Flow guide shell, atomization device and unmanned aerial vehicle

Abstract

Embodiments of the present application provide a flow guide shell, an atomization device and a drone, and relate to the technical field of atomization. The flow guide shell comprises a shell and a first flow guide column. The shell has a bottom wall and a circumferential inner wall. The circumferential inner wall and the bottom wall are connected at the periphery. The circumferential inner wall and the bottom wall jointly define a flow guide chamber. The shell is provided with a liquid inlet penetrating through the circumferential inner wall and a liquid outlet penetrating through the bottom wall. The liquid inlet, the flow guide chamber and the liquid outlet are sequentially communicated. The first flow guide column is arranged on the circumferential inner wall and located in the flow guide chamber. The first flow guide column is adjacent to the liquid inlet. When the liquid enters the flow guide chamber from the liquid inlet, the first flow guide column adjacent to the liquid inlet will change the path of the liquid flow, thereby reducing the possibility of the liquid entering the flow guide shell forming a serious cyclone, and further reducing the influence on the atomization process of the atomization disc.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to a flow guide shell, an atomization device and a drone. BACKGROUND

[0002] In the process of spraying work on crops by a plant protection drone, the atomization device of the plant protection drone is one of the important components of the spraying work.

[0003] In the prior art, in the process of atomizing liquid by the atomization disc of the atomization device, the liquid needs to flow to the atomization disc through the liquid outlet of the flow guide shell, and the liquid is atomized under the rotation of the atomization disc. However, after the liquid enters the flow guide shell, a serious rotational flow may be formed in the flow guide shell, and the liquid cannot flow to the atomization disc in time, thereby affecting the atomization process. SUMMARY

[0004] The present application provides a flow guide shell, an atomization device and a drone, which can reduce the possibility of forming a serious rotational flow of liquid entering the flow guide shell and reduce the influence on the atomization process of the atomization disc.

[0005] Embodiments of the present application can be implemented as follows:

[0006] In a first aspect, the present application provides a flow guide shell, comprising:

[0007] a shell body having a bottom wall and a circumferential inner wall, the circumferential inner wall and the circumferential edge of the bottom wall being connected, the circumferential inner wall and the bottom wall together defining a flow guide chamber, the shell body being provided with a liquid inlet passing through the circumferential inner wall and a liquid outlet passing through the bottom wall, the liquid inlet, the flow guide chamber and the liquid outlet being sequentially communicated; and

[0008] a first flow guide column arranged on the circumferential inner wall and located in the flow guide chamber, the first flow guide column being adjacent to the liquid inlet.

[0009] In an optional embodiment, the liquid inlet is a strip-shaped port, and the first flow guide column is located at one end of the liquid inlet.

[0010] In an optional embodiment, the flow guide shell further comprises a second flow guide column arranged on the circumferential inner wall and located in the flow guide chamber, and the second flow guide column is adjacent to the liquid inlet.

[0011] In an optional embodiment, the first flow guide column and the second flow guide column are spaced apart.

[0012] In an optional embodiment, the liquid inlet is a strip-shaped port, the first flow guide column is located at one end of the liquid inlet, and the second flow guide column is located at the other end of the liquid inlet.

[0013] In an optional embodiment, the cross section of the first flow guide column and the cross section of the second flow guide column are both arc-shaped.

[0014] In an optional embodiment, the circumferential inner wall is a circular inner wall.

[0015] In an optional embodiment, the liquid outlet is a circular through hole, and the central axis of the circumferential inner wall and the central axis of the liquid outlet are collinear.

[0016] In a second aspect, the present application provides an atomization device, which comprises an atomization disc, a driving member, and the flow guide shell according to any one of the foregoing embodiments, the driving member and the atomization disc are connected, the driving member is used to drive the atomization disc to rotate, and the flow guide shell is installed on the driving member.

[0017] In a third aspect, the present application provides a UAV, which comprises a UAV body and the atomization device according to the foregoing embodiments, and the atomization device is installed on the UAV body.

