WO2021017004A1

WO2021017004A1 - Locking structure, propeller, power device, power assembly, and unmanned aerial vehicle

Info

Publication number: WO2021017004A1
Application number: PCT/CN2019/098923
Authority: WO
Inventors: 邱健达; 都涛
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2021-02-04
Also published as: CN112119009A

Abstract

Provided are a locking structure (100), a propeller (200), a power device (300), a power assembly, and an unmanned aerial vehicle (1000). The locking structure (100) comprises a mounting base (10) and a locking assembly (20). The locking assembly (20) comprises a movable member (22) and a stopper (24). One of the mounting base (10) and the movable member (22) is used for being mechanically coupled with the propeller (200), and the other one is used for being mechanically coupled with the power device (300). The mounting base (10) is provided with a first combination part (12), and the movable member (22) is provided with a second combination part (222). The stopper (24) is movably connected to the movable member (22) and can switch back and forth between a locking position and an unlocking position. When the stopper (24) is in the locking position, the stopper (24) abuts against at least one of the first combination part (12) and the second combination part (222) so that the first combination part (12) and the second combination part (222) are combined and connected to each other. When the stopper (24) is in the unlocking position, the stopper (24) provides a movable space for at least one of the first combination part (12) and the second combination part so that the first combination part (12) and the second combination part (222) are separable from each other.

Description

Locking structure, propeller, power unit, power unit and drone

Technical field

This application relates to the field of mechanical technology, and in particular to a locking structure, a propeller, a power device, a power component and an unmanned aerial vehicle.

Background technique

The propeller is an important part of the multi-rotor UAV, and due to the need to reduce the storage space and facilitate the replacement of the propeller, the multi-rotor UAV often uses a propeller locking mechanism that can be quickly assembled and disassembled. However, in the locking mechanism of the related art, the locking is usually realized by a rotating action, so that the operator is required to simultaneously hold the motor rotor and the propeller and rotate relative to each other in order to realize the assembly and disassembly. In this way, the tension and torque that the locking structure bears during the operation of the motor tends to loosen the locking mechanism, and the reliability is not high.

Summary of the invention

This application provides a locking structure, a propeller, a power plant, a power assembly and an unmanned aerial vehicle.

The locking structure of the embodiment of the present application is used to detachably connect the propeller to the power plant. The locking structure includes a mounting seat and a locking assembly, the locking assembly includes a movable part and a stopper, the mounting seat and the One of the movable parts is used for mechanical coupling with the propeller, and the other is used for mechanical coupling with the power device. The mounting seat is provided with a first coupling part, and the movable part is provided with a second coupling part. The stopper is movably connected with the movable part and can be switched back and forth between the locked position and the unlocked position;

When the stopper is in the locked position, the stopper abuts at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion部合连接； Part joint connection;

When the stopper is located in the unlocking position, the stopper provides a movable space for at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion The two joints can be separated.

In the locking structure of the above-mentioned embodiment, since the stopper is in the locked position and the unlocked position, the first coupling part and the second coupling part can be connected and separable respectively. In this way, when disassembling the propeller and the power unit, the locking and unlocking can be realized only by controlling the position of the stopper, without rotating the propeller and/or the power unit, which facilitates the disassembly and assembly process of the propeller and the power unit.

The propeller of the embodiment of the present application is used to provide flight power to the drone. The propeller includes a movable part, a stopper, and a hub connected to the stopper, and the movable part is used for installation with a power device The mounting seat is provided with a first coupling part, the movable part is provided with a second coupling part, the stopper is movably connected with the movable part, and can be moved back and forth between the locked position and the unlocked position Switch

In the propeller of the above-mentioned embodiment, since the stopper is in the locked position and the unlocked position, the first joint part and the second joint part can be connected and detached respectively. In this way, when disassembling the propeller and the power unit, the locking and unlocking can be realized only by controlling the position of the stopper, without rotating the propeller and/or the power unit, which facilitates the disassembly and assembly process of the propeller and the power unit.

The power plant of the embodiment of the present application includes a rotor and a mounting seat that rotates with the rotor. The mounting seat is used to cooperate with the movable part of the propeller. The mounting seat is provided with a first coupling portion. The propeller is provided with a second joining part, the propeller includes the movable part and a stopper, and the stopper is movably connected with the movable part and can be switched back and forth between a locked position and an unlocked position;

In the power plant of the above-mentioned embodiment, since the stopper is in the locked position and the unlocked position, the first coupling part and the second coupling part can be connected and separated respectively. In this way, when disassembling the propeller and the power unit, the locking and unlocking can be realized only by controlling the position of the stopper, without rotating the propeller and/or the power unit, which facilitates the disassembly and assembly process of the propeller and the power unit.

The power assembly of the embodiment of the present application includes a power device, a propeller, and the locking structure described in the foregoing embodiment, the mounting seat is installed on the power device, and the movable part is connected to the propeller.

In the power assembly of the above-mentioned embodiment, since the stopper is in the locked position and the unlocked position, the first coupling part and the second coupling part can be connected and separable respectively. In this way, when disassembling the propeller and the power unit, the locking and unlocking can be realized only by controlling the position of the stopper, without rotating the propeller and/or the power unit, which facilitates the disassembly and assembly process of the propeller and the power unit.

The drone of the embodiment of the present application includes a fuselage and an arm, the arm is connected to the fuselage, and the power assembly described in the above embodiment is installed on the arm.

