Unmanned aerial vehicle arm assembly and unmanned aerial vehicle

Abstract

The embodiment of the utility model provides an unmanned aerial vehicle arm assembly and an unmanned aerial vehicle, and relates to the field of aircrafts. The unmanned aerial vehicle arm assembly comprises an arm tube, an electronic speed controller, an electronic speed controller power line and an electronic speed controller signal line. The electronic speed controller is installed on the outer side of the arm tube, a first wire outlet hole is formed in the side wall of the arm tube, and an electronic speed controller power line is used for extending in the direction from the near end to the far end of the arm tube and penetrating out of the first wire outlet hole to be rewound to the position where the electronic speed controller is located so as to be connected to the electronic speed controller; a second wire outlet hole is formed in the far end of the arm tube, and the electronic speed controller signal wire is used for extending in the direction from the near end to the far end of the arm tube and penetrating out of the second wire outlet hole to be connected to the electronic speed controller. In the working process, an electronic speed controller signal wire can penetrate through the first wire outlet hole to extend out of the end of the arm pipe to be connected with an electronic speed controller, then it is avoided that a large-size hole is formed in the side wall of the arm pipe, and the negative effect on the strength of the arm pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the field of aircraft, and in particular to an unmanned aerial vehicle (UAV) arm assembly and an unmanned aerial vehicle (UAV). Background Art

[0002] In the wiring harness layout process of drones, a first wiring hole is usually opened on the side wall of the arm tube, so that the ESC power line and the ESC signal line pass through the hole to connect with the ESC. However, the plug of the ESC signal line is large, which will make the opening size of the first wiring hole larger, which will have a negative impact on the strength of the arm tube itself. Utility Model Content

[0003] The utility model provides a drone arm assembly and a drone, which can avoid opening a large-sized first wire outlet hole on the side wall of the arm tube, thereby preventing a negative impact on the self-strength of the arm tube; at the same time, the electric control power line continues to pass through the small-sized first wire outlet hole, so as to avoid increasing the layout length of the electric control power line.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] An embodiment of the utility model provides a drone arm assembly, which includes:

[0006] Arm tube, ESC, ESC power cable and ESC signal cable;

[0007] The ESC is installed on the outside of the arm tube, a first wire outlet hole is provided on the side wall of the arm tube, and the ESC power line is used to extend from the proximal end to the distal end of the arm tube and pass through the first wire outlet hole to be connected to the ESC;

[0008] A second wire outlet hole is opened at the distal end of the arm tube, and the electric adjustment signal line is used to extend along the direction from the proximal end to the distal end of the arm tube, and pass through the second wire outlet hole and go back to the position of the electric adjustment to be connected to the electric adjustment.

[0009] Optionally, the drone arm assembly also includes an electric adjustment fixing seat, which is mounted on the outside of the arm tube, the electric adjuster is connected to the electric adjustment fixing seat, and the electric adjustment fixing seat is provided with a first wiring hole, and the first wiring hole is used to accommodate the electric adjustment signal line.

[0010] Optionally, the first wiring hole is located on a side of the ESC fixing base close to the ESC.

[0011] Optionally, a first arc groove is formed in the first wiring hole, and the first arc groove is used to accommodate the electrical adjustment signal line.

[0012] Optionally, the drone arm assembly further includes a motor fixing base, which is arranged on the outer side of the arm tube and is closer to the distal end of the arm tube relative to the ESC. The motor fixing base is provided with a second wire routing hole for accommodating the ESC signal wire.

[0013] Optionally, the size of the second wire routing hole is adapted to the size of the plug of the ESC signal wire.

[0014] Optionally, the motor fixing base includes a motor connection seat and an arm connection seat. The motor connection seat is connected to the upper side of the arm connection seat. The arm connection seat is used to connect the arm tube, and the second wire routing hole is opened at one end of the motor connection seat close to the arm connection seat.

[0015] Optionally, the motor fixing base is provided with a fixing hole, the arm tube is accommodated in the fixing hole, and the second wire routing hole is arranged at an interval from the fixing hole.

