Unmanned aerial vehicle motor with high heat dissipation efficiency

Abstract

The invention relates to the technical field of unmanned aerial vehicle motors, and discloses an unmanned aerial vehicle motor with high heat dissipation efficiency. Comprising a bottom plate, a machine shell, a stator, a rotor and an output shaft, the bottom plate is located at the bottom of the machine shell, the stator is fixedly installed at the top of the bottom plate, the rotor is arranged in the stator, the top of the rotor is fixedly connected with the bottom of the output shaft, and the surface of the output shaft is rotationally connected with the inner wall of the machine shell through a bearing; u-shaped blocks are fixedly connected to the two sides of the machine shell correspondingly, and clamping blocks used in cooperation with the U-shaped blocks are fixedly installed at the top of the bottom plate. By arranging the cooling mechanism, a miniature refrigerator can be started to refrigerate air in a refrigeration box, then cold air passes through a connecting pipe, a transmission box and a conduction pipe to enter a compression box, then the cold air enters a machine shell through a plurality of air spraying pipes, heat dissipation is conducted on the interior of the motor through the cold air, and the heat dissipation efficiency of the motor is improved. And faults caused by overheating in the motor are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV motors, and specifically to a UAV motor with high heat dissipation efficiency. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV", is an unpiloted aircraft controlled by radio remote control equipment and self - contained program control devices, or operated completely or intermittently autonomously by an on - board computer. Compared with piloted aircraft, UAVs are often more suitable for tasks that are too "dull, dirty or dangerous". According to the application field, UAVs can be divided into military and civilian. In the military aspect, UAVs are divided into reconnaissance aircraft and target drones. The main function of the motor in the UAV is to convert electrical energy into mechanical energy, drive the propeller to rotate, thereby generating lift, enabling the UAV to overcome gravity and achieve flight.

[0003] After retrieval, as disclosed in the Chinese patent document, a motor heat dissipation system and a UAV power device [Publication No.: CN117294076B]. It includes a rotating shaft, a stator assembly, a rotor assembly, and a fairing assembly. The stator assembly includes a bearing seat sleeved on the rotating shaft, an iron core arranged outside the bearing seat, and a coil winding wound around the iron core. A through - slot is opened on the bearing seat, and an iron - core heat sink is provided on the iron core and located in the through - slot; the rotor assembly includes a heat - dissipation fan connected to the rotating shaft, a steel ring sleeved outside the iron core, and a permanent - magnet component located inside the steel ring; the fairing assembly includes an external fairing sleeved outside the steel ring, a top fairing located above the heat - dissipation fan, and a bottom fairing located below the bearing seat. The two sides of the external fairing are respectively connected to the top fairing and the bottom fairing through a first connecting piece and a second connecting piece. The UAV power device includes the above - mentioned motor heat dissipation system. This motor heat dissipation system solves the problem of poor heat dissipation effect of the existing motor and affecting the working state.

[0004] When the UAV motor is working, it needs to continuously and rapidly drive the propeller to rotate to ensure the normal flight of the UAV. The continuous rotation of the motor will cause the temperature inside the motor to overheat. Most of the existing motors dissipate heat by opening heat - dissipation holes to accelerate air flow, with low cooling efficiency, and the motor is prone to damage due to over - high temperature;

[0005] Therefore, we propose a UAV motor with high heat dissipation efficiency to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a UAV motor with high heat dissipation efficiency to solve the problems raised in the above - mentioned background art.

[0007] To achieve the above object, the present invention provides the following technical solution: An unmanned aerial vehicle motor with high heat dissipation efficiency, including a bottom plate, a housing, a stator, a rotor and an output shaft. The bottom plate is located at the bottom of the housing. The stator is fixedly installed on the top of the bottom plate. The rotor is arranged inside the stator. The top of the rotor is fixedly connected to the bottom of the output shaft. The surface of the output shaft is rotationally connected to the inner wall of the housing through a bearing. Both sides of the housing are fixedly connected with U-shaped blocks. The top of the bottom plate is fixedly installed with a clamping block that is used in cooperation with the U-shaped block. A disassembly mechanism is arranged inside the clamping block. Four positioning blocks are fixedly connected inside the housing. A rotating block is arranged at the bottom of the positioning block. A plurality of fan blades are fixedly connected to the circumferential side of the rotating block.