In the unmanned aerial vehicle of the above-mentioned embodiment, since the stopper is in the locked position and the unlocked position, the first joint part and the second joint part can be connected and detached respectively. In this way, when disassembling the propeller and the power unit, the locking and unlocking can be realized only by controlling the position of the stopper, without rotating the propeller and/or the power unit, which facilitates the disassembly and assembly process of the propeller and the power unit.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a perspective structural view of a locking structure in a locked state according to an embodiment of the present application;

FIG. 2 is a front view of a locking structure of an embodiment of the present application in a locked state;

3 is a top view of a locking structure in a locked state according to an embodiment of the present application;

Figure 4 is a cross-sectional view of Figure 3 along the section line A-A;

Figure 5 is an enlarged view of part V in Figure 4;

FIG. 6 is a perspective structural diagram of a locking structure in an unlocked state according to an embodiment of the present application;

FIG. 7 is a front view of a locking structure of an embodiment of the present application in an unlocked state;

FIG. 8 is a top view of a locking structure of an embodiment of the present application in an unlocked state;

Figure 9 is a cross-sectional view of Figure 8 along the section line B-B;

Fig. 10 is an enlarged view of part X in Fig. 9;

Figure 11 is a perspective structural view of another locking structure in a locked state according to an embodiment of the present application;

FIG. 12 is a front view of another locking structure of the embodiment of the present application in a locked state;

Figure 13 is a top view of another locking structure of the embodiment of the present application in a locked state;

Figure 14 is a cross-sectional view of Figure 13 along the section line C-C;

Figure 15 is an enlarged view of part XV in Figure 14;

FIG. 16 is a perspective structural diagram of another locking structure in an unlocked state according to an embodiment of the present application;

FIG. 17 is a front view of another locking structure of the embodiment of the present application in an unlocked state;

FIG. 18 is a top view of another locking structure in an unlocked state according to the embodiment of the present application;

Figure 19 is a cross-sectional view of Figure 18 along the section line D-D;

Figure 20 is an enlarged view of part XX in Figure 19;

FIG. 21 is a partial enlarged view of a locking structure of an embodiment of the present application in an unlocked state;

22 is a partial enlarged view of a locking structure in a locked state according to an embodiment of the present application;

FIG. 23 is a cross-sectional view of a locking structure of an embodiment of the present application in a locked state;

24 is a cross-sectional view of a locking structure in an unlocked state according to an embodiment of the present application;

Fig. 25 is a perspective structural view of an unmanned aerial vehicle according to an embodiment of the present application.

Symbol description of main components:

UAV 1000;

The locking structure 100, the mounting seat 10, the guide post 10a, the first coupling part 12, the receiving groove 14, the opening 16, the inclined surface 18, the locking assembly 20, the movable part 22, the second coupling part 222, the first part 224, the second part 226, rotating shaft 228, stopper 24, first protrusion 242, second protrusion 244, mounting member 26, mounting hole 262, accommodating space 264, retaining member 30, elastic member 32, first mounting post 40, second Mounting post 50;

The propeller 200, the hub 210, the blade 220, the opening 230, the power unit 300, the fuselage 400, the arm 500, the first power component 610, and the second power component 620.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following embodiments described with reference to the accompanying drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation to the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be understood as a restriction on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more than two, unless otherwise specifically defined.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connect, or connect in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the "on" or "under" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them. Moreover, "above", "above" and "above" the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature. The "below", "below" and "beneath" the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

The disclosure herein provides many different embodiments or examples for realizing different structures of the application. To simplify the disclosure of this application, the components and settings of specific examples are described herein. Of course, they are only examples and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

Please refer to FIG. 1 to FIG. 20, the locking structure 100 of the embodiment of the present application is used to detachably connect the propeller 200 and the power device 300. The locking structure 100 includes a mounting base 10 and a locking assembly 20. The locking assembly 20 includes a movable part 22 and a stop part 24. One of the mounting base 10 and the movable part 22 is used for mechanical coupling with the propeller 200, and the other is used for mechanical coupling with the power device 300. The mounting base 10 is provided with a first coupling portion 12, and the movable member 22 is provided with a second coupling portion 222. The stopper 24 can be movably connected with the movable member 22, and can be switched back and forth between a locked position and an unlocked position. Specifically, the stopper 24 may be provided on the mounting base 10 or on the hub 210 of the propeller 200. For example, when the stopper 24 is provided on the mounting base 10, the stopper 24 and the mounting base 24 form an independent quick-release assembly; when the stopper 24 is provided on the hub 210 of the propeller 200, the stopper 24 and The movable part 22 forms an independent quick-release assembly.

When the stopper 24 is in the locked position, the stopper 24 abuts at least one of the first coupling portion 12 and the second coupling portion 222, so that the first coupling portion 12 and the second coupling portion 222 are coupled and connected.

When the stopper 24 is in the unlocked position, the stopper 24 provides a movable space for at least one of the first coupling portion 12 and the second coupling portion 222 so that the first coupling portion 12 and the second coupling portion 222 can be separated.

Specifically, in the illustrated embodiment, the movable member 22 is mechanically coupled with the propeller 200, and the mounting base 10 is mechanically coupled with the power device 300. Mechanical coupling may refer to the two directly fixedly connected, indirectly fixedly connected through other components, or detachably connected. The fixed connection includes integral molding or multiple components assembled together. For example, the mounting base 10 may be fixedly installed on the power device 300 by a fixing member, which includes fixing elements such as screws and pins. The power device 300 may be a motor, and the motor may be an outer rotor motor or an inner rotor motor. The mounting base 10 is installed on the rotor of the motor and can rotate with the following rotor. In this way, the locking structure 100 can drive the propeller 200 to rotate when the power device 300 rotates. In other embodiments, the movable part 22 may be mechanically coupled with the power device 300, and the mounting base 10 may be mechanically coupled with the propeller 200.

The stopper 24 may be provided on the hub 210 of the propeller 200. Specifically, in the illustrated embodiment, the stopper 24 is slidably provided on the hub 210 of the propeller 200. Specifically, the middle of the hub 210 of the propeller 200 is provided with a through hole, and the middle of the stopper 24 passes through the through hole of the hub 210 and is slidable in the through hole of the hub 210. The through hole extends along the rotation axis parallel to the hub 210 of the propeller 200.

