Air duct components and air conditioners

Abstract

The present invention provides an air duct component and an air conditioner. The air duct component includes: an air duct body, which is provided with a circulation channel; a fan blade assembly, wherein a plurality of fan blade assemblies are arranged in the circulation channel and are arranged at intervals along the axial direction of the circulation channel; a mounting plate and a driving assembly, wherein the mounting plate is installed in the circulation channel, the driving assembly is installed on the mounting plate, the driving assembly is connected to the fan blade assembly, a yield channel is provided on the mounting plate, and a rectifying assembly is provided in the yield channel; a first flow guide assembly and a second flow guide assembly, wherein the first flow guide assembly is arranged at the first end of the circulation channel, and the second flow guide assembly is arranged at the second end of the circulation channel. The air duct component of the present invention can switch the inlet and outlet directions of the airflow, and there are the first flow guide assembly, the rectifying assembly and the second flow guide assembly at the same time, so that the air duct component has both inlet pre-rotation and outlet rectification, and also has a rectifying effect in the middle, which greatly optimizes the airflow direction channel and increases the working efficiency of the fan blade assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air duct component and an air conditioner. Background Art

[0002] In order to improve the energy utilization rate of the air conditioner and improve human comfort, different air outlet methods are required in different modes. In cooling mode, cold air blows out from the top to achieve a shower-like cooling effect; in heating mode, hot air blows out from the bottom to achieve a carpet-like heating effect. Bath-like cooling and carpet-like heating can more efficiently utilize the gas's own properties and achieve higher energy utilization.

[0003] However, the three types of fan blades that are widely used in air-conditioning products on the market are centrifugal fan blades, cross-flow fan blades, and axial flow fan blades. Different fan blade forms need to be configured to meet the model development for different usage requirements and air inlet and outlet methods. However, there is no fan blade and its air duct that can switch the direction of air inlet and outlet only by changing the direction of rotation of the fan blade. This makes the traditional air-conditioning inlet only allow air to enter and the outlet only allow air to flow out. Although the existing distributed air supply technology can realize air supply from the upper and lower air outlets, the lower air outlet will also blow out cold air in the cooling mode, and the upper air outlet will also blow out hot air in the heating mode, which cannot achieve the best energy utilization.

[0004] Therefore, there is an urgent need in the market to provide an air duct structure that can switch the direction of the air inlet and outlet. Summary of the invention

[0005] The main purpose of the present invention is to provide an air duct component and an air conditioner to solve the problem that the air flow inlet and outlet directions of the air duct component in the prior art cannot be switched and the efficiency is low.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a duct component, comprising: a duct body, on which a circulation channel is arranged; a fan blade assembly, a plurality of the fan blade assemblies are arranged in the circulation channel and arranged at intervals along the axial direction of the circulation channel; a mounting plate and a driving assembly, the mounting plate is installed in the circulation channel, the driving assembly is installed on the mounting plate, the driving assembly is drivingly connected to the fan blade assembly, the mounting plate is provided with a yield channel, and a rectifying assembly is arranged in the yield channel; a first guide assembly and a second guide assembly, the first guide assembly is arranged at a first end of the circulation channel, and the second guide assembly is arranged at a second end of the circulation channel.

[0007] Furthermore, the first flow guide assembly and the second flow guide assembly both include: a positioning column; and a guide vane, wherein a plurality of the guide vanes are arranged at intervals along the outer circumference of the positioning column.

[0008] Furthermore, there are two fan blade assemblies, and the two fan blade assemblies are placed in the same manner, and the two fan blade assemblies are respectively located on both sides of the mounting plate.

[0009] Furthermore, the driving assembly includes a driving motor, and the fan blade assembly is mounted on an output shaft of the driving motor.

[0010] Furthermore, the deflector is arranged in a trumpet-shaped structure, and an end of the trumpet-shaped structure with a larger opening is arranged toward the first end of the circulation channel.

[0011] Furthermore, the driving assembly is located inside the air duct, and the clearance channel is an annular channel located on the outer periphery of the air duct; the rectifying assembly includes a plurality of rectifying blades, and the plurality of rectifying blades are evenly arranged in the annular channel.

