Airflow regulation device

CN224875542UActive Publication Date: 2026-10-23SUNRIBIO CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522655948.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-10-23
Estimated Expiration
2035-12-15

AI Technical Summary

Technical Problem

[0005]有鉴于此,本实用新型实施例提供了一种气流调控装置,以此解决传统空调和风扇难以应用于高密度种植环境的问题

Benefits of technology

通过至少一个第一管道和/或至少一个第二管道构成的送风管道,能够将调节后的空气精准输送到高密度种植区域的任意需调点,快速均衡该点与周围环境的温湿度差,解决了传统设备调控粗放、分布不均的问题,可以应用于高密度种植环境;通过送风管道有效减少了气流在输送过程中的扩散损耗,使得送风机产生的气流能送达更远距离,特别适合连栋温室、大型植物工厂等大空间应用,利用控制箱内的控制器可以确保送风机的风压稳定,出风风速均匀,确保了整个送风路径上气候调节效果的一致性;以主体框架为基础的骨架,其他的所有部件均可以通过标准接口例如螺栓螺帽、卡扣、卡箍等安装在主体框架上,根据种植区的实际形状以及面积,进行单通道、多通道、横向或纵向送风管道的灵活排列组合,这样可以实现了极高的装配兼容性和空间适应性,特别的,通过这种灵活的安装方式,可以将单个第一管道的长度限制在一定范围内,便于运输和收纳,兼容性与扩展性强:完全的模块化设计使得系统无需专业工具即可完成大部分组装。用户可根据种植布局的变化,轻松调整风管的走向、长度和出风方式,支持随作物生长或种植模式改变而进行功能扩展或重组,显著提升了空间利用率和经济性。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224875542U_ABST
    Figure CN224875542U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of airflow regulation and control devices, it is related to construction equipment field, comprising: main frame;At least one air supply fan, all are set on main frame;Control box, set on main frame;At least one air supply duct, equal to the number of air supply fan and one-to-one corresponding setting, one end of air supply duct is connected with the output end of corresponding air supply fan, and the other end of air supply duct is closed by duct plug head;Air supply duct is constituted by at least one first duct and / or at least one second duct, and first duct and second duct are respectively equipped with several first air outlet and second air outlet, multiple first ducts are connected by first extension link member, first duct and second duct are connected by second extension link member.The utility model can accurately deliver adjusted air to any required point of high-density planting area, quickly equalize the temperature and humidity difference of the point and surrounding environment.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, specifically to an airflow control device. Background Technology

[0002] In modern facility agriculture, especially in precision farming models such as high-density planting and multi-layer vertical farming, climate control of the crop growth environment is crucial. Temperature, humidity, carbon dioxide concentration, and ventilation directly affect crop growth rate, quality, and yield. Currently, common environmental control equipment mainly includes air conditioning systems, fans, and ventilation windows.

[0003] However, existing technologies have the following significant problems when applied to high-density planting environments: Traditional air conditioners and fans can only provide a rough adjustment to the overall environment, making it difficult to precisely control the local microclimate within the planting area. Especially in densely populated areas with heat sources such as supplemental lighting or equipment, or where airflow is poor, dead zones of temperature and humidity can easily form, leading to inconsistent crop growth. Traditional fans have limited air delivery distance and fixed airflow direction, making it difficult to achieve uniform and long-distance airflow delivery in complex three-dimensional planting racks. This results in poor ventilation in some areas, affecting crop photosynthesis and respiration. Existing equipment is typically designed as a fixed system, making it difficult to adjust installation locations and piping layouts, and thus hard to adapt to the spatial variations required for different planting structures and crop growth stages. The installation process is complex and demands high standards for on-site construction. Large fans, bulky ducts, and accessories occupy valuable planting space, reducing space utilization. At the same time, traditional packaging is bulky, resulting in high transportation and storage costs. Furthermore, to achieve overall cooling or ventilation, high-power equipment often needs to operate continuously, leading to low energy efficiency and high operating costs.