Of course, in other embodiments, the stopper 24 may be provided on the mounting base 10. Please refer to FIGS. 23 and 24. Specifically, in the illustrated embodiment, the stopper 24 is slidably mounted on the mounting base 10. Specifically, the mounting base 10 is provided with a guide post 10 a, and the stopper is slidably sleeved on the guide post 10 a of the mounting base 10. When the power device 300 is a motor, the guide post 10a may be a motor shaft, or the guide post 10a may be a convex post extending parallel to the rotation axis of the hub 210 of the propeller 200.

It is understandable that, in some embodiments, one of the mounting base 10 and the movable part 22 is the rotor shell of the motor or a component that rotates with the rotor of the motor, and the other is the hub 210 of the propeller 200 or the hub 210. There are no restrictions on the specific setting of the components that rotate together.

In this application, the locking structure 100 includes a locked state and an unlocked state. Please refer to FIGS. 1 to 5 and 11 to 15, when the locking structure 100 is in the locked state, the stopper 24 is in the locked position, and the stopper 24 abuts the second coupling portion 222 so that the first coupling portion 12 and The second coupling portion 222 is combined and connected to connect the movable part 22 and the mounting base 10. At this time, the stopper 24 abuts the movable part 22 to restrict the movement of the movable part 22. Please refer to FIGS. 6-10 and 16-20. When the locking structure 100 is in the unlocked state, the stopper 24 is in the unlocked position, and the stopper 24 is separated from the second coupling portion 222 to provide the second coupling portion 222 Activity space. As a result, the movable member 22 can be separated from the mounting base 10, and the propeller 200 is in a detachable state. In other embodiments, when the stopper 24 is in the locked position, it can resist the first coupling portion 12 or simultaneously the first coupling portion 12 and the second coupling portion 222. When the stopper 24 is in the unlocked position, it can provide a movable space for the movement of the first joining portion 12 or the movement of the first joining portion 12 and the second joining portion 222.

In the embodiment shown in the figure, when the propeller 200 is installed, the stopper 24 can be moved to the unlocked position, and the propeller 200 can be installed in the mounting base 10 so that the second coupling portion 222 of the movable member 22 and the second joint 222 of the mounting base 10 A coupling part 12 cooperates, and then the stopper 24 returns to the locked position, and the propeller 200 is locked against the movable part 22. When the propeller 200 is removed, the stopper 24 can be moved to the unlocked position. At this time, the movable member 22 can be moved, and the second coupling portion 222 of the movable member 22 can be separated from the first coupling portion 12 of the mounting seat 10, so that the propeller 200 can be separated. Remove from the mounting base 10.

Therefore, in the locking structure 100 of the embodiment of the present application, since the stopper 24 is in the locked position and the unlocked position, the first coupling portion 12 and the second coupling portion 222 can be connected and separable respectively. In this way, when disassembling the propeller 200 and the power unit 300, only need to control the position of the stopper 24 to achieve locking and unlocking, without rotating the propeller and/or the power unit 300, which facilitates the disassembly and assembly of the propeller 200 and the power unit 300 process.

In some embodiments, the first coupling portion 12 is provided with protrusions and/or depressions, and the second coupling portion 222 is provided with depressions and/or protrusions. When the first coupling portion 12 and the second coupling portion 222 are coupled and connected , The protrusion is at least partially contained in the recess.

It can be understood that the first joining portion 12 and the second joining portion 222 are connected through the cooperation of the protrusion and the recess, and the protrusion and the recess can be fitted with each other. In the illustrated embodiment, the first coupling portion 12 is provided with recesses, and the second coupling portion 222 is provided with protrusions. In other embodiments, the first coupling portion 12 may be provided with protrusions, and the second coupling portion 222 may be provided with recesses. Of course, it is also possible that the first coupling portion 12 is provided with protrusions and depressions, and the second coupling portion 222 is provided with depressions and protrusions.

In some embodiments, the movement of the stopper 24 includes sliding or rotating.

It can be understood that the stopper 24 can be switched back and forth between the locked position and the unlocked position by sliding or rotating. In some embodiments, the stopper 24 can slide along the axial direction of the propeller 200 to resist or disengage the second coupling portion 222. In other embodiments, the stopper 24 can rotate about the central axis of the propeller 200 as the rotation axis 228. Specifically, the mounting seat 10 is provided with a threaded hole, and the stopper 24 is provided with a threaded part that matches with the threaded hole. Of course, it is also possible that the hub 210 of the propeller 200 is provided with a threaded hole, and the stopper 24 is provided with a threaded part matching the threaded hole. The stopper 24 rotates with the central axis of the propeller 200 as the rotating shaft 228 so that the threaded part and the threaded hole are tightened or loosened to resist or disengage the second coupling part 222.

Please refer to FIG. 5, FIG. 10, FIG. 15 and FIG. 20. In some embodiments, the mounting base 10 is provided with a receiving groove 14. The stopper 24 is at least partially located in the receiving groove 14, and the stopper 24 can move in the receiving groove 14. In this way, the receiving slot 14 provides a movable space for the stopper 24 to move, so that the stopper 24 can resist the second coupling portion 222 or separate from the second coupling portion 222.

Furthermore, an opening 16 is opened at the top of the receiving groove 14. The movable member 22 penetrates through the opening 16, and the edge of the opening 16 is provided with a downward slope 18. It can be understood that the edge of the opening 16 of the mounting seat 10 is provided with a downwardly inclined inclined surface 18, so that the upper end of the receiving groove 14 has a larger radial dimension, which is convenient for the movable part 22 to pass through the opening 16 so that the movable part 22 is at least partially located in the receiving groove. 14 in. In the illustrated embodiment, the movable part 22 is mechanically coupled with the propeller 200. The inclined surface 18 functions as a guide, that is, the movable member 22 can slide into the receiving groove 14 along the inclined surface 18.