[0016] Optionally, the motor fixing base includes a seat body and an insert. The strength of the insert is greater than that of the seat body. Both the fixing hole and the second wire routing hole are opened in the seat body, and the insert is arranged inside the fixing hole.

[0017] Optionally, the size of the first wire outlet hole is adapted to the size of the connection end of the ESC power line, and the connection end of the ESC power line is a cold pressing terminal.

[0018] Optionally, the drone arm assembly further includes a nozzle and a nozzle signal wire. The nozzle is connected to the arm tube, and the nozzle signal wire is connected between the nozzle and the ESC and is located on the outer side of the arm tube.

[0019] Optionally, a wire bundling part is arranged at the distal end of the arm tube, and the wire bundling part is used for sleeving a fastening belt to fix the ESC signal wire.

[0020] Optionally, the wire bundling part protrudes from the arm tube along the axial direction of the arm tube.

[0021] Optionally, a second arc groove is formed on the wire bundling part for accommodating the ESC signal wire.

[0022] Optionally, fastening grooves are respectively formed on both sides of the wire bundling part. The opening directions of the two fastening grooves are opposite, and the two fastening grooves are used for sleeving the fastening belt.

[0023] An embodiment of the present utility model further provides a drone, which includes a fuselage and the drone arm assembly as described above, and the proximal end of the arm tube is connected to the fuselage.

[0024] The beneficial effects of the drone arm assembly and the drone of the embodiment of the utility model include, for example:

[0025] The drone arm assembly includes an arm tube, an electric speed controller, an electric speed controller power line, and an electric speed controller signal line; wherein the electric speed controller is installed on the outside of the arm tube, and a first outlet hole is provided on the side wall of the arm tube, and the electric speed controller power line is used to extend from the proximal end to the distal end of the arm tube, and pass through the first outlet hole to connect to the electric speed controller; a second outlet hole is provided on the distal end of the arm tube, and the electric speed controller signal line is used to extend from the proximal end to the distal end of the arm tube, and pass through the second outlet hole and go back to the electric speed controller position to connect to the electric speed controller. In the working state, the electric speed controller signal line can pass through the first outlet hole and extend from the end of the arm tube to connect with the electric speed controller, thereby avoiding the opening of a large-sized hole on the side wall of the arm tube, and reducing the negative impact on the self-strength of the arm tube. At the same time, the electric speed controller power line continues to pass through the small-sized first outlet hole, and the layout length of the electric speed controller power line can be avoided from increasing without affecting the strength of the arm tube.

[0026] The drone includes a drone arm assembly, which has all the functions of the drone arm assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the drone arm assembly provided in an embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of the structure of the electric adjustment fixing base provided in the embodiment of the utility model;

[0030] Figure 3 It is a structural schematic diagram of the machine arm tube provided in an embodiment of the utility model;

[0031] Figure 4 It is a schematic structural diagram of a motor fixing seat provided in an embodiment of the utility model.

[0032] Icons: 100 - Drone arm assembly; 110 - Arm tube; 111 - First wire outlet hole; 112 - Second wire outlet hole; 113 - Wire bundling part; 1131 - Second arc groove; 1132 - Fastening groove; 120 - ESC; 130 - ESC power cord; 135 - ESC signal wire; 140 - ESC fixing seat; 141 - First wire routing hole; 142 - First arc groove; 150 - Motor fixing seat; 1501 - Motor connection seat; 1502 - Arm connection seat; 151 - Second wire routing hole; 152 - Fixing hole; 155 - Seat body; 156 - Insert; 160 - Sprayer; 170 - Sprayer signal wire. Detailed implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0037] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

[0039] Unless otherwise expressly stipulated and defined, terms such as "arranged" and "connected" shall be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0040] It should be noted that, without conflict, the features in the embodiments of the present utility model may be combined with each other.

