Unmanned aerial vehicle motor radiator and use method

Abstract

The invention relates to the field of motor radiators, and discloses an unmanned aerial vehicle motor radiator and a using method.The unmanned aerial vehicle motor radiator comprises a radiator body, the inner wall of the radiator body is rotationally connected with a rotating disc, arc-shaped grooves are evenly formed in the rotating disc, and sliding rods are slidably connected into the arc-shaped grooves of the rotating disc; a sliding plate is fixedly connected to one side of the sliding rod, the outer wall of the sliding plate is slidably connected into the plate groove, an arc-shaped clamping plate is fixedly connected to one side of the sliding plate, a sliding block is fixedly connected to the outer wall of the rotating disc, the outer wall of the sliding block is slidably connected into the sliding groove, and a screw rod is fixedly connected to one side of the sliding block. And the outer wall of the screw rod is in threaded connection with a nut. The sliding blocks move in the sliding grooves, the rotating discs drive the arc-shaped grooves to promote the sliding rods to drive the sliding plates to move towards the interior of the radiator body, the arc-shaped clamping plates clamp the outer wall of the motor shell, a nut is screwed, installation is completed, and rapid and stable installation of the radiator body and the motor shells of different sizes is achieved.

Description

Technical Field

[0001] This invention relates to the field of motor heat sink technology, specifically to a heat sink for a drone motor and its usage method. Background Technology

[0002] With the rapid development of drone technology, multi-rotor drones are increasingly widely used in aerial photography, surveying, inspection and other fields. Their functions are constantly being upgraded and iterated. For example, DJI Air3S and other models have added a LiDAR module and optimized the gimbal lens image quality to improve operational performance, which has led to a significant increase in the load on the front motor. As a core power component, the drone motor will experience a sharp increase in operating temperature under conditions such as high temperature environment and long-term heavy-load flight. The temperature of the front motor of some models has even exceeded 100°C, which can easily cause the high temperature to melt and break at the connection between the motor base and the arm, causing the drone to lose balance and crash. This seriously affects flight safety and equipment reliability. Therefore, a drone motor heat sink is needed.

[0003] Traditional heat sinks can only fit a single motor housing size. There are many drone models with different motor housing sizes. A single-size heat sink is not versatile enough, which makes it impossible to quickly and stably install the heat sink on the outer wall of the motor housing, thereby reducing the heat sink's heat dissipation effect on the motor. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a drone motor heat sink and its usage method. It solves the problem that traditional heat sinks can only be adapted to a single motor housing size. With many drone models and different motor housing sizes, the lack of universality of single-size heat sinks makes it impossible for the heat sink to be quickly and stably installed on the outer wall of the motor housing, thereby reducing the heat dissipation effect of the heat sink on the motor.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drone motor radiator, comprising a radiator body and an external rotor motor. A turntable is rotatably connected to the inner wall of the radiator body. The turntable has evenly spaced arc-shaped grooves inside. A sliding rod is slidably connected within the arc-shaped grooves of the turntable. A sliding plate is fixedly connected to one side of the sliding rod. Plate grooves are evenly spaced on the outer wall of the radiator body. The outer wall of the sliding plate is slidably connected to the plate grooves. An arc-shaped clamping plate is fixedly connected to one side of the sliding plate. A slider is fixedly connected to the outer wall of the turntable. A sliding groove is formed on the outer wall of the radiator body. The outer wall of the slider is slidably connected to the sliding groove. A screw is fixedly connected to one side of the slider. A nut is threaded onto the outer wall of the screw. A ventilation assembly is installed on the outer wall of the radiator body.

[0006] By adopting the above technical solution, after the radiator body is fitted onto the outer wall of the motor housing, the sliding slider moves it in the slide groove, causing the turntable to rotate. The arc groove on the turntable causes the sliding rod to move the sliding plate into the radiator body, thereby making the arc clamping plate gradually approach and contact the outer wall of the motor housing. Tightening the nut completes the installation. Loosening the nut and operating in the opposite direction allows the radiator body to be easily removed. This achieves rapid and stable installation and disassembly of the radiator body and motor housings of different sizes, improving the efficiency of the overall assembly and maintenance of the UAV.

[0007] Preferably, the ventilation assembly includes fixed blades, one side of which is uniformly fixedly connected to the outer wall of the radiator body. The outer wall of the radiator body is uniformly provided with first ventilation slots, and one end of the fixed blades is disposed on one side of the first ventilation slots.

