An outer joint and a drone

Abstract

The utility model discloses an outer joint and unmanned plane, including connecting arm, first mounting seat, two motors, first mounting seat fixed mounting in the end of connecting arm, two motors are installed respectively in the upper end and the lower end of first mounting seat, and the motor includes stator and rotor, and the stator fixed mounting is in first mounting seat, and the rotor is rotatably connected with the stator, and the rotor includes two mounting columns, and two mounting columns are symmetrically set up, and the mounting column is located in the end of the rotor away from first mounting seat, and one paddle is installed to each mounting column, and the rotating direction of the paddle driven by two motors is opposite, the utility model installs two motors on an outer joint, and two motors are arranged up and down, increases the power of unmanned plane and guarantees the installation space of other module of unmanned plane under the condition of not increasing the wing bar.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to an external joint and a UAV. Background Technology

[0002] In existing technologies, the flight propulsion of unmanned aerial vehicles (UAVs) is driven by motors rotating propellers. The rotation of the propellers creates an upward airflow that propels the UAV. A typical UAV has four propellers, with one motor and one propeller mounted on each wing mast. To increase the UAV's payload capacity and flight power, more motors and propellers are needed. However, the UAV's flight platform is equipped with sensing system components, avionics system components, energy components, etc., which prevents the UAV from installing motors and propellers by adding more wing masts. Therefore, a technical solution is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and increase the power of the drone without adding a wing rod, thereby providing an external joint and a drone.

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

[0005] This utility model discloses an external joint, including a connecting arm, a first mounting base, and two motors. The first mounting base is fixedly mounted on the end of the connecting arm, and the two motors are respectively mounted on the upper and lower ends of the first mounting base. Each motor includes a stator and a rotor. The stator is fixedly mounted on the first mounting base, and the rotor is rotatably connected to the stator. The rotor includes two mounting posts, which are symmetrically arranged. The mounting posts are located at the end of the rotor away from the first mounting base, and each mounting post is equipped with a blade. The two motors drive the blades to rotate in opposite directions.

[0006] Furthermore, it includes a second mounting base and two controllers. The second mounting base is fixedly mounted on the connecting arm and is located on one side of the first mounting base. The two controllers are mounted on the second mounting base, and each controller is connected to one of the motors.

[0007] Furthermore, the two controllers are symmetrically mounted on both sides of the second mounting base. Each controller includes a third housing, which is provided with multiple heat sinks. A heat dissipation channel is formed between two adjacent heat sinks, and the heat dissipation channel connects the upper and lower surfaces of the third housing.

[0008] Furthermore, the stator includes a first housing, the first housing having a plurality of first ventilation holes arranged in a ring on the sidewall of the first housing, and the first ventilation holes communicating with the interior of the motor.

[0009] Furthermore, the first ventilation hole is rectangular and inclined, with the end of the first ventilation hole near the first mounting base inclined toward the rotation direction of the blade.

[0010] Furthermore, including a pressure plate, the rotor includes a second housing, the mounting post is located on the upper end face of the second housing, and the pressure plate is fixedly installed on the upper end of the mounting post.

[0011] Furthermore, the sidewall of the second housing is provided with a plurality of second ventilation holes, which are connected to the interior of the motor and are arranged in a ring shape.

[0012] Furthermore, the device includes gaskets, with the pressure plate connecting two of the mounting posts. The gaskets are mounted on the mounting posts, with two gaskets mounted on each mounting post. One gasket is located between the second housing and the blade, and the other gasket is located between the blade and the pressure plate.

[0013] This utility model also discloses an unmanned aerial vehicle (UAV) including the four external joints mentioned above. The four external joints are arranged in an X-shape, and the propellers of two oppositely arranged external joints rotate in the same direction.

[0014] The beneficial effects of this utility model are:

[0015] This invention increases the wind power generated by the drone by installing two motors on an outer joint, with the two motors arranged vertically and their blades rotating in opposite directions simultaneously. This increases the drone's power without adding a wing rod, while ensuring sufficient space for the installation of other modules, resulting in a more rational structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an external joint in this embodiment.

[0017] Figure 2 This is a side view of the external joint in this embodiment.

[0018] Figure 3 This is a top view of the outer joint in this embodiment.

[0019] Figure 4 This is a schematic diagram of a motor in this embodiment.

[0020] Figure 5 This is a schematic diagram of a drone in this embodiment.

