Multi-rotor unmanned aerial vehicle motor with waterproof function

Abstract

The application discloses a waterproof multi-rotor unmanned aerial vehicle motor, and relates to the technical field of motors. The waterproof multi-rotor unmanned aerial vehicle motor comprises a protective shell, a power source and a bearing assembly, the bearing assembly comprises a threaded column and a bearing pallet, the top end of the threaded column is fixedly connected with the side of the bottom of the protective shell, the bearing pallet is sleeved on the surface of the threaded column through a round hole, the top of the bearing pallet is fixedly connected with a rectangular sealing gasket, a locking nut is fixedly installed on the surface of the threaded column in a threaded mode, an annular tapered inclined surface is formed in the center of the bottom of the locking nut, a fastening nut is fixedly installed on the bottom of the surface of the threaded column in a threaded mode, the top of the fastening nut is fixedly connected with a tapered elastic sheet, a V-shaped notch is formed in the surface of the tapered elastic sheet, and the tapered elastic sheet is embedded in the V-shaped notch. The waterproof multi-rotor unmanned aerial vehicle motor has the waterproof function, is not prone to short circuit and burning, can weaken noise propagation, and has stable transmission, energy saving, safety and reliability.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a waterproof multi-rotor drone motor. Background Technology

[0002] In recent years, with the continuous development of science and technology and the rapid progress of society, multi-rotor drones have been vigorously developed and widely used. A multi-rotor drone is a special type of unmanned helicopter with three or more rotor shafts. An electric motor is an electromagnetic device that converts electrical energy into mechanical energy based on the law of electromagnetic induction. The main function of an electric motor is to generate driving torque. As a power source for electrical appliances and various machines, the primary function of an electric motor is to convert electrical energy into mechanical energy. The electric motor is one of the most important components of a multi-rotor drone. Therefore, the quality of the electric motor determines whether the multi-rotor drone can function properly.

[0003] Currently, traditional multi-rotor drone motors are not waterproof, making them prone to contact with external water. This can lead to damage to the internal circuitry due to water corrosion during operation, reducing the motor's lifespan and, in severe cases, causing damage between motors and affecting the normal use of the multi-rotor drone. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A waterproof multi-rotor drone motor includes:

[0006] A protective housing and a power source installed inside the protective housing, wherein a top cover is fixedly installed on the top of the protective housing and blades are fixedly connected to the outer circular surface of the output shaft of the power source;

[0007] As the power source operates, its output shaft drives the blades to rotate. The rotation of the blades agitates the air inside the protective casing, accelerating the gas flow and cooling the power source. This prevents the power source from overheating and extends its service life.

[0008] A support assembly for further mounting the power source and sealing the bottom of the protective housing; the support assembly is mounted on the bottom of the protective housing.

[0009] The load-bearing assembly includes a threaded post and a load-bearing plate. The top of the threaded post is fixedly connected to the side of the bottom of the protective housing. The load-bearing plate is fitted onto the surface of the threaded post through a circular hole. A rectangular sealing gasket is fixedly connected to the top of the load-bearing plate. A locking nut is threadedly fixedly installed on the surface of the threaded post. An annular conical bevel is formed at the center of the bottom of the locking nut. A fastening nut is threadedly fixedly installed on the bottom of the surface of the threaded post. A conical elastic plate is fixedly connected to the top of the fastening nut. A V-shaped notch is formed on the surface of the conical elastic plate. The elastic plate is embedded inside the V-shaped notch. The bearing plate is sleeved on the surface of the threaded column through the round hole. The locking nut is first engaged with the threaded column to initially fix the bearing plate. Then, the fastening nut is engaged with the threaded column to tighten it again, thus fixing the bearing plate. The bottom of the protective shell is sealed, and the rectangular sealing gasket is compressed to seal it. The top cover is installed on the top of the protective shell, so that the power source is in a closed space, which makes it difficult for external water to enter the interior. It has a waterproof function and makes the power source less prone to damage.