[0008] Preferably, a rotating shaft is uniformly rotatably connected to the top of the radiator body, and a movable blade is fixedly connected to the outer wall of the rotating shaft. One side of the movable blade is rotatably connected to the outer wall of the radiator body. A second ventilation groove is uniformly opened on the outer wall of the radiator body, and one end of the movable blade is located on one side of the second ventilation groove.

[0009] Preferably, a circular gear is fixedly connected to the top of the rotating shaft, the tooth end of the circular gear is meshed with a gear ring, and the bottom of the gear ring is rotatably connected to the top of the radiator body.

[0010] Preferably, a fixing plate is fixedly connected to the top of the radiator body, a guide rod is slidably connected inside the fixing plate, a toothed plate is fixedly connected to one end of the guide rod, and one side of the toothed plate is engaged in the toothed ring.

[0011] Preferably, a threaded rod is rotatably connected to the other side of the toothed plate, and the outer wall of the threaded rod is threadedly connected to the fixed plate.

[0012] Preferably, the output end of the external rotor motor is fixedly connected to a support shaft, the top of the support shaft is fixedly connected to a motor housing, the outer wall of the motor housing is disposed on the inner wall of the arc-shaped clamp, and the inner wall of the motor housing is disposed on the outer wall of the external rotor motor.

[0013] Preferably, a mounting plate is fixedly connected to the top of the motor housing, and fan blades are symmetrically installed inside the mounting plate.

[0014] Preferably, a drive gear is fixedly connected to the outer wall of the support shaft, a driven gear is uniformly meshed with the tooth tip of the drive gear, a rotating shaft is fixedly connected to the inner wall of the driven gear, the bottom of the rotating shaft is rotatably connected to the top of the outer rotor motor, fan blades are uniformly fixedly connected to the top of the rotating shaft, and through holes are uniformly opened on the top of the motor housing.

[0015] A heat sink for a drone motor and its usage method, comprising the following steps:

[0016] When in use, the radiator body is fitted onto the outer wall of the motor housing. The sliding slider moves along the slide groove, causing the turntable to rotate. The arc groove of the turntable causes the slide rod to slide, which in turn causes the sliding plate and the arc clamp to move inward until the arc clamp clamps the motor housing. Tighten the nut to fix the slider and the turntable to complete the installation.

[0017] When adjusting the angle of the movable blade, rotate the gear ring to engage the circular gear, which drives the rotating shaft and the movable blade to rotate.

[0018] Then rotate the threaded rod to make the toothed plate engage with the toothed ring groove under the action of the guide rod;

[0019] The external rotor motor drives the motor housing to rotate, which in turn drives the radiator body to rotate synchronously. Fixed blades and movable blades guide the air, and the cold air acts on the motor housing through the first ventilation slot and the second ventilation slot to achieve basic heat dissipation.

[0020] The external rotor motor drives the motor housing and fan blades to rotate via the support shaft, allowing the drone to fly. At the same time, the support shaft drives the drive gear, driven gear, rotating shaft, and fan blades to rotate. Outside air enters the motor housing through the through hole, achieving dual heat dissipation in conjunction with the radiator body.

[0021] To remove the radiator, loosen the nuts, slide the slider in the opposite direction, and move the arc-shaped clamp away from the motor housing.

[0022] This invention provides a heat sink for a drone motor and a method for using it. It has the following beneficial effects:

[0023] 1. This invention involves mounting the radiator body onto the outer wall of the motor housing, then sliding a slider to move it within a groove, causing a turntable to rotate. The arc-shaped groove on the turntable causes a sliding rod to move a sliding plate towards the interior of the radiator body, thereby gradually bringing the arc-shaped clamping plate closer to and contacting the outer wall of the motor housing. Tightening the nut completes the installation, while loosening the nut allows for easy removal of the radiator body. This invention enables rapid and stable installation and disassembly of the radiator body and motor housings of different sizes, improving the efficiency of overall assembly and maintenance of the UAV.

[0024] 2. This invention involves manually rotating a gear ring on top of the radiator body. The teeth of the gear ring mesh with the teeth of a circular gear, causing the circular gear to rotate around its own axis. The circular gear then drives the rotating shaft to rotate synchronously, thereby driving the movable blades to rotate around the axis of the rotating shaft. This allows for adjustment of the guide angle of the movable blades, thus adapting to different flight conditions and the flight requirements of different types of UAVs.