[0021] Reference numerals: 12, outer joint; 121, connecting arm; 124, first mounting base; 1241, base body; 1242, mounting block; 125, motor; 1251, stator; 12511, first outer casing; 12512, first ventilation hole; 1252, rotor; 12521, second outer casing; 12522, mounting post; 12523, second ventilation hole; 1253, pressure plate; 12531, stop block; 1254, gasket; 126, blade; 127, controller; 1271, third outer casing; 12711, heat sink; 12712, heat dissipation channel; 128, second mounting base. Detailed Implementation

[0022] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1-4 As shown, this embodiment discloses an external joint 12, including a connecting arm 121, a first mounting base 124, two motors 125, a second mounting base 128, and two controllers 127. The first mounting base 124 is fixedly mounted to the end of the connecting arm 121, and the second mounting base 128 is fixedly mounted to the connecting arm 121. The second mounting base 128 is located on one side of the first mounting base 124 and inside the first mounting base 124. The first mounting base 124 is used to mount the two motors 125, and the second mounting base 128 is used to mount the two controllers 127. Each controller... The controller 127 is connected to a motor 125. Two motors 125 are respectively installed at the upper and lower ends of the first mounting base 124. Each motor 125 is equipped with two blades 126. The motor 125 can drive the blades 126 to rotate. The upper and lower motors 125 drive the blades 126 to rotate in opposite directions. For example, if the lift generated by one motor 125 is 'a', then the force generated by the two motors 125 is approximately 2a. The airflow generated by the rotation of the upper blade 126 can have a traction effect on the lower blade 126, which can slightly reduce the energy required for the lower blade 126 to rotate.

[0024] The motor 125 includes a stator 1251 and a rotor 1252. The rotor 1252 is rotatably connected to the stator 1251. The stator 1251 is fixedly mounted on a first mounting base 124. The first mounting base 124 includes a base body 1241 and two mounting blocks 1242. The base body 1241 is fixed to the connecting arm 121. The two mounting blocks 1242 are mounted on the upper and lower end faces of the base body 1241. The mounting blocks 1242 are fixedly connected to the stator 1251. The end faces of the mounting blocks 1242 and the stator 1251 are inclined. The inclined end faces of the mounting blocks 1242 can make the motor 125 tilted, which can cope with the yaw state of the UAV during flight.

[0025] This embodiment also includes a pressure plate 1253. The rotor 1252 includes a second outer shell 12521 and two mounting posts 12522. The two mounting posts 12522 are symmetrically arranged and are located at the end of the rotor 1252 away from the first mounting seat 124. Each mounting post 12522 is equipped with a blade 126. The mounting posts 12522 are located on the upper end face of the second outer shell 12521. The pressure plate 1253 is fixedly installed on the upper end of the mounting post 12522. When the motor 125 rotates, the blade 126 is thrown outward and straightened by centrifugal force. When not in use, the blade 126 can be rotated to retract it and prevent collision damage. The lower end face of the pressure plate 1253 is provided with two stops 12531, which can limit the rotation of the blade 126 and prevent the two blades 126 from colliding with each other.

[0026] More preferably, this embodiment includes a gasket 1254, a pressure plate 1253 connecting two mounting posts 12522, a gasket 1254 mounted on the mounting posts 12522, two gaskets 1254 mounted on each mounting post 12522, one gasket 1254 located between the second housing 12521 and the blade 126, and the other gasket 1254 located between the blade 126 and the pressure plate 1253. The gasket 1254 is made of plastic and can provide a damping effect for the rotation of the blade 126, preventing the blade 126 from deviating when the motor 125 decelerates or accelerates.

[0027] Two controllers 127 are mounted on the second mounting base 128, symmetrically mounted on both sides of the second mounting base 128. Each controller 127 includes a third housing 1271, which is provided with multiple heat sinks 12711. A heat dissipation channel 12712 is formed between two adjacent heat sinks 12711. The heat dissipation channel 12712 connects the upper and lower surfaces of the third housing 1271. The two controllers 127 are located below the upper blade 126. The rotation of the blade 126 can blow air onto the controllers 127 below, achieving a heat dissipation effect. The vertically arranged heat dissipation channel 12712 can correspond to the air blown out by the blade 126. The airflow can pass between the two heat sinks 12711, making the heat dissipation effect of the controllers 127 better.

