CN116490431A

CN116490431A - Propeller assembly, power system and unmanned aerial vehicle

Info

Publication number: CN116490431A
Application number: CN202180075454.3A
Authority: CN
Inventors: 刘以奋; 桑晓庆; 孟祥争
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2023-07-25
Also published as: WO2022151219A1

Abstract

Screw subassembly (10), driving system (100) and unmanned aerial vehicle (1000), screw subassembly (10) include screw (11) and first cooperation spare (12), and first cooperation spare (12) are installed on screw (11), and first cooperation spare (12) are used for cooperating with second cooperation spare (30) of installing on mount pad (20) in order to indicate screw (11) and mount pad (20) assorted when first cooperation spare (12) are close to and do not contact second cooperation spare (30).

Description

Propeller assembly, power system and unmanned aerial vehicle

Technical Field

The application relates to the technical field of unmanned aerial vehicles, in particular to a propeller assembly, a power system and an unmanned aerial vehicle.

Background

In the related art, a propeller of an unmanned aerial vehicle generally includes a reverse propeller and a forward propeller, which are required to be mounted on a reverse motor and a forward motor, respectively. However, in the process of installing the propeller, the user cannot judge what type of propeller is being installed, and the user only knows that the type of the propeller is not right when the situation that the propeller is not installed occurs in the installation process, for example, when the user installs the propeller, if the user takes the propeller to install the propeller on the forward motor, the user only knows that the propeller cannot be installed, the installation time is increased, and the installation and use experience of the user is reduced.

Disclosure of Invention

Based on this, the application provides a screw subassembly, driving system and unmanned aerial vehicle.

According to a first aspect of the present application, there is provided a propeller assembly comprising:

a propeller;

a first fitting mounted on the propeller;

the first matching piece is used for being matched with a second matching piece arranged on the mounting seat so as to prompt whether the propeller is matched with the mounting seat when the first matching piece is close to and does not contact with the second matching piece.

According to a second aspect of the present application, there is also provided another propeller assembly, comprising:

the propeller comprises a plurality of paddles and a mounting part, wherein the paddles are arranged on the mounting part at intervals along the circumferential direction of the mounting part, the mounting part comprises a first mounting surface facing the mounting seat, and the mounting part is used for being detachably mounted on the mounting seat;

and the first matching piece is installed on the first installation surface and is used for matching with the second matching piece installed on the installation seat, and whether the propeller is matched with the installation seat is prompted when the first matching piece is close to and does not contact with the second matching piece.

According to a third aspect of the present application, there is provided a power system comprising:

a motor;

the mounting seat is connected with the rotor of the motor;

the second matching piece is arranged on the mounting seat;

the propeller assembly of any one of the above, wherein the propeller assembly is detachably mounted on the mounting base;

the first matching piece is used for matching the second matching piece to prompt whether the propeller is matched with the mounting seat when the first matching piece is close to and not in contact with the second matching piece.

According to a fourth aspect of the present application, there is provided a drone, the drone comprising:

a body; and

the power system of the above embodiment is mounted on the machine body.

In the screw subassembly, driving system and unmanned aerial vehicle of this application embodiment, install first mating part on the screw, first mating part is used for with install the cooperation of the second mating part on the mount pad in order to indicate whether the screw is with the mount pad assorted when first mating part is close to and does not contact the second mating part. So, when installing the screw, be close to the screw and when not contacting the mount pad, first cooperation piece and second cooperation piece can the cooperation be in order to indicate whether this screw matches with this mount pad, and like this, the user need not to install the lock to screw and mount pad and can learn in advance whether this screw matches with the mount pad, has reduced installation time, improves user's installation use experience.

Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a propeller assembly of an embodiment of the present application;

FIG. 2 is another structural schematic view of a propeller assembly of an embodiment of the present application;

FIG. 3 is a schematic structural view of a propeller assembly and mount according to an embodiment of the present application;

FIG. 4 is another structural schematic diagram of a propeller assembly and mount according to an embodiment of the present application;

FIG. 5 is yet another structural schematic illustration of a propeller assembly and mount according to an embodiment of the present application;

FIG. 6 is a further structural schematic diagram of a propeller assembly and mount according to an embodiment of the present application;

FIG. 7 is a further structural schematic diagram of a propeller assembly and mount according to an embodiment of the present application;

FIG. 8 is a schematic view of a mounted state of a propeller assembly and mount according to an embodiment of the present application;

FIG. 9 is a schematic view of another mounting state of a propeller assembly and mount according to an embodiment of the present application;

Fig. 10 is a schematic structural view of the unmanned aerial vehicle according to the embodiment of the present application.

