Unmanned aerial vehicle electronic speed controller driving structure

Abstract

The utility model relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle electronic speed controller driving structure which comprises a flow guide pipe, connecting rods distributed at equal intervals are welded to the inner walls of the two ends of the flow guide pipe, mounting pipes are welded to the other ends of the connecting rods, brushless motors are mounted on the inner walls of the mounting pipes, and fan blades are mounted on output shafts of the brushless motors. A mounting block is mounted on the outer wall of one side of the flow guide pipe, a mounting rod is arranged at one end of the mounting block, and an adjusting assembly is arranged between the mounting rod and the mounting block; the adjusting assembly comprises a connecting groove formed in the center of one end of the mounting block. According to the utility model, heat generated during the operation of the brushless motor is fully guided to the heat dissipation fins, and the heat is dissipated after air flow passes through, so that the heat dissipation efficiency is improved, the flight is conveniently driven, and the operation stability is conveniently improved; after the adjusting motor is started, the adjusting shaft drives the mounting block machine flow guide pipe to rotate on the mounting rod to adjust a certain angle, the angle of the fan blades is convenient to adjust, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to an electronic speed control (ESC) drive structure for UAVs. Background Technology

[0002] Fixed-wing and multi-rotor drones are generally powered by brushless motors. The motor's drive control is accomplished by a separate control circuit and control program. The control program is input into a chip, which is soldered onto a circuit board, which is the ESC driver.

[0003] Currently, the heat dissipation of the ESC driver is located in the fuselage of the drone. The motor that drives the propellers relies on airflow during flight for heat dissipation. However, the motor housing results in a small amount of heat being transferred out, thus the heat dissipation efficiency of the motor is poor. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing an electronically controlled drive structure for unmanned aerial vehicles (UAVs): the heat generated by the brushless motor during operation is fully guided to the heat dissipation fins, and the heat is dissipated after the airflow passes through, thereby improving heat dissipation efficiency, facilitating flight drive, and improving operational stability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electronically controlled drive structure for a drone includes a guide tube. Connecting rods, evenly spaced, are welded to the inner walls of both ends of the guide tube. An mounting tube is welded to the other end of each connecting rod. A brushless motor is mounted on the inner wall of the mounting tube, and a fan blade is mounted on the output shaft of the brushless motor. A mounting block is mounted on one outer wall of the guide tube, and a mounting rod is provided at one end of the mounting block. An adjustment assembly is provided between the mounting rod and the mounting block. The adjustment assembly includes a connecting groove at the center of one end of the mounting block, an insertion protrusion welded to the connecting groove on the outer wall of one end of the mounting block, and a sealing protrusion welded to the center of the outer wall of one end of the mounting block.

[0007] Preferably, the outer wall of the mounting tube has equidistantly distributed heat dissipation holes, and heat dissipation fins are installed on the outer wall of the mounting tube at the heat dissipation holes, with one side of the outer wall of the heat dissipation fins in contact with the outer wall of the brushless motor.

[0008] Preferably, a flow guide is installed on the top outer wall of the brushless motor, and the output shaft of the brushless motor is rotatably connected to the center of the flow guide. The outer wall of the heat dissipation fins is provided with auxiliary holes distributed at equal intervals.

[0009] Preferably, an adjustment groove is provided at the center of one end of the mounting rod, an adjustment motor is installed at one end of the inner wall of the adjustment groove, and the output shaft of the adjustment motor is connected to an adjustment shaft.

[0010] Preferably, one end of the mounting rod has a matching insertion groove at the insertion protrusion, and the other end of the mounting rod has a matching sealing ring groove at the sealing protrusion. The insertion protrusion and the sealing protrusion are respectively inserted into the inner walls of the insertion groove and the sealing ring groove.

[0011] Preferably, the other end of the adjusting shaft is inserted into the center of the connecting groove of the mounting block, and both the insertion protrusion and the sealing protrusion are annular structures.

[0012] Preferably, the regulating motor and the brushless motor are connected to the ESC driver via wires, and the ESC driver is connected to the power supply via wires.

[0013] The beneficial effects of this utility model are as follows:

[0014] The heat generated by the brushless motor during operation is fully guided to the heat dissipation fins. The airflow dissipates the heat, improving heat dissipation efficiency, which facilitates flight propulsion and improves operational stability.