In other embodiments, the propeller 200 is provided with an opening 230. The opening 230 is used to provide a space for operating the movable part 22. For example, the opening 230 can be inserted into a tool to operate the movable part 22. Specifically, the opening 230 is opened in the hub 210. When the stopper 24 is in the unlocked position, a tool can be inserted into the inclined surface 18 from the opening 230 to push the movable member 22 away, thereby separating the first coupling portion 12 from the second coupling portion 222.

In some embodiments, the movable member 22 has elasticity. When the stopper 24 abuts at least one of the second coupling portion 222 and the first coupling portion 12, it can restrict at least one of the second coupling portion 222 and the first coupling portion 12 from being elastically deformed. In this way, the second coupling portion 222 and/or the first coupling portion 12 provide elastic force so that the stopper 24 can resist the movable part 22 to limit the movement of the movable part 22.

In the illustrated embodiment, the stopper 24 abuts the second coupling portion 222, and the second coupling portion 222 can be elastically deformed. In other embodiments, the stopper 24 abuts the first coupling portion 12, and the first coupling portion 12 can be elastically deformed. Of course, it is also possible that the stopper 24 simultaneously resists the first joining portion 12 and the second joining portion 222, and both the first joining portion 12 and the second joining portion 222 can be elastically deformed. In the examples shown in FIGS. 1 to 10, the movable member 22 is used for fixed connection with the propeller 200. In the example of FIGS. 11-20, the movable part 22 is used to movably connect with the propeller 200.

Please refer to FIGS. 5, 10, 15 and 20. In some embodiments, the movable member 22 includes a first member 224 and a second member 226 that are connected. When the stopper 24 is in the locked position, the stopper 24 abuts one of the first member 224 and the second member 226 to connect the first joining portion 12 and the second joining portion 222 together. When the stopper 24 is in the unlocked position, the stopper 24 abuts the other of the first member 224 and the second member 226 to separate the first joining portion 12 and the second joining portion 222. The second piece 226 can slide into the receiving slot 14 along the inclined surface 18.

It can be understood that, in the embodiment of FIGS. 1 to 10, the second member 226 includes the second coupling portion 222. In the embodiment of FIGS. 11-20, the first member 224 includes the second coupling portion 222. Specifically, when the stopper 24 is in the locked position, in the example of FIG. 5, the stopper 24 abuts the second member 226 to connect the first coupling portion 12 and the second coupling portion 222; In the example, the stopper 24 abuts the first member 224 to connect the first joining portion 12 and the second joining portion 222 together. When the stopper 24 is in the unlocked position, in the example of FIG. 10, the stopper 24 abuts the first piece 224 to separate the first joining portion 12 and the second joining portion 222; in the example of FIG. 20, the stop The stopper 24 abuts the second member 226 to separate the first coupling portion 12 and the second coupling portion 222.

Referring to FIGS. 11-20, in some embodiments, a rotating shaft 228 is formed at the joint of the first piece 224 and the second piece 226. The stopper 24 is used to drive the movable member 22 to rotate around the rotating shaft 228 when switching back and forth between the locked position and the unlocked position.

In this way, the movable member 22 can be moved through rotation. In other embodiments, the movable member 22 can be moved by elastic deformation, as shown in FIGS. 1 to 10. Of course, the movable member 22 can also be moved by sliding.

In some embodiments, the locking assembly 20 includes a mount 26. The mounting member 26 is provided with a mounting hole 262, and the stop member 24 is penetrated with a mounting hole 262.

It can be understood that the stopper 24 penetrates the mounting hole 262 of the mounting member 26, and the mounting member 26 can guide the movement of the stopper 24. The stopper 24 can slide or rotate on the mounting member 26. In some embodiments, the mounting part 26 and the movable part 22 are integrally connected. More specifically, the mounting member 26 and the movable member 22 are integrated with the hub 210 of the propeller 200.

In some embodiments, the locking structure 100 includes a retaining member 30 for keeping the stopper 24 in the locked position or the unlocked position. The holding member 30 is connected to the mounting member 26.

It can be understood that the retaining member 30 is located between the mounting member 26 and the stopper 24, so that the stopper 24 is maintained in the locked position or the unlocked position, so as to ensure that the propeller 200 has no risk of loosening during operation. The holding member 30 includes at least one of the following structures: an elastic member 32 and a magnetic member. That is, the holding member 30 may only include the elastic member 32, may only include the magnetic member, or may include both the elastic member 32 and the magnetic member. The elastic member 32 can use its own elastic force to keep the stopper 24 in the locked position or the unlocked position. The magnetic parts can use the magnetic poles of the same name to repel each other, and the principle that the magnetic poles of different names are mutually attracted to keep the stopper 24 in the locked position or the unlocked position.

In some embodiments, the retaining member 30 includes an elastic member 32. One end of the elastic member 32 abuts the mounting member 26, and the other end abuts the stop member 24 to keep the stop member 24 in the locked position or the unlocked position.

Specifically, in some embodiments, the wall of the mounting hole 262 is provided with a receiving space 264, the top of the stopper 24 is provided with a first bump 242, and the elastic member 32 is partially received in the receiving space 264. The elastic member 32 abuts the bottom surface of the receiving space 264 and the bottom surface of the first protrusion 242 to keep the stopper 24 in the locked position or the unlocked position. In the example of FIGS. 5 and 15, the elastic member 32 may be a compression spring, and the elastic member 32 keeps the stopper 24 in the locked position. The elastic member 32 can be compressed by pressing the first protrusion 242 on the top of the stopper 24 , The stopper 24 is switched from the locked position to the unlocked position. In other embodiments, the elastic member 32 can be a tension spring, and the elastic member 32 can keep the stopper 24 in the unlocked position. The first protrusion 242 on the top of the stopper 24 can be pulled up to stretch the elastic member 32. A spacer is added between the first protrusion 242 and the movable part 22 or the mounting part 26 to switch the stopper 24 from the unlocked position to the locked position.