[0010] Preferably, the top cover is installed directly above the protective housing, the output shaft of the power source passes through the inner wall of the protective housing and extends to its outside, the blades are arc-shaped, there are three blades, and the three blades are evenly distributed on the outer circular surface of the power source output shaft.

[0011] The locking nut and fastening nut are threaded onto the threaded post, allowing the conical elastic plate to embed into the interior of the annular conical inclined surface. Under the compression of the fastening nut, and with a V-shaped notch on the surface of the conical elastic plate, the conical elastic plate undergoes elastic deformation under the compression force. This allows the conical elastic plate to apply an elastic pushing force to the locking nut, thus achieving self-locking and preventing the locking nut from loosening.

[0012] Preferably, the threaded posts are installed vertically, there are four threaded posts, and the four threaded posts are evenly distributed on the side of the bottom of the protective shell, and the bearing plate is installed directly below the protective shell.

[0013] By fixing the load-bearing plate with locking nuts and fastening nuts, and combining this with the power source being installed on the load-bearing plate, the load-bearing plate can stably support the power source, thus preventing shaking when the power source is not in operation and ensuring overall stable operation of the power source.

[0014] Preferably, the rectangular sealing gasket is made of rubber, the fastening nut is installed directly below the locking nut, the surface of the conical elastic sheet is in contact with the inner side of the V-shaped notch, and the V-shaped notch is evenly distributed on the surface of the conical elastic sheet.

[0015] Preferably, a noise reduction component is installed inside the protective shell, and the noise reduction component is mounted around the surface of the power source. The noise reduction component includes a rectangular sound insulation frame, the outer side of which is fixedly connected to the inner side of the protective shell, and the power source is installed in the middle of the rectangular sound insulation frame. A long strip trapezoidal opening plate is fixedly connected to the inner wall of the rectangular sound insulation frame, and a long strip V-shaped plate is fixedly connected to the inner wall of the long strip trapezoidal opening plate. A rectangular hole is formed on the surface of the long strip V-shaped plate, and a first curled plate is fixedly connected to the inner wall of the long strip trapezoidal opening plate. A second coiled plate is fixedly connected to the inner wall of the elongated trapezoidal opening plate on the side away from the first coiled plate. When the power source is running, the noise generated by the power source propagates. The noise can be reflected by contacting the elongated trapezoidal opening plate and the elongated V-shaped plate, changing the noise propagation path and reducing the noise propagation. In addition, the elongated trapezoidal opening plates are evenly distributed on the inner side of the rectangular sound insulation frame, and the openings of the elongated trapezoidal opening plates face the center of the rectangular sound insulation frame. This increases the noise receiving area of ​​the evenly distributed elongated trapezoidal opening plates and reflects the noise.

[0016] Preferably, the elongated trapezoidal openings are evenly distributed on the inner side of the rectangular soundproof frame, and the openings of the elongated trapezoidal openings face the center of the rectangular soundproof frame. Both the elongated trapezoidal openings and the elongated V-shaped plates are installed vertically.

[0017] Noise enters the space formed by the rectangular hole and the long trapezoidal opening plate and the long V-shaped plate. By utilizing the fact that both the first and second rolled plates are rolled surfaces, the noise can be guided, causing it to propagate in a rolled shape towards the interior of the first and second rolled plates, thereby weakening the propagation energy of the noise. Furthermore, the rectangular soundproof frame covering the outside of the power source can absorb sound again.

[0018] Preferably, the rectangular holes are uniformly formed on the surface of the elongated V-shaped plate, and the curling directions of the first and second curled sheets are opposite.