[0015] After the motor starts, the adjusting shaft drives the guide tube of the mounting block to rotate on the mounting rod to adjust a certain angle, which facilitates the adjustment of the fan blade angle and makes it easy to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an electronically controlled drive structure for a drone proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the guide tube of the electronically controlled drive structure for a drone proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the unfolded part of the electronically controlled drive structure for a drone proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of one end of the mounting block of the electronic speed control drive structure for unmanned aerial vehicles (UAVs) proposed in this utility model.

[0020] In the diagram: 1. Guide tube, 2. Connecting rod, 3. Mounting tube, 4. Heat dissipation hole, 5. Brushless motor, 6. Fan blade, 7. Guide cover, 8. Mounting block, 9. Mounting rod, 10. Adjustment component, 11. Heat dissipation fins, 12. Auxiliary hole, 13. Connecting groove, 14. Insertion protrusion, 15. Sealing protrusion, 16. Adjustment shaft, 17. Adjustment groove, 18. Adjustment motor, 19. Insertion groove, 20. Sealing ring groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0022] Reference Figure 1-4 An electronically controlled drive structure for a drone includes a guide tube 1, with connecting rods 2 evenly distributed at both ends of the inner wall of the guide tube 1, and an installation tube 3 welded to the other end of the connecting rods 2. A brushless motor 5 is installed on the inner wall of the installation tube 3, and a fan blade 6 is installed on the output shaft of the brushless motor 5. An installation block 8 is installed on one side of the outer wall of the guide tube 1, and an installation rod 9 is provided at one end of the installation block 8. An adjustment component 10 is provided between the installation rod 9 and the installation block 8.

[0023] The outer wall of the mounting tube 3 has equidistantly distributed heat dissipation holes 4, and heat dissipation fins 11 are installed on the outer wall of the mounting tube 3 at the heat dissipation holes 4. One side of the outer wall of the heat dissipation fin 11 is attached to the outer wall of the brushless motor 5. The mounting tube 3 inside the guide tube 1 is fixed to the inner wall of the guide tube 1 by the connecting rod 2, which provides space for heat dissipation of the brushless motor 5 and facilitates airflow. The auxiliary holes 12 on the heat dissipation fin 11 facilitate airflow and further improve heat dissipation efficiency. The outer wall of the heat dissipation fin 11 is attached to the brushless motor 5, and the attachment is coated with silicone grease to fully guide the heat generated by the brushless motor 5 during operation to the heat dissipation fin 11. After the airflow passes through, the heat is dissipated, improving heat dissipation efficiency, facilitating flight, and improving operational stability.

[0024] A flow guide shroud 7 is installed on the top outer wall of the brushless motor 5, and the output shaft of the brushless motor 5 is rotatably connected to the center of the flow guide shroud 7. The outer wall of the heat dissipation fins 11 has auxiliary holes 12 distributed at equal intervals. The flow guide shroud 7 installed on the top outer wall of the brushless motor 5 is made of conical material, which guides the airflow passing through the top of the brushless motor 5 to the space between the flow guide pipe 1 and the mounting pipe 3, thereby reducing airflow resistance. Example

[0025] Reference Figure 1 As shown in Figure 3-4, the adjusting component 10 includes a connecting groove 13 at the center of one end of the mounting block 8, an insertion protrusion 14 welded to the outer wall of one end of the mounting block 8 at the connecting groove 13, and a sealing protrusion 15 welded to the center of the outer wall of one end of the mounting block 8. The mounting block 8 and the mounting rod 9 are connected and combined by inserting the insertion protrusion 14 into the insertion groove 19. The insertion protrusion 14 is snapped into the insertion groove 19 of the mounting rod 9 for easy connection.

[0026] An adjustment groove 17 is provided at the center of one end of the mounting rod 9. An adjustment motor 18 is installed at one end of the inner wall of the adjustment groove 17. The output shaft of the adjustment motor 18 is connected to the adjustment shaft 16.

[0027] One end of the mounting rod 9 is provided with a matching insertion groove 19 at the insertion protrusion 14, and the other end of the mounting rod 9 is provided with a matching sealing ring groove 20 at the sealing protrusion 15. The insertion protrusion 14 and the sealing protrusion 15 are respectively inserted into the inner walls of the insertion groove 19 and the sealing ring groove 20. The mounting block 8 is connected to the mounting rod 9 so that the sealing protrusion 15 is rotatably connected in the sealing ring groove 20, which seals the connection and improves the load-bearing capacity of the mounting rod 9 and the mounting block 8 in the vertical direction.