[0012] Furthermore, the fan blade assembly includes a positioning sleeve and a plurality of fan blades, and the plurality of fan blades are evenly spaced along the outer circumference of the positioning sleeve.

[0013] Furthermore, the fan blade assembly also includes a splitter blade, which is fixed on the outer side wall of the positioning sleeve and is located between two adjacent blades.

[0014] Further, the air duct body includes: a first air duct body, the middle section of the circulation channel on the first air duct body is provided with an inwardly concave opening, and the plurality of fan blade assemblies are respectively located on both sides of the inwardly concave opening; a second air duct body, the cross-sectional area of ​​the middle section of the circulation channel on the second air duct body does not change along the axial direction, and the fan blade assembly is located in the middle section; the first air duct body and the second air duct body can be switchably mounted on the outer periphery of the fan blade assembly, the mounting plate, the drive assembly, the first guide assembly and the second guide assembly.

[0015] Further, the distance between the fan blade assembly closest to the inner concave shrinkage opening in the first air duct body and the first end of the circulation channel is smaller than the distance between the inner concave shrinkage opening and the first end of the circulation channel.

[0016] According to another aspect of the present invention, an air conditioner is provided, comprising an air duct component, wherein the air duct component is the above-mentioned air duct component.

[0017] By applying the technical solution of the present invention, a first flow guide component is arranged at the first end of the circulation channel and a second flow guide component is arranged at the second end of the circulation channel, and a mounting plate with a rectifying component is arranged inside the circulation channel. The first flow guide component, the rectifying component and the second flow guide component exist at the same time, so that the air duct component has both inlet pre-rotation and outlet rectification, and a rectifying effect in the middle, which greatly optimizes the airflow direction channel and increases the working efficiency of the fan blade assembly.

[0018] Specifically, when working in the bottom-in-top-out mode, the driving assembly rotates in a counterclockwise direction, driving the fan blade assembly to rotate in a counterclockwise direction in the circulation channel, and the airflow flows from the first end of the circulation channel to the second end. At this time, the first guide assembly and the second guide assembly respectively play the role of inlet pre-rotation and outlet rectification; in the top-in-bottom-out mode, the driving assembly rotates in a clockwise direction, driving the fan blade assembly to rotate in a clockwise direction in the circulation channel, and the airflow flows from the second end of the circulation channel to the first end. At this time, the second guide assembly and the first guide assembly respectively play the role of inlet pre-rotation and outlet rectification. In both modes, the mounting plate with the rectification assembly can satisfy the installation and fixation of the driving assembly while playing the role of rectifying the airflow. It can change the airflow direction between the circulation channels from circumferential motion to axial motion, reduce the eddy loss between the airflows, greatly improve the efficiency of the fan blade assembly, and increase the air output.

[0019] Since a plurality of blade assemblies are arranged in the axial direction of the circulation channel of the air duct component in the present invention, the air volume in the circulation channel can be greatly increased through the action of the plurality of blade assemblies, and the effect of multiple pressurization can be achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 The diagram schematically shows a front view of the air duct component of the present invention when it is assembled with the first air duct body;

[0022] Figure 2 A cross-sectional view schematically shows the air duct component of the present invention when it is in a bottom air inlet and top air outlet mode;

[0023] Figure 3 The diagram schematically shows a front view of the air duct component of the present invention when the second air duct body is assembled;

[0024] Figure 4 A cross-sectional view schematically shows the air duct component of the present invention when it is in an upper air inlet and lower air outlet mode;

[0025] Figure 5A schematic perspective view of the air duct component of the present invention when assembled with the first air duct body is shown;

[0026] Figure 6 A schematic perspective view of the air duct component of the present invention when assembled with the second air duct body is shown;

[0027] Figure 7 A perspective view schematically shows a first flow guide assembly and a second flow guide assembly of the present invention;

[0028] Figure 8 A perspective view schematically shows a first embodiment of a fan blade assembly of the present invention;