[0004] Therefore, there is an urgent need for an airflow control system that can be efficient, precise, flexible, and energy-saving for high-density planting environments, in order to solve the problem of local climate control and thereby improve crop yield and quality. Utility Model Content

[0005] In view of this, this utility model provides an airflow control device to solve the problem that traditional air conditioners and fans are difficult to apply to high-density planting environments.

[0006] According to a first aspect, embodiments of the present invention provide an airflow control device, comprising: Main framework; At least one blower is mounted on the main frame; A control box is mounted on the main frame, and a controller is installed inside the control box. The controller is electrically connected to all the blowers. At least one air supply duct is provided, which is equal in number to the number of air supply fans and corresponds to them one by one. One end of the air supply duct is connected to the output end of the corresponding air supply fan, and the other end of the air supply duct is sealed by a pipe plug. The air supply duct is composed of at least one first duct and / or at least one second duct, and the first duct and the second duct are respectively provided with a plurality of first air outlets and second air outlets. The plurality of first ducts are connected by a first extension connector, and the first duct and the second duct are connected by a second extension connector.

[0007] In conjunction with the first aspect, in the first embodiment of the first aspect, the output end of the blower is provided with a first connector or a second connector, both of which are disposed on the main frame. The output end of the blower is connected to the first pipe through the first connector, and the output end of the blower is connected to the second pipe through the second connector.

[0008] In conjunction with the first embodiment of the first aspect, in the second embodiment of the first aspect, the blower is fixed to the main frame by a mounting bracket.

[0009] In conjunction with the first embodiment of the first aspect, in the second embodiment of the first aspect, the first connector includes a first air inlet, a first pair of interfaces, and a first connector base. The first connector base is connected to the main frame. The first connector base is provided with a first air inlet that is connected to the input end of the first pipe. A first pair of interfaces is provided at the edge of the first air inlet. One end of the first pair of interfaces is connected to the output end of the blower, and the other end of the first pair of interfaces is connected to the input end of the first pipe.

[0010] In conjunction with the first embodiment of the first aspect, in the third embodiment of the first aspect, the second connector includes a second air inlet, a second pair of interfaces, and a second connector base. The second connector base is connected to the main frame. The second connector base is provided with a second air inlet that is connected to the input end of the second pipe. A second pair of interfaces is provided at the edge of the second air inlet. One end of the second pair of interfaces is connected to the output end of the blower, and the other end of the second pair of interfaces is connected to the input end of the second pipe.

[0011] In conjunction with the first aspect, in the fifth embodiment of the first aspect, the first pipe is provided with reinforcing ribs.

[0012] In conjunction with the first aspect, in the sixth embodiment of the first aspect, the first air outlet is configured as one or a combination of multiple of the following: circular, elliptical, slit-shaped, and louvered.

[0013] In conjunction with the sixth embodiment of the first aspect, in the seventh embodiment of the first aspect, the first air outlet is inclined.

[0014] In conjunction with the first aspect, in the eighth embodiment of the first aspect, the first pipe is fixed in the installation position by at least one hook.

[0015] In conjunction with the first aspect, in the ninth embodiment of the first aspect, a protective cover is also provided at the control box.