[0008] Preferably, the cooling mechanism is fixedly arranged on the circumferential side of the housing;

[0009] The cooling mechanism includes four refrigeration boxes fixedly arranged on the circumferential side of the housing. An air inlet pipe is fixedly communicated with the top of the refrigeration box. A micro-refrigerator is fixedly installed on one side of the refrigeration box. A connecting pipe is fixedly communicated with the other side of the refrigeration box. One end of the connecting pipe penetrates into the interior of the housing and is fixedly communicated with a transmission box. One side of the transmission box is fixedly connected to the inner wall of the housing. A conduit is fixedly communicated with the bottom of the transmission box. A compression box is fixedly connected to the inner wall of the housing. The bottom of the conduit is fixedly communicated with the top of the compression box. An air injection pipe is fixedly communicated with the bottom of the compression box.

[0010] Preferably, the heat dissipation mechanism is fixedly arranged on the circumferential side of the output shaft. When the output shaft rotates, the heat dissipation mechanism drives the fan blades to generate wind power;

[0011] The heat dissipation mechanism includes a toothed disc fixedly connected to the surface of the output shaft. A transmission rod is fixedly connected to the top of the rotating block. A gear is fixedly connected to the top of the transmission rod. The gear is meshed with the toothed disc. A rotating shaft is arranged at the top of the gear and is rotationally connected to the bottom of the positioning block through the rotating shaft. An extrusion mechanism is arranged inside the transmission box.

[0012] Preferably, the extrusion mechanism includes a piston plate slidably connected inside the transmission box. A push plate is fixedly connected to one side of the piston plate. A push rod is fixedly connected to one side of the push plate. One end of the push rod penetrates to one side of the transmission box and is fixedly connected with an extrusion block. An extrusion rod that is used in cooperation with the extrusion block is fixedly connected to the surface of the transmission rod. A tension spring is sleeved on the surface of the extrusion rod. One end of the tension spring is fixedly connected to the inner wall of the transmission box. The other end of the tension spring is fixedly connected to one side of the push plate.

[0013] Preferably, the disassembly mechanism includes a spring arranged inside the clamping block. Moving blocks are fixedly connected to both ends of the spring. A positioning rod is fixedly connected to one end of the moving block away from the spring. One end of the positioning rod penetrates to the outside of the clamping block. Positioning holes that are used in cooperation with the positioning rod are opened on both sides of the U-shaped block.

[0014] Preferably, a pressing block is fixedly connected to the top of the moving block, and a sliding groove for cooperating with the pressing block is formed in the top of the clamping block.

[0015] Preferably, both sides of the extrusion block are in the shape of slopes, and one end of the extrusion rod is spherical.

[0016] Preferably, a first one-way valve is fixedly installed on the surface of the air inlet pipe, and a second one-way valve is fixedly installed on the surface of the transmission pipe.

[0017] Preferably, the number of the jet pipes is several, and a one-way pressure valve is fixedly installed on the surface.

[0018] Preferably, the transmission box, the transmission pipe and the compression box are all made of heat-conducting materials.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. By setting a cooling mechanism, the present invention can start the micro-refrigerator, and the micro-refrigerator will cool the air in the refrigeration box. Then, the cold air will enter the compression box through the connecting pipe, the transmission box and the transmission pipe. After that, it will enter the machine shell through multiple jet pipes, and the cold air will dissipate heat inside the motor to prevent the motor from malfunctioning due to overheating.

[0021] 2. By setting a heat dissipation mechanism, when the rotor in the motor drives the output shaft to rotate, the toothed disc will rotate synchronously with the output shaft, and at the same time drive the gear to rotate around the rotating shaft. The gear will drive the transmission rod, the rotating block and the fan blade to rotate. The rotation of the fan blade will generate wind force. Under the action of the wind force, the cold air will be evenly dispersed inside the machine shell. At the same time, the wind force will also blow out the heat energy generated by the motor from the inside of the machine shell, improving the heat dissipation effect.