[0029] Fig. 9 Schematically shows a front view of a first embodiment of a fan blade assembly of the present invention;

[0030] Fig.10 A perspective view schematically shows a second embodiment of a fan blade assembly of the present invention;

[0031] Fig.11 Schematically shows a front view of a second embodiment of a fan blade assembly of the present invention;

[0032] Fig.12 A schematic diagram of a first perspective view of a mounting plate of the present invention is shown;

[0033] Fig.13 A top view of a mounting plate of the present invention is schematically shown;

[0034] Fig.14 A second perspective view of the mounting plate of the present invention is schematically shown;

[0035] Fig.15 Schematically shows a bottom view of the mounting plate of the present invention;

[0036] Fig.16 A cross-sectional view of a mounting plate of the present invention is schematically shown;

[0037] Fig.17 A schematic diagram showing the fluid flow direction when the air duct component of the present invention is in the state of lower air intake and upper air outlet;

[0038] Fig.18 The fluid flow diagram of the air duct component of the present invention is schematically shown when the air is in the upper air intake and lower air outlet state.

[0039] The above drawings include the following reference numerals:

[0040] 10. Air duct body; 11. First air duct body; 111. Inwardly concave neck; 12. Second air duct body; 121. Flow channel; 20. Fan blade assembly; 21. Positioning sleeve; 22. Fan blade; 23. Splitter blade; 30. Drive assembly; 31. Output shaft; 40. Mounting plate; 41. Air guide cover; 42. Make way channel; 43. Rectification assembly; 50. First air guide assembly; 60. Second air guide assembly; 561. Positioning column; 562. Guide vane. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0044] See also Figures 1 to 18 As shown, according to an embodiment of the present invention, an air conditioner is provided. The air conditioner in this embodiment includes an air duct component.

[0045] See also Figures 1 to 6 As shown, the air duct component in this embodiment includes an air duct body 10 , a fan blade assembly 20 , a mounting plate 40 , a driving assembly 30 , a first air guide assembly 50 and a second air guide assembly 60 .

[0046] Among them, a circulation channel 121 is arranged on the air duct body 10; a plurality of fan blade assemblies 20 are arranged in the circulation channel 121 and are arranged at axial intervals along the circulation channel 121; a mounting plate 40 passes through the circulation channel 121, a driving assembly 30 is mounted on the mounting plate 40, the driving assembly 30 is connected to the fan blade assembly 20 to drive the fan blade assembly 20 to rotate in a clockwise direction or a counterclockwise direction, a yield channel 42 is arranged on the mounting plate 40, a rectifying assembly 43 is arranged in the yield channel 42; a first guide assembly 50 is arranged at a first end of the circulation channel 121, and a second guide assembly 60 is arranged at a second end of the circulation channel 121.

[0047] The present invention arranges a first guide component 50 at the first end of the circulation channel 121 and a second guide component 60 at the second end of the circulation channel 121, and arranges a mounting plate 40 with a rectifying component 43 inside the circulation channel 121. The first guide component 50, the rectifying component 43 and the second guide component 60 exist at the same time, so that the air duct component has both inlet pre-rotation and outlet rectification, and a middle rectification function, which greatly optimizes the airflow direction channel and increases the working efficiency of the fan blade assembly 20.

[0048] Specifically, when working in bottom-in-top-out mode, Figure 2 From the top view, the driving assembly 30 rotates counterclockwise, driving the fan blade assembly 20 to rotate counterclockwise in the circulation channel 121, and the airflow flows from the first end to the second end of the circulation channel 121. At this time, the first guide assembly 50 and the second guide assembly 60 respectively play the role of inlet pre-swirl and outlet rectification; in the top-in and bottom-out mode, Figure 4 From the top view, the driving assembly 30 rotates in the clockwise direction, driving the fan blade assembly 20 to rotate in the circulation channel 121 in the clockwise direction, and the airflow flows from the second end of the circulation channel 121 to the first end. At this time, the second guide assembly 60 and the first guide assembly 50 respectively play the role of inlet pre-rotation and outlet rectification. In both modes, the mounting plate 40 with the rectification assembly 43 can satisfy the installation and fixation of the driving assembly 30 while having the effect of rectifying the airflow. It can change the airflow direction between the circulation channels 121 from circumferential motion to axial motion, reduce the vortex loss between the airflows, greatly improve the efficiency of the fan blade assembly 20, and increase the air output.