In other embodiments, the bottom of the stopper 24 is provided with a second protrusion 244, and the elastic member 32 abuts the bottom surface of the mounting member 26 and the top surface of the second protrusion 244 to keep the stopper 24 in the locked position Or unlock position. It can be understood that the elastic member 32 is located in the receiving groove 14 of the mounting base 10. In the example of FIG. 21, the elastic member 32 may be a compression spring, and the elastic member 32 may keep the stopper 24 in the unlocked position. The first protrusion 242 on the top of the stopper 24 can be pulled up to compress the elastic member 32 and A spacer is added between the first protrusion 242 and the movable part 22 to switch the stopper 24 from the unlocked position to the locked position. In other embodiments, the elastic member 32 can be a tension spring, and the elastic member 32 can keep the stopper 24 in the locked position. The elastic member 32 can be stretched by pressing the first protrusion 242 on the top of the stopper 24, The stopper 24 is switched from the locked position to the unlocked position.

In other embodiments, the elastic member 32 is located in the receiving groove 14 of the mounting base 10, and the elastic member 32 abuts the bottom surface of the stopper 24 and the bottom surface of the receiving groove 14 to keep the stopper 24 in the locked position or the unlocked position . It can be understood that the bottom surface of the stopper 24 can be provided with a first mounting post 40, and the bottom surface of the receiving groove 14 can be provided with a second mounting post 50. Two ends of the elastic member 32 are respectively sleeved on the first mounting post 40 and the second mounting post 50 to prevent the elastic member 32 from being displaced. The interval setting between the first mounting post 40 and the second mounting post 50 must ensure that the stopper 24 can be switched back and forth between the locked position and the unlocked position, or at least one of the first mounting post 40 and the second mounting post 50 can be set It is hollow, so that the first mounting post 40 and the second mounting post 50 can be sleeved with each other to ensure that the stopper 24 can switch back and forth between the locked position and the unlocked position.

In the example of FIG. 22, the elastic member 32 can be a compression spring, and the elastic member 32 can keep the stopper 24 in the locked position. The elastic member 32 can be compressed by pressing the first protrusion 242 on the top of the stopper 24. The stopper 24 is switched from the locked position to the unlocked position. In other embodiments, the elastic member 32 can be a tension spring, and the elastic member 32 can keep the stopper 24 in the unlocked position. The first protrusion 242 on the top of the stopper 24 can be pulled up to stretch the elastic member 32. A spacer is added between the first protrusion 242 and the movable part 22 to switch the stopper 24 from the unlocked position to the locked position.

In some embodiments, the locking assembly 20 includes a connector. The connecting piece connects the stop piece 24 and the movable piece 22, and the stop piece 24 is used to drive the movable piece 22 to move through the connecting piece when switching back and forth between the locked position and the unlocked position to make the first joining portion 12 and the second joining portion 222 Combine connection and separation.

In this way, the stopper 24 is connected to the movable member 22 through the connecting member, and the stopper 24 drives the movable member 22 to move through the connecting member.

It should be noted that in this application, the mounting base 10 and the propeller 200 will cooperate with other structures to transmit the torque of the power device 300. For example, the mounting base 10 is provided with a positioning protrusion, and the locking assembly 20 is provided with a positioning protrusion. A matching positioning groove, or a positioning groove is provided on the mounting base 10, the locking assembly 20 is provided with a positioning protrusion that matches the positioning groove, and the positioning protrusion is matched with the positioning groove to transmit torque. At this time, the second coupling portion 222 of the movable member 22 and the first coupling portion 12 of the mounting seat 10 cooperate to transmit only the pulling force of the propeller 200.

Referring to FIGS. 1 to 20, the propeller 200 in the embodiment of the present application is used to provide flight power for the drone 1000. The propeller 200 includes a movable part 22, a stopper 24 and a propeller hub 210 connected with the stopper 24. The movable part 22 is used to cooperate with the mounting seat 10 of the power device 300. The mounting base 10 is provided with a first coupling portion 12, and the movable member 22 is provided with a second coupling portion 222. The stopper 24 is movably provided on the movable member 22 and can be switched back and forth between the locked position and the unlocked position.

In the propeller 200 of the above embodiment, since the stopper 24 is in the locked position and the unlocked position, the first coupling portion 12 and the second coupling portion 222 can be coupled, connected, and separable, respectively. In this way, when disassembling the propeller 200 and the power unit 300, only need to control the position of the stopper 24 to achieve locking and unlocking without rotating the propeller and/or power unit 300, which facilitates the disassembly and assembly of the propeller 200 and the power unit 300 process.

It should be noted that the movable member 22, the stopper 24, and the mounting seat 10 are the movable member 22, the stopper 24, and the mounting seat 10 in the locking structure 100 of the above embodiment. The movable part 22 is fixedly connected to the hub 210 or movably connected. The propeller 200 further includes the mounting member 26, the holding member 30, and the connecting member in the locking structure 100 of the above embodiment. The propeller 200 also includes a blade 220 connected to a hub 210. The explanations and beneficial effects of the locking structure 100 of the foregoing embodiment are also applicable to the propeller 200 of the embodiment of the present application, and to avoid redundancy, the detailed description is omitted here.

Referring to FIGS. 1 to 20, the power device 300 of the embodiment of the present application includes a rotor and a mounting seat 10 that rotates with the rotor. The mounting base 10 is used to cooperate with the movable part 22 of the propeller 200. The mounting base 10 is provided with a first coupling portion 12, and the movable member 22 is provided with a second coupling portion 222. The propeller 200 includes a movable part 22 and a stopper 24. The stopper 24 is movably provided on the movable member 22 and can be switched back and forth between the locked position and the unlocked position.