[0019] Preferably, a connecting module is mounted on the surface of the power source output shaft. The connecting module includes an I-shaped connecting shaft and a support leg. The I-shaped connecting shaft is fixedly installed to the end face of the power source output shaft by screws. Both the outer circular surface of the I-shaped connecting shaft and the outer circular surface of the power source output shaft have circular guide grooves. A semi-circular sleeve is fixedly connected to the top of the support leg. A ball bearing is rolled on the inner side of the semi-circular sleeve. The ball bearing and the circular guide groove are installed at the same height. A connecting block is fixedly connected to the side of the surface of the semi-circular sleeve. The connection is achieved through two opposing... The semi-circular ferrule engages with the outer surface of the I-shaped connecting shaft and the outer surface of the power source output shaft. Secured by screws, the I-shaped connecting shaft and the power source output shaft are connected, facilitating the transmission of kinetic energy. Furthermore, the ball bearings, in contact with the inner surface of the circular guide groove, allow the power source output shaft to drive the I-shaped connecting shaft to rotate. This rolling friction reduces frictional resistance, ensuring smooth rotation of the I-shaped connecting shaft without jamming, thus minimizing energy loss and achieving energy-saving effects.

[0020] Preferably, the I-shaped connecting shaft and the output shaft of the power source are installed at the same height, and there are two semi-circular sleeves, which are symmetrically installed along the central axis at the middle of the I-shaped connecting shaft.

[0021] Preferably, the balls are evenly distributed on the inner side of the semi-circular sleeve, the spherical surface of the outer side of the balls fits against the inner side of the circular guide groove, and there are four connecting blocks, which are evenly distributed on the surface of the semi-circular sleeve.

[0022] This invention provides a waterproof multi-rotor drone motor. It offers the following advantages:

[0023] 1. This waterproof multi-rotor drone motor is mounted on a threaded post via a round hole using a support plate. A locking nut is first engaged with the threaded post to initially secure the support plate. Then, a tightening nut is engaged with the threaded post for further tightening, thus securing the support plate and sealing the bottom of the protective shell. The rectangular sealing gasket is compressed to create a seal. A top cover is installed on top of the protective shell, placing the power source within a closed space, preventing external water from entering and providing waterproofing, thus reducing the risk of damage to the power source.

[0024] Second, the waterproof multi-rotor drone motor is threaded onto a threaded post via a locking nut and a fastening nut. This allows a conical elastic plate to be embedded inside the annular conical inclined surface. Under the pressure of the fastening nut, and combined with a V-shaped notch on the surface of the conical elastic plate, the conical elastic plate undergoes elastic deformation under pressure. This allows the conical elastic plate to apply an elastic pushing force to the locking nut, thus achieving self-locking and preventing the locking nut from loosening.

[0025] Third, the waterproof multi-rotor drone motor is fixed to the support plate by locking nuts and fastening nuts, and the power source is installed on the support plate. This makes the support plate support the power source stably, so that it is not easy to shake when it is not running or working, thus making the overall operation of the power source stable.

[0026] Fourth, the waterproof multi-rotor drone motor utilizes the contact between noise and long, trapezoidal openings and long, V-shaped plates to reflect the noise, altering its propagation path and reducing its spread. Furthermore, the evenly distributed long, trapezoidal openings on the inner side of the rectangular soundproof frame, with their openings facing the center of the frame, increase the noise-receiving area and reflect the noise.

[0027] Fifth, the waterproof multi-rotor drone motor allows noise to enter through a rectangular hole into the space formed by the long trapezoidal opening plate and the long V-shaped plate. By utilizing the fact that both the first and second rolled plates are rolled surfaces, the noise can be guided, causing it to propagate in a rolled shape towards the interior of the first and second rolled plates, thereby weakening the propagation energy of the noise. Furthermore, the rectangular soundproof frame covering the outside of the power source can absorb sound again, reducing the propagation of noise.

