Power device and unmanned aerial vehicle

Abstract

The embodiment of the utility model relates to the technical field of unmanned aerial vehicles, in particular to a power device and an unmanned aerial vehicle, the power device comprises a motor assembly and an electronic speed controller assembly, the motor assembly is used for being installed on a vehicle arm, the electronic speed controller assembly comprises an electronic speed controller and an electronic speed controller support, and the electronic speed controller support comprises a first electronic speed controller support, a second electronic speed controller support and a first fixing piece. The electronic speed controller is arranged on the first electronic speed controller support and electrically connected with the motor assembly, the first electronic speed controller support and the second electronic speed controller support are used for clamping the vehicle arm, the first fixing piece is connected with the first electronic speed controller support and the second electronic speed controller support, and when the first fixing piece is in a locked state, the first fixing piece fixes the first electronic speed controller support and the second electronic speed controller support to the vehicle arm. When the first fixing piece is in the unlocking state, the first electronic speed controller support and the second electronic speed controller support are allowed to adjust the position of the electronic speed controller relative to the vehicle arm relative to the vehicle arm. The fixing position of the electric adjusting assembly relative to the vehicle arm can be adjusted, and compared with a single fixing position, the adaptation capacity of the power device is improved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of unmanned aerial vehicles, and in particular to a power device and an unmanned aerial vehicle. Background Art

[0002] As a flying device with advantages such as flexibility, quick response, unmanned flight, and low operating requirements, UAVs are widely used in many fields such as aerial photography, environmental monitoring, agricultural plant protection, and logistics distribution. UAVs mainly include a fuselage, a blade assembly, and a power unit. The power unit is used to provide power for the blade assembly, which directly affects the flight performance and stability of the UAV. The current power unit usually includes a motor and an electric regulator, which are fixedly installed on the arm, and the arm is connected to the fuselage.

[0003] In the process of implementing the embodiments of the present application, the inventors discovered that the electric regulator and the arm of the power unit on the market are fixed in a single manner, that is, the electric regulator can only be fixed at one position of the arm. When the power unit and the arm are installed on the fuselage of the unmanned aerial vehicle, since the fuselages of unmanned aerial vehicles from different manufacturers and in different application scenarios are different, it is inevitable that the electric regulator and the fuselage will abut against each other, affecting the installation of the arm. At this time, other power units can only be replaced, and the adaptability of the power units is poor. Utility Model Content

[0004] In view of the above problems, the embodiments of the present utility model provide a power device and an unmanned aerial vehicle, which overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a power device, including a motor assembly and an electric adjustment assembly, the motor assembly is used to be installed on the machine arm, the electric adjustment assembly includes an electric adjustment and an electric adjustment bracket, the electric adjustment bracket includes a first electric adjustment bracket, a second electric adjustment bracket and a first fixing member, the electric adjustment is arranged on the first electric adjustment bracket, the electric adjustment is electrically connected to the motor assembly, the first electric adjustment bracket and the second electric adjustment bracket are used to clamp the machine arm, the first fixing member connects the first electric adjustment bracket and the second electric adjustment bracket, when the first fixing member is in a locked state, the first fixing member fixes the first electric adjustment bracket and the second electric adjustment bracket to the machine arm, and when the first fixing member is in an unlocked state, the first electric adjustment bracket and the second electric adjustment bracket are allowed to adjust the position of the electric adjustment relative to the machine arm.

[0006] Optionally, the first electrically adjustable bracket is provided with a first groove, and the second electrically adjustable bracket is provided with a second groove. When the first fixing member fixes the first electrically adjustable bracket and the second electrically adjustable bracket together, the first groove and the second groove jointly form a first mounting hole, and the first mounting hole is used to accommodate part of the machine arm. The shapes of the inner walls of the first groove and the second groove match the shape of the machine arm.