[0028] The stator 1251 includes a first housing 12511, which has a plurality of first ventilation holes 12512. The first ventilation holes 12512 are arranged in a ring on the side wall of the first housing 12511 and connect to the interior of the motor 125. The first ventilation holes 12512 are rectangular and inclined. The end of the first ventilation hole 12512 near the first mounting base 124 is inclined towards the rotation direction of the blade 126. The side wall of the second housing 12521 has a plurality of second ventilation holes 12523, which connect to the interior of the motor 125. The second ventilation holes 12523 are arranged in a ring. The vertically distributed first ventilation holes 12512 and second ventilation holes 12523 allow airflow to pass through the interior of the motor 125, which can better dissipate heat from the coils inside the motor 125, thereby improving the performance and extending the life of the motor 125.

[0029] like Figure 5 As shown, this embodiment also discloses a drone, including four external joints 12, which are arranged in an X-shape. The entire drone has an X8 structure. The blades 126 of two oppositely arranged external joints 12 rotate in the same direction, while the blades 126 of two adjacent external joints 12 rotate in opposite directions. This increases the drone's power without adding a wing rod and ensures the installation space for other modules of the drone, resulting in a more reasonable structural layout.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An external joint, characterized in that, The system includes a connecting arm (121), a first mounting base (124), and two motors (125). The first mounting base (124) is fixedly mounted on the end of the connecting arm (121). The two motors (125) are respectively mounted on the upper and lower ends of the first mounting base (124). Each motor (125) includes a stator (1251) and a rotor (1252). The stator (1251) is fixedly mounted on the first mounting base (124), and the rotor (1252) is fixedly mounted on the lower end of the first mounting base (124). 52) Rotatably connected to the stator (1251), the rotor (1252) includes two mounting posts (12522), the two mounting posts (12522) are symmetrically arranged, the mounting posts (12522) are located at the end of the rotor (1252) away from the first mounting seat (124), each mounting post (12522) is equipped with a blade (126), and the two motors (125) drive the blades (126) to rotate in opposite directions.

2. The external joint according to claim 1, characterized in that, It includes a second mounting base (128) and two controllers (127). The second mounting base (128) is fixedly mounted on the connecting arm (121) and is located on one side of the first mounting base (124). The two controllers (127) are mounted on the second mounting base (128) and each controller (127) is connected to one of the motors (125).

3. An external joint according to claim 2, characterized in that, Two controllers (127) are symmetrically mounted on both sides of the second mounting base (128). Each controller (127) includes a third housing (1271). The third housing (1271) is provided with multiple heat sinks (12711). A heat dissipation channel (12712) is formed between two adjacent heat sinks (12711). The heat dissipation channel (12712) connects the upper end face and the lower end face of the third housing (1271).

4. An external joint according to claim 1, characterized in that, The stator (1251) includes a first housing (12511), the first housing (12511) is provided with a plurality of first ventilation holes (12512), the first ventilation holes (12512) are distributed in a ring on the side wall of the first housing (12511), and the first ventilation holes (12512) are connected to the interior of the motor (125).

5. An external joint according to claim 4, characterized in that, The first ventilation hole (12512) is rectangular and inclined, and the end of the first ventilation hole (12512) near the first mounting base (124) is inclined toward the rotation direction of the blade (126).

6. An external joint according to claim 1, characterized in that, The rotor (1252) includes a pressure plate (1253), and the rotor (1252) includes a second housing (12521). The mounting post (12522) is located on the upper end face of the second housing (12521), and the pressure plate (1253) is fixedly installed on the upper end of the mounting post (12522).

7. An external joint according to claim 6, characterized in that, The second housing (12521) has a plurality of second ventilation holes (12523) on its side wall. The second ventilation holes (12523) are connected to the interior of the motor (125) and are arranged in a ring shape.

8. An external joint according to claim 6, characterized in that, Includes a gasket (1254), the pressure plate (1253) connects two mounting posts (12522), the gasket (1254) is mounted on the mounting post (12522), each mounting post (12522) is equipped with two gaskets (1254), one gasket (1254) is located between the second housing (12521) and the blade (126), and the other gasket (1254) is located between the blade (126) and the pressure plate (1253).

9. A drone, characterized in that, It includes four external joints (12) as described in any one of claims 1-8, the four external joints (12) are arranged in an X-shape, and the blades (126) of two external joints (12) arranged opposite each other rotate in the same direction.

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