[0049] Since a plurality of blade assemblies 20 are provided in the axial direction of the circulation channel 121 of the air duct component in this embodiment, the air volume in the circulation channel 121 can be greatly increased through the action of the plurality of blade assemblies 20, and a multiple pressurization effect can be achieved at the same time.

[0050] Preferably, there are two fan blade assemblies 20 in this embodiment, and the two fan blade assemblies 20 are respectively located on both sides of the mounting plate 40. During actual operation, the mounting plate 40 with the rectifying assembly 43 can satisfy the installation and fixation of the driving assembly 30 while having a rectifying effect on the airflow. It can change the airflow direction between the two fan blade assemblies 20 from circumferential motion to axial motion, reduce eddy current losses between airflows, greatly improve the efficiency of the fan blade assembly, and increase the air output.

[0051] Of course, in other embodiments of the present invention, more than two fan blade assemblies 20 may be provided. As long as they are other deformation modes under the conception of the present invention, they are all within the protection scope of the present invention.

[0052] See also Figures 1 to 6 As shown, the air duct body 10 in this embodiment includes a first air duct body 11 and a second air duct body 12, wherein the middle section of the flow channel 121 on the first air duct body 11 is provided with an inner concave concave opening 111, and a plurality of fan blade assemblies 20 are respectively located on both sides of the inner concave concave opening 111, and an end of one of the plurality of fan blade assemblies 20 protrudes from the inner concave concave opening 111; the cross-sectional area of ​​the middle section of the flow channel 121 on the second air duct body 12 does not change along the axial direction, and the fan blade assembly 20 is located in the middle section; the first air duct body 11 and the second air duct body 12 can be switchably arranged on the outer periphery of the fan blade assembly 20, the mounting plate 40, the drive assembly 30, the first guide assembly 50 and the second guide assembly 60.

[0053] It should be noted that the middle section of the circulation channel 121 in this embodiment refers to the interval section of the circulation channel 121 located between the first air guide assembly 50 and the fan blade assembly 20 at the first end of the air duct body 10 .

[0054] In actual operation, the first air duct body 11 and the second air duct body 12 in this embodiment are switchably mounted on the outer periphery of the fan blade assembly 20, the fan blade assembly 20, the mounting plate 40, the drive assembly 30, the first air guide assembly 50 and the second air guide assembly 60, and can adapt to different air outlet requirements. Specifically, the first air duct body 11 in this embodiment is particularly suitable for the bottom air inlet and top air outlet mode, and the second air duct body 12 is particularly suitable for the top air inlet and bottom air outlet mode.

[0055] The distance between the fan blade assembly 20 closest to the inner concave concave opening 111 in the first air duct body 11 and the first end of the circulation channel 121 is smaller than the distance between the inner concave concave opening 111 and the first end of the circulation channel 121. In other words, the inner concave concave opening 111 of the first air duct body 11 in this embodiment is located above the bottom end of the fan blade assembly 20 at the top (see attached figure). Figure 2), so that the fan blade assembly 20 at the top can have axial suction and lateral (radial) suction functions at the same time, while increasing the secondary work capacity of the secondary air duct and improving the efficiency of the fan blade assembly 20, the effect is very significant.

[0056] See also Figures 1 to 7 As shown, the first guide assembly 50 and the second guide assembly 60 in this embodiment both include a positioning column 561 and a guide vane 562, wherein a plurality of guide vanes 562 are arranged at intervals along the outer circumference of the positioning column 561, with a simple structure, and stable and reliable.