[0007] Optionally, the first electrically adjustable bracket has a first connecting portion and a second connecting portion extending from both ends of the first groove, respectively, and the second electrically adjustable bracket has a third connecting portion and a fourth connecting portion extending from both ends of the second groove, respectively. The first fixing member includes two first screws, one of the first screws is used to pass through the third connecting portion and then be screwed to the first connecting portion, and the other of the first screws is used to pass through the fourth connecting portion and then be screwed to the second connecting portion, so as to fix the first electrically adjustable bracket and the second electrically adjustable bracket together.

[0008] Optionally, the motor assembly includes a motor and a motor bracket, the motor bracket is detachably connected to the machine arm, the motor is arranged on the motor bracket, and the motor is electrically connected to the electric regulator.

[0009] Optionally, the motor bracket includes a first motor bracket, a second motor bracket and a second fixing piece, the first motor bracket and the second motor bracket are used to clamp the machine arm, and the second fixing piece connects the first motor bracket and the second motor bracket, and when the second fixing piece is in a locked state, the second fixing piece fixes the first motor bracket and the second motor bracket to the machine arm, and when the second fixing piece is in an unlocked state, the first motor bracket and the second motor bracket are allowed to adjust the position of the motor relative to the machine arm.

[0010] Optionally, the first motor bracket is provided with a third groove, and the second motor bracket is provided with a fourth groove. When the second fixing member fixes the first motor bracket and the second motor bracket together, the third groove and the fourth groove are connected to form a second mounting hole, and the second mounting hole is used to accommodate part of the arm.

[0011] Optionally, the first motor bracket has a fifth connecting portion and a sixth connecting portion extending from both ends of the third groove, respectively, and the second motor bracket has a seventh connecting portion and an eighth connecting portion extending from both ends of the fourth groove, respectively. The second fixing member includes two second screws, one of the second screws is used to pass through the seventh connecting portion and then be screwed to the fifth connecting portion, and the other of the second screws is used to pass through the eighth connecting portion and then be screwed to the sixth connecting portion, so as to fix the first motor bracket and the second motor bracket together.

[0012] Optionally, the power device further includes a first cable, one end of which is used to be connected to an external circuit, and the other end of the first cable is detachably connected to an input end of the electric regulator.

[0013] Optionally, the power device further comprises a protective cover, which is used to include at least a portion of the motor assembly.

[0014] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide an unmanned aerial vehicle, including an arm and the above power device.

[0015] The beneficial effects of the embodiment of the utility model are as follows: Different from the prior art, the embodiment of the present application provides a power device and an unmanned aerial vehicle, the power device includes a motor assembly and an electric adjustment assembly, the motor assembly is used to be installed on the machine arm, the electric adjustment assembly includes an electric adjustment and an electric adjustment bracket, the electric adjustment bracket includes a first electric adjustment bracket, a second electric adjustment bracket and a first fixing member, the electric adjustment is arranged on the first electric adjustment bracket, the electric adjustment is electrically connected to the motor assembly, the first electric adjustment bracket and the second electric adjustment bracket are used to clamp the machine arm, the first fixing member connects the first electric adjustment bracket and the second electric adjustment bracket, when the first fixing member is in a locked state, the first fixing member fixes the first electric adjustment bracket and the second electric adjustment bracket to the machine arm, when the first fixing member is in an unlocked state, the first electric adjustment bracket and the second electric adjustment bracket are allowed to adjust the position of the electric adjustment relative to the machine arm. In the above manner, the fixed position of the electric adjustment assembly relative to the machine arm can be adjusted, and compared with a single fixed position, the adaptability of the power device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional diagram of a power device and a machine arm provided in one embodiment of the utility model;

[0018] Figure 2 It is an exploded view of a power device and a machine arm provided in one embodiment of the utility model from one perspective;

[0019] Figure 3 It is an exploded view of a power device and a machine arm provided by an embodiment of the utility model from another perspective;

[0020] Figure 4This is an exploded view of the power device and the machine arm provided by an embodiment of the utility model from another perspective

[0021] Figure 5 It is a stereoscopic diagram of a power device, a machine arm and a propeller provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0024] See also Figure 1 and Figure 2 The power device includes an electric adjustment component 1, a first cable 2, a motor component 3 and a protective cover 4. The electric adjustment component 1, the first cable 2, the motor component 3 and the protective cover 4 are all used to be installed on the arm 5. The first cable 2 is used to connect the external circuit and the electric adjustment component 1. The electric adjustment component 1 is electrically connected to the motor component 3. The protective cover 4 is used to protect the motor component 3.

