volute assembly, centrifugal fan and air conditioner

Abstract

This utility model relates to a volute assembly, a centrifugal fan, and an air conditioner. The volute assembly includes a volute and a baffle mechanism. The volute has an exhaust port. The baffle mechanism includes a driver and a baffle. The baffle is arranged near the outer edge of the exhaust port. The driver is connected to the baffle and can drive the baffle to rotate, thereby adjusting the air outlet area and / or air outlet angle of the exhaust port. The volute assembly of this utility model can adjust the air outlet area and / or air outlet angle to meet different operating conditions of the air conditioner, which helps to reduce the probability of aerodynamic noise in the air conditioner and ensure the operating efficiency of the air conditioner.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, specifically to a volute assembly, a centrifugal fan, and an air conditioner. Background Technology

[0002] Ductless air conditioning indoor units (referred to as ducted units) are a type of air conditioning indoor unit. They occupy a portion of the household air conditioning market due to their concealed installation and ease of aesthetic integration into home décor. In related technologies, the exhaust vents of the fans in these indoor units are often at a fixed angle, resulting in an unadjustable airflow field within the unit. This can easily lead to aerodynamic noise or low operating efficiency when the indoor unit operates in different modes. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a volute assembly that can adjust the air outlet area of ​​the exhaust port to meet different operating conditions of the air conditioner, thereby reducing the probability of aerodynamic noise from the air conditioner and ensuring its operating efficiency.

[0005] An embodiment of this utility model also proposes a centrifugal fan.

[0006] An embodiment of this utility model also proposes an air conditioner.

[0007] The volute assembly of this utility model includes: a volute having an exhaust port; and a baffle mechanism including a driver and a baffle, the baffle being arranged near the outer edge of the exhaust port, the driver being connected to the baffle, and the driver being able to drive the baffle to rotate to adjust the exhaust area and / or exhaust angle of the exhaust port.

[0008] According to the volute assembly of the present invention, since the baffle is arranged near the outer edge of the exhaust port, the driver can drive the baffle to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port. Thus, the air conditioner can adjust the air outlet area and / or air outlet angle of the exhaust port according to different operating conditions, which helps to reduce the probability of aerodynamic noise in the air conditioner and ensure the operating efficiency of the air conditioner.

[0009] In some embodiments, the baffle includes a first baffle, which is rotatably mounted on the upper edge of the exhaust port, and the rotation axis of the first baffle is parallel to the left-right direction of the volute. The volute assembly of this embodiment uses the above-described structure for the first baffle, which allows adjustment of the downward angle of the volute's exhaust port, resulting in more abundant airflow in the high-speed zone of the volute's exhaust port, thus improving the operating efficiency of the centrifugal fan.

[0010] In some embodiments, the volute has a first end plate and a second end plate, which are respectively arranged on the left and right sides of the exhaust port. A sealing element is provided at the contact point between the first baffle and at least one of the first and second end plates. This prevents air leakage at the contact point between the first baffle and at least one of the first and second end plates, thus reducing air loss and improving the airflow efficiency of the air conditioner.

[0011] In some embodiments, at least one of the first end plate and the second end plate is provided with a stop member, which abuts against the first end plate when the first end plate rotates to its limit position. This limits the rotational limit position of the first end plate to prevent interference between the first end plate and other components inside the air conditioner due to excessive rotation.

[0012] In some embodiments, the stop includes a first stop and a second stop, the first stop being located above the first baffle and the second stop being located below the first baffle, the first baffle being rotatable between the first stop and the second stop. This limits the upper and lower limit positions of the first baffle, preventing interference with other components inside the air conditioner due to excessive rotation.

[0013] In some embodiments, the volute includes a diffuser section, and the exhaust port is located at the outlet end of the diffuser section. Along the flow direction of the airflow within the diffuser section, the length of the diffuser section is L0, and the length of the first baffle is L1. When at least a portion of the first baffle is located upstream of the exhaust port along the airflow direction, L0 ≤ L1 ≤ 3L0. This allows for optimization of the dimensional parameters of the first baffle, further improving the problem of uneven airflow or large-scale vortices at the air conditioner's outlet, and reducing the noise generated during air conditioner operation.