[0018] The flow guide shell, the atomization device, and the UAV according to the embodiments of the present application have the following advantages, for example:

[0019] The present application provides a flow guide shell, which comprises a shell and a first flow guide column, the shell has a bottom wall and a circumferential inner wall, the circumferential inner wall and the peripheral edge of the bottom wall are connected, and the circumferential inner wall and the bottom wall jointly define a flow guide chamber, the shell is provided with a liquid inlet penetrating through the circumferential inner wall and a liquid outlet penetrating through the bottom wall, the liquid inlet, the flow guide chamber, and the liquid outlet are sequentially communicated, the first flow guide column is arranged on the circumferential inner wall and located in the flow guide chamber, and the first flow guide column adjacent to the liquid inlet can change the path of the liquid flow when the liquid enters the flow guide chamber from the liquid inlet, thereby reducing the possibility of the liquid entering the flow guide shell to form a severe rotational flow and further reducing the influence on the atomization process of the atomization disc.

[0020] The present application provides an atomization device, which comprises an atomization disc, a driving member, and the flow guide shell according to the foregoing embodiments, the driving member and the atomization disc are connected, the driving member is used to drive the atomization disc to rotate, and the flow guide shell is installed on the driving member, and the atomization device has all the functions of the flow guide shell.

[0021] The present application provides a UAV, which comprises a UAV body and the atomization device according to the foregoing embodiments, and the atomization device is installed on the UAV body, and the UAV has all the functions of the atomization device. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Figure 1 A cross-sectional view of the atomization device provided in the embodiments of the present application;

[0024] Figure 2 A schematic view of the flow guide shell provided in the embodiments of the present application;

[0025] Figure 3 A top view of the flow guide shell provided in the embodiments of the present application.

[0026] Figure legend: 100 - shell; 110 - bottom wall; 120 - circumferential inner wall; 101 - liquid inlet; 102 - flow guide chamber; 103 - liquid outlet; 200 - first flow guide column; 300 - second flow guide column; 400 - liquid inlet pipe; 10 - atomization disc; 20 - driving member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0029] It should be noted that: similar labels and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0033] In recent years, with the rapid development of multi-rotor aircraft technology (i.e. unmanned aerial vehicle technology), unmanned aerial vehicles have attracted attention in many fields due to their advantages such as flexibility, quick response, unmanned flight, and low operating requirements, especially in the field of agricultural plant protection, unmanned aerial vehicles are used to spray crops.

[0034] The plant protection unmanned aerial vehicle is a kind of unmanned aerial vehicle that can perform plant protection tasks (such as pest control, pesticide spraying, and fertilizer application).

[0035] As mentioned in the background, during the spraying process of the plant protection unmanned aerial vehicle on crops, the atomizing device of the plant protection unmanned aerial vehicle is one of the important components of the spraying process.

[0036] In the atomizing process of the atomizing disc of the prior art atomizing device, the liquid needs to flow to the atomizing disc through the liquid outlet of the flow guide shell. In the case of rotation of the atomizing disc, the liquid is atomized. However, after the liquid enters the flow guide shell, the liquid flow passes through the circular circumferential inner wall of the flow guide shell, causing a serious rotational flow of the liquid flow in the flow guide shell. The liquid cannot flow to the atomizing disc in time, affecting the atomizing process.

[0037] Therefore, with reference to Figures 1-3 , the flow guide shell, atomizing device and unmanned aerial vehicle provided in the embodiments of the present application can solve this problem, which will be described in detail below.

[0038] Please refer to Figure 1 , the present application provides an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body and an atomizing device. The atomizing device is installed on the unmanned aerial vehicle body. In this embodiment, the unmanned aerial vehicle can be a plant protection unmanned aerial vehicle.