[0025] 3. This invention drives the motor housing to rotate via the support shaft, which in turn drives the drive gear to rotate. The drive gear then drives the driven gear to rotate, causing the shaft to rotate the fan blades. Outside air enters the motor housing through the through-hole, further cooling the motor. With the cooperation of the radiator body, a dual cooling mechanism is achieved, improving the cooling effect and ensuring that the motor can maintain a suitable operating temperature under high load or complex working conditions, avoiding performance degradation or damage due to overheating. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a partial structural diagram of the turntable of the present invention;

[0028] Figure 3 This is a partial structural diagram of the sliding plate of the present invention;

[0029] Figure 4 This is a partial structural diagram of the slide bar of the present invention;

[0030] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle;

[0031] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0032] Figure 7 This is a partial structural diagram of the external rotor motor of the present invention;

[0033] Figure 8 This is a partial structural diagram of the motor housing of the present invention.

[0034] The components include: 1. Radiator body; 101. External rotor motor; 2. Turntable; 201. Arc groove; 202. Slide rod; 203. Sliding plate; 204. Arc clamp; 205. Slider; 206. Slide groove; 207. Screw; 208. Nut; 3. First ventilation slot; 301. Fixed blade; 4. Rotating shaft; 401. Movable blade; 402. Second ventilation slot; 403. Circular gear; 404. Gear ring; 5. Fixed plate; 501. Guide rod; 502. Toothed plate; 503. Threaded rod; 6. Support shaft; 601. Motor housing; 602. Mounting plate; 603. Fan blade; 7. Drive gear; 701. Driven gear; 702. Rotating shaft; 703. Fan blade; 8. Through hole. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see the appendix Figure 1 -Appendix Figure 5 This invention provides a drone motor radiator, including a radiator body 1 and an external rotor motor 101. A turntable 2 is rotatably connected to the inner wall of the radiator body 1. The turntable 2 has evenly spaced arc-shaped grooves 201 inside. A slide rod 202 is slidably connected to the arc-shaped grooves 201 of the turntable 2. A sliding plate 203 is fixedly connected to one side of the slide rod 202. The outer wall of the radiator body 1 has evenly spaced plate grooves. The outer wall of the sliding plate 203 is slidably connected to the plate grooves. An arc-shaped clamping plate 204 is fixedly connected to one side of the sliding plate 203. A slider 205 is fixedly connected to the outer wall of the turntable 2. A sliding groove 206 is opened on the outer wall of the radiator body 1. The outer wall of the slider 205 is slidably connected to the sliding groove 206. A screw 207 is fixedly connected to one side of the slider 205. A nut 208 is threadedly connected to the outer wall of the screw 207. A ventilation assembly is installed on the outer wall of the radiator body 1.

[0037] Specifically, the radiator body 1 is fitted onto the outer wall of the motor housing 601 of the external rotor motor 101. The sliding slider 205 moves within the sliding groove 206. The movement of the slider 205 drives the turntable 2 to rotate. When the turntable 2 rotates, the arc groove 201 inside it rotates accordingly, causing the sliding rod 202 to slide within the arc groove 201. The sliding of the sliding rod 202 drives the sliding plate 203 to move into the radiator body 1. The movement of the sliding plate 203 drives the arc clamping plate 204 to gradually approach and contact the outer wall of the motor housing 601 until the three arc clamping plates 204 evenly clamp the motor housing 601. The nut 208 is tightened. The nut 208 is threadedly connected to the screw 207. The position of the slider 205 is fixed by tightening the nut 208, thereby fixing the position of the turntable 2, thus completing the quick and stable installation of the radiator body 1 and the motor housing 601.

[0038] During disassembly, loosen the nut 208 to release the fixation of the slider 205, slide the slider 205 in the opposite direction to make it move in the opposite direction within the slide groove 206, causing the turntable 2 to rotate in the opposite direction. The internal arc groove 201 of the turntable 2 causes the slide rod 202 to move the sliding plate 203 towards the outside of the radiator body 1. The movement of the sliding plate 203 causes the arc clamp 204 to gradually move away from the outer wall of the motor housing 601. At this time, the radiator body 1 can be easily removed, realizing the rapid and stable installation and disassembly of the radiator body 1 and motor housings 601 of different sizes, improving the efficiency of the overall assembly and maintenance of the UAV.