[0014] When the first baffle is located downstream of the exhaust port along the airflow direction, 0.6L0≤L1≤L0. This allows for optimization of the first baffle's dimensional parameters, further improving the problem of uneven airflow or large-scale vortices at the air conditioner's outlet, and reducing noise generated during air conditioner operation.

[0015] In some embodiments, the angle rotation range of the baffle is θ, where 0 < θ ≤ 15°. This allows the volute assembly to meet the requirements of air outlet area and air outlet angle under different operating conditions, resulting in better performance.

[0016] In some embodiments, the baffle includes a second baffle, which is arranged near the lower edge of the exhaust vent, and the rotation axis of the second baffle is parallel to the left-right direction of the volute. Thus, the first and second baffles can cooperate to adjust the exhaust area and angle of the exhaust vent to meet different operating conditions of the air conditioner.

[0017] In some embodiments, the baffle includes a third baffle arranged near the side edge of the exhaust port, and the rotation axis of the third baffle is parallel to the vertical direction of the volute. This further expands the airflow adjustment range of the volute assembly, resulting in a wider range of adjustment for the exhaust port's outlet angle and area.

[0018] Another embodiment of the centrifugal fan of the present invention includes: a volute assembly, wherein the volute assembly is the volute assembly described in any one of the embodiments of the present invention; and a fan wheel disposed inside the volute.

[0019] According to the centrifugal fan of the present invention, since the baffle is arranged near the outer edge of the exhaust port, the driver can drive the baffle to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port. Thus, the air conditioner can adjust the air outlet area and / or air outlet angle of the exhaust port according to different operating conditions, which helps to reduce the probability of aerodynamic noise in the air conditioner and ensure the operating efficiency of the air conditioner.

[0020] An air conditioner according to another embodiment of the present invention includes: a housing; an air outlet frame, wherein a first air outlet is provided on the front side of the air outlet frame; a centrifugal fan, wherein the centrifugal fan is the centrifugal fan described in the embodiment of the present invention, the centrifugal fan is disposed inside the housing, and the exhaust port can deliver air toward the first air outlet; a heat exchanger, wherein the heat exchanger is disposed inside the housing and located on the rear side of the air outlet frame; and a water receiving tray, wherein the water receiving tray is disposed on the lower side of the heat exchanger.

[0021] According to the embodiments of the present invention, since the baffle is arranged near the outer edge of the exhaust port, the driver can drive the baffle to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port. Thus, the air conditioner can adjust the air outlet area and / or air outlet angle of the exhaust port according to different operating conditions, which helps to reduce the probability of aerodynamic noise from the air conditioner and ensure the operating efficiency of the air conditioner.

[0022] In some embodiments, the air outlet frame is disposed on the outer casing, and a second air outlet is provided on the lower side of the air outlet frame. The exhaust port can deliver air towards the first air outlet and the second air outlet, thereby improving the air output effect of the air conditioner.

[0023] In some embodiments, the air outlet frame is a one-piece injection molded part. This facilitates the processing and manufacturing of the air outlet frame and allows for high production precision.

[0024] In some embodiments, the air outlet frame is detachably mounted on the housing. Because the air outlet frame is detachably mounted on the housing, it facilitates the later disassembly, assembly, and maintenance of the air conditioner.

[0025] In some embodiments, the housing has a front outlet and a lower outlet, at least a portion of the air outlet frame is fitted at the front outlet and the lower outlet, and at least one of the front outlet and the lower outlet is formed on a sheet metal part. This effectively improves the structural strength at the connection between the air outlet frame and the housing, and facilitates the matching of the air outlet frame and the housing.

[0026] In some embodiments, the air conditioner is a ducted air conditioner to improve the air output effect of the ducted air conditioner.

[0027] In some embodiments, the air conditioner further includes an air outlet panel assembly, which is fitted onto the outside of the first air outlet and / or the second air outlet. This can improve the air outlet effect of the air conditioner and expand its air delivery range.