[0057] Preferably, the driving assembly 30 in this embodiment is a driving motor. During actual installation, the fan blade assembly 20 is installed on the output shaft 31 of the driving motor. The fan blade assembly 20 is driven to rotate in a clockwise direction or a counterclockwise direction through the forward and reverse rotation of the driving motor, so that the air duct component takes in air from the first end of the circulation channel 121 and exhausts air from the second end of the circulation channel 121; or the air duct component takes in air from the second end of the circulation channel 121 and exhausts air from the first end of the circulation channel 121.

[0058] See also Figures 1 to 6 , Figures 12 to 16 As shown, a guide cover 41 is provided on the mounting plate 40 in this embodiment. The guide cover 41 in this embodiment is provided in a trumpet-shaped structure, and the end with a larger opening of the trumpet-shaped structure is provided toward the second end of the circulation channel 121. The drive component 30 is located inside the guide cover 41, so as to facilitate the protection of the drive component 30.

[0059] Preferably, the clearance channel 42 in this embodiment is an annular channel located on the outer periphery of the guide cover 41, so as to provide necessary space for the fluid flow inside the flow channel 121. The rectifying assembly 43 in this embodiment includes a plurality of rectifying blades, which are evenly arranged in the annular channel, so as to rectify the airflow in the flow channel 121, increase the guide vane area in the flow channel 121, and reduce energy loss.

[0060] See also Figures 8 to 9 As shown, in a preferred embodiment of the present invention, the fan blade assembly 20 includes a positioning sleeve 21 and a plurality of fan blades 22 , and the plurality of fan blades 22 are evenly spaced along the outer circumference of the positioning sleeve 21 .

[0061] See also Fig.10 and Fig.11 As shown, in another embodiment of the present invention, the structure of the fan blade assembly 20 is Figure 8 and Fig. 9 The difference is that the fan blade assembly 20 in this embodiment further includes a splitter blade 23, which is fixed on the outer side wall of the positioning sleeve 21 and located between two adjacent fan blades 22.

[0062] Recombination Figures 1 to 18 As shown, the air duct component in this embodiment is a two-stage mixed flow air duct. During actual operation, the air duct component can switch the inlet and outlet directions of the airflow to achieve two air supply modes: top-in and bottom-out or bottom-in and top-out. Figure 2 as well as Figure 4 The fan blade assembly 20 in this embodiment has wide blades and no outer sealing ring. There are two forms with splitter blades 23 and without splitter blades 23. The fan blade assembly 20 can achieve two effects in the axial direction and the centrifugal direction during its working process. Figure 2 and Figure 4 The first air duct body 11 and the second air duct body 12 shown can realize two air supply modes: upper-in and lower-out, or lower-in and upper-out.

[0063] In cooling mode, the air conditioner adopts the bottom-in and top-out air supply mode, such as Figure 2 As shown, from the top view along the air duct component, at this time, both the two-stage fan blade assemblies 20 rotate counterclockwise. After the airflow passes through the dual effects of pre-tightening and rectification of the first guide assembly 50, it enters the lower end of the bottom fan blade assembly 20. After the bottom fan blade assembly 20 does work, it passes through the mounting plate 40 with the rectification assembly 43. The mounting plate 40 can rectify the airflow blown out from the bottom fan blade assembly 20 while satisfying the function of fixing the drive motor, and converts the circumferential motion of the airflow into axial motion to reduce the eddy loss between the airflows. The rectified airflow enters the upper end from the lower end of the flow channel 121, and after the upper fan blade assembly 20 does work twice, it is blown out from the upper end of the upper fan blade assembly 20, passes through the second guide assembly 60 for secondary rectification, and then blows out of the air duct body 10, thereby realizing the bottom-in and top-out air supply mode. The flow direction of the airflow inside the fan blade assembly 20 can be seen. Fig.17 shown.