[0016] The airflow control device of this utility model: An air supply duct system, consisting of at least one first pipe and / or at least one second pipe, can precisely deliver regulated air to any desired point in a high-density planting area, quickly balancing the temperature and humidity difference between that point and the surrounding environment. This solves the problems of coarse control and uneven distribution associated with traditional equipment, making it suitable for high-density planting environments. The air supply duct system effectively reduces airflow diffusion losses during transport, allowing the airflow generated by the blower to reach greater distances. This makes it particularly suitable for large-space applications such as multi-span greenhouses and large plant factories. The controller within the control box ensures stable blower pressure and uniform airflow velocity, guaranteeing a smooth air supply process. Consistent climate regulation effects along the path; with the main frame as the basic framework, all other components can be installed on the main frame via standard interfaces such as bolts, nuts, clips, and clamps. Single-channel, multi-channel, horizontal, or vertical air supply ducts can be flexibly arranged and combined according to the actual shape and area of ​​the planting area, achieving extremely high assembly compatibility and spatial adaptability. In particular, this flexible installation method allows the length of individual first ducts to be limited within a certain range, facilitating transportation and storage. Strong compatibility and expandability: the fully modular design allows the system to be assembled without specialized tools. Users can easily adjust the direction, length, and air outlet method of the ducts according to changes in the planting layout, supporting functional expansion or reorganization as crops grow or planting patterns change, significantly improving space utilization and economy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in: Figure 1 This invention provides a schematic diagram of the airflow control device in one embodiment. Figure 2 It shows Figure 1 An explosion diagram; Figure 3 A schematic diagram of another configuration of the airflow control device provided by this utility model is shown; Figure 4 It shows Figure 3 One of the diagrams illustrating an explosion; Figure 5 It shows Figure 3 The second diagram of the explosion; Figure 6 It shows Figure 3 The third diagram of the explosion; In the diagram: 10-Main frame; 20-Blower; 21-Mounting base; 30-Control box; 31-Protective cover; 40-Blower duct; 41-First duct; 42-Second duct; 43-First air outlet; 44-Second air outlet; 45-First extension connector; 46-Second extension connector; 47-Reinforcing rib; 50-Device plug; 60-First connector; 70-Second connector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] In modern facility agriculture, especially in precision farming models such as high-density planting and multi-layer vertical farming, climate control of the crop growth environment is crucial. Temperature, humidity, carbon dioxide concentration, and ventilation directly affect crop growth rate, quality, and yield. Currently, common environmental control equipment mainly includes air conditioning systems, fans, and ventilation windows.

[0023] However, existing technologies have the following significant problems when applied to high-density planting environments: Traditional air conditioners and fans can only provide a rough adjustment to the overall environment, making it difficult to precisely control the local microclimate within the planting area. Especially in densely populated areas with heat sources such as supplemental lighting or equipment, or where airflow is poor, dead zones of temperature and humidity can easily form, leading to inconsistent crop growth. Traditional fans have limited air delivery distance and fixed airflow direction, making it difficult to achieve uniform and long-distance airflow delivery in complex three-dimensional planting racks. This results in poor ventilation in some areas, affecting crop photosynthesis and respiration. Existing equipment is typically designed as a fixed system, making it difficult to adjust installation locations and piping layouts, and thus hard to adapt to the spatial variations required for different planting structures and crop growth stages. The installation process is complex and demands high standards for on-site construction. Large fans, bulky ducts, and accessories occupy valuable planting space, reducing space utilization. At the same time, traditional packaging is bulky, resulting in high transportation and storage costs. Furthermore, to achieve overall cooling or ventilation, high-power equipment often needs to operate continuously, leading to low energy efficiency and high operating costs.

[0024] Therefore, there is an urgent need for an airflow control system that can be efficient, precise, flexible, and energy-saving for high-density planting environments, in order to solve the problem of local climate control and thereby improve crop yield and quality.

[0025] To address the aforementioned problems, this specification provides an airflow control device. For example... Figures 1 to 6 As shown, the airflow control device includes: The main frame 10 serves as the core skeleton for installation and support in the airflow control device. It is responsible for installing and bearing other components such as blowers, control boxes, and air supply ducts, and also for installing the entire airflow control device in the designated installation location.

[0026] At least one blower 20 is installed on the main frame 10. The blower 20 serves as the air supply source for the airflow control device. The blower 20 is selected as a fan with a wide voltage operating range and supports stepless speed regulation. It is used to deliver cold air, room temperature gas or other regulated gas to the target area through adjustable air supply power.