[0022] 3. By setting an extrusion mechanism, when the transmission rod rotates, it will drive the extrusion rod to rotate. When the spherical part of the extrusion rod presses against the slope part of the extrusion block, affected by the extrusion, the extrusion block will drive the push plate and the piston plate to move away from the side of the tension spring. The cold air in the transmission box will quickly enter the compression box through the transmission pipe. When the extrusion rod rotates to not contact the extrusion block, the pulling force generated by the tension spring will drive the push plate and the piston plate to reset. At this time, a negative pressure is formed in the transmission box, and new air will enter the inside of the refrigeration box through the air inlet pipe for refrigeration, and then enter the transmission box through the connecting pipe, and cycle in turn, intermittently compressing gas into the compression box. When the air pressure in the compression box is greater than the limit of the one-way pressure valve, the gas will be ejected from the jet pipe. The aperture of the jet pipe is designed in the form of gradually decreasing from large to small. When the gas is ejected, the spraying speed will gradually increase, and finally it will be sprayed onto the stator inside the machine shell. On the one hand, it enables the cold air to quickly contact the heat source, and at the same time, the gushing of the cold air can also disperse and discharge the heat energy generated by the stator, further improving the heat dissipation effect.

[0023] 4. By providing a disassembly mechanism in the present invention, when it is necessary to repair the motor, two pressing blocks can be pushed towards the side where they approach each other. The pressing blocks will drive the moving blocks to move along the trajectory of the sliding grooves, and the positioning rods will move synchronously with the moving blocks, causing the positioning rods to leave the inside of the positioning holes, releasing the restriction on the U-shaped blocks. At this time, when the machine shell is moved upward, the machine shell can be separated from the bottom plate, thus facilitating the repair of the motor. After the repair is completed, by aligning the positions of the clamping blocks and the U-shaped blocks and pushing the machine shell downward, the clamping blocks will enter the inside of the U-shaped blocks. Then, when the pressing blocks are released, the elastic force generated by the springs will push the moving blocks to move towards the side away from the springs, and the moving blocks will drive the positioning rods to enter the inside of the positioning holes, completing the fixation of the U-shaped blocks, and further completing the connection between the bottom plate and the machine shell, and the motor can then be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 is a perspective view of the cross-section of the main structure of the present invention;

[0026] Figure 3 is a perspective view of the partial structure of the cooling mechanism and the heat dissipation mechanism of the present invention;

[0027] Figure 4 is a perspective view of the partial structure of the present invention;

[0028] Figure 5 is a perspective view of the partial structure of the disassembly mechanism of the present invention;

[0029] Figure 6 is a schematic diagram of the side cross-section of the main structure of the present invention;

[0030] Figure 7 in the present invention Figure 6 is a partially enlarged view of part A;

[0031] Figure 8 is a perspective view of the heat dissipation mechanism of the present invention;

[0032] Figure 9 is a schematic diagram of the movement trajectory of the partial structure of the present invention;

[0033] Figure 10 is a perspective view of the partial structure of the extrusion mechanism of the present invention.

[0034] In the figure: 1, bottom plate; 2, casing; 3, stator; 4, rotor; 5, output shaft; 6, U-shaped block; 7, clamping block; 8, positioning block; 9, rotating block; 10, fan blade; 11, refrigeration box; 12, intake pipe; 13, micro-refrigerator; 14, connecting pipe; 15, transmission box; 16, conduction pipe; 17, compression box; 18, jet pipe; 19, gear disk; 20, transmission rod; 21, gear; 22, rotating shaft; 23, piston plate; 24, push plate; 25, push rod; 26, extrusion block; 27, extrusion rod; 28, tension spring; 29, spring; 30, moving block; 31, positioning rod; 32, positioning hole; 33, pressing block; 34, sliding groove; 35, first one-way valve; 36, second one-way valve; 37, one-way pressure valve. Detailed implementation manner

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figure 1 - Figure 10 as shown in

[0037] Embodiment 1:

[0038] An unmanned aerial vehicle motor with high heat dissipation efficiency, including a bottom plate 1, a casing 2, a stator 3, a rotor 4 and an output shaft 5. The bottom plate 1 is located at the bottom of the casing 2. The stator 3 is fixedly installed on the top of the bottom plate 1. The rotor 4 is arranged inside the stator 3. The top of the rotor 4 is fixedly connected to the bottom of the output shaft 5. The surface of the output shaft 5 is rotationally connected to the inner wall of the casing 2 through a bearing. U-shaped blocks 6 are fixedly connected to both sides of the casing 2. A clamping block 7 that cooperates with the U-shaped block 6 is fixedly installed on the top of the bottom plate 1. A disassembly mechanism is arranged inside the clamping block 7. Four positioning blocks 8 are fixedly connected inside the casing 2. A rotating block 9 is arranged at the bottom of the positioning block 8. A plurality of fan blades 10 are fixedly connected to the circumferential side of the rotating block 9.

[0039] Cooling mechanism, the cooling mechanism is fixedly arranged on the circumferential side of the casing 2;

[0040] The cooling mechanism includes four refrigeration boxes 11 fixedly arranged on the circumferential side of the casing 2. An intake pipe 12 is fixedly connected to the top of the refrigeration box 11. A micro-refrigerator 13 is fixedly installed on one side of the refrigeration box 11. A connecting pipe 14 is fixedly connected to the other side of the refrigeration box 11. One end of the connecting pipe 14 penetrates into the interior of the casing 2 and is fixedly connected to a transmission box 15. One side of the transmission box 15 is fixedly connected to the inner wall of the casing 2. A conduction pipe 16 is fixedly connected to the bottom of the transmission box 15. The inner wall of the casing 2 is fixedly connected to a compression box 17. The bottom of the conduction pipe 16 is fixedly connected to the top of the compression box 17. A jet pipe 18 is fixedly connected to the bottom of the compression box 17.

[0041] In this embodiment, considering that when the drone motor is working, it needs to continuously drive the propeller to rotate rapidly to ensure the normal flight of the drone. The continuous rotation of the motor will cause the temperature inside the motor to overheat and damage the motor. Therefore, by setting up the cooling mechanism, the micro-refrigerator 13 can be started. The micro-refrigerator 13 will cool the air in the refrigeration box 11. After that, the cold air will enter the compression box 17 through the connecting pipe 14, the transmission box 15 and the conduction pipe 16, and then enter the interior of the casing 2 through the multiple jet pipes 18. The cold air is used to dissipate the heat inside the motor, avoiding malfunctions due to overheating inside the motor.

[0042] The transmission box 15, the conduction pipe 16 and the compression box 17 are all made of heat-conducting materials.

[0043] In this embodiment, the materials of the transmission box 15, the conduction pipe 16 and the compression box 17 can be aluminum. When the temperature inside the motor rises, heat conduction will occur, absorbing the heat inside the motor. Then, when the cold air passes through the transmission box 15, the conduction pipe 16 and the compression box 17, it will cool them down and take away the heat in the transmission box 15, the conduction pipe 16 and the compression box 17, achieving the effect of cooling.

[0044] Embodiment Two:

[0045] On the basis of Embodiment One, in this embodiment, the cooling mechanism can transmit cold air into the interior of the casing 2 to achieve the effect of dissipating the heat inside the motor through the cold air. However, considering that if the cold air cannot be evenly distributed in the interior of the casing 2, it will also affect the heat dissipation effect. At the same time, if the heat generated by the motor itself cannot be effectively discharged, it will also affect the heat dissipation effect. In this application, the heat dissipation mechanism is fixedly arranged on the circumferential side of the output shaft 5. When the output shaft 5 rotates, the heat dissipation mechanism drives the fan blades 10 to generate wind;

[0046] The heat dissipation mechanism includes a toothed disc 19 fixedly connected to the surface of the output shaft 5. A transmission rod 20 is fixedly connected to the top of the rotating block 9. A gear 21 is fixedly connected to the top of the transmission rod 20. The gear 21 is meshed with the toothed disc 19. A rotating shaft 22 is arranged at the top of the gear 21 and is rotatably connected to the bottom of the positioning block 8 through the rotating shaft 22. An extrusion mechanism is arranged inside the transmission box 15.

