A drone arm mechanism and a drone

Abstract

This invention discloses a drone arm mechanism and a drone, relating to the field of drone technology. The drone arm mechanism includes an arm, a rotor motor, and an electronic speed controller. Both the rotor motor and the electronic speed controller are mounted on the arm. The rotor motor has a connecting wire that extends from the side of the rotor motor closest to the electronic speed controller and connects to the controller. Compared to existing technologies, the drone arm mechanism provided by this invention, by using a rotor motor and electronic speed controller mounted on the arm and a connecting wire extending from the side of the rotor motor closest to the electronic speed controller, effectively shortens the connecting wire length, saves material costs, avoids friction damage to the connecting wire, and improves safety.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a UAV arm mechanism and a UAV. Background Technology

[0002] Currently, with the continuous improvement of living standards, drones have gradually entered various industries. In drones, both the electronic speed controller (ESC) and the rotor motors are installed on the drone's arms. The ESC and rotor motors are connected by wires. The ESC adjusts the rotor motor speed to control the drone's flight status. However, currently, the wires between the ESC and rotor motors are generally run through the arms, resulting in long wires, high material costs, and contact with the sidewalls of the vias when the wires enter or exit the arms. During drone operation, a certain degree of vibration occurs, and the wires rub against the sidewalls of the vias when the drone vibrates, leading to wire damage and even safety accidents.

[0003] In view of this, designing and manufacturing a cost-effective, safe and reliable drone arm mechanism is of particular importance, especially in drone production. Summary of the Invention

[0004] The purpose of this invention is to provide a drone arm mechanism that can effectively shorten the length of the connecting wire, save material costs, avoid friction damage to the connecting wire, and improve safety.

[0005] Another objective of this invention is to provide a drone that can effectively shorten the length of the connecting cable, save material costs, and avoid damage to the connecting cable due to friction, thereby improving safety.

[0006] The present invention is achieved by the following technical solution.

[0007] A drone arm mechanism includes an arm and a rotor motor and an electronic speed controller mounted on the arm. The rotor motor is provided with a connecting wire, which extends from the side of the rotor motor closest to the electronic speed controller and is connected to the electronic speed controller.

[0008] Optionally, the drone arm mechanism also includes a positioning seat, on which an electronic speed controller is mounted. The positioning seat is mounted on the arm, and the electronic speed controller and the positioning seat together form a limiting groove. The connecting wire passes through the limiting groove and cooperates with it. The limiting groove is used to limit the connecting wire, so as to facilitate the routing and installation of the connecting wire and prevent misalignment of the connecting wire.

[0009] Optionally, the UAV arm mechanism also includes a mounting base, with the mounting base and positioning base spaced apart. The rotor motor is mounted on the mounting base, which is mounted on the arm. The mounting base is used to support and limit the rotor motor, so that the rotor motor remains in a position spaced apart from the electronic speed controller.

[0010] Optionally, the electronic speed controller has a first slot, and the positioning seat has a second slot. The first and second slots together form a limiting groove. The sidewalls of the first and second slots work together to limit the connection wire and prevent it from coming out of the limiting groove.

[0011] Optionally, both the first and second slots are semicircular slots, with the diameter of the semicircle formed by the first slot being the same as the diameter of the semicircle formed by the second slot. This facilitates the installation of the connecting wires and streamlines manufacturing processes.

[0012] Optionally, the UAV arm mechanism also includes a wedge-shaped buckle, which is sleeved on the outside of the arm and abuts against the positioning seat. The wedge-shaped buckle has a guide groove that communicates with a second slot. The connecting wire extends into the limiting slot through the guide groove, and the connecting wire cooperates with the guide groove. The guide groove is used to guide and limit the second connecting wire, so as to facilitate the guiding wire into the limiting slot and further improve the limiting effect on the connecting wire.

[0013] Optionally, the guide groove and the second slot have the same shape and size, and are aligned. This allows the connecting wire to smoothly enter the second slot through the guide groove, facilitating the routing of the connecting wire.