[0028] VI. This waterproof multi-rotor drone motor uses a semi-circular clamp to connect the I-shaped connecting shaft and the output shaft of the power source. With the screws in place, the I-shaped connecting shaft and the output shaft of the power source can be connected for easy transmission of kinetic energy. By using the ball bearings to fit against the inner side of the circular guide groove, when the output shaft of the power source drives the I-shaped connecting shaft to rotate, the ball bearings roll, using rolling friction to reduce frictional resistance. This makes the rotation of the I-shaped connecting shaft by the output shaft of the power source smooth and less prone to jamming, reducing power loss and achieving energy saving.

[0029] 7. The waterproof multi-rotor drone motor, as the power source operates, allows the output shaft of the power source to drive the blades to rotate. The rotation of the blades can fan the air inside the protective shell, accelerate the air flow, and cool the power source, making it less prone to high temperatures and extending the service life of the power source. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the waterproof multi-rotor drone motor of the present invention;

[0031] Figure 2 This is a schematic diagram of the disassembled structure of the waterproof multi-rotor drone motor of the present invention;

[0032] Figure 3 This is a schematic diagram of the connection structure between the load-bearing component and the protective shell of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall disassembled structure of the load-bearing component of the present invention;

[0034] Figure 5 This is a schematic diagram of the overall structure of the load-bearing component of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection structure between the protective shells of the noise reduction components of the present invention;

[0036] Figure 7 For the present invention Figure 6 Enlarged view of a portion of point A in the middle;

[0037] Figure 8 This is a schematic diagram of the overall structure of the connection module of the present invention.

[0038] In the diagram: 1. Protective outer shell; 2. Power source; 3. Top cover; 4. Blade; 5. Load-bearing component; 6. Noise reduction component; 7. Connecting module; 51. Threaded column; 52. Load-bearing support plate; 53. Rectangular sealing gasket; 54. Locking nut; 55. Annular conical bevel; 56. Fastening nut; 57. Conical elastic plate; 58. V-shaped notch; 61. Rectangular sound insulation frame; 62. Long strip trapezoidal opening plate; 63. Long strip V-shaped plate; 64. Rectangular hole; 65. First curled plate; 66. Second curled plate; 71. I-shaped connecting shaft; 72. Support leg; 73. Circular guide rail groove; 74. Semi-circular ferrule; 75. Ball bearing; 76. Connecting block. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0040] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution:

[0041] A waterproof multi-rotor drone motor includes:

[0042] The protective housing 1 and the power source 2 installed inside the protective housing 1, the top cover 3 is fixedly installed on the top of the protective housing 1, and the blade 4 is fixedly connected to the outer circular surface of the output shaft of the power source 2.

[0043] As the power source 2 operates, its output shaft drives the blades 4 to rotate. The rotation of the blades 4 fans the air inside the protective shell 1, accelerating the flow of gas and cooling the power source 2. This prevents the power source 2 from overheating and extends its service life.

[0044] The top cover 3 is installed directly above the protective housing 1. The output shaft of the power source 2 passes through the inner wall of the protective housing 1 and extends to its outside. The blades 4 are arc-shaped, and there are three blades 4, which are evenly distributed on the outer circular surface of the output shaft of the power source 2.

[0045] The support component 5 is used to continue the installation of the power source 2 and to seal the bottom of the protective housing 1. The support component 5 is installed at the bottom of the protective housing 1.

[0046] The supporting component 5 includes a threaded post 51 and a supporting plate 52. The top of the threaded post 51 is fixedly connected to the side of the bottom of the protective housing 1. The supporting plate 52 is fitted onto the surface of the threaded post 51 through a round hole. A rectangular sealing gasket 53 is fixedly connected to the top of the supporting plate 52. A locking nut 54 is threadedly fixedly installed on the surface of the threaded post 51. An annular conical inclined surface 55 is provided at the center of the bottom of the locking nut 54. A fastening nut 56 is threadedly fixedly installed at the bottom of the surface of the threaded post 51. A conical elastic plate 57 is fixedly connected to the top of the fastening nut 56. A V-shaped notch 58 is provided on the surface of the conical elastic plate 57. Embedded inside the V-shaped notch 58, the bearing plate 52 is fitted onto the surface of the threaded post 51 through the round hole. The locking nut 54 is first threaded into the threaded post 51 to initially fix the bearing plate 52. Then, the fastening nut 56 is threaded into the threaded post 51 to further tighten it, thus fixing the bearing plate 52 and sealing the bottom of the protective shell 1. The rectangular sealing gasket 53 is compressed to seal it. The top cover 3 is installed on the top of the protective shell 1, so that the power source 2 is in a closed space, making it difficult for external water to enter the interior. It has a waterproof function, making the power source 2 less prone to damage.