[0028] The other end of the adjusting shaft 16 is inserted into the center of the connecting groove 13 of the mounting block 8, and the insertion protrusion 14 and the sealing protrusion 15 are both annular structures. The adjusting shaft 13 is a T-shaped structure. After the adjusting motor 18 is started, it drives the mounting block 8 and the guide tube 1 to rotate on the mounting rod 9 through the adjusting shaft 16 to adjust a certain angle, which is convenient for adjusting the angle of the fan blade 6 and for easy use.

[0029] The regulating motor 18 and the brushless motor 5 are connected to the ESC driver via wires, and the ESC driver is connected to the power supply via wires.

[0030] Working principle: In use, one end of the mounting rod 9 is installed in the fuselage of the drone. One end of the mounting block 8 is aligned with the insertion slot 19 and the sealing ring slot 20. The insertion protrusion 14 and the sealing protrusion 15 are connected to the mounting rod 9. At this time, one end of the adjustment shaft 16 on the adjustment motor 18 is inserted into the connecting slot 13. The adjustment shaft 13 has a T-shaped structure. After the adjustment motor 18 is started, it drives the mounting block 8 and the guide tube 1 to rotate on the mounting rod 9 through the adjustment shaft 16 to adjust a certain angle, which is convenient for adjusting the angle of the fan blade 6 and for easy use. After the brushless motor 5 is started, the fan blade 6 lifts the whole unit. At this time, the airflow comes into contact with the heat dissipation fins 11 from top to bottom through the guide tube 1. The outer wall of the heat dissipation fins 11 is in contact with the brushless motor 5. The contact area is coated with silicone grease, which fully guides the heat generated by the brushless motor 5 during operation to the heat dissipation fins 11. After the airflow passes through, the heat is dissipated, improving the heat dissipation efficiency, which is convenient for driving flight and improving the stability of operation.

[0031] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An electronically controlled drive structure for a drone, comprising a flow guide tube (1), characterized in that, The inner walls of both ends of the guide tube (1) are welded with connecting rods (2) that are evenly distributed, and the other end of the connecting rod (2) is welded with an installation tube (3). The inner wall of the installation tube (3) is equipped with a brushless motor (5), and the output shaft of the brushless motor (5) is equipped with a fan blade (6). The outer wall of one side of the guide tube (1) is equipped with an installation block (8), and one end of the installation block (8) is provided with an installation rod (9). An adjustment component (10) is provided between the installation rod (9) and the installation block (8). The adjustment component (10) includes a connecting groove (13) opened at the center of one end of the mounting block (8), an insertion protrusion (14) welded to the outer wall of one end of the mounting block (8) at the connecting groove (13), and a sealing protrusion (15) welded to the center of the outer wall of one end of the mounting block (8).

2. The UAV ESC drive structure according to claim 1, characterized in that, The outer wall of the mounting tube (3) is provided with heat dissipation holes (4) distributed at equal intervals, and heat dissipation fins (11) are installed on the outer wall of the mounting tube (3) at the heat dissipation holes (4). One side of the outer wall of the heat dissipation fins (11) is attached to the outer wall of the brushless motor (5).

3. The UAV ESC drive structure according to claim 1, characterized in that, The brushless motor (5) has a flow guide (7) installed on the top outer wall, and the output shaft of the brushless motor (5) is rotatably connected to the center of the flow guide (7). The outer wall of the heat dissipation fins (11) has auxiliary holes (12) distributed at equal intervals.

4. The UAV ESC drive structure according to claim 1, characterized in that, An adjustment groove (17) is provided at the center of one end of the mounting rod (9). An adjustment motor (18) is installed at one end of the inner wall of the adjustment groove (17). The output shaft of the adjustment motor (18) is connected to the adjustment shaft (16).

5. The UAV ESC drive structure according to claim 1, characterized in that, One end of the mounting rod (9) is provided with a matching insertion groove (19) at the insertion protrusion (14), and the other end of the mounting rod (9) is provided with a matching sealing ring groove (20) at the sealing protrusion (15). The insertion protrusion (14) and the sealing protrusion (15) are respectively inserted into the inner walls of the insertion groove (19) and the sealing ring groove (20).

6. The UAV ESC drive structure according to claim 4, characterized in that, The other end of the adjusting shaft (16) is inserted into the center of the connecting groove (13) of the mounting block (8), and the insertion protrusion (14) and the sealing protrusion (15) are both annular structures.

7. The UAV ESC drive structure according to claim 4, characterized in that, The regulating motor (18) and the brushless motor (5) are connected to the ESC driver via wires, and the ESC driver is connected to the power supply via wires.

Images