[0028] In some embodiments, the air outlet panel assembly responds to instructions from an application, control panel, or remote control device, which has a display interface including at least one of front air outlet, bottom air outlet, and dual air outlet. This improves the airflow efficiency of the air conditioner and expands its air delivery range.

[0029] In some embodiments, the air outlet panel assembly has a panel air outlet and includes an air guide and / or an air sweeping member. The air guide and / or air sweeping member is disposed at the panel air outlet. The air sweeping member enables air to be swept left and right in the panel air outlet. The air guide can open and close the panel air outlet and adjust the air outlet angle. Therefore, the air outlet panel assembly can improve the uniformity and comfort of the air conditioning airflow through three-dimensional airflow adjustment. Attached Figure Description

[0030] Figure 1 This is a perspective view of a volute assembly according to an embodiment of the present invention.

[0031] Figure 2 This is a perspective view of the volute assembly according to another embodiment of the present invention. Figure 3This is a perspective view of the volute assembly according to another embodiment of the present invention.

[0032] Figure 4 This is a cross-sectional view of a centrifugal fan according to an embodiment of the present invention.

[0033] Figure 5 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

[0034] Figure 6 This is a front view of an air conditioner according to an embodiment of the present invention.

[0035] Figure 7 This is a schematic diagram of the display interface of the air conditioner according to an embodiment of the present utility model.

[0036] Figure label: 1. Volute; 11. Exhaust vent; 12. First end plate; 13. Second end plate; 14. Stop; 141. First stop; 142. Second stop; 15. Diffuser section; 16. Volute tongue; 2. Baffle mechanism; 21. Baffle; 211. First baffle; 212. Second baffle; 213. Third baffle; 214. Fourth baffle; 22. Driver; 3. Wind turbine; 4. Outer shell; 41. Exit section; 4101. Front exit section; 4102. Lower exit section; 411. Left side panel; 412. Right side panel; 413. Top cover; 414. Bottom panel; 5. Air outlet frame; 51. First air outlet; 52. Second air outlet; 61. Heat exchanger; 62. Water receiving tray. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] The following is a reference appendix. Figures 1 to 7 This invention describes a volute assembly, a centrifugal fan, and an air conditioner according to embodiments of the present invention.

[0039] like Figures 1 to 4 As shown, the volute assembly of this utility model embodiment includes: a volute 1 and a baffle mechanism 2. The volute 1 has an exhaust port 11. The baffle mechanism 2 includes a driver 22 and a baffle 21. The baffle 21 is arranged near the outer edge of the exhaust port 11. The driver is connected to the baffle 21. The driver can drive the baffle 21 to rotate to adjust the exhaust area and / or exhaust angle of the exhaust port 11.

[0040] According to the volute assembly of the present invention, since the baffle 21 is arranged close to the outer edge of the exhaust port 11, the driver 22 can drive the baffle 21 to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port 11. Thus, the air conditioner can adjust the air outlet area and / or air outlet angle of the exhaust port 11 according to different operating conditions, which helps to reduce the probability of aerodynamic noise in the air conditioner and ensure the operating efficiency of the air conditioner.

[0041] Understandably, since the baffle 21 can rotate to adjust the air outlet area and air outlet angle of the exhaust port 11, the flow field inside the air conditioner can be changed. When the airflow at the air outlet of the air conditioner is uneven or large-scale vortices are generated, the problem of uneven airflow at the air outlet of the air conditioner or the generation of large-scale vortices can be solved by adjusting the rotation angle of the baffle 21. In addition, the noise generated when the air conditioner is working can be reduced and the air volume can be effectively increased.

[0042] For example, the driver 22 is a motor.

[0043] Optionally, such as Figure 1 and Figure 2 As shown, the baffle 21 includes a first baffle 211, which is rotatably mounted on the upper edge of the exhaust port 11. The rotation axis of the first baffle 211 is parallel to the left-right direction of the volute 1. In this embodiment of the present invention, the volute assembly uses the above-described structure to arrange the first baffle 211, which can adjust the downward angle of the exhaust port 11 of the volute 1, so that the airflow in the high-speed zone of the exhaust port 11 of the volute 1 is more abundant, which is beneficial to improving the operating efficiency of the centrifugal fan.