[0047] The threaded posts 51 are installed vertically. There are four threaded posts 51, and the four threaded posts 51 are evenly distributed on the side of the bottom of the protective shell 1. The bearing plate 52 is installed directly below the protective shell 1.

[0048] The locking nut 54 and fastening nut 56 are threaded onto the threaded post 51, allowing the conical elastic plate 57 to be embedded inside the annular conical inclined surface 55. Under the compression of the fastening nut 56, and with a V-shaped notch 58 on the surface of the conical elastic plate 57, the conical elastic plate 57 can undergo elastic deformation after being subjected to compression. This allows the conical elastic plate 57 to apply an elastic pushing force to the locking nut 54, thus achieving self-locking and preventing the locking nut 54 from loosening.

[0049] The rectangular sealing gasket 53 is made of rubber. The fastening nut 56 is installed directly below the locking nut 54. The surface of the conical elastic plate 57 fits against the inner side of the V-shaped notch 58. The V-shaped notch 58 is evenly distributed on the surface of the conical elastic plate 57. The support plate 52 is fixed by the locking nut 54 and the fastening nut 56. Combined with the power source 2 being installed on the support plate 52, the support plate 52 can support the power source 2 stably. This ensures that the power source 2 can operate stably when it is not in operation.

[0050] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 7 As shown:

[0051] A noise reduction component 6 is installed inside the protective shell 1, and the noise reduction component 6 is installed around the surface of the power source 2. The noise reduction component 6 includes a rectangular sound insulation frame 61. The outer side of the rectangular sound insulation frame 61 is fixedly connected to the inner side of the protective shell 1, and the power source 2 is installed in the middle of the rectangular sound insulation frame 61. A long strip trapezoidal opening plate 62 is fixedly connected to the inner wall of the rectangular sound insulation frame 61. A long strip V-shaped plate 63 is fixedly connected to the inner wall of the long strip trapezoidal opening plate 62. A rectangular hole 64 is opened on the surface of the long strip V-shaped plate 63. A first curled plate 65 is fixedly connected to the inner wall of the long strip trapezoidal opening plate 62. A second curved plate 66 is fixedly connected to the inner wall of the mouth plate 62 on the side away from the first curved plate 65. When the power source 2 is running, the noise generated by the power source 2 is propagated. The noise can be reflected by contacting the long strip trapezoidal opening plate 62 and the long strip V-shaped plate 63, which changes the noise propagation path and reduces the noise propagation. In addition, the long strip trapezoidal opening plates 62 are evenly distributed on the inner side of the rectangular sound insulation frame 61, and the openings of the long strip trapezoidal opening plates 62 face the center of the rectangular sound insulation frame 61. This increases the noise receiving area of ​​the evenly distributed long strip trapezoidal opening plates 62 and reflects the noise.

[0052] The long, trapezoidal openings 62 are evenly distributed on the inner side of the rectangular sound insulation frame 61, and the openings of the long, trapezoidal openings 62 face the center of the rectangular sound insulation frame 61. Both the long, trapezoidal openings 62 and the long, V-shaped plates 63 are installed vertically.