Description of main reference numerals:

the propeller assembly 10, the propeller 11, the blade 111, the mounting portion 112, the first mounting surface 1121, the first mating member 12, the first propeller 13, the second propeller 14;

the mounting base 20, the second mounting surface 21, the second mounting groove 211, the second fitting 30, the locking mechanism 40, the holding member 41, the connecting portion 411, the extending portion 412, the fitting portion 42, the groove 421, the protrusion 422, the elastic member 50;

the power system 100, the motor 60 and the limiting shaft 70;

unmanned aerial vehicle 1000, fuselage 200.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 4, a propeller assembly 10 according to the embodiment of the present application includes a propeller 11 and a first mating member 12, the first mating member 12 is mounted on the propeller 11, and the first mating member 12 is configured to mate with a second mating member 30 mounted on a mounting base 20 to indicate whether the propeller 11 is matched with the mounting base 20 when the first mating member 12 is close to and not in contact with the second mating member 30.

It will be appreciated that in the related art, the propellers of unmanned aerial vehicles typically include a reverse propeller and a forward propeller, which need to be mounted on a reverse motor and a forward motor, respectively. However, in the process of installing the propeller, the user cannot judge what type of propeller is being installed, and the user only knows that the type of the propeller is not right when the situation that the propeller is not installed occurs in the installation process, for example, when the user installs the propeller, if the user takes the propeller to install the propeller on the forward motor, the user only knows that the propeller cannot be installed, the installation time is increased, and the installation and use experience of the user is reduced.

In the propeller assembly 10 of the present embodiment, the first mating member 12 is mounted on the propeller 11, and the first mating member 12 is configured to mate with the second mating member 30 mounted on the mount 20 to indicate whether the propeller 11 is mated with the mount 20 when the first mating member 12 is close to and not in contact with the second mating member 30. So, when installing screw 11, when being close to screw 11 and not contacting mount pad 20, first cooperation spare 12 and second cooperation spare 30 can the cooperation be in order to indicate whether this screw 11 matches with this mount pad 20, and like this, the user need not to install the lock to screw 11 and mount pad 20 and can learn in advance whether this screw 11 matches with mount pad 20, has reduced installation time, improves user's installation use experience.

Specifically, in the embodiment of the present application, the number of the first mating members 12 may be one or two or more, and the number of the second mating members 30 is matched with the number of the first mating members 12, which is not limited herein.

In some embodiments, the first mating element 12 includes a sensor (not shown) and the second mating element 30 includes a sensor (not shown) for generating a sensing message with the sensor to indicate whether the propeller 11 is mated with the mount 20 when the sensor is in proximity to and not in contact with the sensor.

As such, when the propeller 11 is installed, sensing information may be generated by the cooperation of the sensor and the sensing piece to prompt the user in advance whether the propeller 11 is matched with the mount 20.

Specifically, in such an embodiment, the sensor may be a sensing element such as an infrared light emitter, the sensing element may be an infrared light receiver, or the like, and the sensor may be an infrared light emitter, and the sensing element may be an infrared light receiver, for example, the infrared light emitter may be mounted on the propeller 11, the infrared sensor may emit an infrared light, and in the process of mounting the propeller 11, the propeller 11 gradually approaches the mounting seat 20, the infrared sensor approaches the infrared light receiver, and the infrared light emitted by the infrared sensor may be received by the infrared light receiver, so that by providing different types or emitting different frequencies of infrared light emitters on different propellers 11, then mounting an infrared light receiver for receiving infrared light of a specific frequency on the mounting seat 20, so that it may be determined whether the propeller 11 is matched with the mounting seat 20 by determining the frequency of the infrared light received by the infrared light receiver. Of course, it will be appreciated that in some embodiments, an infrared light receiver may be provided on the propeller 11 and an infrared light emitter may be provided on the mount 20, which is not limited in this regard.

Referring to fig. 4, in some embodiments, the first mating member 12 and the second mating member 30 may be magnets, and the first mating member 12 is configured to generate a repulsive force or an attractive force with the second mating member 30 when approaching and not contacting the second mating member 30, so as to indicate whether the propeller 11 is matched with the mounting base 20.

In this way, the first matching piece 12 and the second matching piece 30 can be both provided as magnets, and the user is prompted whether the propeller 11 is matched with the mounting seat 20 by the attraction force or the repulsive force between the magnets, so that the implementation manner is simple and reliable.

Specifically, in such an embodiment, the propeller 11 and the mount 20 may be matched with each other when they are attracted to each other, or the propeller 11 and the mount 20 may be matched with each other when they are repelled from each other. It will be appreciated that in order to enhance the user's installation experience, in this application it is preferable to use a means that the propeller 11 and the mount 20 match each other when they are attracted to each other, so that the user can homeotropically mount the propeller 11 on the mount 20 without having to press the propeller 11 with force to overcome the repulsive force when the user perceives the attractive force.

Further, referring to fig. 4, in such an embodiment, the magnetic pole of the side of the first fitting 12 away from the mounting surface of the first fitting 12 (i.e., the side of the first fitting 12 facing the mount 20) is N-pole or S-pole, and the magnetic pole of the side of the second fitting 30 away from the mounting surface of the second fitting 30 (i.e., the side of the second fitting 30 facing the propeller 11) is N-pole or S-pole.

In this way, the two opposing magnets, which may be identical or different, may cooperate to generate an attractive or repulsive force to indicate whether the propeller 11 is mated with the mount 20.