[0044] Optionally, such as Figure 1 As shown, the volute 1 has a first end plate 12 and a second end plate 13, which are respectively arranged on the left and right sides of the exhaust port 11. The contact position between the first baffle 211 and at least one of the first end plate 12 and the second end plate 13 has a sealing element. This can prevent air leakage at the contact position between the first baffle 211 and at least one of the first end plate 12 and the second end plate 13, which helps to reduce air loss and improve the air output efficiency of the air conditioner.

[0045] For example, the seal can be a sealing structure such as a rubber gasket or foam.

[0046] Optionally, such as Figure 1 As shown, at least one of the first end plate 12 and the second end plate 13 is provided with a stop member 14. When the first baffle 211 rotates to its limit position, the first baffle 211 abuts against the stop member 14. This limits the rotation limit position of the first baffle 211 to prevent the first baffle 211 from interfering with other components inside the air conditioner due to excessive rotation.

[0047] like Figure 1 As shown, the stop member 14 includes a first stop member 141 and a second stop member 142. The first stop member 141 is located above the first baffle 211, and the second stop member 142 is located below the first baffle 211. The first baffle 211 can rotate between the first stop member 141 and the second stop member 142. This limits the upper and lower limit positions of the first baffle 211 to prevent interference with other components inside the air conditioner due to excessive rotation.

[0048] For example, such as Figure 1 As shown, the first stop can be a baffle structure. Both the upper edges of the first end plate 12 and the second end plate 13 are provided with stop members 14. When the first baffle 211 rotates upward to its limit position, the first baffle 211 abuts against the stop member 14. Furthermore, the abutting action of the first baffle 211 and the stop member 14 further prevents airflow leakage from the gap between the first baffle 211 and the first end plate 12 (second end plate 13), which helps reduce wind loss and improve the airflow efficiency of the air conditioner.

[0049] like Figure 1 As shown, the second stop 142 can be a protruding post, which is provided on the first end plate 12 and the second end plate 13 to constrain the lower limit position of the first baffle 211.

[0050] Optionally, the volute 1 includes a diffuser section 15, and an exhaust port 11 is located at the outlet end of the diffuser section 15. Along the flow direction of the airflow within the diffuser section 15, the length of the diffuser section 15 is LO, and the length of the first baffle 211 is L1. It can be understood that the length L0 of the diffuser section 15 is the distance between the volute tongue 16 and the outlet end of the diffuser section 15.

[0051] like Figure 1 As shown, when at least a portion of the first baffle 211 is located upstream of the exhaust vent 11 along the airflow direction, L0 ≤ L1 ≤ 3L0. That is, when at least a portion of the first baffle 211 is located in the rear region of the exhaust vent 11, the length L1 of the first baffle 211 ranges from L0 to 3L0. This allows for optimization of the dimensional parameters of the first baffle 211, further improving the problem of uneven airflow or large-scale vortices at the air conditioner's outlet, and reducing the noise generated during air conditioner operation.

[0052] like Figures 2 to 4As shown, when the first baffle 211 is located downstream of the exhaust vent 11 along the airflow direction, 0.6L0≤L1≤L0. That is, when the first baffle 211 is located in the area in front of the exhaust vent 11, the length L1 of the first baffle 211 ranges from 0.6L0 to L0. This allows for optimization of the dimensional parameters of the first baffle 211, further improving the problem of uneven airflow or large-scale vortices at the air conditioner's outlet, and reducing the noise generated during air conditioner operation.

[0053] Optionally, the angle rotation range of the baffle 21 is θ, where 0 < θ ≤ 15°, which allows the volute 1 assembly to meet the requirements of air outlet area and air outlet angle under different working conditions, resulting in better performance.

[0054] In other embodiments, such as Figure 3 As shown, the baffle 21 includes a second baffle 212, which is arranged near the lower edge of the exhaust port 11. The rotation axis of the second baffle 212 is parallel to the left-right direction of the volute 1. Thus, the first baffle 211 and the second baffle 212 can work together to adjust the air outlet area and air outlet angle of the exhaust port 11 to meet different operating conditions of the air conditioner.