[0039] Moreover, the unmanned aerial vehicle can be a dual-rotor unmanned aerial vehicle, or a single-rotor unmanned aerial vehicle or a multi-rotor unmanned aerial vehicle, such as a four-rotor unmanned aerial vehicle, a six-rotor unmanned aerial vehicle, an eight-rotor unmanned aerial vehicle, etc.

[0040] The unmanned aerial vehicle can automatically run according to a preset path, flight speed, attitude, etc., or be manually controlled by an operator.

[0041] The liquid sprayed by the atomizing device can be water, pesticide, etc.

[0042] The atomizing device comprises an atomizing disc 10, a driving member 20, and a flow guide shell. The driving member 20 is connected with the atomizing disc 10 and is used to drive the atomizing disc 10 to rotate. The flow guide shell is installed on the driving member 20. The driving member 20 can be assembled on the body of the unmanned aerial vehicle. In this embodiment, the driving member 20 can be an electric motor.

[0043] Specifically, the rotating output end of the driving member 20 is connected with the center of the atomizing disc 10 after penetrating through the flow guide shell. The atomizing disc 10 has atomizing teeth. During the rotation of the atomizing disc 10 driven by the driving member 20, the liquid passing through the flow guide shell will enter the atomizing disc 10 below. The atomizing disc 10 will make the liquid impact on the atomizing teeth to complete the atomization process of the liquid.

[0044] Please refer to Figure 2 The flow guide shell comprises a shell body 100 and a first flow guide column 200. The shell body 100 has a bottom wall 110 and a circumferential inner wall 120. The circumferential inner wall 120 is connected with the circumferential edge of the bottom wall 110. The circumferential inner wall 120 and the bottom wall 110 jointly define a flow guide chamber 102.

[0045] The shell body 100 is provided with a liquid inlet 101 penetrating through the circumferential inner wall 120 and a liquid outlet 103 penetrating through the bottom wall 110. The liquid inlet 101, the flow guide chamber 102, and the liquid outlet 103 are sequentially communicated. The first flow guide column 200 is arranged on the circumferential inner wall 120 and located in the flow guide chamber 102. The first flow guide column 200 is adjacent to the liquid inlet 101.

[0046] As shown in Figure 3 When the liquid enters the flow guide chamber 102 from the liquid inlet 101, the first flow guide column 200 adjacent to the liquid inlet 101 will change the path of the liquid flow, reducing the possibility of the liquid entering the flow guide shell to form a severe rotational flow, thereby reducing the influence on the atomization process of the atomizing disc 10.

[0047] It is easy to understand that since the first flow guide column 200 is arranged on the edge of the liquid inlet 101, the liquid entering from the liquid inlet 101 will not directly flow to the circumferential inner wall 120 of the shell body 100, reducing the possibility of the liquid passing through the circumferential inner wall 120 to form a severe rotational flow and being unable to timely enter the atomizing disc 10 below through the liquid outlet 103.

[0048] The circumferential inner wall 120 is a circular inner wall, the liquid outlet 103 is a circular through hole, and the central axis of the circumferential inner wall 120 and the central axis of the liquid outlet 103 are collinear, that is, the liquid outlet 103 is arranged at the center position of the bottom wall 110.

[0049] Specifically, in the embodiment, the liquid inlet 101 is a strip-shaped port, and the first flow guide column 200 is located at one end of the liquid inlet 101.

[0050] At the same time, in order to further reduce the possibility that the liquid entering the flow guide shell forms a serious rotational flow, the flow guide shell further comprises a second flow guide column 300, which is arranged on the circumferential inner wall 120 of the shell 100 and located in the flow guide chamber 102.

[0051] The second flow guide column 300 is adjacent to the liquid inlet 101, and the first flow guide column 200 and the second flow guide column 300 are spaced apart.

[0052] Specifically, the first flow guide column 200 is located at one end of the liquid inlet 101, and the second flow guide column 300 is located at the other end of the liquid inlet 101. In addition, in the embodiment, the structure of the first flow guide column 200 and the structure of the second flow guide column 300 are the same, and the first flow guide column 200 and the second flow guide column 300 are both arc-shaped plate structures, that is, the cross section of the first flow guide column 200 and the cross section of the second flow guide column 300 are both arc-shaped.