[0041] Please refer to Figure 1 , the drone arm assembly 100 and the drone provided in the embodiments of the present utility model can solve the above problems, and will be described in detail hereinafter.

[0042] The drone arm assembly 100 is applied to a drone and includes an arm tube 110, an ESC 120, an ESC power line 130, and an ESC signal line 135;

[0043] Wherein, the ESC 120 is installed on the outer side of the arm tube 110, and a first wire outlet hole 111 is formed in the side wall of the arm tube 110. The ESC power line 130 is used to extend along the direction from the proximal end to the distal end of the arm tube 110 and pass through the first wire outlet hole 111 to be connected to the ESC 120;

[0044] A second wire outlet hole 112 is formed in the distal end of the arm tube 110. The ESC signal line 135 is used to extend along the direction from the proximal end to the distal end of the arm tube 110 and pass through the second wire outlet hole 112 and then wind back to the position of the ESC 120 to be connected to the ESC 120.

[0045] In the working state, the electronic speed control signal line 135 can pass through the first wire outlet hole 111 and extend from the end of the arm tube 110 to be connected to the electronic speed control 120, thereby avoiding opening a large-sized hole on the side wall of the arm tube 110 and reducing the negative impact on the self-strength of the arm tube 110. At the same time, the electronic speed control power line 130 continues to pass through the small-sized first wire outlet hole 111, which can avoid increasing the layout length of the electronic speed control power line 130 without affecting the strength of the arm tube 110.

[0046] It should be noted that the proximal end of the arm tube 110 refers to the end connected to the fuselage, and the distal end refers to the end far from the fuselage. Compared with making the electronic speed control power line 130 and the electronic speed control signal line 135 pass through the first wire outlet hole 111 at the same time, when only the electronic speed control power line 130 passes through the first wire outlet hole 111, because the electronic speed control power line 130 is relatively thinner, the opening size of the first wire outlet hole 111 can be greatly reduced, thereby avoiding the negative impact on the structural strength of the arm tube 110 due to the too large opening of the first wire outlet hole 111. At the same time, because the opening of the first wire outlet hole 111 becomes smaller, the requirement for the self-strength of the arm tube 110 is also lower, and thus the material cost can be reduced to a certain extent.

[0047] Specifically, the size of the first wire outlet hole 111 is adapted to the size of the connection end of the electronic speed control power line 130, and the connection end of the electronic speed control power line 130 is a cold-pressed terminal. In this embodiment, the connection end of the electronic speed control power line 130 is specifically an OT terminal, so its size is small and will not make the opening of the first wire outlet hole 111 too large, thereby avoiding the negative impact on the self-strength of the arm tube 110.

[0048] Reference Figure 1 and Figure 2 As shown in [relevant figure numbers] and [relevant figure numbers], the drone arm assembly 100 further includes an electronic speed control fixing seat 140. The electronic speed control fixing seat 140 is arranged on the outside of the arm tube 110. The electronic speed control 120 is connected to the electronic speed control fixing seat 140, and the electronic speed control fixing seat 140 is provided with a first wire routing hole 141 for accommodating the electronic speed control signal line 135.

[0049] In the installed state, the electronic speed control 120 is connected to the outside of the arm tube 110 through the electronic speed control fixing seat 140. By opening the first wire routing hole 141, the stability of the end of the electronic speed control signal line 135 connected to the electronic speed control 120 is better, and the electronic speed control signal line 135 is prevented from easily detaching from the electronic speed control 120.

[0050] Moreover, the first wire routing hole 141 can be located on the side of the electronic speed control fixing seat 140 close to the electronic speed control 120, so as to accommodate the position of the end of the electronic speed control signal line 135 close to the electronic speed control 120, ensuring the relative position stability of the electronic speed control signal line 135 and the electronic speed control 120.

[0051] ReferenceFigure 2 , in order to avoid excessive gaps between the electronic speed control signal line 135 and the side wall of the first wire through hole 141, a first arc groove 142 can be formed in the first wire through hole 141. The first arc groove 142 is used to accommodate the electronic speed control signal line 135, thereby improving the accommodation effect on the electronic speed control signal line 135.