[0047] In this embodiment, by setting the heat dissipation mechanism, when the rotor 4 in the motor drives the output shaft 5 to rotate, the toothed disc 19 will rotate synchronously with the output shaft 5, and at the same time drive the gear 21 to rotate around the rotating shaft 22. The gear 21 will drive the transmission rod 20, the rotating block 9 and the fan blade 10 to rotate. The rotation of the fan blade 10 will generate wind force. Under the action of the wind force, the cold air will be evenly dispersed inside the machine shell 2. At the same time, the wind force will also blow out the heat energy generated by the motor from the inside of the machine shell 2, improving the heat dissipation effect.

[0048] Embodiment Three:

[0049] The extrusion mechanism includes a piston plate 23 slidably connected inside the transmission box 15. A push plate 24 is fixedly connected to one side of the piston plate 23. A push rod 25 is fixedly connected to one side of the push plate 24. One end of the push rod 25 penetrates to one side of the transmission box 15 and is fixedly connected with an extrusion block 26. An extrusion rod 27 used in cooperation with the extrusion block 26 is fixedly connected to the surface of the transmission rod 20. A tension spring 28 is sleeved on the surface of the extrusion rod 27. One end of the tension spring 28 is fixedly connected to the inner wall of the transmission box 15, and the other end of the tension spring 28 is fixedly connected to one side of the push plate 24.

[0050] In this embodiment, by setting the extrusion mechanism, when the transmission rod 20 rotates, it will drive the extrusion rod 27 to rotate. As Figure 9 shown, when the spherical part of the extrusion rod 27 presses against the slope part of the extrusion block 26, affected by the extrusion, the extrusion block 26 will drive the push plate 24 and the piston plate 23 to move to the side away from the tension spring 28. The cold air in the transmission box 15 will quickly enter the compression box 17 through the transmission pipe 16. When the extrusion rod 27 rotates to not contact the extrusion block 26, the pulling force generated by the tension spring 28 will drive the push plate 24 and the piston plate 23 to reset. At this time, the pressure in the transmission box 15 is negative pressure, and new air will enter the inside of the refrigeration box 11 through the air inlet pipe 12 for refrigeration, and then enter the transmission box 15 through the connecting pipe 14, and cycle in turn, intermittently compressing the gas into the compression box 17. When the air pressure in the compression box 17 is greater than the limit of the one-way pressure valve 37, the gas will be ejected from the spray pipe 18. The aperture of the spray pipe 18 is designed in a form of gradually decreasing from large to small. The spraying speed of the gas will gradually increase when it is ejected, and finally it will be sprayed onto the stator 3 inside the machine shell 2. On the one hand, it enables the cold air to quickly contact the heat source, and at the same time, the cold air spray can also disperse and discharge the heat energy generated by the stator 3, further improving the heat dissipation effect.

[0051] It should be noted that Figure 9 Among them, S1 is the moving track of the extrusion rod 27, and S2 is the track of the extrusion block 26 after being extruded.

[0052] Both sides of the extrusion block 26 are in the shape of a slope, and one end of the extrusion rod 27 is spherical.

[0053] In this embodiment, by setting the extrusion block 26 and the extrusion rod 27, when the spherical part contacts the slope part of the extrusion block 26 during the rotation of the extrusion rod 27, the extrusion block 26 will drive the push plate 24 and the piston plate 23 to move to the side away from the tension spring 28 under the influence of extrusion, playing a role in transmission.

[0054] A first one-way valve 35 is fixedly installed on the surface of the air inlet pipe 12, and a second one-way valve 36 is fixedly installed on the surface of the transfer pipe 16.

[0055] In this embodiment, the first one-way valve 35 is a valve that can only intake air into the refrigeration box 11, and the second one-way valve 36 is a valve that can only transmit gas to the compression box 17. When the transfer box 15 is in negative pressure, the gas will enter the interior of the refrigeration box 11 through the air inlet pipe 12, and then enter the transfer box 15 through the connecting pipe 14. When the gas in the transfer box 15 is squeezed, the gas in the transfer box 15 will be transmitted to the interior of the compression box 17.

[0056] The number of the air jet pipes 18 is several, and a one-way pressure valve 37 is fixedly installed on the surface.