[0064] In heating mode, the air conditioner adopts the top-in, bottom-out air supply mode, such as Figure 4 As shown, from the top view along the air duct component, at this time, the two-stage fan blade assembly 20 rotates in the clockwise direction. After the airflow enters from the second end, i.e., the top, of the circulation channel 121, it first passes through the second guide assembly 60. At this time, the second guide assembly 60 plays a dual role of inlet preselection and rectification. After that, after the airflow passes through the upper fan blade assembly 20 to do work, it passes through the mounting plate 40 with the rectification assembly 43. The rectification assembly 43 can rectify the airflow blown out from the upper fan blade assembly 20, and convert the circumferential motion of the airflow into axial motion to reduce the eddy current loss between the airflows. After the rectified airflow is worked twice by the bottom fan blade assembly 20, the circumferential motion of the airflow is converted into axial motion again by the first guide assembly 50, and finally blown out of the air duct body 10, realizing the top-in and bottom-out air supply mode. The flow direction of the airflow inside the fan blade assembly 20 can be seen. Fig.18shown.

[0065] In this embodiment, the two fan blade assemblies 20 are placed in the same direction, which means that the two fan blade assemblies 20 in the air duct body 10 are placed in the same way, that is, the rotation directions of the fan blades 22 on the two fan blade assemblies 20 are consistent. This method can increase the functional capacity of the fan blade assembly 20.

[0066] The coexistence of the first guide assembly 50, the mounting plate 40 with the rectifying assembly 43 between the two-stage fan blade assembly 20, and the second guide assembly 60 enables the air duct component to have both inlet pre-rotation and outlet rectification, as well as rectification between the two-stage fan blade assembly 20, which greatly optimizes the airflow direction channel, increases the efficiency of the fan blade assembly 20, and brings into play the effectiveness of the two-stage mixed flow fan blade assembly 20. In the bottom-in and top-out mode, the first guide assembly 50 and the second guide assembly 60 respectively play the role of inlet pre-rotation and outlet rectification; in the top-in and bottom-out mode, the roles of the two are exactly the opposite. In both modes, the mounting plate 40 with the rectifying assembly 43 can satisfy the installation and fixation of the drive motor while playing the role of rectifying the airflow. It can change the airflow direction between the two-stage fan blade assembly 20 from circumferential motion to axial motion, reduce the vortex loss between the airflow, greatly improve the efficiency of the fan blade assembly, and increase the air output. The outer edge of the guide cover 41 on the mounting plate 40 is connected to the rectifying assembly 43. This structure can guide the airflow so that the airflow converges to the rectifying blades, while also increasing the guide vane area and reducing energy loss.

[0067] The air duct component in the present invention can realize the secondary working process of the fan blade assembly 20, and this method can increase the working capacity of the entire fan blade assembly 20. Take the bottom-in and top-out as an example, after the fan blade assembly 20 at the bottom works, it is rectified by the mounting plate 40 with the rectifier assembly, which can reduce the eddy loss between the airflows, and then the fan blade assembly 20 at the top works for the second time, which can greatly improve the working capacity of the fan blade assembly 20 and can achieve the effect of secondary supercharging. Therefore, the air duct component can greatly increase the air output, reduce the energy loss of the fan blade assembly, and at the same time achieve a greater supercharging effect, which can overcome greater resistance, and is applied to air conditioners with two air supply modes of top-in and bottom-out or bottom-in and top-out, with significant effects.

[0068] Of course, in other embodiments of the present invention, the air duct component is not limited to use in air conditioners, nor is it limited to use in heating mode or cooling mode. As long as other structures of the air duct component of the present invention are required, they are within the protection scope of the present invention.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] (1) The air duct component of the present invention can realize the switching of the inlet and outlet directions of the airflow.

[0071] (2) The air duct component of the present invention can greatly increase the air volume compared to the air duct of a single fan blade assembly, and at the same time achieve the effect of multiple pressurization.

[0072] (3) The position of the inner concave opening between the two-stage air ducts in the present invention is placed above the bottom end of the top fan blade assembly, so that the top fan blade assembly can have axial suction and lateral (radial) suction functions at the same time, while increasing the secondary work capacity of the secondary air duct and improving the efficiency of the fan blade assembly.