[0052] It should be noted that the number of the first arc grooves 142 in this embodiment is two. The other first arc groove 142 is used to accommodate the nozzle signal line 170, and can also ensure the relative position stability between the nozzle signal line 170 and the electronic speed control 120.

[0053] Reference Figure 1 and Figure 4 , the drone arm assembly 100 further includes a motor fixing seat 150. The motor fixing seat 150 is sleeved on the outer side of the arm tube 110 and is closer to the distal end of the arm tube 110 relative to the electronic speed control 120. The motor fixing seat 150 is provided with a second wire through hole 151, and the second wire through hole 151 is used to accommodate the electronic speed control signal line 135. Moreover, the size of the second wire through hole 151 is adapted to the plug size of the electronic speed control signal line 135.

[0054] In the working state, the motor fixing seat 150 is used to fix the motor. Usually, there is a certain distance between the electronic speed control fixing seat 140 and the second wire outlet hole 112. In order to make the part of the electronic speed control signal line 135 between the electronic speed control fixing seat 140 and the second wire outlet hole 112 more stable, the electronic speed control signal line 135 can be made to pass through the second wire through hole 151.

[0055] Moreover, since the motor fixing seat 150 is provided with a fixing hole 152 and the arm tube 110 is accommodated in the fixing hole 152; in order to avoid the influence of the opening of the second wire through hole 151 on the sleeved connection with the arm tube 110, the second wire through hole 151 and the fixing hole 152 can be arranged at intervals.

[0056] Specifically, the motor fixing seat 150 can be made to include a motor connection seat 1501 and an arm connection seat 1502. The motor connection seat 1501 is connected to the upper side of the arm connection seat 1502. The arm connection seat 1502 is used to connect the arm tube 110. The second wire through hole 151 is opened at one end of the motor connection seat 1501 close to the arm connection seat 1502. The fixing hole 152 is opened in the arm connection seat 1502 and is used to be sleeved on the arm tube 110.

[0057] Reference Figure 4, From the perspective of improving the connection strength between the motor fixing base 150 and the arm tube 110, the motor fixing base 150 can include a base body 155 and an insert 156. The strength of the insert 156 is greater than that of the base body 155. The fixing hole 152 and the second wire routing hole 151 are both opened in the base body 155, and the insert 156 is arranged inside the fixing hole 152. Among them, the base body 155 includes a motor connection base 1501 and an arm connection base 1502.

[0058] That is, the base body 155 and the insert 156 are of a split structure, and the two can be detachably connected. Even if the insert 156 is damaged, it is not necessary to replace the base body 155 synchronously. Only the insert 156 needs to be replaced, thereby reducing the maintenance cost.

[0059] Reference Figure 1 , The drone arm assembly 100 further includes a nozzle 160 and a nozzle signal wire 170. The nozzle 160 is connected to the arm tube 110, and the nozzle signal wire 170 is connected between the nozzle 160 and the ESC 120 and is located outside the arm tube 110.

[0060] During assembly, by making the nozzle signal wire 170 located outside the arm tube 110 and not passing through the first wire outlet hole 111, the opening size of the first wire outlet hole 111 can be further reduced.

[0061] It should be noted that, in order to improve the position stability of the nozzle signal wire 170, the nozzle signal wire 170 can also pass through the first wire routing hole 141 (the first arc groove 142) and the second wire routing hole 151, thereby improving the relative position stability between the nozzle signal wire 170 and the arm tube 110.

[0062] Reference Figure 1 And Figure 3 , In order to make the wire harness more stable when passing through the end of the arm tube 110, a wire bundling part 113 can be provided at the distal end of the arm tube 110. The wire bundling part 113 is used to sleeved with a fastening band to fix the ESC signal wire 135. Of course, the wire bundling part 113 can also sleeve the fastening band to fix the nozzle signal wire 170 at the same time.