[0057] In this embodiment, by setting the one-way pressure valve 37, when the gas enters the compression box 17, it will not be directly discharged from the air jet pipe 18, but will be quickly ejected from the air jet pipe 18 after the air pressure reaches the limit of the one-way pressure valve 37. Through the gushing of the gas, the heat dissipation effect can be improved.

[0058] Embodiment 4:

[0059] On the basis of Embodiments 1, 2, and 3, in this embodiment, the cooling mechanism, the heat dissipation mechanism, and the extrusion mechanism can improve the heat dissipation effect of the motor and prevent the motor from being damaged due to overheating. However, when repairing the existing UAV motor, the housing 2 needs to be removed. Removing the housing 2 requires a series of tools such as a screwdriver. If the user does not carry them, it cannot be disassembled, causing inconvenience in maintenance. In this application, the disassembly mechanism includes a spring 29 arranged inside the block 7. Both ends of the spring 29 are fixedly connected with a moving block 30. The end of the moving block 30 away from the spring 29 is fixedly connected with a positioning rod 31. One end of the positioning rod 31 penetrates to the outside of the block 7. Positioning holes 32 are respectively opened on both sides of the U-shaped block 6 and are used in cooperation with the positioning rod 31.

[0060] In this embodiment, by setting a disassembly mechanism, when the motor needs to be overhauled, two pressing blocks 33 can be pushed towards the side where they are close to each other. The pressing blocks 33 will drive the moving block 30 to move along the track of the sliding groove 34. The positioning rod 31 will move synchronously with the moving block 30, so that the positioning rod 31 leaves the inside of the positioning hole 32, releasing the restriction on the U-shaped block 6. At this time, moving the housing 2 upward can separate the housing 2 from the bottom plate 1, thus facilitating the overhaul of the motor. After the overhaul is completed, by aligning the position of the clamping block 7 with the U-shaped block 6 and pushing the housing 2 downward, the clamping block 7 enters the inside of the U-shaped block 6. Then, releasing the pressing block 33, the elastic force generated by the spring 29 will push the moving block 30 to move towards the side away from the spring 29. The moving block 30 will drive the positioning rod 31 to enter the inside of the positioning hole 32, completing the fixation of the U-shaped block 6, and further completing the connection between the bottom plate 1 and the housing 2, and the motor can be used normally.

[0061] The top of the moving block 30 is fixedly connected with a pressing block 33, and a sliding groove 34 for cooperating with the pressing block 33 is opened at the top of the clamping block 7.

[0062] In this embodiment, by setting the pressing block 33 and the sliding groove 34, the moving tracks of the moving block 30 and the positioning rod 31 can be restricted, so that they can only move horizontally along the track of the sliding groove 34, and at the same time, the stability during their movement can be improved.

[0063] Working principle: When the motor needs to be cooled, by starting the micro cooler 13, the micro cooler 13 will cool the air in the refrigeration box 11. After that, the cold air will enter the inside of the compression box 17 through the connecting pipe 14, the transmission box 15 and the conduction pipe 16, and then enter the inside of the housing 2 through a plurality of air jet pipes 18, and the inside of the motor is cooled by the cold air to prevent the motor from malfunctioning due to overheating;

[0064] When the rotor 4 in the motor drives the output shaft 5 to rotate, the toothed disc 19 will rotate synchronously with the output shaft 5, and at the same time drive the gear 21 to rotate around the rotating shaft 22. The gear 21 will drive the transmission rod 20, the rotating block 9 and the fan blade 10 to rotate. The rotation of the fan blade 10 will generate wind power. Under the action of the wind power, the cold air will be evenly dispersed inside the housing 2. At the same time, the wind power will also blow the heat energy generated by the motor out of the inside of the housing 2, improving the cooling effect;

[0065] When the rotor 4 in the motor drives the output shaft 5 to rotate, the toothed disc 19 will rotate synchronously with the output shaft 5, and at the same time drive the gear 21 to rotate around the rotating shaft 22. The gear 21 will drive the transmission rod 20, the rotating block 9 and the fan blade 10 to rotate. The rotation of the fan blade 10 will generate wind power. Under the action of the wind power, the cold air will be evenly dispersed inside the housing 2. At the same time, the wind power will also blow the heat energy generated by the motor out of the inside of the housing 2, improving the cooling effect;