[0014] Optionally, there are three connecting wires, three first slots, three second slots, and three guide slots. Each first slot and one second slot form a limiting slot. Each connecting wire extends into a limiting slot through a guide slot. The three guide slots are arranged parallel and equidistantly on the wedge-shaped buckle. The three guide slots and the three limiting slots work together to ensure the limiting effect on the three connecting wires, so that the three connecting wires are stably connected to the electronic speed controller simultaneously.

[0015] Optionally, the electronic speed controller includes a housing and a speed controller body. The speed controller body is installed inside the housing. The speed controller body has a first terminal and a second terminal opposite to each other. The first terminal is connected to a connecting wire, and the second terminal is used to connect to a connecting cable. The end of the connecting cable away from the second terminal is connected to the control module on the machine body to realize the electrical connection between the control module and the speed controller body, so that the control module can send control signals to the speed controller body.

[0016] Optionally, the arm is tubular with an internal cavity. A cable pass-through port communicating with the internal cavity is located on the side of the arm near the electronic speed controller, allowing the connecting cable inside the cavity to pass through. The arm serves to shield and protect the connecting cable, preventing damage and improving aesthetics.

[0017] Optionally, the drone arm mechanism also includes rotor blades, which are mounted on rotor motors and driven to rotate. This creates a pressure difference between the upper and lower sides of the rotor blades, generating lift and propelling the entire drone upwards to achieve flight.

[0018] A drone includes a fuselage and the aforementioned drone arm mechanism. The drone arm mechanism includes an arm and a rotor motor and an electronic speed controller mounted on the arm. The rotor motor is provided with a connecting wire, which extends from the side of the rotor motor near the electronic speed controller and connects to the electronic speed controller. The arm is connected to the fuselage.

[0019] The UAV arm mechanism and UAV provided by this invention have the following beneficial effects:

[0020] The UAV arm mechanism provided by this invention features a rotor motor and an electronic speed controller both mounted on the arm. The rotor motor has a connecting wire that extends from the side of the rotor motor closest to the electronic speed controller and connects to it. Compared to existing technologies, the UAV arm mechanism provided by this invention, by using a rotor motor and electronic speed controller mounted on the arm and a connecting wire extending from the side of the rotor motor closest to the electronic speed controller, effectively shortens the connecting wire length, saves material costs, avoids friction damage to the connecting wire, and improves safety.

[0021] The drone provided by this invention includes a drone arm mechanism, which can effectively shorten the length of the connecting line, save material costs, and avoid friction damage to the connecting line, thereby improving safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the UAV arm mechanism provided in an embodiment of the present invention;

[0024] Figure 2 An exploded view of the unmanned aerial vehicle (UAV) arm mechanism provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the electronic speed controller in the unmanned aerial vehicle (UAV) arm mechanism provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the positioning seat in the UAV arm mechanism provided in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the arm in the UAV arm mechanism provided in an embodiment of the present invention.

[0028] Icons: 100-UAV arm mechanism; 110-Arm; 111-Inner cavity; 112-Wire passage; 120-Mounting base; 130-Rotor motor; 131-Connecting wire; 132-Bending part; 133-Straightening part; 140-Positioning seat; 141-Second slot; 150-Electronic speed controller; 151-First slot; 152-Outer shell; 153-Speed ​​controller body; 154-First terminal block; 155-Second terminal block; 160-Wedge buckle; 161-Guide groove; 170-Limiting groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0035] Please refer to Figure 1 This invention provides an unmanned aerial vehicle (UAV) (not shown) for unmanned autonomous operation. It effectively shortens the length of the connecting cable 131, saving material costs and preventing friction damage to the connecting cable 131, thus improving safety.

[0036] The drone includes a fuselage (not shown) and a drone arm mechanism 100. The drone arm mechanism 100 is equipped with an arm 110, which is connected to the fuselage to fix the relative position of the fuselage and the drone arm mechanism 100. The drone arm mechanism 100 is used to rotate to generate lift, thereby driving the entire drone to perform flight operations.