In the power plant 300 of the foregoing embodiment, since the stopper 24 is in the locked position and the unlocked position, the first coupling portion 12 and the second coupling portion 222 can be coupled, connected and separable, respectively. In this way, when disassembling the propeller 200 and the power unit 300, only need to control the position of the stopper 24 to achieve locking and unlocking, without rotating the propeller and/or the power unit 300, which facilitates the disassembly and assembly of the propeller 200 and the power unit 300 process.

It should be noted that the movable member 22, the stopper 24, and the mounting seat 10 are the movable member 22, the stopper 24, and the mounting seat 10 in the locking structure 100 of the above embodiment. The propeller 200 further includes the mounting member 26, the holding member 30, and the connecting member in the locking structure 100 of the above embodiment. The explanations and beneficial effects of the locking structure 100 of the above embodiment are also applicable to the power device 300 of the embodiment of the present application. To avoid redundancy, detailed explanations are omitted here.

The power assembly of the embodiment of the present application includes a power plant 300, a propeller 200, and the locking structure 100 of the above embodiment. The mounting base 10 is installed on the power plant 300, and the movable part 22 is connected with the propeller 200.

In the power assembly of the above embodiment, since the stopper 24 is in the locked position and the unlocked position, the first coupling portion 12 and the second coupling portion 222 can be coupled, connected and separable, respectively. In this way, when disassembling the propeller 200 and the power unit 300, only need to control the position of the stopper 24 to achieve locking and unlocking, without rotating the propeller and/or the power unit 300, which facilitates the disassembly and assembly of the propeller 200 and the power unit 300 process.

Please refer to FIG. 25. The drone 1000 of the embodiment of the present application includes a fuselage 400 and an arm 500. The arm 500 is connected to the fuselage 400, and the power assembly of the above embodiment is installed on the arm 500.

In the unmanned aerial vehicle 1000 of the above embodiment, since the stopper 24 is in the locked position and the unlocked position, the first coupling portion 12 and the second coupling portion 222 can be coupled, connected and separable, respectively. In this way, when disassembling the propeller 200 and the power unit 300, only need to control the position of the stopper 24 to achieve locking and unlocking, without rotating the propeller and/or the power unit 300, which facilitates the disassembly and assembly of the propeller 200 and the power unit 300 process.

It can be understood that the drone 1000 includes a plurality of arms 500, and each arm 500 is equipped with a power unit including a propeller 200. When the power device 300 of the power unit rotates, the propeller 200 can be driven to rotate, thereby being the drone 1000. Provide flight power. In the illustrated embodiment, the drone 1000 is a multi-rotor aircraft.

In the example of FIG. 25, the number of power components is multiple, including a first power component 610 and a second power component 620. The power device 300 of the first power component 610 is used to drive the propeller 200 to rotate in a clockwise direction, and the power device 300 of the second power component 620 is used to drive the propeller 200 to rotate in a counterclockwise direction.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples", etc. means to combine the embodiments The specific features, structures, materials, or characteristics described by the examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A locking structure is used to detachably connect a propeller to a power plant. The locking structure includes a mounting seat and a locking assembly, the locking assembly includes a movable part and a stopper, the mounting seat and the One of the movable parts is used for mechanical coupling with the propeller, the other is used for mechanical coupling with the power device, the mounting seat is provided with a first coupling part, and the movable part is provided with a second coupling part, so The stopper is movably connected with the movable part, and can be switched back and forth between a locked position and an unlocked position;

When the stopper is in the locked position, the stopper abuts at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion部合连接； Part joint connection;

When the stopper is located in the unlocking position, the stopper provides a movable space for at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion The two joints can be separated.
The locking structure according to claim 1, wherein the first coupling portion is provided with protrusions and/or depressions, the second coupling portion is provided with depressions and/or protrusions, and the first coupling portion When the portion is combined with the second connecting portion, the protrusion is at least partially contained in the recess.
The locking structure according to claim 1, wherein the movement of the stopper includes sliding or rotating.
The locking structure according to claim 3, wherein the stopper can slide along the axial direction of the propeller.
The locking structure according to claim 3, wherein the stopper can rotate about the central axis of the propeller as a rotation axis.
The locking structure according to claim 5, wherein the mounting seat is provided with a threaded hole, and the stopper is provided with a threaded part that matches with the threaded hole;

Or the hub of the propeller is provided with a threaded hole, and the stopper is provided with a threaded part that matches with the threaded hole.
The locking structure according to claim 1, wherein the mounting seat is provided with a receiving groove, the stopper is at least partially located in the receiving groove, and the stopper can be in the receiving groove activity.
7. The locking structure according to claim 7, wherein the top of the receiving groove is provided with an opening, the movable part passes through the opening, and the edge of the opening is provided with a downwardly inclined slope.
The locking structure according to claim 1, wherein the movable member has elasticity;