Specifically, in such an embodiment, the first engaging member 12 is N-pole or S-pole on the side facing the mount 20, the second engaging member 30 is N-pole or S-pole on the side facing the propeller 11, and both the first engaging member 12 and the second engaging member 30 repel each other when the opposite sides are the same polarity, and attract each other when the opposite sides are different polarities. Thus, when the propeller 11 is gradually close to the mounting seat 20 for mounting, a user can feel repulsive force or attractive force, so that the user can feel whether the propeller 11 is matched with the mounting seat 20 without buckling the propeller 11 on the mounting seat 20, the user does not need to perform mounting operation to know whether the propeller 11 is matched with the mounting seat 20, the mounting time is shortened, and the mounting experience of the user is provided.

In certain embodiments, the propeller 11 is a first type of propeller or a second type of propeller. The type of first fitting 12 mounted on the first type of paddle is different from the type of first fitting 12 mounted on the second type of paddle.

In this way, the different types of propellers 11 can be distinguished by installing the different types of first matching pieces 12, and the different types of first matching pieces 12 can generate different prompting information with the same second matching piece 30 to prompt whether the propellers 11 are matched with the mounting seat 20.

Specifically, in such an embodiment, the propeller 11 may be a forward or a reverse propeller of the unmanned aerial vehicle 1000, i.e. the first type of propeller may be a forward propeller and the second type of propeller may be a reverse propeller, the first mating member 12 mounted on the forward propeller being a different type of mating member than the first mating member 12 mounted on the reverse propeller. Taking the first matching element 12 and the second matching element 30 as magnets, in one embodiment, the side of the magnet mounted on the positive propeller facing the mounting seat 20 may be N-pole, the side of the magnet mounted on the negative propeller facing the mounting seat 20 may be S-pole, the side of the second matching element 30 on the mounting seat 20 matching with the positive propeller facing the propeller 11 may be S-pole, and the side of the second matching element 30 on the mounting seat 20 matching with the negative propeller facing the propeller 11 may be N-pole, so that when the positive propeller is close to the mounting seat 20 by a user, if the propeller 11 and the mounting seat 20 attract each other, the propeller 11 and the mounting seat 20 are indicated to be matched, otherwise, the mismatch is indicated. Of course, it will be appreciated that the first mating member 12 may be an infrared emitter capable of emitting infrared light of different frequencies, and the second mating member 20 may be an infrared receiver for receiving infrared light of a specific frequency, so that by mounting different infrared emitters on different types of paddles, the infrared receiver on the mount 20 can determine whether the propeller 11 is matched with the mount 20 according to the frequency of the received infrared light.

Referring to fig. 10, in some embodiments, the propeller 11 includes a first paddle 13 and a second paddle 14, the mount 20 includes a first mount 22 and a second mount 23, the first and second paddles 13 and 14 each have a first mating member 12 mounted thereon, the first and second mounts 22 and 23 each have a second mating member 30 mounted thereon, the first paddle 13 is mated with the first mount 22, and the second paddle 14 is mated with the second mount 23;

wherein the type of first fitting 12 mounted on the first paddle 13 is different from the type of first fitting 12 mounted on the second paddle 14. The type of second mating member 30 mounted on the first mount 22 is different from the type of second mating member 30 mounted on the second mount 23.

Thus, the first mating members 12 of different types are mounted on the first paddles 13 and the second paddles 14, and the second mating members 30 of different types are mounted on the second mounting seats 23 and the first mounting seats 22, so that when the propeller 11 is mounted, a user can directly judge which mounting seat 20 the propeller 11 is being mounted is matched with by sensing the prompt information generated by the cooperation of the first mating members 12 of different types and the second mating members 30 of different types.

Specifically, taking the first matching member 12 and the second matching member 30 as magnets, in one embodiment, the side of the magnet mounted on the first paddle 13 facing the mounting seat 20 may be N-pole, the side of the magnet mounted on the second paddle 14 facing the mounting seat 20 may be S-pole, the side of the second matching member 30 on the first mounting seat 22 matching the first paddle 13 facing the propeller 11 may be S-pole, and the side of the second matching member 30 on the second mounting seat 23 matching the second paddle 14 facing the propeller 11 may be N-pole, so that when the user approaches the first paddle 13 to the first mounting seat 22, the first paddle 13 and the first mounting seat 22 attract each other, thereby reminding the user that the first paddle 13 and the first mounting seat 22 are matched, and the user can directly mount, and when the user approaches the first paddle 13 to the second mounting seat 23, the first paddle 13 and the second mounting seat 23 repel each other, thereby reminding the user that the first paddle 13 and the second mounting seat 23 are not matched, and cannot directly mount to the other mounting seat 20. When the user approaches the second paddle 14 to the second mounting seat 23, the second paddle 14 and the second mounting seat 23 attract each other, so that the user is reminded that the second paddle 14 and the second mounting seat 23 are matched and can directly mount, and when the user approaches the second paddle 14 to the first mounting seat 22, the second paddle 14 and the first mounting seat 22 repel each other, so that the user is reminded that the second paddle 14 and the first mounting seat 22 are not matched and cannot be directly mounted and need to be mounted on other mounting seats 20. In this way, by providing the first mating member 12 and the second mating member 30 of different types on the unused propeller and the different mounting bases 20, the user can prompt in advance whether the propeller 11 is matched with the mounting base 20 when the propeller 11 is mounted, thereby saving the mounting time.