[0037] The UAV arm mechanism 100 includes an arm 110, a mounting base 120, a rotor motor 130, a positioning base 140, an electronic speed controller 150, a wedge-shaped buckle 160, and rotor blades (not shown). The rotor motor 130 and the electronic speed controller 150 are mounted on the arm 110. The rotor motor 130 has a connecting cable 131, which extends from the side of the rotor motor 130 closest to the electronic speed controller 150 and connects directly to it. This means the connecting cable 131 connects directly to the electronic speed controller 150 after exiting the rotor motor 130, without needing to pass through the arm 110. This effectively shortens the length of the connecting cable 131, saves material costs, avoids friction damage to the connecting cable 131, and improves safety.

[0038] Furthermore, the mounting base 120 and the positioning base 140 are spaced apart and both are mounted on the arm 110. The arm 110 supports and limits both the mounting base 120 and the positioning base 140 to fix their relative positions. The rotor motor 130 is mounted on the mounting base 120, which supports and limits the rotor motor 130. The electronic speed controller 150 is mounted on the positioning base 140, which supports and limits the electronic speed controller 150. A wedge-shaped buckle 160 is fitted over the arm 110 and abuts against the positioning base 140. The wedge-shaped buckle 160 is used to engage with the other arm 110 when the drone is folded and stored to fix the relative positions of the two arms 110, improve the overall integrity of the drone when folded, and facilitate storage.

[0039] Specifically, the rotor motor 130 is provided with a connecting line 131. The electronic speed controller 150 and the positioning seat 140 together form a limiting groove 170. The connecting line 131 passes through the limiting groove 170 and cooperates with the limiting groove 170, and is connected to the electronic speed controller 150. The electronic speed controller 150 is electrically connected to the rotor motor 130 through the connecting line 131. The connecting line 131 is used to realize the transmission of electrical signals and power, so that the electronic speed controller 150 can adjust the speed of the rotor motor 130 according to the control signal. The limiting groove 170 is used to limit the connecting line 131, so as to realize the routing and installation of the connecting line 131, and can prevent the connecting line 131 from being misaligned. In this way, the connecting wire 131 extends out from the rotor motor 130 and passes directly through the limiting groove 170 between the electronic speed controller 150 and the positioning seat 140, and connects with the electronic speed controller 150. This effectively shortens the length of the connecting wire 131, saves material costs, avoids friction damage to the connecting wire 131, and improves safety.

[0040] It should be noted that the rotor blades are mounted on the rotor motor 130, which drives the rotor blades to rotate. During the rotation of the rotor blades, the air velocity on the upper surface of the rotor blades is faster and the pressure is lower, while the air velocity on the lower surface of the rotor blades is slower and the pressure is higher. This results in a pressure difference between the upper and lower sides of the rotor blades, thereby generating lift and driving the entire UAV to rise and achieve flight.

[0041] Please refer to the reference. Figures 2 to 5 In this embodiment, the electronic speed controller 150 has a first slot 151, and the positioning seat 140 has a second slot 141. The first slot 151 and the second slot 141 together form a limiting groove 170, that is, the sidewalls of the first slot 151 and the second slot 141 together form the limiting groove 170. Specifically, when the connecting wire 131 mates with the limiting groove 170, the sidewalls of the first slot 151 and the second slot 141 work together to limit the connecting wire 131 and prevent the connecting wire 131 from coming out of the limiting groove 170.

[0042] Furthermore, both the first slot 151 and the second slot 141 are semi-circular slots, and the limiting slot 170 is a circular slot. The diameter of the semicircle formed by the first slot 151 is the same as the diameter of the semicircle formed by the second slot 141, and slightly larger than the diameter of the connecting wire 131, to facilitate the installation of the connecting wire 131 and to facilitate production and processing. Specifically, during the installation of the connecting wire 131, the connecting wire 131 is first inserted into the first slot 151 and connected to the electronic speed controller 150, at which point a portion of the connecting wire 131 protrudes from the opening of the first slot 151. Next, the electronic speed controller 150 is installed on the positioning seat 140 so that the position of the first slot 151 corresponds to the position of the second slot 141. During this process, the portion of the connecting wire 131 protruding from the opening of the first slot 151 is fitted into the second slot 141. The first slot 151 and the second slot 141 work together to limit the connection wire 131.