[0066] When the transmission rod 20 rotates, the extrusion rod 27 is driven to rotate. Figure 9 As shown, when the spherical part of the extrusion rod 27 is squeezed to the slope part of the extrusion block 26, the extrusion block 26 will drive the push plate 24 and the piston plate 23 to move to the side away from the tension spring 28 under the influence of the extrusion, and the cold air in the transmission box 15 will quickly enter the interior of the compression box 17 through the conduction pipe 16. When the extrusion rod 27 rotates to no longer contact the extrusion block 26, the tension generated by the tension spring 28 will drive the push plate 24 and the piston plate 23 to reset. At this time, the transmission box 15 is under negative pressure, and new air will enter the interior of the refrigeration box 11 through the air inlet pipe 12 to produce cold air. The air is then cooled and enters the transmission box 15 through the connecting pipe 14, circulates in sequence, and intermittently compresses the gas into the compression box 17. When the air pressure in the compression box 17 exceeds the limit of the one-way pressure valve 37, the gas will be ejected from the jet pipe 18. The aperture of the jet pipe 18 is designed in a form of large to small. The speed of the gas ejection will gradually increase, and finally it will be ejected onto the stator 3 in the casing 2. On the one hand, the cold air can quickly contact the heat source, and at the same time, the cold air ejection can also dissipate the heat energy generated by the stator 3, further improving the heat dissipation effect.

[0067] At the same time, considering that the existing UAV motor fault repair needs to remove the casing 2, the removal of the casing 2 requires the use of a series of tools such as a screwdriver. If the user does not carry it, it is impossible to disassemble it, causing inconvenience in maintenance. When the motor needs to be repaired, the two pressing blocks 33 can be pushed toward each other. The pressing block 33 will drive the moving block 30 to move along the track of the sliding groove 34, and the positioning rod 31 will move the moving block 30 synchronously, so that the positioning rod 31 leaves the inside of the positioning hole 32, releasing the restriction on the U-shaped block 6. At this time, By moving the casing 2 upward, the casing 2 can be separated from the base plate 1, thereby facilitating the maintenance of the motor. When the maintenance is completed, the casing 2 is pushed downward by aligning the position of the block 7 and the U-shaped block 6, so that the block 7 enters the interior of the U-shaped block 6, and then the pressing block 33 is released. The elastic force generated by the spring 29 will push the moving block 30 to the side away from the spring 29, and the moving block 30 will drive the positioning rod 31 to enter the interior of the positioning hole 32, completing the fixation of the U-shaped block 6, and then completing the connection between the base plate 1 and the casing 2, and the motor can be used normally.

[0068] It should be noted that the micro-refrigerator 13, the first one-way valve 35, the second one-way valve 36 and the one-way pressure valve 37 are devices or equipment that exist in the prior art, or are devices or equipment that can be realized in the prior art, and the specific composition and principle of the power supply of the micro-refrigerator 13, the first one-way valve 35, the second one-way valve 36 and the one-way pressure valve 37 are clear to those skilled in the art, so they will not be described in detail.

[0069] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0070] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle motor with high heat dissipation efficiency, comprising a bottom plate (1), a housing (2), a stator (3), a rotor (4) and an output shaft (5). The bottom plate (1) is located at the bottom of the housing (2). The stator (3) is fixedly installed on the top of the bottom plate (1). The rotor (4) is arranged inside the stator (3). The top of the rotor (4) is fixedly connected to the bottom of the output shaft (5). The surface of the output shaft (5) is rotationally connected to the inner wall of the housing (2) through a bearing. It is characterized in that: Both sides of the casing (2) are fixedly connected with U-shaped blocks (6). A clamping block (7) that cooperates with the U-shaped block (6) is fixedly installed on the top of the bottom plate (1). A disassembly mechanism is arranged inside the clamping block (7). Four positioning blocks (8) are fixedly connected inside the casing (2). A rotating block (9) is arranged at the bottom of the positioning block (8). A plurality of fan blades (10) are fixedly connected to the circumferential side of the rotating block (9).