[0027] The control box 30, mounted on the main frame 10, contains a controller electrically connected to all the blowers 20. The controller allows for stepless adjustment of the input voltage of the corresponding blower 20, thereby changing the speed and airflow of the blower 20 and controlling the airflow intensity and temperature / humidity regulation rate in the target area. The control box 30 can be flexibly fixed to the main frame 10 according to installation requirements.

[0028] In this embodiment, a protective cover 31 is also provided at the control box 30. The protective cover 31 can be made of transparent material and can be used to protect electrical components such as controllers and circuit connectors.

[0029] At least one air supply duct 40 is provided, with an equal number of air supply fans 20 and in one-to-one correspondence. One end of the air supply duct is connected to the output end of the corresponding air supply fan 20, and the other end of the air supply duct is sealed by a pipe plug 50. The air supply duct 40 consists of at least one first duct 41 and / or at least one second duct 42, and the first duct 41 and the second duct 42 are respectively provided with a plurality of first air outlets 43 and second air outlets 44. The plurality of first ducts 41 are connected to each other by a first extension connector 45, and the first ducts 41 and the second ducts 42 are connected by a second extension connector 46. Directional air supply to the target area can be achieved through the first air outlets 43 and / or the second air outlets 44. The first ducts 41 and / or the second ducts 42 can be connected by detachable first extension connectors 45 and second extension connectors 46 to extend the air supply path. The end of the air supply duct is also sealed by a detachable pipe plug 50.

[0030] In transport mode, the first pipe 41 and / or the second pipe 42 in the air supply duct 40 are stacked and locked together using a first extension connector 45 and / or a second extension connector 46. Multiple first pipes 41 are connected to each other through the first extension connector 45, and the first pipe 41 and the second pipe 42 are connected to each other through the second extension connector 46. The first pipe 41 can be fixed to the first extension connector 45 with fasteners such as bolts, nuts, clips, and clamps to achieve mutual docking between the first pipes 41. The number of connection ports of the first extension connector 45 determines how many first pipes 41 can be docked simultaneously using the first extension connector 45. One end of the second pipe 42 is first sleeved onto the first pipe 41. The first extension connector 46 uses fasteners such as clamps to achieve mutual docking between the first pipe 41 and the second pipe 42. This detachable and extendable structure of the air supply duct 40 greatly reduces packaging gaps, shrinks the overall transport volume, and reduces logistics costs.

[0031] More specifically, the first pipe 41 is a rigid air supply pipe made of a hard material that is not easy to bend and has high hardness, and the second pipe 42 is a flexible air supply pipe made of a flexible material that is easy to bend and deform.

[0032] To ensure that the first pipe 41 has sufficient structural strength, the first pipe 41 is provided with reinforcing ribs 47.

[0033] In this embodiment, the first pipe 41 is fixed to the installation position by at least one hook 48, which is also detachable, so that each first pipe 41 can be set in the desired installation position using the hook 48.

[0034] Based on the actual working scenario, the number of air supply ducts 40, the assembly method of each air supply duct 40 (i.e., the number of first ducts 41 and / or second ducts 42), and the setting and arrangement of first air outlets 43 and / or second air outlets 44 can be determined.

[0035] For example, based on the main frame 10, all other components can be installed on the main frame 10 through standard interfaces such as bolts, nuts, clips, and clamps. According to the actual shape and area of ​​the planting area, single-channel, multi-channel, horizontal, or vertical air supply ducts 40 can be flexibly arranged and combined, which can achieve extremely high assembly compatibility and spatial adaptability. In particular, through this flexible installation method, the length of a single first duct 41 can be limited to a certain range, which is convenient for transportation and storage.

[0036] The first pipe 41 is suitable for installation in areas that are easy to install and have relatively fixed areas, while the second pipe 42 is suitable for installation in areas that require flexible layout and where rigid pipes are difficult to extend into. For example, the second pipe 42 can be meandered between crop rows or layers.