It will be appreciated that referring to fig. 10, in such an embodiment, the first paddle 13 may be a positive paddle of the drone 1000 and the second paddle 14 may be a negative paddle of the drone 1000. Specifically, in the present application, the forward paddle of the unmanned aerial vehicle 1000 is a forward rotating paddle, such as a clockwise rotating paddle, and the reverse paddle of the unmanned aerial vehicle 1000 is a reverse rotating paddle, such as a counterclockwise rotating paddle, and the rotation directions of the forward and reverse paddles are opposite, which, of course, can be understood that, in some embodiments, the forward paddle may be a counterclockwise rotating paddle, and the reverse paddle may be a clockwise rotating paddle, which is not limited herein, and only needs to have opposite rotation directions.

Referring to fig. 2 to 6, in some embodiments, the propeller 11 includes a mounting portion 112 and a blade 111 connected to the mounting portion 112, the mounting portion 112 is configured to be detachably connected to the mounting base 20, and the first mating member 12 is mounted on the mounting portion 112.

Thus, mounting the first mating element 12 on the mounting portion 112 may allow the first mating element 12 to face the mounting base 20, and the mounting of the edge first mating element 12 may be easier to implement.

Specifically, in such an embodiment, the number of the paddles 111 is at least two, when two paddles 111 are included, the two paddles 111 may be arranged in a straight line (as shown in fig. 5), and when there are more than two paddles 111, each of the paddles 111 may be uniformly distributed around the mounting portion 112, for example, three paddles 111 (as shown in fig. 10), and an included angle between each of the paddles 111 may be 120 °. In the present embodiment, the blade 111 may be integrally formed with the mounting portion 112 as it is, or the blade 111 may be mounted on the mounting portion 112 by a member and a structure such as a fixing member or a blade clip after being formed separately from the mounting portion 112, and the present invention is not limited thereto.

Referring to fig. 4-7, in some embodiments, the mounting portion 112 includes a first mounting surface 1121 facing the mounting base 20, and the first mating member 12 is mounted on the first mounting surface 1121. The mount 20 includes a second mounting surface 21 facing the propeller 11, and the second mating member 30 is mounted on the second mounting surface 21 and corresponds to the first mating member 12.

In this way, the first mating member 12 and the second mating member 30 are respectively mounted on the first mounting surface 1121 and the second mounting surface 21, and when the propeller 11 is mounted, only the first mounting surface 1121 of the propeller 11 needs to be close to the second mounting surface 21 so that the first mating member 12 and the second mating member 30 can be mated to indicate whether the propeller 11 is matched with the mounting seat 20.

Further, in some embodiments, a first mounting groove (not shown) is formed in the first mounting surface 1121, and the first mating element 12 is mounted in and partially protrudes from the first mounting groove.

In this way, the first mounting groove may position and mount the first fitting 12 to avoid that the first fitting 12 is disengaged from the propeller 11.

In particular, the first mating element 12 may be fixedly mounted in the first mounting groove by means of glue or by means of a snap-fit or screw-fastening.

Further, in the illustrated embodiment, the first mating member 12 is mounted in and partially protrudes from the first mounting groove, it being understood that in other embodiments, the first mating member 12 may be mounted in and completely received in the first mounting groove or the first mating member 12 may be mounted in the first mounting groove with the upper surface of the first mating member 12 flush with the first mounting surface 1121 to avoid collision with an external element, thereby protecting the first mating member 12.

In some embodiments, the second mounting surface 21 has a second mounting groove (not shown) formed therein, and the second mating member 30 is mounted in the second mounting groove and partially protrudes from the second mounting groove.

In this manner, the second mounting groove can locate and mount the second mating member 30 to prevent the second mating member 30 from disengaging from the mount 20. In particular, the second mating member 30 may be fixedly mounted in the second mounting groove by means of glue or by means of a snap fit or screw fastening.

Further, in the illustrated embodiment, the second mating member 30 is mounted in and partially protrudes from the second mounting groove, it being understood that in other embodiments, the second mating member 30 may be mounted in and fully received in the second mounting groove or the second mating member 30 may be mounted in the second mounting groove with the upper surface of the second mating member 30 flush with the second mounting surface 21 to avoid collision with an external element, thereby protecting the first mating member 12.

Referring to fig. 6 and 7, in some embodiments, the first and second mounting surfaces 1121, 21 are each circular. The first mating element 12 is sector-shaped, with both the inner and outer arcs of the first mating element 12 concentric with the first mounting face 1121. The second mating element 30 is also sector-shaped, with both the inner and outer arcs of the second mating element 30 being concentric with the second mounting surface 21.

