assembly according to claim 1, characterized in that: The fan assembly includes an air collection structure (3), and the end face of the fixed volute (1) is provided with an air inlet. The air collection structure (3) is located at the air inlet, and the air collection structure (3) is detachably connected to the movable volute (2) through the air inlet.

4. The wind turbine assembly according to claim 3, characterized in that: The maximum diameter of the air collecting structure (3) is greater than the diameter of the air inlet, and there is a first clearance distance between the end face of the air collecting structure (3) and the fixed volute (1).

5. The wind turbine assembly according to claim 4, characterized in that: The maximum diameter of the movable volute (2) is greater than the diameter of the air inlet, and there is a second clearance distance between the end of the movable volute (2) and the end face of the fixed volute (1).

6. The wind turbine assembly according to claim 5, characterized in that: The fan assembly also includes a connector. The air collection structure (3) is connected to the movable volute (2) through the connector. There is a third clearance distance between the connector and the edge of the air inlet. The first clearance distance, the third clearance distance and the second clearance distance together form a U-shaped clearance channel (4). The edge of the air inlet is located in the clearance channel (4).

7. The wind turbine assembly according to claim 5, characterized in that: The fan assembly also includes a sealing structure, which is disposed within the first clearance distance and / or the second clearance distance.

8. The wind turbine assembly according to claim 1, characterized in that: The fan assembly also includes a drive structure (5), which is connected to the movable volute (2) and can drive the movable volute (2) to rotate.

9. The wind turbine assembly according to claim 8, characterized in that: The movable volute (2) is provided with a rack, and the fixed volute (1) is provided with an exposure hole. At least part of the rack is located at the exposure hole, and the drive structure (5) meshes with the rack located at the exposure hole.

10. A ducted air conditioner, characterized in that: Includes the wind turbine assembly as described in any one of claims 1 to 9.

11. An air conditioner, characterized in that: Includes the fan assembly according to any one of claims 1 to 9 or the duct machine according to claim 10.

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