[0025] For the above ESC assembly 1, please refer to Figure 2 and Figure 4 The electric adjustment component 1 is used to be installed on the outer surface of the arm 5. The electric adjustment component 1 includes an electric adjustment 11 and an electric adjustment bracket 12. The electric adjustment bracket 12 includes a first electric adjustment bracket 121, a second electric adjustment bracket 122 and a first fixing piece 123. The electric adjustment 11 is arranged on the first electric adjustment bracket 121. The electric adjustment 11 is electrically connected to the first cable 2 and the motor component 3 respectively. The first mounting and the second electric adjustment bracket 122 are used to clamp the arm 5. The first fixing piece 123 connects the first electric adjustment bracket 121 and the second electric adjustment bracket 122.

[0026] The first electric adjustment bracket 121 includes a first groove 1210, a first connecting portion 1211 and a second connecting portion 1212. The first connecting portion 1211 and the second connecting portion 1212 are respectively extended from the two ends of the first groove 1210. The notch of the first groove 1210 is arranged toward the machine arm 5. The shape of the inner wall of the first groove 1210 matches the shape of the machine arm 5, so that the first electric adjustment bracket 121 can be fitted with the outer surface of the machine arm 5. The electric adjustment 11 is located on the side of the first electric adjustment bracket 121 away from the machine arm 5. The second electric adjustment bracket 122 includes a second groove 1220, a third connecting portion 1221 and a fourth connecting portion 1222. The third connecting portion 1221 and the fourth connecting portion 1222 are respectively extended from the two ends of the second groove 1220. The notch of the second groove 1220 is arranged toward the machine arm 5. The shape of the inner wall of the second groove 1220 matches the shape of the machine arm 5, so that the second electric adjustment bracket 122 can be fitted with the outer surface of the machine arm 5. The first fixing member 123 includes two or more first screws 1231 .

[0027] Further, when the first fixing member 123 is in a locked state, that is, one first screw 1231 passes through the third connection portion 1221 and is screwed to the first connection portion 1211, and another first screw 1231 passes through the fourth connection portion 1222 and is screwed to the second connection portion 1212, so as to fix the first electric adjustment bracket 121 and the second electric adjustment bracket 122 together, the first groove 1210 and the second groove 1220 form a first mounting hole for accommodating part of the machine arm 5. At this time, the first fixing member 123 fixes the first electric adjustment bracket 121 and the second electric adjustment bracket 122 to the machine arm 5.

[0028] When the first fixing member 123 is in the unlocked state, that is, the first screw 1231 connecting the first connection part 1211 and the third connection part 1221 is removed, so that the first connection part 1211 and the third connection part 1221 are separated, and / or the first screw 1231 connecting the second connection part 1212 and the fourth connection part 1222 is removed, so that the second connection part 1212 and the fourth connection part 1222 are separated. At this time, the first electric adjustment bracket 121 and the second electric adjustment bracket 122 are allowed to adjust the position of the electric adjustment 11 relative to the arm 5.

[0029] In some embodiments, the number of the first connection part 1211, the second connection part 1212, the third connection part 1221 and the fourth connection part 1222 are all more than one, wherein the number of the first connection part 1211 and the third connection part 1221 are equal, and the number of the second connection part 1212 and the fourth connection part 1222 are equal.

[0030] It is understandable that the cross section of the arm 5 may be circular, oval, square or irregular, and the shapes of the inner walls of the first groove 1210 and the second groove 1220 match the shape of the arm 5. In addition, the electric adjustment bracket 12 is not limited to the structure described above, and may also be other structures, for example, the first connection part 1211 and the third connection part 1221 are fixedly connected, and the second connection part 1212 and the fourth connection part 1222 are connected by the first screw 1231, or the second connection part 1212 and the fourth connection part 1222 are fixedly connected, and the first connection part 1211 and the third connection part 1221 are connected by the first screw 1231.