[0053] The arc-shaped outer wall of the first flow guide column 200 and the circumferential inner wall 120 of the shell 100 are smoothly connected, and the arc-shaped outer wall of the second flow guide column 300 and the circumferential inner wall 120 of the shell 100 are smoothly connected, and the first flow guide column 200 and the second flow guide column 300 are symmetrically distributed at both ends of the liquid inlet 101 with respect to the central axis of the liquid outlet 103.

[0054] Of course, in other embodiments, the structure of the first flow guide column 200 and the structure of the second flow guide column 300 can also be both cylindrical structures to guide the flow of the liquid. In the case where the structure of the first flow guide column 200 and the structure of the second flow guide column 300 are both cylindrical structures, the central axis of the first flow guide column 200 and the central axis of the second flow guide column 300 are parallel, and the central axis of the first flow guide column 200 and the central axis of the liquid outlet 103 are parallel.

[0055] In addition, it should be noted that in order to facilitate the liquid inlet of the flow guide shell, the flow guide shell further comprises a liquid inlet pipe 400, which is located on the outside of the shell 100 and communicates with the liquid inlet 101 of the shell 100.

[0056] According to the unmanned aerial vehicle provided in the embodiment, the working principle of the unmanned aerial vehicle is as follows:

[0057] In the working process of the unmanned aerial vehicle, the atomization device of the unmanned aerial vehicle atomizes liquid, that is, the atomization disc 10 is driven to rotate by the driving member 20, and at the same time, the external liquid enters the flow guide cavity 102 through the liquid inlet 101 of the flow guide shell through the liquid inlet pipe 400.

[0058] Please refer to Figure 3 When the liquid enters the flow guide cavity 102 from the liquid inlet 101, the first flow guide column 200 and the second flow guide column 300 adjacent to the liquid inlet 101 change the path of the liquid flow. Specifically, the first flow guide column 200 and the second flow guide column 300 can make the liquid flow not directly contact the arc-shaped inner wall on both sides of the shell 100, but contact the arc-shaped inner wall away from the liquid inlet 101. Then the liquid flow enters the liquid outlet 103 and flows out from the liquid outlet 103 to the surface of the atomization disc 10.

[0059] The possibility of the liquid entering the flow guide shell forming a severe rotational flow is reduced, and the liquid can flow onto the atomization disc 10 in time, thereby reducing the influence on the atomization process of the atomization disc 10.

[0060] In summary, the flow guide shell includes the shell 100 and the first flow guide column 200. The shell 100 has a bottom wall 110 and a circumferential inner wall 120. The circumferential inner wall 120 and the bottom wall 110 are connected at the periphery. The circumferential inner wall 120 and the bottom wall 110 together define a flow guide cavity 102. The shell 100 is provided with a liquid inlet 101 penetrating the circumferential inner wall 120 and a liquid outlet 103 penetrating the bottom wall 110. The liquid inlet 101, the flow guide cavity 102 and the liquid outlet 103 are sequentially communicated. The first flow guide column 200 is arranged on the circumferential inner wall 120 and located in the flow guide cavity 102. The first flow guide column 200 is adjacent to the liquid inlet 101.

[0061] When the liquid enters the flow guide cavity 102 from the liquid inlet 101, the first flow guide column 200 adjacent to the liquid inlet 101 changes the path of the liquid flow. The possibility of the liquid entering the flow guide shell forming a severe rotational flow is reduced, thereby reducing the influence on the atomization process of the atomization disc 10.

[0062] In order to further reduce the possibility of the liquid entering the flow guide shell forming a severe rotational flow, the flow guide shell further includes a second flow guide column 300. The second flow guide column 300 is arranged on the circumferential inner wall 120 of the shell 100. The second flow guide column 300 is also adjacent to the liquid inlet 101. At the same time, the first flow guide column 200 is located at one end of the liquid inlet 101, and the second flow guide column 300 is located at the other end of the liquid inlet 101. The first flow guide column 200 and the second flow guide column 300 are both arc-shaped plate structures to facilitate flow guide.