2. The high heat dissipation efficiency drone motor according to claim 1, wherein: It further includes a cooling mechanism, which is fixedly arranged on the circumferential side of the casing (2); The cooling mechanism includes four refrigerating boxes (11) fixedly arranged on the circumferential side of the casing (2). An air inlet pipe (12) is fixedly communicated with the top of the refrigerating box (11). A micro-refrigerator (13) is fixedly installed on one side of the refrigerating box (11). A connecting pipe (14) is fixedly communicated with the other side of the refrigerating box (11). One end of the connecting pipe (14) penetrates into the inside of the casing (2) and is fixedly communicated with a transmission box (15). One side of the transmission box (15) is fixedly connected with the inner wall of the casing (2). A conveying pipe (16) is fixedly communicated with the bottom of the transmission box (15). A compression box (17) is fixedly connected to the inner wall of the casing (2). The bottom of the conveying pipe (16) is fixedly communicated with the top of the compression box (17). An air spraying pipe (18) is fixedly communicated with the bottom of the compression box (17).

3. The UAV motor with high heat dissipation efficiency according to claim 2, characterized in that: It further includes a heat dissipation mechanism, which is fixedly arranged on the circumferential side of the output shaft (5). When the output shaft (5) rotates, the heat dissipation mechanism drives the fan blades (10) to generate wind; The heat dissipation mechanism includes a toothed disc (19) fixedly connected to the surface of the output shaft (5). A transmission rod (20) is fixedly connected to the top of the rotating block (9). A gear (21) is fixedly connected to the top of the transmission rod (20). The gear (21) is meshed with the toothed disc (19). A rotating shaft (22) is arranged at the top of the gear (21) and is rotatably connected to the bottom of the positioning block (8) through the rotating shaft (22). An extrusion mechanism is arranged inside the transmission box (15).

4. The high heat dissipation efficiency drone motor according to claim 3, characterized in that: The extrusion mechanism includes a piston plate (23) slidably connected inside the transmission box (15). A push plate (24) is fixedly connected to one side of the piston plate (23). A push rod (25) is fixedly connected to one side of the push plate (24). One end of the push rod (25) penetrates to one side of the transmission box (15) and is fixedly connected with an extrusion block (26). An extrusion rod (27) that cooperates with the extrusion block (26) is fixedly connected to the surface of the transmission rod (20). A tension spring (28) is sleeved on the surface of the extrusion rod (27). One end of the tension spring (28) is fixedly connected with the inner wall of the transmission box (15). The other end of the tension spring (28) is fixedly connected with one side of the push plate (24).

5. The drone motor with high heat dissipation efficiency according to claim 1, characterized in that: The disassembly mechanism comprises a spring (29) arranged inside the clamping block (7), both ends of the spring (29) are fixedly connected to a moving block (30), one end of the moving block (30) away from the spring (29) is fixedly connected to a positioning rod (31), one end of the positioning rod (31) passes through the outside of the clamping block (7), and both sides of the U-shaped block (6) are provided with positioning holes (32) used in conjunction with the positioning rod (31).

6. The high heat dissipation efficiency drone motor according to claim 5, characterized in that: The top of the moving block (30) is fixedly connected to a pressing block (33), and the top of the clamping block (7) is provided with a sliding groove (34) used in conjunction with the pressing block (33).

7. The UAV motor with high heat dissipation efficiency according to claim 4, characterized in that: Both sides of the extrusion block (26) are sloped, and one end of the extrusion rod (27) is spherical.

8. The UAV motor with high heat dissipation efficiency according to claim 4, characterized in that: A first one-way valve (35) is fixedly mounted on the surface of the air inlet pipe (12), and a second one-way valve (36) is fixedly mounted on the surface of the conduction pipe (16).

9. The UAV motor with high heat dissipation efficiency according to claim 2, characterized in that: The number of the air jet pipes (18) is several, and a one-way pressure valve (37) is fixedly installed on the surface.

10. The UAV motor with high heat dissipation efficiency according to claim 2, characterized in that: The transmission box (15), the conduction pipe (16) and the compression box (17) are all made of heat-conducting materials.

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