[0031] For the first cable 2, see Figure 3 The first cable 2 is arranged in the arm 5, one end of the first cable 2 extends out from the end opening of one end of the arm 5, and the other end of the first cable 2 passes through the side wall of the arm 5 and is electrically connected to the input end of the electric speed controller 11. One end of the first cable 2 is used to connect to an external circuit so that the electric speed controller 11 receives power and signals. The other end of the first cable 2 is detachably connected to the electric speed controller 11. When the electric speed controller 11 is adjusted relative to the arm 5 along with the electric speed controller bracket 12, the connection between the first cable 2 and the electric speed controller 11 can be conveniently disconnected, and then reconnected after adjustment, thereby ensuring the flexibility and reliability of the connection between the first cable 2 and the electric speed controller 11.

[0032] For the above motor assembly 3, see Figure 2 and Figure 4 The motor assembly 3 includes a motor 31, a motor bracket 32 ​​and a second cable 33. The motor bracket 32 ​​is used to be detachably connected to the machine arm 5. The motor bracket 32 ​​includes a first motor bracket 321, a second motor bracket 322 and a second fixing member 323. The first motor bracket 321 and the second motor bracket 322 are used to clamp the machine arm 5, and the second fixing member 323 is used to connect the first motor bracket 321 and the second motor bracket 322. The motor 31 is arranged on the first motor bracket 321. The motor 31 is electrically connected to the electric speed controller 11 through the second cable 33. One end of the second cable 33 is fixedly connected to the motor 31, and the other end of the second cable 33 is detachably connected to the output end of the electric speed controller 11.

[0033] The first motor bracket 321 includes a third groove 3210, a fifth connecting portion 3211 and a sixth connecting portion 3212, the fifth connecting portion 3211 and the sixth connecting portion 3212 are respectively extended from the two ends of the third groove 3210, the third groove 3210 is arranged toward the machine arm 5, the shape of the inner wall of the third groove 3210 matches the shape of the machine arm 5, so that the first motor bracket 321 can fit the outer surface of the machine arm 5. The motor 31 is located on the side of the first motor bracket 321 away from the machine arm 5. The second motor bracket 322 includes a fourth groove 3220, a seventh connecting portion 3221 and an eighth connecting portion 3222, the seventh connecting portion 3221 and the eighth connecting portion 3222 are respectively extended from the two ends of the fourth groove 3220, the fourth groove 3220 is arranged toward the machine arm 5, the shape of the inner wall of the fourth groove 3220 matches the shape of the machine arm 5, so that the second motor bracket 322 can fit the outer surface of the machine arm 5. The second fixing member 323 includes second screws 3231 , and the number of the second screws 3231 is two or more.

[0034] Further, when the second fixing member 323 is in a locked state, that is, one second screw 3231 passes through the seventh connection portion 3221 and is screwed to the fifth connection portion 3211, and another second screw 3231 passes through the eighth connection portion 3222 and is screwed to the sixth connection portion 3212, so as to fix the first motor bracket 321 and the second motor bracket 322 together, the third groove 3210 and the fourth groove 3220 form a second mounting hole for accommodating part of the machine arm 5. At this time, the second fixing member 323 fixes the first motor bracket 321 and the second motor bracket 322 to the machine arm 5.

[0035] When the second fixing member 323 is in the unlocked state, that is, the second screw 3231 connecting the fifth connecting portion 3211 and the seventh connecting portion 3221 is removed, so that the fifth connecting portion 3211 and the seventh connecting portion 3221 are separated, and / or the second screw 3231 connecting the sixth connecting portion 3212 and the eighth connecting portion 3222 is removed, so that the sixth connecting portion 3212 and the eighth connecting portion 3222 are separated. At this time, the first motor bracket 321 and the second motor bracket 322 are allowed to adjust the position of the motor 31 relative to the arm 5.