[0039] Please see the appendix Figure 1 -Appendix Figure 4 The ventilation assembly includes a fixed blade 301, one side of which is uniformly fixedly connected to the outer wall of the radiator body 1. The outer wall of the radiator body 1 is uniformly provided with a first ventilation groove 3, and one end of the fixed blade 301 is located on one side of the first ventilation groove 3.

[0040] A rotating shaft 4 is uniformly rotatably connected to the top of the radiator body 1. A movable blade 401 is fixedly connected to the outer wall of the rotating shaft 4. One side of the movable blade 401 is rotatably connected to the outer wall of the radiator body 1. A second ventilation groove 402 is uniformly opened on the outer wall of the radiator body 1. One end of the movable blade 401 is located on one side of the second ventilation groove 402.

[0041] Specifically, the first ventilation slot 3 and the second ventilation slot 402 work together and are evenly distributed on the outer wall of the radiator body 1. When the external rotor motor 101 is in operation, it drives the motor housing 601 to rotate. The motor housing 601 will drive the radiator body 1 to rotate synchronously. When the radiator body 1 rotates, the fixed blades 301 and the movable blades 401 on the outer wall will generate a centrifugal air guiding effect, guiding the outside cold air to the first ventilation slot 3 and the second ventilation slot 402. At the same time, the cold air directly acts on the outer wall of the motor housing 601 through the first ventilation slot 3 and the second ventilation slot 402, quickly taking away the heat transferred by the motor housing 601, realizing basic heat dissipation of the external rotor motor 101, and avoiding excessively high motor operating temperature.

[0042] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 4 -Appendix Figure 6 A circular gear 403 is fixedly connected to the top of the rotating shaft 4. A gear ring 404 is meshed with the tooth end of the circular gear 403. The bottom of the gear ring 404 is rotatably connected to the top of the radiator body 1.

[0043] A fixing plate 5 is fixedly connected to the top of the radiator body 1. A guide rod 501 is slidably connected inside the fixing plate 5. A toothed plate 502 is fixedly connected to one end of the guide rod 501. One side of the toothed plate 502 is engaged in the toothed ring 404.

[0044] A threaded rod 503 is rotatably connected to the other side of the toothed plate 502, and the outer wall of the threaded rod 503 is threadedly connected to the fixed plate 5.

[0045] Specifically, to adapt to different flight conditions, the angle of the movable blade 401 can be adjusted through a gear transmission structure. During adjustment, the gear ring 404 is manually rotated on the top of the radiator body 1. The tooth end of the gear ring 404 meshes with the tooth end of the circular gear 403, driving the circular gear 403 to rotate around its own axis. The circular gear 403 will drive the rotating shaft 4 to rotate synchronously, thereby driving the movable blade 401 to rotate around the axis of the rotating shaft 4, realizing the adjustment of the air guide angle of the movable blade 401. The adjustment range is 10°-30°. The materials of the circular gear 403 and the gear ring 404 are the same as those of the radiator body 1.

[0046] After the angle is adjusted to the target position, rotate the threaded rod 503. Under the axial guidance of the guide rod 501, the toothed plate 502 will move along the axis of the guide rod 501 towards the gear ring 404 until one side of the toothed plate 502 is engaged in the tooth groove of the gear ring 404. The rotation of the gear ring 404 is restricted by the mechanical engagement structure, ensuring the angle of the movable blade 401 is stable and avoiding angle deviation caused by flight vibration.

[0047] When the drone is under heavy load and high temperature conditions, the angle of the movable blades can be increased by 401 to enhance ventilation and heat dissipation. This can dissipate heat more effectively, prevent the motor from melting due to overheating, and ensure the safe operation of the drone under extreme conditions.

[0048] When the drone is flying at high speed, the angle of the movable blades is adjusted to a smaller angle to reduce wind resistance and energy loss, thereby improving the drone's endurance and enabling it to perform missions over longer distances or for longer periods of time.

[0049] Meanwhile, by adjusting the angle of the movable blade 401, it can be adapted to various models of drones, meeting the diverse needs of different models for heat dissipation and wind resistance, achieving the goal of lightweight and low-cost optimization of drones, and improving the versatility of the product.

[0050] Please see the appendix Figure 2 Appendix Figure 7 Appendix Figure 8 The output end of the external rotor motor 101 is fixedly connected to a support shaft 6, and the top of the support shaft 6 is fixedly connected to a motor housing 601. The outer wall of the motor housing 601 is set on the inner wall of the arc-shaped clamping plate 204, and the inner wall of the motor housing 601 is set on the outer wall of the external rotor motor 101.