[0063] Moreover, the wire bundling part 113 can protrude from the arm tube 110 along the axial direction of the arm tube 110, thereby improving the operation convenience of the staff. When using the fastening band to fix the wire harness, it will not be limited by the size of the arm tube 110.

[0064] It should be noted that the wire bundling part 113 can be integrally formed with the arm tube 110 or detachably connected to the arm tube 110. The specific forming method of the two is not limited.

[0065] Specifically, a second arc groove 1131 is formed on the wire bundling part 113. The second arc groove 1131 is used to accommodate the electronically adjustable signal wire 135 and the nozzle signal wire 170. The opening direction of the second arc groove 1131 is consistent with the extension direction of the proximal end to the distal end of the arm tube 110, which facilitates the bending and turning of the electronically adjustable signal wire 135 and the nozzle signal wire 170 at the distal end of the arm tube 110.

[0066] Specifically, in order to facilitate the sleeving of the fastening belt, fastening grooves 1132 can be formed on both sides of the wire bundling part 113, and the opening directions of the two fastening grooves 1132 are opposite.

[0067] An embodiment of the present invention also provides a drone, which includes a fuselage and a drone arm assembly 100. The number of arm tubes 110 is at least two, and the proximal ends of at least two arm tubes 110 are all connected to the fuselage. This drone includes a drone arm assembly 100, which has all the functions of the drone arm assembly 100.

[0068] This drone is usually used for plant protection operations. For example, generally, a spraying device, a sowing device, etc. required in agriculture are carried on the fuselage, and spraying irrigation, sowing, etc. can be realized. Moreover, this drone can operate automatically according to a preset path, flight speed, attitude, etc. Of course, this drone can also be used in other fields such as spraying fire extinguishing liquid in forest fires, aerial photography, power line inspection, environmental monitoring, forest fire prevention, and disaster inspection. In other embodiments, when the design meets the requirements, a driver can also be carried, so relevant operations can be manually operated by the driver in the cab.

[0069] In summary, the embodiments of the present invention at least have the following advantages:

[0070] (1) By passing the electronically adjustable signal wire 135 through the first wire outlet hole 111 and extending it from the end of the arm tube 110 to connect with the electronic speed controller 120, it is possible to avoid opening large-sized holes on the side wall of the arm tube 110, reducing the negative impact on the self-strength of the arm tube 110; at the same time, enabling the electronically adjustable power wire 130 to continue passing through the small-sized first wire outlet hole 111 can avoid increasing the layout length of the electronically adjustable power wire 130 without affecting the strength of the arm tube 110.

[0071] (2) By respectively opening a first wire routing hole 141 and a second wire routing hole 151 on the electronic speed controller fixing seat 140 and the motor fixing seat 150, they can be used to accommodate the electronically adjustable signal wire 135 and the nozzle signal wire 170, making the positions of the two signal wires more stable relative to the arm tube 110.

[0072] (3) By providing an insert 156 with greater strength and installing the insert 156 inside the fixing hole 152, it helps to increase the connection strength between the motor fixing base 150 and the arm tube 110, and further improves the relative position stability between the motor fixing base 150 and the arm tube 110.

[0073] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claimed rights.

Claims

1. An unmanned aerial vehicle arm assembly, characterized in that, Comprising: An arm tube (110), an electronic speed controller (120), an electronic speed controller power cord (130), and an electronic speed controller signal line (135); Wherein, the electronic speed controller (120) is installed on the outer side of the arm tube (110), a first wire outlet hole (111) is formed on the side wall of the arm tube (110), and the electronic speed controller power cord (130) is used to extend along the direction from the proximal end to the distal end of the arm tube (110) and pass through the first wire outlet hole (111) to be connected to the electronic speed controller (120); A second wire outlet hole (112) is formed at the distal end of the arm tube (110), and the electronic speed controller signal line (135) is used to extend along the direction from the proximal end to the distal end of the arm tube (110) and pass through the second wire outlet hole (112) and wind back to the position where the electronic speed controller (120) is located to be connected to the electronic speed controller (120).