[0036] In some embodiments, the number of the fifth connection part 3211, the sixth connection part 3212, the seventh connection part 3221 and the eighth connection part 3222 are all more than one, the number of the fifth connection part 3211 and the seventh connection part 3221 are equal, and the number of the sixth connection part 3212 and the eighth connection part 3222 are equal.

[0037] It can be understood that the motor bracket 32 ​​is not limited to the structure described above, but can also be other structures, for example, the fifth connecting part 3211 and the seventh connecting part 3221 are fixedly connected, and the sixth connecting part 3212 and the eighth connecting part 3222 are connected by the second screw 3231, or the sixth connecting part 3212 and the eighth connecting part 3222 are fixedly connected, and the fifth connecting part 3211 and the seventh connecting part 3221 are connected by the second screw 3231.

[0038] It should be noted that the second cable 33 may be a three-phase cable, which can provide more stable and efficient power transmission compared to a single-phase cable. The position of the other end of the second cable 33 connected to the electric speed controller 11 relative to the machine arm 5 changes with the position adjustment of the electric speed controller 11 and the motor 31, maintaining the flexibility and adaptability of the connection.

[0039] For the above-mentioned protective cover 4, please refer to Figures and Figures. The protective cover 4 is used to be installed at the other end of the arm 5 to wrap and protect the second cable 33, the motor bracket 32 ​​and at least part of the motor 31, and play a role in preventing collision and dust.

[0040] In the embodiment of the utility model, the power device includes an electric adjustment component 1 and a motor component 3. The motor component 3 is used to be installed on the machine arm 5. The electric adjustment component 1 includes an electric adjustment 11 and an electric adjustment bracket 12. The electric adjustment bracket 12 includes a first electric adjustment bracket 121, a second electric adjustment bracket 122 and a first fixing member 123. The electric adjustment 11 is arranged on the first electric adjustment bracket 121. The electric adjustment 11 is electrically connected to the motor component 3. The first electric adjustment bracket 121 and the second electric adjustment bracket 122 are used to clamp the machine arm 5. The first fixing member 123 connects the first electric adjustment bracket 121 and the second electric adjustment bracket 122. When the first fixing member 123 is in a locked state, the first fixing member 123 fixes the first electric adjustment bracket 121 and the second electric adjustment bracket 122 to the machine arm 5. When the first fixing member 123 is in an unlocked state, the first electric adjustment bracket 121 and the second electric adjustment bracket 122 are allowed to adjust the position of the electric adjustment 11 relative to the machine arm 5 relative to the machine arm 5. The electric adjustment bracket 12 is clamped and fixed with the machine arm 5 and the position can be adjusted, so that the installation of the electric adjustment 11 on the machine arm 5 is more flexible and convenient, and the adaptability and practicality of the power device are improved. Specifically, since different application scenarios or different types of unmanned aerial vehicles have different specific requirements for the power device, compared with the fixed installation position of the electric adjustment 11, by adjusting the position of the electric adjustment 11 on the machine arm 5, it is possible to adapt to different installation environments and requirements without complicated redesign or modification of the entire power device.

[0041] The utility model provides an unmanned aerial vehicle embodiment, the unmanned aerial vehicle comprises a fuselage (not shown), an arm 5, a propeller 6 and the above-mentioned power device, the arm 5 is connected to the fuselage, the propeller 6 is connected to the power device, the power device is arranged on the arm 5, and one end of the first cable 2 of the power device is connected to the control circuit and the power supply circuit of the fuselage. For other structures and functions of the power device, please refer to the above-mentioned embodiment, which will not be described one by one here.

[0042] It can be understood that the number of arms 5 can be one or more, and at least one power device and propeller 6 are installed on one arm 5.

[0043] See also Figure 5 The propeller 6 is electrically connected to the motor 31, and the motor 31 is used to drive the propeller 6 to rotate. It can be understood that the position of the motor 31 relative to the machine arm 5 can be adjusted along with the motor bracket 32, so that the connection between the motor 31 and the electric speed controller 11 is more flexible, and further, the position of the propeller 6 relative to the machine arm 5 can be adjusted to ensure good power output and balance of the propeller 6 in different application scenarios or different models of unmanned aerial vehicles.