[0051] A mounting plate 602 is fixedly connected to the top of the motor housing 601, and fan blades 603 are symmetrically installed inside the mounting plate 602;

[0052] A drive gear 7 is fixedly connected to the outer wall of the support shaft 6. The tooth ends of the drive gear 7 are evenly meshed with the driven gear 701. A rotating shaft 702 is fixedly connected to the inner wall of the driven gear 701. The bottom of the rotating shaft 702 is rotatably connected to the top of the outer rotor motor 101. Fan blades 703 are evenly fixedly connected to the top of the rotating shaft 702. Through holes 8 are evenly opened on the top of the motor housing 601.

[0053] Specifically, when the external rotor motor 101 rotates, it drives the motor housing 601 to rotate through the support shaft 6. The motor housing 601 drives the fan blades 603 on the mounting plate 602 to rotate. The airflow generated by the rotation of the fan blades 603 enables the drone to fly.

[0054] Meanwhile, the support shaft 6 drives the drive gear 7 to rotate, the drive gear 7 rotates the driven gear 701 to rotate, the driven gear 701 rotates the shaft 702 to rotate, and the shaft 702 rotates the fan blades 703 to rotate. Outside air enters the motor housing 601 through the through hole 8 to further dissipate heat from the motor. With the cooperation of the radiator body 1, a dual heat dissipation mechanism is achieved, which improves the heat dissipation effect and ensures that the motor can maintain a suitable operating temperature under high load or complex working conditions, avoiding performance degradation or damage caused by overheating.

[0055] A heat sink for a drone motor and its usage method, comprising the following steps:

[0056] In use, the radiator body 1 is fitted onto the outer wall of the motor housing 601. The sliding slider 205 moves along the slide groove 206, causing the turntable 2 to rotate. The arc groove 201 of the turntable 2 causes the slide rod 202 to slide, which in turn causes the sliding plate 203 and the arc clamping plate 204 to move inward until the arc clamping plate 204 clamps the motor housing 601. The nut 208 is tightened to fix the slider 205 and the turntable 2 to complete the installation.

[0057] When adjusting the angle of the movable blade 401, the gear ring 404 is rotated to mesh with the circular gear 403, which drives the rotating shaft 4 and the movable blade 401 to rotate.

[0058] Then rotate the threaded rod 503 so that the toothed plate 502 is locked into the tooth groove of the toothed ring 404 under the action of the guide rod 501;

[0059] The external rotor motor 101 drives the motor housing 601 to rotate, which in turn drives the radiator body 1 to rotate synchronously. The fixed blades 301 and the movable blades 401 guide the air, and the cold air acts on the motor housing 601 through the first ventilation slot 3 and the second ventilation slot 402 to achieve basic heat dissipation.

[0060] The external rotor motor 101 drives the motor housing 601 and the fan blades 603 to rotate via the support shaft 6, allowing the drone to fly. At the same time, the support shaft 6 drives the drive gear 7, the driven gear 701, the rotating shaft 702 and the fan blades 703 to rotate. Outside air enters the motor housing 601 through the through hole 8, which, together with the heat sink body 1, achieves dual heat dissipation.

[0061] During disassembly, loosen the nut 208, slide the slider 205 in the opposite direction, and move the arc-shaped clamp 204 away from the motor housing 601 to remove the radiator body 1.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat sink for a drone motor, comprising a heat sink body (1) and an external rotor motor (101), characterized in that: The inner wall of the radiator body (1) is rotatably connected to a turntable (2). The turntable (2) has evenly spaced arc grooves (201) inside. A slide rod (202) is slidably connected in the arc grooves (201) of the turntable (2). A sliding plate (203) is fixedly connected to one side of the slide rod (202). The outer wall of the radiator body (1) has evenly spaced plate grooves. The outer wall of the sliding plate (203) is slidably connected in the plate grooves. An arc-shaped clamp (204) is fixedly connected to one side of the sliding plate (203). A slider (205) is fixedly connected to the outer wall of the turntable (2). A sliding groove (206) is opened on the outer wall of the radiator body (1). The outer wall of the slider (205) is slidably connected in the sliding groove (206). A screw (207) is fixedly connected to one side of the slider (205). A nut (208) is threadedly connected to the outer wall of the screw (207). A ventilation assembly is installed on the outer wall of the radiator body (1).