[0055] Optionally, such as Figure 4 As shown, the volute 1 has a volute tongue 16. Along the airflow direction inside the volute 1, a second baffle 212 is located downstream of the volute tongue 16 and spaced apart from it. This allows for optimization of the position of the second baffle 212. The second baffle 212 can be adjusted according to the operating conditions of the air conditioner to reduce the area of ​​the low-speed zone of the exhaust vent 11, thereby increasing airflow and reducing fin noise, resulting in better noise reduction.

[0056] Optionally, such as Figure 3 As shown, the baffle 21 includes a third baffle 213, which is arranged near the side edge of the exhaust port 11. The rotation axis of the third baffle 213 is parallel to the vertical direction of the volute 1. It can be understood that the third baffle 213 is arranged on one side of the exhaust port 11 along the left-right direction, thereby expanding the airflow adjustment range of the volute assembly and making the air outlet angle and air outlet area of ​​the exhaust port 11 more widely adjustable.

[0057] In one example, such as Figure 3As shown, the baffle 21 includes a third baffle 213 and a fourth baffle 214. The third baffle 213 is arranged near the left edge of the exhaust port 11, and the fourth baffle 214 is arranged near the right edge of the exhaust port 11. The rotation axes of the third baffle 213 and the fourth baffle 214 are both parallel to the vertical direction of the volute 1. It can be understood that the left and right air outlet angles of the exhaust port 11 can be adjusted by the third baffle 213 and the fourth baffle 214 respectively, so that the air outlet angle and air outlet area of ​​the exhaust port 11 can be adjusted within a wider range.

[0058] like Figure 4 As shown, another embodiment of the centrifugal fan of the present invention includes a volute assembly and an impeller 3. The volute assembly is the same as that of the present invention, and the impeller 3 is disposed inside the volute 1.

[0059] According to the centrifugal fan of the present invention, since the baffle 21 is rotatably installed on the outer edge of the exhaust port 11, the driver 22 can drive the baffle 21 to rotate to adjust the air outlet area of ​​the exhaust port 11. Thus, the air conditioner can adjust the air outlet area of ​​the exhaust port 11 according to different operating conditions, which helps to reduce the probability of aerodynamic noise from the air conditioner and ensure the operating efficiency of the air conditioner.

[0060] like Figure 5 and Figure 6 As shown, another embodiment of the air conditioner of this utility model includes: a housing 4, an air outlet frame 5, a centrifugal fan 62, a heat exchanger 61, and a water collection tray 62. A first air outlet 51 is provided on the front side of the air outlet frame 5. The centrifugal fan 62 is the centrifugal fan 62 of this utility model, which is located inside the housing 4. The exhaust port 11 can deliver air towards the first air outlet 51 and the second air outlet 52. The heat exchanger 61 is located inside the housing 4 and on the rear side of the air outlet frame 5. The water collection tray 62 is located below the heat exchanger 61.

[0061] According to the embodiment of the present invention, since the baffle 21 is arranged close to the outer edge of the exhaust port 11, the driver 22 can drive the baffle 21 to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port 11. Thus, the air conditioner can adjust the air outlet area and / or air outlet angle of the exhaust port 11 according to different operating conditions, which helps to reduce the probability of aerodynamic noise in the air conditioner and ensure the operating efficiency of the air conditioner.

[0062] An air outlet frame 5 is located on the outer casing 4, and a second air outlet 52 is provided on the lower side of the air outlet frame 5. The exhaust vent 11 can supply air towards the first air outlet 51 and the second air outlet 52. Since the exhaust vent 11 can supply air towards the first air outlet 51 and the second air outlet 52, the air supply range of the air conditioner can be expanded, improving the user experience.

[0063] For example, the air conditioner is a ducted air conditioner to improve the air output effect of the ducted air conditioner.