[0037] Depending on the actual application scenario, the air supply duct 40 can be composed of at least one first duct 41. If there are multiple first ducts 41, they are connected by a first extension connector 45, and the ends of each last first duct 41 are sealed with a pipe plug 50. The air supply duct 40 can also be composed of at least one second duct 42. If there are multiple second ducts 42, since the second ducts 42 are flexible air supply hoses, they can be directly connected by pipe connectors or by bonding or adhesiveting. The air supply duct 40 can also be composed of at least one first duct 41 and at least one second duct 42, for example, first duct 41-second duct 42-first duct 41, that is, two first ducts 41 are connected by a second duct 42, and both ends of the second duct 42 are connected to the first duct 41 by a second extension connector 46.

[0038] The first air outlet 43 can be set as one or a combination of one or more of the following shapes: circular, elliptical, slit-shaped, and louvered. The first air outlet 43 is set at an angle, and the angle of the angle can be set according to the actual application scenario to better deliver air.

[0039] If the air supply duct 40 includes a first duct 41, when the blower 20 is working, the first air outlet 43 provided on the first duct 41 can be used to concentrate and guide the airflow to a target area, such as the middle of the crop canopy or the root area. In this way, the first duct 41 can be used to quickly change the microclimate of local hot spots or areas with high humidity.

[0040] If the air supply duct 40 includes a second duct 42, when the blower 20 is working, the second duct 42 is inflated and expanded, and the second air outlet 44 set on its duct wall can deliver the gas evenly, achieving low wind speed and large area uniform air supply, avoiding strong winds from blowing directly and damaging crops, while promoting uniform mixing of gas in the entire space and eliminating stagnant air masses.

[0041] It should be noted that the spacing between the first air outlets 43 and the spacing between the second air outlets 44 can be set according to the actual application scenario. They can be set in a uniform or non-uniform manner.

[0042] By using the air supply duct 40 and pressurizing it with the blower 20, airflow is delivered into the air supply duct 40. Compared to free-diffusion fan airflow, duct airflow effectively reduces energy loss and directional dissipation during transport, achieving long-distance, controllable airflow delivery. Combined with the first air outlet 43 and the second air outlet 44, an effective airflow organization is formed, stirring up the hot and cold air in the planting space, promoting uniform temperature and humidity distribution, and enhancing ventilation, thus achieving efficient airflow organization and long-distance airflow delivery.

[0043] In this embodiment, the output end of the blower 20 is provided with a first connector 60 or a second connector 70. Both the first connector 60 and the second connector 70 are set on the main frame 10. The output end of the blower 20 is connected to the first pipe 41 through the first connector 60, and the output end of the blower 20 is connected to the second pipe 42 through the second connector 70.

[0044] More specifically, the blower 20 is fixed to the main frame via the mounting base 21; the first connector 60 includes a first air inlet, a first pair of interfaces, and a first connector seat. The first connector seat is connected to the main frame 10. The first connector seat is provided with a first air inlet connected to the input end of the first pipe 41. The edge of the first air inlet is provided with a first pair of interfaces. One end of the first pair of interfaces is connected to the output end of the blower 20, and the other end of the first pair of interfaces is connected to the input end of the first pipe 41; the second connector 70 includes a second air inlet, a second pair of interfaces, and a second connector seat. The second connector seat is connected to the main frame 10. The second connector seat is provided with a second air inlet connected to the input end of the second pipe 42. The edge of the second air inlet is provided with a second pair of interfaces. One end of the second pair of interfaces is connected to the output end of the blower 20, and the other end of the second pair of interfaces is connected to the input end of the second pipe 42.

[0045] Similarly, one end of the first pair of interfaces is connected to the output end of the blower 20 through various fasteners, and the other end of the first pair of interfaces is also connected to the input end of the first pipe 41 through various fasteners. One end of the second pair of interfaces is connected to the output end of the blower 20 through various fasteners, and the other end of the second pair of interfaces is also connected to the input end of the second pipe 42 through various fasteners.