2. The UAV motor heat sink according to claim 1, characterized in that: The ventilation assembly includes a fixed blade (301), one side of which is uniformly fixed to the outer wall of the radiator body (1). The outer wall of the radiator body (1) is uniformly provided with a first ventilation groove (3), and one end of the fixed blade (301) is located on one side of the first ventilation groove (3).

3. The UAV motor heat sink according to claim 1, characterized in that: The top of the radiator body (1) is uniformly rotatably connected to a rotating shaft (4), and a movable blade (401) is fixedly connected to the outer wall of the rotating shaft (4). One side of the movable blade (401) is rotatably connected to the outer wall of the radiator body (1). The outer wall of the radiator body (1) is uniformly provided with a second ventilation groove (402), and one end of the movable blade (401) is located on one side of the second ventilation groove (402).

4. A drone motor heat sink according to claim 3, characterized in that: A circular gear (403) is fixedly connected to the top of the rotating shaft (4), and a gear ring (404) is meshed with the tooth end of the circular gear (403). The bottom of the gear ring (404) is rotatably connected to the top of the radiator body (1).

5. A drone motor heat sink according to claim 1, characterized in that: A fixing plate (5) is fixedly connected to the top of the radiator body (1). A guide rod (501) is slidably connected inside the fixing plate (5). A toothed plate (502) is fixedly connected to one end of the guide rod (501). One side of the toothed plate (502) is engaged in the toothed ring (404).

6. A drone motor heat sink according to claim 5, characterized in that: A threaded rod (503) is rotatably connected to the other side of the toothed plate (502), and the outer wall of the threaded rod (503) is threadedly connected to the fixed plate (5).

7. A heat sink for a drone motor according to claim 1, characterized in that: The output end of the external rotor motor (101) is fixedly connected to a support shaft (6), and the top of the support shaft (6) is fixedly connected to a motor housing (601). The outer wall of the motor housing (601) is set on the inner wall of the arc-shaped clamp (204), and the inner wall of the motor housing (601) is set on the outer wall of the external rotor motor (101).

8. A UAV motor heat sink according to claim 7, characterized in that: The top of the motor housing (601) is fixedly connected to a mounting plate (602), and fan blades (603) are symmetrically installed inside the mounting plate (602).

9. A heat sink for a drone motor according to claim 7, characterized in that: The outer wall of the support shaft (6) is fixedly connected to a drive gear (7), the tooth ends of the drive gear (7) are uniformly meshed with a driven gear (701), the inner wall of the driven gear (701) is fixedly connected to a rotating shaft (702), the bottom of the rotating shaft (702) is rotatably connected to the top of the outer rotor motor (101), the top of the rotating shaft (702) is uniformly fixedly connected to a fan blade (703), and the top of the motor housing (601) is uniformly provided with through holes (8).

10. A heat sink for a drone motor and its method of use, characterized in that: The application of a drone motor heat sink according to any one of claims 1-9 includes the following steps: When in use, the radiator body (1) is fitted onto the outer wall of the motor housing (601), the sliding block (205) moves along the slide groove (206) to drive the turntable (2) to rotate, the arc groove (201) of the turntable (2) causes the slide rod (202) to slide, which in turn drives the sliding plate (203) and the arc clamp (204) to move inward until the arc clamp (204) clamps the motor housing (601), and the nut (208) is tightened to fix the sliding block (205) and the turntable (2) to complete the installation; When adjusting the angle of the movable blade (401), the gear ring (404) is rotated to mesh with the circular gear (403), which drives the rotating shaft (4) and the movable blade (401) to rotate. Then rotate the threaded rod (503) so that the toothed plate (502) is locked into the tooth groove of the toothed ring (404) under the action of the guide rod (501); The external rotor motor (101) drives the motor housing (601) to rotate, which in turn drives the radiator body (1) to rotate synchronously. The fixed blades (301) and movable blades (401) guide the air, and the cold air acts on the motor housing (601) through the first ventilation slot (3) and the second ventilation slot (402) to achieve basic heat dissipation. The external rotor motor (101) drives the motor housing (601) and fan blades (603) to rotate via the support shaft (6). The drone flies, and at the same time, the support shaft (6) drives the drive gear (7), driven gear (701), rotating shaft (702) and fan blades (703) to rotate. Outside air enters the motor housing (601) through the through hole (8) and achieves dual heat dissipation in conjunction with the heat sink body (1). During disassembly, loosen the nut (208), slide the slider (205) in the opposite direction, and move the arc-shaped clamp (204) away from the motor housing (601) to remove the radiator body (1).

Images