[0043] It is worth noting that the wedge buckle 160 has a guide groove 161, which is connected to the second slot 141. The connecting line 131 extends into the limiting slot 170 through the guide groove 161. The connecting line 131 cooperates with the guide groove 161. The guide groove 161 is used to guide and limit the second connecting line 131, so as to guide the connecting line 131 into the limiting slot 170 and further improve the limiting effect of the connecting line 131.

[0044] In this embodiment, the guide groove 161 and the second slot 141 have the same shape and size. The guide groove 161 and the second slot 141 are aligned so that the connecting line 131 can smoothly enter the second slot 141 through the guide groove 161, which facilitates the routing of the connecting line 131.

[0045] In this embodiment, the distance between the rotor motor 130 and the arm 110 is greater than the distance between the electronic speed controller 150 and the arm 110, meaning the height of the rotor motor 130 is higher than the height of the electronic speed controller 150. During the installation of the connecting cable 131, the connecting cable 131 first forms a bent section 132 towards the direction close to the electronic speed controller 150 and the arm 110, then extends sequentially through the guide groove 161 and the limiting groove 170 to the electronic speed controller 150, forming a straight section 133. Specifically, the guide groove 161 is located at the transition position between the bent section 132 and the straight section 133. The guide groove 161 can guide and limit the bent section 132 to smoothly transition to the straight section 133, avoiding friction damage to the connecting cable 131 due to vibration during the operation of the UAV.

[0046] In this embodiment, there are three connecting wires 131, three first slots 151, three second slots 141, and three guide slots 161. Each first slot 151 and each second slot 141 forms a limiting slot 170. Each connecting wire 131 extends into a limiting slot 170 through a guide slot 161. The three guide slots 161 are arranged parallel and equidistantly on the wedge-shaped buckle 160. The three guide slots 161 and the three limiting slots 170 work together to ensure the limiting effect on the three connecting wires 131, so that the three connecting wires 131 are stably connected to the electronic speed controller 150 at the same time. Specifically, the three connecting wires 131 are the neutral wire, the ground wire, and the live wire, respectively, to realize the three-phase electrical connection between the rotor motor 130 and the electronic speed controller 150.

[0047] The electronic speed controller 150 includes a housing 152 and a speed controller body 153. The speed controller body 153 is installed inside the housing 152, which is used to fix and limit the speed controller body 153. The speed controller body 153 is used to adjust the speed of the rotor motor 130 according to the control signal. The housing 152 is detachably connected to the positioning seat 140 for easy disassembly, assembly, and maintenance. Specifically, the speed controller body 153 is provided with a first terminal 154 and a second terminal 155. The position of the first terminal 154 corresponds to the position of the limiting groove 170. The first terminal 154 is connected to the connecting line 131. The connecting line 131 passing through the limiting groove 170 can be quickly connected to the first terminal 154, which is convenient and fast. The second terminal 155 is used to connect to the connecting line (not shown in the figure). The end of the connecting line away from the second terminal 155 is connected to the control module on the machine body to realize the electrical connection between the control module and the speed controller body 153, so that the control module can send control signals to the speed controller body 153.

[0048] In this embodiment, the arm 110 is tubular, with an inner cavity 111 inside. A cable passage 112, communicating with the inner cavity 111, is provided on the side of the arm 110 near the electronic speed controller 150. The cable passage 112 allows the connecting cable inside the inner cavity 111 to pass through, facilitating cable routing. Specifically, one end of the connecting cable is connected to the speed controller body 153, and the other end passes through the cable passage 112 into the inner cavity 111, extending along the length of the arm 110 and finally connecting to the control module on the machine body. The arm 110 serves to shield and protect the connecting cable to prevent damage and improve aesthetics.