[0046] The airflow control device of this utility model: The air supply duct 40, consisting of at least one first pipe 41 and / or at least one second pipe 42, can precisely deliver regulated air to any point requiring adjustment in a high-density planting area, quickly balancing the temperature and humidity difference between that point and the surrounding environment. This solves the problems of coarse control and uneven distribution of traditional equipment, making it suitable for high-density planting environments. The air supply duct 40 effectively reduces air diffusion losses during transport, allowing the airflow generated by the blower 20 to reach greater distances. This is particularly suitable for large-space applications such as multi-span greenhouses and large plant factories. The controller within the control box 30 ensures stable air pressure and uniform airflow velocity from the blower 20, guaranteeing overall air quality. Consistency in climate regulation effect along the air supply path; with the main frame 10 as the basic skeleton, all other components can be installed on the main frame 10 through standard interfaces such as bolts, nuts, clips, and clamps. Single-channel, multi-channel, horizontal, or vertical air supply ducts 40 can be flexibly arranged and combined according to the actual shape and area of ​​the planting area, achieving extremely high assembly compatibility and spatial adaptability. In particular, this flexible installation method can limit the length of a single first duct 41 to a certain range, facilitating transportation and storage. Strong compatibility and expandability: the fully modular design allows the system to be assembled without professional tools. Users can easily adjust the direction, length, and air outlet method of the ducts according to changes in the planting layout, supporting functional expansion or reorganization as crops grow or planting patterns change, significantly improving space utilization and economy.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An airflow control device, characterized in that, include: Main framework; At least one blower is mounted on the main frame; A control box is mounted on the main frame, and a controller is installed inside the control box. The controller is electrically connected to all the blowers. At least one air supply duct is provided, which is equal in number to the number of air supply fans and corresponds to them one by one. One end of the air supply duct is connected to the output end of the corresponding air supply fan, and the other end of the air supply duct is sealed by a pipe plug. The air supply duct is composed of at least one first duct and / or at least one second duct, and the first duct and the second duct are respectively provided with a plurality of first air outlets and second air outlets. The plurality of first ducts are connected by a first extension connector, and the first duct and the second duct are connected by a second extension connector.

2. The airflow control device according to claim 1, characterized in that, The output end of the blower is provided with a first connector or a second connector, both of which are mounted on the main frame. The output end of the blower is connected to the first pipe through the first connector, and the output end of the blower is connected to the second pipe through the second connector.

3. The airflow control device according to claim 2, characterized in that, The blower is fixed to the main frame by a mounting bracket.

4. The airflow control device according to claim 2, characterized in that, The first connector includes a first air inlet, a first pair of interfaces, and a first connector base. The first connector base is connected to the main frame. The first connector base is provided with a first air inlet that is connected to the input end of the first pipe. The first air inlet is provided with a first pair of interfaces at its edge. One end of the first pair of interfaces is connected to the output end of the blower, and the other end of the first pair of interfaces is connected to the input end of the first pipe.

5. The airflow control device according to claim 2, characterized in that, The second connector includes a second air inlet, a second pair of interfaces, and a second connector base. The second connector base is connected to the main frame. The second connector base is provided with a second air inlet that is connected to the input end of the second pipe. A second pair of interfaces is provided at the edge of the second air inlet. One end of the second pair of interfaces is connected to the output end of the blower, and the other end of the second pair of interfaces is connected to the input end of the second pipe.

6. The airflow control device according to claim 1, characterized in that, The first pipe is equipped with reinforcing ribs.

7. The airflow control device according to claim 1, characterized in that, The first air outlet is configured as one or a combination of multiple shapes, such as circular, elliptical, slit, and louvered.

8. The airflow control device according to claim 7, characterized in that, The first air outlet is set at an angle.

9. The airflow control device according to claim 1, characterized in that, The first pipe is secured to the installation position by at least one hook.

10. The airflow control device according to claim 1, characterized in that, The control box is also equipped with a protective cover.