Or/and, the stopper is provided on the mounting seat or on the hub of the propeller.
The locking structure according to claim 9, wherein the movable part is used to be fixedly connected to the propeller, and the stopper resists at least one of the second joint part and the first joint part. In one case, at least one of the second coupling portion and the first coupling portion can be restricted from being elastically deformed.
The locking structure according to claim 9, wherein the movable part is used to movably connect with the propeller, and the stopper resists the second joint part and the first joint part. When there is at least one, the elastic deformation of at least one of the second coupling portion and the first coupling portion can be restricted.
The locking structure according to claim 1, wherein the movable part comprises a first part and a second part that are connected, and when the stopper is in the locked position, the stopper resists the One of the first piece and the second piece is such that the first joining portion and the second joining portion are combined and connected. When the stopper is in the unlocking position, the stopper resists The other of the first piece and the second piece separates the first joining part and the second joining part.
The locking structure according to claim 12, wherein a rotating shaft is formed at the connection of the first member and the second member, and the stopper is used to switch between the locked position and the unlocked position. When switching back and forth, the movable part is driven to rotate around the rotating shaft.
The locking structure according to claim 1, wherein the locking assembly comprises a mounting member, the mounting member is provided with a mounting hole, and the stopping member penetrates the mounting hole.
The locking structure according to claim 14, wherein the locking structure comprises a holder for keeping the stopper in the locked position or the unlocked position, and the holder is connected to the mounting Pieces.
The locking structure according to claim 15, wherein the retaining member includes at least one of the following structures: an elastic member and a magnetic member.
The locking structure according to claim 15, wherein the retaining member comprises an elastic member, one end of the elastic member abuts the mounting member, and the other end abuts the stopper to make the stopper The piece remains in the locked position or the unlocked position.
The lock structure according to claim 17, wherein the wall of the mounting hole is provided with a receiving space, the top of the stopper is provided with a first bump, and the elastic member is partially received in the In the accommodating space, the elastic member abuts the bottom surface of the accommodating space and the bottom surface of the first protrusion to keep the stopper in the locked position or the unlocked position.
The locking structure according to claim 17, wherein the bottom of the stopper is provided with a second protrusion, and the elastic member resists the bottom surface of the mounting member and the top surface of the second protrusion So as to keep the stopper in the locked position or the unlocked position.
The locking structure according to claim 1, wherein the locking assembly comprises a connecting piece, the connecting piece connects the stopper and the movable part, and the stopper is used to be in the locked position When switching back and forth between the unlocked position and the unlocked position, the connecting member drives the movable member to move so as to connect and separate the first connecting portion and the second connecting portion.
The locking structure according to claim 1, wherein the power device is a motor, and one of the mounting seat and the movable part is a rotor shell of the motor or a component that rotates with the rotor of the motor , The other is the hub of the propeller or a component that rotates with the hub.
The locking structure according to claim 21, wherein the motor is an outer rotor motor or an inner rotor motor.
A propeller, the propeller is used to provide flight power to the UAV, characterized in that the propeller includes a movable part, a stopper and a hub connected with the stopper, the movable part is used for The mounting seat of the power unit is matched, the mounting seat is provided with a first coupling part, the movable part is provided with a second coupling part, the stopper is movably connected with the movable part, and can be in the locked position and unlocked Switch back and forth between positions;

When the stopper is in the locked position, the stopper abuts at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion部合连接； Part joint connection;

When the stopper is located in the unlocking position, the stopper provides a movable space for at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion The two joints can be separated.
The propeller according to claim 23, wherein the first coupling portion is provided with protrusions and/or depressions, the second coupling portion is provided with depressions and/or protrusions, and the first coupling portion When combined with the second connecting portion, the protrusion is at least partially contained in the recess.
The propeller according to claim 23, wherein the movement of the stopper includes sliding or rotating.
The propeller according to claim 25, wherein the stopper can slide along the axial direction of the propeller.
The propeller according to claim 25, wherein the stopper can rotate about the central axis of the propeller as a rotation axis.
The propeller according to claim 27, wherein the mounting seat is provided with a threaded hole, and the stopper is provided with a threaded part matching the threaded hole;

Or the hub is provided with a threaded hole, and the stopper is provided with a threaded part that matches with the threaded hole.
The propeller according to claim 23, wherein the mounting seat is provided with a receiving groove, the stopper is at least partially located in the receiving groove, and the stopper can move in the receiving groove .
The propeller according to claim 29, wherein the top of the receiving groove is provided with an opening, the movable part passes through the opening, and the edge of the opening is provided with a downwardly inclined slope.
The propeller according to claim 23, wherein the movable part has elasticity;

Or/and, the stopper is provided on the mounting seat or the hub.
The propeller according to claim 31, wherein the movable part is used to be fixedly connected to the hub, and the stopper resists at least one of the second joint part and the first joint part. In one case, at least one of the second coupling portion and the first coupling portion can be restricted from being elastically deformed.
The propeller according to claim 31, wherein the movable member is configured to be movably connected with the hub, and the stop member resists the second joint part and the first joint part. When there is at least one, the elastic deformation of at least one of the second coupling portion and the first coupling portion can be restricted.
The propeller according to claim 23, wherein the movable part comprises a first part and a second part that are connected, and when the stopper is in the locked position, the stopper resists the first One piece is connected to one of the second pieces to connect the first joining portion and the second joining portion. When the stopper is in the unlocking position, the stopper resists the The other of the first piece and the second piece separates the first joining part and the second joining part.
The propeller according to claim 34, wherein a rotating shaft is formed at the connection of the first part and the second part, and the stopper is used to move between the locked position and the unlocked position. When switching back and forth, the movable part is driven to rotate around the rotating shaft.
The propeller according to claim 23, wherein the propeller comprises a mounting member, the mounting member is provided with a mounting hole, and the stopper penetrates the mounting hole.
The propeller according to claim 36, wherein the propeller comprises a holder for keeping the stopper in the locked position or the unlocked position, and the holder is connected to the mounting member.
The propeller according to claim 37, wherein the retaining member comprises at least one of the following structures: an elastic member and a magnetic member.
The propeller according to claim 37, wherein the retaining member comprises an elastic member, one end of the elastic member abuts the mounting member, and the other end abuts the stopper so that the stopper Keep in the locked position or the unlocked position.
The propeller according to claim 39, wherein the wall of the mounting hole is provided with a receiving space, the top of the stopper is provided with a first bump, and the elastic member is partially received in the receiving space. Space, the elastic member abuts against the bottom surface of the accommodating space and the bottom surface of the first protrusion to keep the stopper in the locked position or the unlocked position.
The propeller according to claim 39, wherein the bottom of the stopper is provided with a second protrusion, and the elastic member resists the bottom surface of the mounting member and the top surface of the second protrusion to Keep the stopper in the locked position or the unlocked position.
The propeller according to claim 23, wherein the propeller comprises a connecting piece, the connecting piece connects the stopper and the movable part, and the stopper is used in the locked position and unlocked When the positions are switched back and forth, the connecting member drives the movable member to move to connect and separate the first connecting portion and the second connecting portion.
The propeller according to claim 23, wherein the power device is a motor, the mounting seat is a rotor shell of the motor or a component that rotates with the rotor of the motor, and the movable part is the A hub or a component that rotates with the hub.
The propeller according to claim 43, wherein the motor is an outer rotor motor or an inner rotor motor.
A power plant, characterized in that it comprises a rotor and a mounting seat that rotates with the rotor, the mounting seat is used to cooperate with the movable part of the propeller, the mounting seat is provided with a first coupling part, the The movable part is provided with a second coupling part, the propeller includes the movable part and a stopper, the stopper is movably connected to the movable part and can be switched back and forth between a locked position and an unlocked position;