[0053] Noise enters the space formed by the rectangular hole 64 and the long trapezoidal opening plate 62 and the long V-shaped plate 63. By utilizing the fact that both the first curled plate 65 and the second curled plate 66 are curled surfaces, the noise can be guided, causing the noise to propagate in a curled shape towards the interior of the first curled plate 65 and the interior of the second curled plate 66, thereby weakening the propagation energy of the noise. In addition, the rectangular sound insulation frame 61 covers the outside of the power source 2, further absorbing sound.

[0054] Rectangular holes 64 are evenly distributed on the surface of the elongated V-shaped plate 63, and the first curled plate 65 and the second curled plate 66 are curled in opposite directions.

[0055] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 1 to 8 As shown:

[0056] A connecting module 7 is mounted on the surface of the output shaft of power source 2. The connecting module 7 includes an I-shaped connecting shaft 71 and a support leg 72. The I-shaped connecting shaft 71 is fixedly installed to the end face of the output shaft of power source 2 by screws. Both the outer circular surface of the I-shaped connecting shaft 71 and the outer circular surface of the output shaft of power source 2 are provided with circular guide grooves 73. A semi-circular sleeve 74 is fixedly connected to the top of the support leg 72. A ball bearing 75 is rolled on the inner side of the semi-circular sleeve 74. The ball bearing 75 and the circular guide groove 73 are installed at the same height. A connecting block 76 is fixedly connected to the side of the surface of the semi-circular sleeve 74. Two symmetrical semi-circular sleeves 74 are engaged with the outer circular surfaces of the I-shaped connecting shaft 71 and the output shaft of the power source 2, and fixed with screws, so that the I-shaped connecting shaft 71 and the output shaft of the power source 2 can be connected to facilitate the transmission of kinetic energy. By using the contact between the ball bearings 75 and the inner surface of the circular guide groove 73, when the output shaft of the power source 2 drives the I-shaped connecting shaft 71 to rotate, the ball bearings 75 roll, and the rolling friction reduces the frictional resistance, so that the output shaft of the power source 2 drives the I-shaped connecting shaft 71 to rotate smoothly and is not prone to jamming.

[0057] The I-shaped connecting shaft 71 and the output shaft of the power source 2 are installed at the same height. There are two semi-circular ferrules 74, and the two semi-circular ferrules 74 are symmetrically installed along the central axis at the middle of the I-shaped connecting shaft 71.

[0058] The ball bearings 75 are evenly distributed on the inner side of the semi-circular sleeve 74. The spherical surface of the outer side of the ball bearings 75 fits against the inner side of the circular guide groove 73. There are four connecting blocks 76, and the four connecting blocks 76 are evenly distributed on the surface of the semi-circular sleeve 74.

[0059] In use, first install the protective shell 1 onto the designated position of the multi-rotor drone through the bottom support base, and install the power source 2 inside the protective shell 1, and fix the bottom of the power source 2 to the support plate 52.

[0060] At this time, the bearing plate 52 is sleeved on the surface of the threaded column 51 through the round hole, and the locking nut 54 is first threaded with the threaded column 51 to initially fix the bearing plate 52. Then, the fastening nut 56 is threaded with the threaded column 51 to tighten it again, thus fixing the bearing plate 52 and sealing the bottom of the protective shell 1. The rectangular sealing gasket 53 is squeezed to seal it. The top cover 3 is installed on the top of the protective shell 1, so that the power source 2 is in a closed space, and external water is not easy to enter the interior, which has a waterproof function and makes the power source 2 less likely to be damaged.

[0061] Simultaneously, the locking nut 54 and the fastening nut 56 are threaded onto the threaded post 51, allowing the conical elastic plate 57 to be embedded inside the annular conical inclined surface 55. Under the compression of the fastening nut 56, and combined with the V-shaped notch 58 on the surface of the conical elastic plate 57, the conical elastic plate 57 can undergo elastic deformation after being subjected to compressive force. This allows the conical elastic plate 57 to apply an elastic pushing force to the locking nut 54, thus achieving self-locking and preventing the locking nut 54 from loosening.