In this way, the first fitting member 12 and the second fitting member 30 are arranged in a sector shape and concentric with the first mounting surface 1121 and the second mounting surface 21, so that the arrangement of the propeller 11 and the first fitting member 12 can be more attractive, and the arrangement of the second fitting member 30 and the mounting seat 20 can be more attractive.

Of course, it is understood that in other embodiments, the first mating element 12 and the second mating element 30 may have other shapes, which may be the same or different. For example, the first engaging member 12 may be a sector-shaped magnet, the second engaging member 30 may be a cylindrical magnet, etc., and the shapes of the first engaging member 12 and the second engaging member 30 are not particularly limited herein.

In some embodiments, a first marker is provided on the propeller 11 and a second marker is provided on the mount 20, the first and second markers being used to characterize whether the propeller 11 matches the mount 20.

In this way, the first mark and the second mark are respectively arranged on the propeller 11 and the mounting seat 20, so that a user can be further assisted in identifying whether the propeller 11 is matched with the mounting seat 20, and the mounting efficiency is further improved.

In particular, in such embodiments, the first and second indicia may be pattern indicia as well as color indicia or other types of indicia. Also, the first mark and the second mark are pattern marks, for example, in one example, triangular pattern marks may be provided on the propeller 11 and triangular pattern marks may be provided on the mount 20, so that a user can confirm whether the propeller 11 is matched with the mount 20 after seeing the two marks, and it is understood that different pattern marks may be provided on different types of propellers 11 and different mounts 20, for example, triangular marks may be provided on the front propeller and the front propeller mount 20 of the unmanned aerial vehicle 1000 and circular marks may be provided on the reverse propeller and the reverse propeller mount 20, so that the user can confirm whether the propeller 11 is matched with the mount 20 by whether the marks are matched.

Referring to fig. 5-9, in some embodiments, the propeller assembly 10 further includes a locking mechanism 40, the locking mechanism 40 being configured to removably lock the propeller 11 to the mount 20. The locking mechanism 40 includes a catch 41 and an engaging portion 42. The retaining member 41 is disposed on the propeller 11, the mating portion 42 is disposed on the mounting base 20, and after the propeller 11 is docked with the mounting base 20 to a preset position, the retaining member 41 can be turned into the mating portion 42 along the first direction to enter a locked state. The catch 41 can be pivoted out of the engagement portion 42 in a second direction to enter an unlocked state, wherein the first direction is opposite to the second direction.

In this way, the detachable locking of the propeller 11 and the mounting base 20 can be realized by the mounting and matching of the clamping member 41 and the matching portion 42, and the structure is simpler. Meanwhile, the locking mechanism 40 can realize quick disassembly of the propeller 11 and the mounting seat 20, so that the propeller 11 can be conveniently and quickly separated from the mounting seat 20, and the mounting and dismounting efficiency of the propeller 11 is effectively improved.

Specifically, referring to fig. 7 to 9, in the illustrated embodiment, a groove 421 is formed on the second mounting surface 21 of the mounting base 20, a protrusion 422 is disposed at a plurality of positions on the edge of the mounting base 20, the protrusion 422 extends into the groove 421, the protrusion 422 and the groove 421 together form the engaging portion 42 for the retainer 41 to extend into the engaging portion 42, and the retainer 41 is prevented from being separated from the engaging portion 42 in the first direction, and only the retainer 41 is allowed to be separated from the engaging portion 42 in the second direction. As shown in fig. 7, the protruding block 422 protrudes into the groove 421, the retaining member 41 may enter the groove 421 from a portion not blocked by the protruding block 422, then the propeller 11 is rotated in a first direction, the retaining member 41 rotates into the mating portion 42 defined by the protruding block 422 and the groove 421, so as to enter a locked state, and in the locked state, the protruding block 422 limits the retaining member 41 in a vertical direction to prevent the propeller 11 from being separated from the mating portion 42 in a vertical direction (as shown in fig. 8). In the locked state, the propeller 11 may be reversely rotated in the second direction, so that the catch 41 is rotated out of the mating portion 42 defined by the protrusion 422 and the groove 421 (i.e., the catch 41 is rotated to a position in the groove 421 that is not blocked by the protrusion 422) to enter the unlocked state (as shown in fig. 9), at this time, the protrusion 422 does not block the catch 41, and the propeller 11 may be moved in the vertical direction to separate the propeller 11 from the mount 20. As shown, the clockwise direction is a first direction and the counterclockwise direction is a second direction, and in some embodiments, the clockwise direction may be provided as the first direction and the counterclockwise direction as the second direction.