[0063] The arc-shaped outer wall of the first flow guide column 200 and the circumferential inner wall 120 of the shell 100 are smoothly connected, and the arc-shaped outer wall of the second flow guide column 300 and the circumferential inner wall 120 of the shell 100 are smoothly connected, and the first flow guide column 200 and the second flow guide column are symmetrically distributed on both ends of the liquid inlet 101 about the center axis of the liquid outlet 103.

[0064] The atomizing device comprises an atomizing disc 10, a driving member 20, and the aforementioned flow guide shell, the driving member 20 is connected with the atomizing disc 10, the driving member 20 is used for driving the atomizing disc 10 to rotate, and the flow guide shell is installed on the driving member 20, and the atomizing device has all the functions of the aforementioned flow guide shell.

[0065] The unmanned aerial vehicle comprises an unmanned aerial vehicle body and the aforementioned atomizing device, the atomizing device is installed on the unmanned aerial vehicle body, and the unmanned aerial vehicle has all the functions of the aforementioned atomizing device.

[0066] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flow guiding shell of an atomizing device, characterized in that The shell (100) has a bottom wall (110) and a circumferential inner wall (120) connected with the periphery of the bottom wall (110), and the bottom wall (110) and the circumferential inner wall (120) together define a flow guide chamber (102), the shell (100) is provided with a liquid inlet (101) penetrating through the circumferential inner wall (120) and a liquid outlet (103) penetrating through the bottom wall (110), and the liquid inlet (101), the flow guide chamber (102) and the liquid outlet (103) are sequentially communicated; and The first flow guide column (200) is arranged on the circumferential inner wall (120) and located in the flow guide chamber (102), and is adjacent to the liquid inlet (101) and used for guiding the change of the path of the liquid flow entering the flow guide chamber (102) from the liquid inlet (101). The liquid inlet (101) is a strip-shaped port, and the first flow guide column (200) is located at one end of the liquid inlet (101).

2. The flow guiding shell of an atomizing device according to claim 1, characterized in that The flow guide shell further comprises a second flow guide column (300) arranged on the circumferential inner wall (120) and located in the flow guide chamber (102), and the second flow guide column (300) is adjacent to the liquid inlet (101).

3. The flow guiding shell of an atomizing device according to claim 1, characterized in that The first flow guide column (200) and the second flow guide column (300) are distributed at intervals.

4. The flow guiding shell of an atomizing device according to claim 3, characterized in that The liquid inlet (101) is a strip-shaped port, the first flow guide column (200) is located at one end of the liquid inlet (101), and the second flow guide column (300) is located at the other end of the liquid inlet (101).

5. The flow guiding shell of an atomizing device according to claim 3, characterized in that The cross section of the first flow guide column (200) and the cross section of the second flow guide column (300) are both arc-shaped.

6. The flow guiding shell of an atomizing device according to claim 3, characterized in that The circumferential inner wall (120) is a circular inner wall.

7. The flow guiding shell of an atomizing device according to claim 1, characterized in that The liquid outlet (103) is a circular through hole, and the central axis of the circumferential inner wall (120) and the central axis of the liquid outlet (103) are collinear.

8. The flow guiding shell of an atomizing device according to claim 7, characterized in that The flow guide shell of the atomization device of any one of claims 1-8, the atomization device comprising an atomization disc (10) and a driving member (20), the driving member (20) and the atomization disc (10) being connected, the driving member (20) being used for driving the atomization disc (10) to rotate, and the flow guide shell being mounted on the driving member (20).

9. An atomising device characterised in that, The atomization device of claim 9, the atomization device being mounted on the unmanned aerial vehicle body.

10. A drone, characterized in that, ​

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