[0073] (4) The present invention adds a first guide assembly below the bottom fan blade assembly, adds a mounting plate with a rectifying assembly between the two-stage fan blade assemblies, and adds a second guide assembly above the upper fan blade assembly. The coexistence of the first guide assembly, the rectifying assembly, and the second guide assembly enables the air duct component to have both inlet pre-swirl and outlet rectification, as well as rectification between the two-stage fan blade assemblies, which greatly optimizes the airflow direction channel and increases the efficiency of the fan blade assembly.

[0074] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air duct component, characterized in that: include: An air duct body (10), wherein the air duct body (10) is provided with a circulation channel (121); A fan blade assembly (20), wherein a plurality of the fan blade assemblies (20) are arranged in the circulation channel (121) and are spaced apart along the axial direction of the circulation channel (121); A mounting plate (40) and a drive assembly (30), wherein the mounting plate (40) is mounted in the circulation channel (121), the drive assembly (30) is mounted on the mounting plate (40), the drive assembly (30) is drivingly connected to the fan blade assembly (20), the mounting plate (40) is provided with a clearance channel (42), and a rectifier assembly (43) is provided in the clearance channel (42); a first flow guiding component (50) and a second flow guiding component (60), wherein the first flow guiding component (50) is arranged at a first end of the circulation channel (121), and the second flow guiding component (60) is arranged at a second end of the circulation channel (121); The air duct body (10) comprises: a first air duct body (11), a middle section of the flow channel (121) on the first air duct body (11) being provided with an inwardly concave opening (111), and a plurality of the fan blade assemblies (20) being respectively located on both sides of the inwardly concave opening (111); A second air duct body (12), wherein the cross-sectional area of ​​a middle section of the circulation channel (121) on the second air duct body (12) does not change along the axial direction, and the fan blade assembly (20) is located in the middle section; The first air duct body (11) and the second air duct body (12) are switchably sleeved on the outer periphery of the fan blade assembly (20), the mounting plate (40), the drive assembly (30), the first flow guide assembly (50) and the second flow guide assembly (60).

2. The air duct component according to claim 1, characterized in that: The first flow guiding component (50) and the second flow guiding component (60) both comprise: Positioning column (561); Guide vanes (562), wherein a plurality of guide vanes (562) are arranged at intervals along the outer circumference of the positioning column (561).

3. The air duct component according to claim 1, characterized in that: There are two fan blade assemblies (20), and the two fan blade assemblies (20) are placed in the same manner. The two fan blade assemblies (20) are respectively located on two sides of the mounting plate (40).

4. The air duct component according to claim 3, characterized in that: The driving assembly (30) comprises a driving motor, and the fan blade assembly (20) is mounted on an output shaft (31) of the driving motor.

5. The air duct component according to claim 1, characterized in that: The mounting plate (40) is provided with a flow guide cover (41), the flow guide cover (41) being provided in a trumpet-shaped structure, and an end of the trumpet-shaped structure with a larger opening is provided towards the first end of the circulation channel (121).

6. The air duct component according to claim 5, characterized in that: The driving assembly (30) is located inside the air deflector (41), and the clearance channel (42) is an annular channel located on the outer periphery of the air deflector (41); The rectifying assembly (43) comprises a plurality of rectifying blades (431), and the plurality of rectifying blades (431) are evenly arranged in the annular channel.

7. The air duct component according to claim 1, characterized in that: The fan blade assembly (20) comprises a positioning sleeve (21) and a plurality of fan blades (22), wherein the plurality of fan blades (22) are evenly spaced along the outer circumference of the positioning sleeve (21).

8. The air duct component according to claim 7, characterized in that: The fan blade assembly (20) further comprises a splitter blade (23), wherein the splitter blade (23) is fixed on the outer side wall of the positioning sleeve (21) and is located between two adjacent fan blades (22).

9. The air duct component according to claim 1, characterized in that: The distance between the fan blade assembly (20) closest to the inner concave shrinkage opening (111) in the first air duct body (11) and the first end of the circulation channel (121) is smaller than the distance between the inner concave shrinkage opening (111) and the first end of the circulation channel (121).

10. An air conditioner, comprising an air duct component, characterized in that: The air duct component is the air duct component according to any one of claims 1 to 9.

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