In the present embodiment, the number of the holders 41 and the engaging portions 42 may be at least two. So that the propeller 11 and the mount 20 can be more stably fixed. Preferably, the number of the holding members 41 is the same as the number of the engaging portions 42, and the holding members are in one-to-one correspondence. For example, the number of the holding members 41 is two, so that the propeller 11 forms a two-claw structure, the two holding members 41 may be symmetrically disposed on the first mounting surface 1121 of the mounting portion 112 of the propeller 11 with the axis of the propeller 11 as the center, and the corresponding two engaging portions 42 may be symmetrically disposed with the axis of the mounting base 20 as the center. When the plurality of the holders 41 includes a plurality of, for example, three or more, the plurality of holders 41 are uniformly distributed about the axis of the propeller 11, and the plurality of engaging portions 42 are correspondingly uniformly distributed about the axis of the mount 20. The clamping members 41 and the matching parts 42 are symmetrically or uniformly distributed, so that the connection stress between the propeller 11 and the mounting seat 20 is balanced as much as possible, the rotation of the propeller 11 can be more reliably maintained, and the possibility of shooting the propeller is more effectively reduced.

In some embodiments, the retaining member 41 may include a connection portion 411 and an extension portion 412, where one end of the connection portion 411 is connected to the mounting portion 112 of the propeller 11, and the other end of the connection portion 411 is connected to the extension portion 412, and an included angle is formed between the extension portion 412 and the connection portion 411.

Specifically, the connection portion 411 may be fixedly connected to the mounting portion 112, and preferably, the connection portion 411 is integrally formed with the mounting portion 112 and extends from the first mounting surface 1121 of the mounting portion 112 in a direction away from the blade 111, and the connection portion 411 may be located at an edge position of the first mounting surface 1121 and extends downward from the edge position of the first mounting surface 1121 in a direction perpendicular to the surface of the first mounting surface 1121. The extending portion 412 may be disposed at the end of the connecting portion 411, and the extending portion 412 may form an included angle with the connecting portion 411, where the included angle may be 30 ° to 90 °, and preferably, the included angle between the extending portion 412 and the connecting portion 411 is 90 °, that is, the extending portion 412 is perpendicular to the connecting portion 411.

The protruding portion 412 is configured to protrude into the mating portion 42, and the thickness of the protruding portion 412 may be slightly smaller than the height of the mating portion 42, so that the protruding portion 412 may be turned into the mating portion 42 and turned out of the mating portion 42. Preferably, the protruding portion 412 extends outwardly in the radial direction of the mounting portion 112.

Referring to fig. 8 and 9, in the embodiment of the present application, the protruding portion 412 protrudes into the mating portion 42, and the mating portion 42 is formed by the groove 421 on the second mounting surface 21 and the protrusion 422 that partially protrudes into the groove 421, that is, the protruding portion 412 protrudes into the mounting seat 20, so as to lock the propeller 11 and the mounting seat 20. When the retainer 41 is turned into the engagement portion 42 in the first direction to enter the locked state, the protrusion 422 can limit the protrusion 412 in the vertical direction to prevent the propeller 11 from being separated from the mount 20 when turned, and when the retainer 41 is turned out of the engagement portion 42 in the second direction to enter the unlocked state, the protrusion 412 is offset from the protrusion 422, and the protrusion 412 can be separated from the groove 421, so that the propeller 11 can be detached from the mount 20.

In some embodiments, the first engaging member 12 and the retaining member 41 are disposed at intervals along the circumferential direction of the propeller 11 and on the same circumference as the retaining member 41, and the second engaging member 30 is mounted on the engaging portion 42.

In this way, the first fitting member 12 and the holding member 41 are disposed on the same circumference, and the second fitting member 30 is mounted on the fitting portion 42 without increasing the radial dimension of the propeller 11, which is advantageous in downsizing of the propeller 11.

Specifically, in such an embodiment, in the unlocked state, the first mating element 12 and the second mating element 30 at least partially overlap each other, and in the locked state, the first mating element 12 and the second mating element 30 are at least partially offset from each other. In this way, when the propeller 11 is mounted, the engagement of the first engaging member 12 and the second engaging member 30 can be used in the unlocked state to determine whether the propeller 11 is matched with the mount 20 without performing the locking operation.

It will be appreciated that in such an embodiment, the number of the first engaging members 12 may be plural, the number of the holding members 41 may be plural, one first engaging member 12 is disposed between two adjacent holding members 41, and the second engaging member 30 is disposed on the engaging portion 42, so that when the first engaging member 12 and the second engaging member 30 are both magnets and attract each other, the attractive force between the first engaging member 12 and the second engaging member 30 guides the user to rotate the propeller 11 to the preset position, so that the holding members 41 can extend into the groove 422 to facilitate the locking operation of the user, and in such a case, the first engaging member 12 and the second engaging member 30 have guiding and positioning functions, thereby improving the use experience of the user.

Referring to fig. 4 and 7, in some embodiments, the propeller assembly 10 further includes an elastic member 50 disposed between the propeller 11 and the mounting base 20, where the elastic member 50 is configured to provide an elastic force to make the retaining member 41 retain in the mating portion 42, so as to maintain the locked state.