[0064] Optionally, such as Figure 5 and Figure 6 As shown, the air outlet frame 5 is a one-piece injection molded part. This facilitates the processing and manufacturing of the air outlet frame 5, and allows for high production precision.

[0065] Optionally, the air outlet frame 5 is detachably mounted on the outer casing 4. Since the air outlet frame 5 is detachably mounted on the outer casing 4, it facilitates the disassembly, assembly, and maintenance of the air conditioner in the future.

[0066] like Figure 5 and Figure 6 As shown, the outer casing 4 includes an outlet section 41, with open front and lower ends. An air outlet frame 5 is detachably mounted on the outlet section 41. Because the air outlet frame 5 is connected to the outlet section 41, the structural strength of the connection point is improved, and the air outlet frame 5 is easily matched with the outer casing 4. Furthermore, the detachable mounting of the air outlet frame 5 on the outlet section 41 facilitates the later disassembly, assembly, and maintenance of the air conditioner.

[0067] Optionally, such as Figure 6 As shown, the housing 4 has a front outlet portion 4101 and a lower outlet portion 4102. At least a portion of the air outlet frame 5 is fitted at the front outlet portion 4101 and the lower outlet portion 4102, and at least one of the front outlet portion 4101 and the lower outlet portion 4102 is formed on a sheet metal part. This can effectively improve the structural strength of the connection position between the air outlet frame 5 and the housing 4, and facilitate the matching of the air outlet frame 5 and the housing 4.

[0068] like Figure 6 As shown, the outer casing 4 includes a left side plate 411, a right side plate 412, an upper cover plate 413, and a lower bottom plate 414. The left side plate 411 and the right side plate 412 are arranged opposite each other and spaced apart in the left-right direction. The upper cover plate 413 is located at the upper end of the left side plate 411 and the right side plate 412, and the lower bottom plate 414 is located at the lower end of the left side plate 411 and the right side plate 412. At least a portion of the upper cover plate 413, the left side plate 411, and the right side plate 412 encloses to form a front outlet 4101, and at least a portion of the lower bottom plate 414 encloses to form a lower outlet 4102. At least a portion of the air outlet frame 5 is detachably provided at the front outlet 4101 or the lower outlet 4102. This facilitates the processing and manufacturing of the outer casing 4 and makes the assembly method of the outer casing 4 and the air outlet frame 5 more reasonable and the structure more stable.

[0069] Optionally, the air conditioner also includes an air outlet panel assembly, which is fitted onto the outside of the first air outlet 51 and / or the second air outlet 52. This can improve the air outlet effect of the air conditioner and expand its air delivery range. The air outlet panel assembly is communicatively connected to the air conditioner's main unit.

[0070] For example, the air outlet panel assembly responds to instructions from an application, control panel, or remote control device, which has a display interface, such as... Figure 7 As shown, the display interface includes at least one of front air outlet, bottom air outlet, and dual air outlet. This can improve the airflow effect of the air conditioner and expand its air delivery range.

[0071] The air outlet panel assembly has an air outlet and includes air guides and / or air sweeping components. The air guides and / or air sweeping components are located at the air outlet. The air sweeping components enable air to be swept left and right in the air outlet, while the air guides can open and close the air outlet and adjust the air outlet angle. Therefore, the air outlet panel assembly can improve the uniformity and comfort of the air conditioning system through three-dimensional airflow adjustment.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0076] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A volute assembly, characterized by, include: A volute (1) having an exhaust vent (11); The baffle mechanism (2) includes a driver (22) and a baffle (21). The baffle (21) is arranged near the outer edge of the exhaust port (11). The driver (22) is connected to the baffle (21). The driver (22) can drive the baffle (21) to rotate to adjust the air outlet area and / or air outlet angle of the exhaust port (11).

2. The volute assembly of claim 1, wherein, The baffle (21) includes a first baffle (211), which is arranged near the upper edge of the exhaust port (11), and the rotation axis of the first baffle (211) is parallel to the left and right direction of the volute (1).

3. The volute assembly of claim 2, wherein, The volute (1) has a first end plate (12) and a second end plate (13), the first end plate (12) and the second end plate (13) are respectively arranged on the left and right sides of the exhaust port (11), and the first baffle (211) has a sealing element at the contact position with at least one of the first end plate (12) and the second end plate (13).