When the stopper is in the locked position, the stopper abuts at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion部合连接； Part joint connection;

When the stopper is located in the unlocking position, the stopper provides a movable space for at least one of the first coupling portion and the second coupling portion, so that the first coupling portion and the second coupling portion The two joints can be separated.
The power plant according to claim 45, wherein the first coupling portion is provided with protrusions and/or depressions, the second coupling portion is provided with depressions and/or protrusions, and the first coupling portion is provided with depressions and/or protrusions. When the portion is combined with the second connecting portion, the protrusion is at least partially contained in the recess.
The power plant according to claim 45, wherein the movement of the stopper includes sliding or rotating.
The power plant according to claim 47, wherein the stopper can slide along the axial direction of the propeller.
The power plant according to claim 47, wherein the stopper can rotate about the central axis of the propeller as a rotation axis.
The power plant according to claim 49, wherein the mounting seat is provided with a threaded hole, and the stopper is provided with a threaded part that matches with the threaded hole;

Or the hub of the propeller is provided with a threaded hole, and the stopper is provided with a threaded part that matches with the threaded hole.
The power plant according to claim 45, wherein the mounting seat is provided with a receiving groove, the stopper is at least partially located in the receiving groove, and the stopper can be in the receiving groove activity.
The power plant according to claim 51, wherein the top of the receiving slot is provided with an opening, the movable part passes through the opening, and the edge of the opening is provided with a downwardly inclined slope.
The power plant according to claim 52, wherein the movable part is elastic;

Or/and, the stopper is provided on the mounting seat or on the hub of the propeller.
The power plant according to claim 53, wherein the movable part is used to be fixedly connected to the propeller, and the stopper resists at least one of the second joint part and the first joint part. In one case, at least one of the second coupling portion and the first coupling portion can be restricted from being elastically deformed.
The power plant according to claim 53, wherein the movable part is used to movably connect with the propeller, and the stopper resists the second joint part and the first joint part. When there is at least one, the elastic deformation of at least one of the second coupling portion and the first coupling portion can be restricted.
The power plant according to claim 45, wherein the movable part comprises a first part and a second part connected, and when the stopper is in the locked position, the stopper abuts against the One of the first piece and the second piece is such that the first joining portion and the second joining portion are combined and connected. When the stopper is in the unlocking position, the stopper resists The other of the first piece and the second piece separates the first joining part and the second joining part.
The power plant according to claim 56, wherein a rotating shaft is formed at the connection of the first part and the second part, and the stopper is used to switch between the locked position and the unlocked position. When switching back and forth, the movable part is driven to rotate around the rotating shaft.
The power plant according to claim 45, wherein the propeller includes a mounting member, the mounting member is provided with a mounting hole, and the stopper penetrates the mounting hole.
The power plant according to claim 58, wherein the propeller includes a holder for keeping the stopper in the locked position or the unlocked position, and the holder is connected to the mounting member .
The power plant according to claim 59, wherein the retaining member comprises at least one of the following structures: an elastic member and a magnetic member.
The power plant according to claim 59, wherein the retaining member comprises an elastic member, one end of the elastic member abuts the mounting member, and the other end abuts the stopper to make the stopper The piece remains in the locked position or the unlocked position.
The power plant of claim 61, wherein the wall of the mounting hole is provided with a receiving space, the top of the stopper is provided with a first bump, and the elastic member is partially received in the In the accommodating space, the elastic member resists the bottom surface of the accommodating space and the bottom surface of the first protrusion to keep the stopper in the locked position or the unlocked position.
The power plant according to claim 61, wherein the bottom of the stopper is provided with a second protrusion, and the elastic member resists the bottom surface of the mounting member and the top surface of the second protrusion So as to keep the stopper in the locked position or the unlocked position.
The power plant according to claim 45, wherein the propeller comprises a connecting piece, the connecting piece connects the stopper and the movable part, and the stopper is used to connect the stopper in the locked position and When the unlocking position is switched back and forth, the connecting member drives the movable member to move so as to connect and separate the first connecting portion and the second connecting portion.
The power plant according to claim 45, wherein the power plant is a motor, the mounting seat is a rotor shell of the motor or a component that rotates with the rotor of the motor, and the movable part is a motor. The hub of the propeller or a component that rotates with the hub.
The power plant according to claim 65, wherein the motor is an outer rotor motor or an inner rotor motor.
A power assembly, characterized by comprising a power plant, a propeller and the locking structure according to any one of claims 1-22, the mounting seat is installed on the power plant, and the movable part is connected with the propeller.
An unmanned aerial vehicle, characterized by comprising a fuselage and an arm, the arm is connected to the fuselage, and the power assembly according to claim 67 is installed on the arm.
The unmanned aerial vehicle according to claim 68, wherein the power components are multiple, including a first power component and a second power component, and the power device of the first power component is used to drive the propeller When rotating in a clockwise direction, the power device of the second power assembly is used to drive the propeller to rotate in a counterclockwise direction.
The drone of claim 68, wherein the drone is a multi-rotor aircraft.