Thus, by providing the elastic member 50, the locking stability of the holding member 41 and the mating portion 42 can be improved, the holding member 41 can be firmly fixed in the mating portion 42 under the action of the elastic force, and if the holding member 41 needs to be separated from the mating portion 42, the elastic force of the elastic member 50 must be overcome first, and the holding member 41 must be rotated out along the second direction. Specifically, the elastic member 50 in this embodiment may be an axial expansion spring, or other elastic element capable of expanding and contracting in the axial direction.

Further, in some embodiments, the first mating member 12 and the second mating member 30 are both magnets, and the first mating member 12 is configured to generate a repulsive force or attractive force with the second mating member 30 when approaching and not contacting the second mating member 30, so as to indicate whether the propeller 11 is matched with the mounting base 20, and the attractive force between the first mating member 12 and the second mating member 30 is smaller than the elastic force provided by the elastic member 50.

In this way, when the first matching member 12 and the second matching member 30 are magnets, the attractive force between the first matching member 12 and the second matching member 30 is smaller than the elastic force provided by the elastic member 50, so that the situation that the propeller 11 automatically overcomes the elastic force of the spring under the action of the attractive force to enable the clamping member 41 to rotate along the second direction due to the fact that the propeller shooting phenomenon is caused can be avoided, and the use safety of the propeller 11 is improved.

Referring to fig. 4 and 6, a propeller assembly 10 according to another embodiment of the present application includes a propeller 11 and a first mating member 12, the propeller 11 includes a plurality of blades 111 and a mounting portion 112, the plurality of blades 111 are disposed on the mounting portion 112 at intervals along a circumferential direction of the mounting portion 112, the mounting portion 112 includes a first mounting surface 1121 facing the mounting base 20, and the mounting portion 112 is configured to be detachably mounted on the mounting base 20. The first mating member 12 is mounted on the first mounting surface 1121 for mating with the second mating member 30 mounted on the mount 20, and indicates whether the propeller 11 is mated with the mount 20 when the first mating member 12 is adjacent to and not in contact with the second mating member 30.

Thus, when the propeller 11 is installed, when the propeller 11 is close to and does not contact with the installation seat 20, the first matching piece 12 and the second matching piece 30 installed on the first installation surface 1121 can be matched to prompt whether the propeller 11 is matched with the installation seat 20, so that a user can know whether the propeller 11 is matched with the installation seat 20 without installing and buckling the propeller 11 and the installation seat 20, the installation time is shortened, and the installation and use experience of the user is improved.

Referring to fig. 10, fig. 10 is an embodiment of a power system 100 provided herein, wherein the power system 100 includes a motor 60, a mount 20, a second mating member 30, and a propeller assembly 10 according to any of the above embodiments. The mount 20 is connected to the rotor of the motor 60, and the second mating member 30 is mounted on the mount 20. The propeller assembly 10 is detachably mounted on the mount 20, wherein the first mating member 12 is adapted for mating with the second mating member 30 to indicate whether the propeller 11 is mated with the mount 20 when the first mating member 12 is in proximity to and not in contact with the second mating member 30.

In the power system 100 of the present embodiment, the first mating member 12 is mounted on the propeller 11, and the first mating member 12 is configured to mate with the second mating member 30 mounted on the mount 20 to indicate whether the propeller 11 is matched with the mount 20 when the first mating member 12 is close to and not in contact with the second mating member 30. Thus, when installing the propeller 11, when the propeller 11 is close to and does not contact with the mounting seat 20, the first matching piece 12 and the second matching piece 30 can be matched to prompt whether the propeller 11 is matched with the mounting seat 20, so that a user can know whether the propeller 11 is matched with the mounting seat 20 without installing and buckling the propeller 11 and the mounting seat 20, the installation time is shortened, and the installation and use experience of the user is improved.

Specifically, in the present embodiment, the propeller assembly 10 is detachably connected to the mount 20, the mount 20 is connected to the rotor of the motor 60, and the mount 20 and the propeller assembly 10 can be rotated by the motor 60 to provide flying power.

Referring to fig. 4 and 7, in some embodiments, a limiting shaft 70 is further disposed at a middle position of the mounting seat 20, the limiting shaft 70 penetrates through the mounting seat 20, a limiting recess is disposed on the propeller 11, and the limiting shaft 70 cooperates with the limiting recess to prevent the propeller 11 from swinging along a radial direction, so as to improve the stability of rotation of the propeller 11.

Specifically, the limit recess may be located at a middle portion of the mounting portion 112 of the propeller 11, and the axis of the limit shaft 70 may coincide with the rotation axis of the motor 60. In this way, the rotation axis of the motor 60, the rotation axis of the propeller 11 and the axis of the limiting shaft 70 are coincident, so that the propeller 11 is more stable when rotating, and the rotor of the motor 60 can drive the propeller 11 and the mounting seat 20 to stably rotate. It will be appreciated that in such an embodiment, the elastic member 50 may be sleeved on the limiting shaft 70, so that the limiting shaft 70 may play a role in radially limiting the elastic member 50, preventing the elastic member 50 from deflecting radially, and enabling the elastic member 50 to extend and retract only in the axial direction.