[0049] The UAV arm mechanism 100 provided in this embodiment of the invention, including a rotor motor 130 and an electronic speed controller 150, are all mounted on the arm 110. The rotor motor 130 is provided with a connecting wire 131, which extends from the side of the rotor motor 130 closest to the electronic speed controller 150 and connects to it. Compared with the prior art, the UAV arm mechanism provided by this invention, by using the rotor motor 130 and electronic speed controller 150 mounted on the arm 110, and the connecting wire 131 extending from the side of the rotor motor 130 closest to the electronic speed controller 150, can effectively shorten the length of the connecting wire 131, saving material costs and avoiding friction damage to the connecting wire 131, thus improving safety. This results in a UAV with good economic benefits and high reliability.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A drone arm mechanism, characterized in that, The system includes an arm (110), a positioning base (140), a rotor motor (130) and an electronic speed controller (150) mounted on the arm (110). The electronic speed controller (150) is mounted on the positioning base (140), which is mounted on the arm (110). The positioning base (140) has at least a portion of a limiting groove (170) on the side of the rotor motor (130) near the rotor motor (130). The rotor motor (130) is provided with a connecting wire (131). The connecting wire (131) is led out from the side of the rotor motor (130) near the electronic speed controller (150), passes through the limiting groove (170), and is connected to the electronic speed controller (150). The electronic speed controller (150) includes a housing (152) and a speed controller body (153), the speed controller body (153) being installed inside the housing (152); the speed controller body (153) is provided with a first terminal (154), the first terminal (154) being located on the side of the speed controller body (153) near the rotor motor (130); the position of the first terminal (154) corresponds to the position of the limiting groove (170), and the first terminal (154) is connected to the connecting wire (131); The electronic speed controller (150) and the positioning seat (140) together form the limiting groove (170), and the connecting line (131) cooperates with the limiting groove (170); The UAV arm mechanism also includes a mounting base (120), the mounting base (120) and the positioning base (140) are spaced apart, the rotor motor (130) is mounted on the mounting base (120), and the mounting base (120) is mounted on the arm (110); The first terminal block (154) is located at the bottom of the electronic speed controller (150).

2. The UAV arm mechanism according to claim 1, characterized in that, The electronic speed controller (150) has a first slot (151), and the positioning seat (140) has a second slot (141). The first slot (151) and the second slot (141) together form the limiting groove (170).

3. The unmanned aerial vehicle arm mechanism of claim 2, wherein, Both the first slot (151) and the second slot (141) are semicircular slots, and the diameter of the semicircle formed by the first slot (151) is the same as the diameter of the semicircle formed by the second slot (141).

4. The unmanned aerial vehicle arm mechanism of claim 2, wherein, The UAV arm mechanism also includes a wedge buckle (160), which is sleeved on the outside of the arm (110) and abuts against the positioning seat (140). The wedge buckle (160) has a guide groove (161) which communicates with the second slot (141). The connecting line (131) extends into the limiting slot (170) through the guide groove (161) and cooperates with the guide groove (161).

5. The drone arm mechanism of claim 4, wherein, The guide groove (161) and the second slot (141) have the same shape and size, and the guide groove (161) and the second slot (141) are aligned.

6. The unmanned aerial vehicle arm mechanism of claim 4, wherein, The number of the connecting line (131), the first slot (151), the second slot (141) and the guide slot (161) are all three. Each first slot (151) and a second slot (141) form a limiting slot (170). Each connecting line (131) extends into a limiting slot (170) through a guide slot (161). The three guide slots (161) are arranged parallel and equally spaced on the wedge buckle (160).

7. The drone arm mechanism of claim 1, wherein, The speed controller body (153) is also provided with a second terminal (155), which is disposed opposite to the first terminal (154) and is used to connect to the connecting wire.

8. The unmanned aerial vehicle arm mechanism of claim 1, wherein, The arm (110) is tubular and has an inner cavity (111). A wire passage (112) communicating with the inner cavity (111) is provided on the side of the arm (110) near the electronic speed controller (150). The wire passage (112) is used for the connection wire in the inner cavity (111) to pass through.

9. The unmanned aerial vehicle arm mechanism of claim 1, wherein, The UAV arm mechanism also includes rotor blades, which are mounted on the rotor motor (130) and the rotor motor (130) is used to drive the rotor blades to rotate.

10. A drone, characterized in that, It includes a fuselage and a drone arm mechanism as described in any one of claims 1 to 9, wherein the arm (110) is connected to the fuselage.

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