[0062] Furthermore, two symmetrical semi-circular sleeves 74 are engaged with the outer circular surface of the I-shaped connecting shaft 71 and the outer circular surface of the output shaft of the power source 2, and fixed with screws, so that the I-shaped connecting shaft 71 and the output shaft of the power source 2 can be connected to facilitate the transmission of kinetic energy. Moreover, by using the ball bearings 75 to fit against the inner side of the circular guide groove 73, when the output shaft of the power source 2 drives the I-shaped connecting shaft 71 to rotate, the ball bearings 75 roll, and the rolling friction reduces the frictional resistance, so that the output shaft of the power source 2 drives the I-shaped connecting shaft 71 to rotate smoothly and is not prone to jamming.

[0063] The bearing plate 52 is fixed by locking nut 54 and fastening nut 56, and the power source 2 is installed on the bearing plate 52, so that the bearing plate 52 supports the power source 2 stably, so that the power source 2 can operate stably when it is not in operation.

[0064] Furthermore, as the power source 2 operates, the noise generated by the power source 2 propagates. The noise can be reflected by contacting the long trapezoidal opening plate 62 and the long V-shaped plate 63, thereby changing the noise propagation path and reducing the noise propagation. In addition, the long trapezoidal opening plates 62 are evenly distributed on the inner side of the rectangular sound insulation frame 61, and the openings of the long trapezoidal opening plates 62 face the center of the rectangular sound insulation frame 61. This increases the noise receiving area of ​​the evenly distributed long trapezoidal opening plates 62 and reflects the noise.

[0065] Noise enters the space formed by the rectangular hole 64 and the long trapezoidal opening plate 62 and the long V-shaped plate 63. By utilizing the fact that both the first curled plate 65 and the second curled plate 66 are curled surfaces, the noise can be guided, causing the noise to propagate in a curled shape towards the interior of the first curled plate 65 and the interior of the second curled plate 66, thereby weakening the propagation energy of the noise. In addition, the rectangular sound insulation frame 61 covers the outside of the power source 2, further absorbing sound.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] 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 multi-rotor unmanned aerial vehicle motor with waterproof function, characterized in that, Include: The protective shell (1), and the power source (2) installed inside the protective shell (1), the top of the protective shell (1) is fixedly installed with a top cover (3), the outer circular surface of the output shaft of the power source (2) is fixedly connected with a blade (4); The bearing assembly (5) is used for continuing to install the power source (2) and blocking the bottom of the protective shell (1), and the bearing assembly (5) is installed at the bottom of the protective shell (1); Wherein, the bearing assembly (5) includes a threaded column (51) and a bearing plate (52), the top end of the threaded column (51) is fixedly connected with the edge side of the bottom of the protective shell (1), the bearing plate (52) is sleeved on the surface of the threaded column (51) through a circular hole, the top of the bearing plate (52) is fixedly connected with a rectangular sealing gasket (53), the surface of the threaded column (51) is fixedly installed with a locking nut (54) in a threaded manner, the bottom center of the locking nut (54) is provided with an annular tapered inclined surface (55), the bottom surface of the threaded column (51) is fixedly installed with a fastening nut (56) in a threaded manner, the top of the fastening nut (56) is fixedly connected with a tapered elastic sheet (57), the surface of the tapered elastic sheet (57) is provided with a V-shaped notch (58), and the tapered elastic sheet (57) is embedded in the V-shaped notch (58); The inner cavity of the protective shell (1) is provided with a noise reduction assembly (6), and the noise reduction assembly (6) is installed around the surface of the power source (2), the noise reduction assembly (6) includes a rectangular sound insulation frame (61), the outer side of the rectangular sound insulation frame (61) is fixedly connected with the inner side of the protective shell (1), and the power source (2) is installed at the middle of the rectangular sound insulation frame (61), the inner wall of the rectangular sound insulation frame (61) is fixedly connected with a long strip-shaped trapezoidal opening plate (62), the inner wall of the long strip-shaped trapezoidal opening plate (62) is fixedly connected with a long strip-shaped V-shaped plate (63), the surface of the long strip-shaped V-shaped plate (63) is provided with a rectangular hole (64), the inner wall of the long strip-shaped trapezoidal opening plate (62) is fixedly connected with a first curling sheet (65), and the inner wall of the long strip-shaped trapezoidal opening plate (62) and away from the first curling sheet (65) is fixedly connected with a second curling sheet (66); The long strip-shaped trapezoidal opening plates (62) are uniformly distributed on the inner side of the rectangular sound insulation frame (61), and the openings of the long strip-shaped trapezoidal opening plates (62) are towards the center of the rectangular sound insulation frame (61), and the long strip-shaped trapezoidal opening plates (62) and the long strip-shaped V-shaped plates (63) are vertically installed; The rectangular holes (64) are uniformly provided on the surface of the long strip-shaped V-shaped plate (63), and the curling directions of the first curling sheet (65) and the second curling sheet (66) are opposite.