4. The volute assembly of claim 3, wherein, At least one of the first end plate (12) and the second end plate (13) is provided with a stop (14), and when the first baffle (211) rotates to the limit position, the first baffle (211) abuts against the stop (14).

5. The volute assembly of claim 4, wherein, The stop (14) includes a first stop (141) and a second stop (142). The first stop (141) is located on the upper side of the first baffle (211), and the second stop (142) is located on the lower side of the first baffle (211). The first baffle (211) can rotate between the first stop (141) and the second stop (142).

6. The volute assembly of claim 2, wherein, The volute (1) includes a diffuser section (15), and the exhaust port (11) is located at the outlet end of the diffuser section (15). Along the flow direction of the airflow in the diffuser section (15), the length of the diffuser section (15) is LO, and the length of the first baffle (211) is L1. When at least a portion of the first baffle (211) is located upstream of the exhaust port (11) along the direction of airflow, L0≤L1≤3L0; When the first baffle (211) is located downstream of the exhaust port (11) along the airflow direction, 0.6L0≤L1≤L0.

7. The volute assembly of claim 1, wherein The angular rotation range of the baffle is θ, where 0 < θ ≤ 15°.

8. The volute assembly of any one of claims 1-7, wherein, The baffle (21) includes a second baffle (212), which is arranged near the lower edge of the exhaust port (11), and the rotation axis of the second baffle (212) is parallel to the left and right direction of the volute (1).

9. The volute assembly of any one of claims 1-7, wherein, The baffle (21) includes a third baffle (213), which is arranged near the side edge of the exhaust port (11), and the rotation axis of the third baffle (213) is parallel to the vertical direction of the volute (1).

10. A centrifugal fan characterized by include: The volute assembly is the volute assembly according to any one of claims 1-9; The wind turbine (3) is located inside the volute (1).

11. An air conditioner characterized by comprising: include: Outer shell (4); An air outlet frame (5) is provided on the front side of the air outlet frame (5); Centrifugal fan, wherein the centrifugal fan is the centrifugal fan as described in claim 10, wherein the centrifugal fan is disposed inside the outer casing (4), and the exhaust port (11) can deliver air toward the first air outlet (51); Heat exchanger (61), the heat exchanger (61) is disposed inside the outer casing (4) and located on the rear side of the air outlet frame (5); A water receiving tray (62) is located on the lower side of the heat exchanger (61).

12. The air conditioner of claim 11, wherein The air outlet frame (5) is located on the outer shell (4). A second air outlet (52) is provided on the lower side of the air outlet frame (5). The exhaust port (11) can send air towards the first air outlet (51) and the second air outlet (52). The air outlet frame (5) is an integrally molded injection molded part.

13. The air conditioner of claim 11, wherein The air outlet frame (5) is detachably mounted on the outer casing (4).

14. The air conditioner of claim 13, wherein The housing (4) has a front outlet and a lower outlet, at least a portion of the air outlet frame (5) is fitted at the front outlet and the lower outlet, and at least one of the front outlet and the lower outlet is formed on a sheet metal part.

15. The air conditioner of claim 11, wherein The air conditioner in question is a ducted air conditioner.

16. The air conditioner of claim 11, wherein The air conditioner also includes an air outlet panel assembly, which is fitted to the outside of the first air outlet (51) and / or the second air outlet (52).

17. The air conditioner of claim 16, wherein The air outlet panel assembly responds to instructions from an application, control panel, or remote control device, the application, control panel, or remote control device having a display interface including at least one of front air outlet, bottom air outlet, and dual air outlet.

18. The air conditioner of claim 16, wherein The air outlet panel assembly has a panel air outlet and includes an air guide and / or an air sweeping component. The air guide and / or air sweeping component is disposed at the panel air outlet. The air sweeping component realizes air sweeping in the left and right directions of the panel air outlet. The air guide can open and close the panel air outlet and adjust the air outlet angle of the panel air outlet.

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