[0044] It should be noted that the material of the arm 5 can be a high-strength and lightweight carbon fiber composite material, or other high-performance materials.

[0045] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A power device, characterized in that: include: A motor assembly, for mounting on a machine arm; An electric adjustment component, comprising an electric adjustment and an electric adjustment bracket, wherein the electric adjustment bracket comprises a first electric adjustment bracket, a second electric adjustment bracket and a first fixing member, wherein the electric adjustment is arranged on the first electric adjustment bracket, the electric adjustment is electrically connected to the motor component, the first electric adjustment bracket and the second electric adjustment bracket are used to clamp the machine arm, and the first fixing member connects the first electric adjustment bracket and the second electric adjustment bracket; When the first fixing member is in a locked state, the first fixing member fixes the first electric adjustment bracket and the second electric adjustment bracket to the machine arm; When the first fixing member is in an unlocked state, the first electric adjustment bracket and the second electric adjustment bracket are allowed to adjust the position of the electric adjustment relative to the machine arm.

2. The power device according to claim 1, characterized in that: The first electric adjustment bracket is provided with a first groove, and the second electric adjustment bracket is provided with a second groove; When the first fixing member fixes the first electrically adjustable bracket and the second electrically adjustable bracket together, the first groove and the second groove jointly form a first mounting hole, the first mounting hole is used to accommodate part of the machine arm, and the shapes of the inner walls of the first groove and the second groove match the shape of the machine arm.

3. The power device according to claim 2, characterized in that , The first electrical adjustment bracket has a first connection portion and a second connection portion extending from both ends of the first groove, respectively; the second electrical adjustment bracket has a third connection portion and a fourth connection portion extending from both ends of the second groove, respectively; The first fixing member includes two first screws, one of the first screws is used to pass through the third connecting part and then be screwed to the first connecting part, and the other first screw is used to pass through the fourth connecting part and then be screwed to the second connecting part, so as to fix the first electric adjustment bracket and the second electric adjustment bracket.

4. The power device according to claim 1, characterized in that , The motor assembly comprises a motor and a motor bracket, wherein the motor bracket is detachably connected to the machine arm, the motor is arranged on the motor bracket, and the motor is electrically connected to the electric regulator.

5. The power device according to claim 4, characterized in that , The motor bracket comprises a first motor bracket, a second motor bracket and a second fixing piece, the first motor bracket and the second motor bracket are used to clamp the machine arm, and the second fixing piece connects the first motor bracket and the second motor bracket; When the second fixing member is in a locked state, the second fixing member fixes the first motor bracket and the second motor bracket to the machine arm; When the second fixing member is in an unlocked state, the first motor bracket and the second motor bracket are allowed to adjust the position of the motor relative to the machine arm.

6. The power device according to claim 5, characterized in that , The first motor bracket is provided with a third groove, and the second motor bracket is provided with a fourth groove; When the second fixing member fixes and connects the first motor bracket and the second motor bracket, the third groove and the fourth groove are connected to form a second mounting hole, and the second mounting hole is used to accommodate a part of the machine arm.

7. The power device according to claim 6, characterized in that: The first motor bracket has a fifth connecting portion and a sixth connecting portion extending from both ends of the third groove, respectively, and the second motor bracket has a seventh connecting portion and an eighth connecting portion extending from both ends of the fourth groove, respectively; The second fixing member includes two second screws, one of the second screws is used to pass through the seventh connecting part and then be screwed to the fifth connecting part, and the other second screw is used to pass through the eighth connecting part and then be screwed to the sixth connecting part, so as to fix the first motor bracket and the second motor bracket.

8. The power device according to claim 1, characterized in that: The power device also includes a first cable, one end of which is used to be connected to an external circuit, and the other end of the first cable is detachably connected to an input end of the electric regulator.

9. The power device according to any one of claims 1 to 7, characterized in that: The power device further comprises a protective cover, which is used to wrap at least a portion of the motor assembly.

10. An unmanned aerial vehicle, characterized in that: It comprises a machine arm and a power device as described in any one of claims 1-9.

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