2. The drone arm assembly according to claim 1, characterized in that, The drone arm assembly further includes an electronic speed controller fixing seat (140), the electronic speed controller fixing seat (140) is arranged on the outer side of the arm tube (110), the electronic speed controller (120) is connected to the electronic speed controller fixing seat (140), a first wire routing hole (141) is formed in the electronic speed controller fixing seat (140), and the first wire routing hole (141) is used to accommodate the electronic speed controller signal line (135).

3. The drone arm assembly according to claim 2, wherein, The first wire routing hole (141) is located on the side of the electronic speed controller fixing seat (140) close to the electronic speed controller (120).

4. The drone arm assembly according to claim 2, characterized in that, A first arc groove (142) is formed in the first wire routing hole (141), and the first arc groove (142) is used to accommodate the electronic speed controller signal line (135).

5. The drone arm assembly according to any one of claims 1-4, characterized in that, The drone arm assembly further includes a motor fixing seat (150), the motor fixing seat (150) is arranged on the outer side of the arm tube (110) and is closer to the distal end of the arm tube (110) than the electronic speed controller (120), a second wire routing hole (151) is formed in the motor fixing seat (150), and the second wire routing hole (151) is used to accommodate the electronic speed controller signal line (135).

6. The drone arm assembly according to claim 5, characterized in that, The size of the second wire routing hole (151) is adapted to the plug size of the electronic speed controller signal line (135).

7. The drone arm assembly according to claim 5, characterized in that, The motor fixing seat (150) includes a motor connection seat (1501) and an arm connection seat (1502), the motor connection seat (1501) is connected to the upper side of the arm connection seat (1502), the arm connection seat (1502) is used to connect the arm tube (110), and the second wire routing hole (151) is formed at one end of the motor connection seat (1501) close to the arm connection seat (1502).

8. The drone arm assembly according to claim 5, wherein, The motor fixing seat (150) is provided with a fixing hole (152), the arm tube (110) is accommodated in the fixing hole (152), and the second wire routing hole (151) is spaced from the fixing hole (152).

9. The drone arm assembly according to claim 8, wherein, The motor fixing base (150) includes a base body (155) and an insert (156). The strength of the insert (156) is greater than that of the base body (155). The fixing hole (152) and the second wire routing hole (151) are both formed in the base body (155), and the insert (156) is disposed inside the fixing hole (152).

10. The drone arm assembly according to any one of claims 1-4, characterized in that, The size of the first wire outlet hole (111) is adapted to the size of the connection end of the ESC power cord (130), and the connection end of the ESC power cord (130) is a cold-pressed terminal.

11. The drone arm assembly according to any one of claims 1-4, characterized in that, The drone arm assembly further includes a nozzle (160) and a nozzle signal wire (170). The nozzle (160) is connected to the arm tube (110), and the nozzle signal wire (170) is connected between the nozzle (160) and the ESC (120) and is located outside the arm tube (110).

12. The drone arm assembly according to any one of claims 1-4, characterized in that, A wire bundling portion (113) is provided at the distal end of the arm tube (110), and the wire bundling portion (113) is used for sleeving a fastening band to fix the ESC signal wire (135).

13. The drone arm assembly according to claim 12, wherein, The wire bundling portion (113) protrudes from the arm tube (110) along the axial direction of the arm tube (110).

14. The drone arm assembly according to claim 12, characterized in that, A second arc groove (1131) is formed on the wire bundling portion (113), and the second arc groove (1131) is used for accommodating the ESC signal wire (135).

15. The drone arm assembly according to claim 12, characterized in that, Fastening grooves (1132) are respectively formed on both sides of the wire bundling portion (113). The opening directions of the two fastening grooves (1132) are opposite, and the two fastening grooves (1132) are used for sleeving the fastening band.

16. A drone, characterized in that, It includes a fuselage and the drone arm assembly according to any one of claims 1-15, and the proximal end of the arm tube (110) is connected to the fuselage.

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