2. The waterproof multi-rotor unmanned aerial vehicle motor of claim 1, wherein: The top cover (3) is installed above the protective shell (1), the output shaft of the power source (2) penetrates the inner wall of the protective shell (1) and extends to the outside, the blade (4) is arc-shaped, the blade (4) is three, and the three blades (4) are uniformly distributed at the outer circular surface of the output shaft of the power source (2).

3. The waterproof multi-rotor unmanned aerial vehicle motor of claim 1, wherein: The threaded column (51) is vertically installed, the threaded column (51) is four, and the four threaded columns (51) are uniformly distributed at the side of the bottom of the protective shell (1), and the bearing plate (52) is installed below the protective shell (1).

4. The waterproof multi-rotor unmanned aerial vehicle motor of claim 1, wherein: The material of the rectangular sealing gasket (53) is rubber, the fastening nut (56) is installed below the locking nut (54), the surface of the conical elastic sheet (57) is attached to the inner side of the V-shaped notch (58), and the V-shaped notches (58) are uniformly distributed on the surface of the conical elastic sheet (57).

5. The waterproof multi-rotor unmanned aerial vehicle motor of claim 1, wherein: The surface of the output shaft of the power source (2) is provided with a connecting module (7), the connecting module (7) comprises an I-shaped connecting shaft (71) and a supporting leg (72), the I-shaped connecting shaft (71) is fixedly installed on the end surface of the output shaft of the power source (2) through screws, the outer circular surface of the I-shaped connecting shaft (71) and the outer circular surface of the output shaft of the power source (2) are both provided with a circular guide groove (73), the top end of the supporting leg (72) is fixedly connected with a semicircular clamping sleeve (74), the inner side of the semicircular clamping sleeve (74) is rollingly provided with a ball (75), the ball (75) is installed at the same height as the circular guide groove (73), and the side of the surface of the semicircular clamping sleeve (74) is fixedly connected with a connecting block (76).

6. The waterproof multi-rotor unmanned aerial vehicle motor of claim 5, wherein: The I-shaped connecting shaft (71) and the output shaft of the power source (2) are installed at the same height, the semicircular clamping sleeve (74) is two, and the two semicircular clamping sleeves (74) are symmetrically installed along the central axis of the middle of the I-shaped connecting shaft (71).

7. The waterproof multi-rotor unmanned aerial vehicle motor of claim 5, wherein: The balls (75) are uniformly distributed on the inner side of the semicircular clamping sleeve (74), the outer spherical surface of the ball (75) is attached to the inner side of the circular guide groove (73), and the connecting block (76) is four, and the four connecting blocks (76) are uniformly distributed on the surface of the semicircular clamping sleeve (74).

Images