In certain embodiments, the mount 20 is a first type of mount 20 or a second type of mount 20. The type of second mating member 30 mounted on the first type of mount 20 is different from the type of second mating member 30 mounted on the second type of mount 20.

Thus, when the mounting base 20 is a different type of mounting base 20, the second matching parts 30 of different types can be installed to distinguish, and the second matching parts 30 of different types and the first matching parts 12 generate different prompting information to prompt whether the propeller 11 is matched with the mounting base 20.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a drone 1000 according to one embodiment of the present application, where the drone 1000 includes a fuselage 200 and the power system 100 of the above embodiment, and the power system 100 is mounted on the fuselage 200.

In the unmanned aerial vehicle 1000 of the present embodiment, the first mating member 12 is installed on the propeller 11, and the first mating member 12 is used for being mated with the second mating member 30 installed on the mount 20 to indicate whether the propeller 11 is matched with the mount 20 when the first mating member 12 approaches and does not contact the second mating member 30. Thus, when installing the propeller 11, when the propeller 11 is close to and does not contact with the mounting seat 20, the first matching piece 12 and the second matching piece 30 can be matched to prompt whether the propeller 11 is matched with the mounting seat 20, so that a user can know whether the propeller 11 is matched with the mounting seat 20 without installing and buckling the propeller 11 and the mounting seat 20, the installation time is shortened, and the installation and use experience of the user is improved.

It is to be understood that in the present application, the power system 100 is used to provide power to the unmanned aerial vehicle 1000, and the power system 100 includes at least two motors 60, two mounts 20, and two propellers 11, wherein at least one propeller 11 is a positive propeller, at least one motor 60 is a positive motor, at least one propeller 11 is a negative propeller, and at least one motor 60 is a negative motor 60. The first fittings 12 on the positive and negative paddles are of different types and the second fittings 30 on the mount 20 that mates with the positive paddle are of different types than the second fittings 30 on the mount 20 that mates with the negative paddle. Thus, when installing the propeller 11, the user can know in advance whether the propeller 11 is matched with the mounting seat 20 through the cooperation of the first matching piece 12 and the second matching piece 30, so that the installation time is saved, the installation and use experience is improved, and the specific types and specific installation and matching processes of the first matching piece 12 and the second matching piece 30 are as described above, and are not repeated here.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application, which is defined by the claims and their equivalents.

Claims

A propeller assembly, comprising:

a propeller;

a first fitting mounted on the propeller;

the first matching piece is used for being matched with a second matching piece arranged on the mounting seat so as to prompt whether the propeller is matched with the mounting seat when the first matching piece is close to and does not contact with the second matching piece.
The propeller assembly of claim 1, wherein the first mating member includes a sensor and the second mating member includes a sensing member for generating sensing information with the sensing member to indicate whether the propeller is mated with the mount when the sensing member is proximate to and not in contact with the sensor.
The propeller assembly of claim 1, wherein the first mating member and the second mating member are magnets, the first mating member being configured to generate a repulsive or attractive force with the second mating member when the first mating member is proximate to and not in contact with the second mating member to indicate whether the propeller is mated with the mount.
A propeller assembly according to claim 3, wherein the pole of the side of the first fitting remote from the mounting face of the first fitting is either N-pole or S-pole, and the pole of the side of the second fitting remote from the mounting face of the second fitting is either N-pole or S-pole.
The propeller assembly of claim 1, wherein the propeller is a first type of propeller or a second type of propeller;

the first mating member mounted on the first type of paddle is of a different type than the first mating member mounted on the second type of paddle.
The propeller assembly of any one of claims 1-4, wherein the propeller comprises a first propeller and a second propeller, the mount comprises a first mount and a second mount, the first and second propellers each have the first mating member mounted thereon, the first and second mounts each have the second mating member mounted thereon, the first propeller is mated with the first mount, and the second propeller is mated with the second mount;

wherein the type of the first fitting mounted on the first paddle is different from the type of the first fitting mounted on the second paddle;

The second mating member is of a different type than the second mating member mounted on the first mount.
The propeller assembly of claim 6, wherein the first propeller is a positive propeller of an unmanned aerial vehicle and the second propeller is a negative propeller of the unmanned aerial vehicle.
The propeller assembly of claim 1, wherein the propeller includes a mounting portion for detachable connection with the mount, and a blade attached to the mounting portion, the first mating member being mounted on the mounting portion.
The propeller assembly of claim 8, wherein the mounting portion includes a first mounting surface facing the mount, the first mating member being mounted on the first mounting surface;

the mounting seat comprises a second mounting surface facing the propeller, and the second matching piece is mounted on the second mounting surface and corresponds to the first matching piece.
The propeller assembly of claim 9, wherein the first mounting surface has a first mounting groove formed therein;

the first fitting is mounted in the first mounting groove and partially protrudes from the first mounting groove; or alternatively

The first matching piece is installed in the first installation groove and is completely contained in the first installation groove; or alternatively

The first fitting piece is installed in the first installation groove, and the upper surface of the first fitting piece is flush with the first installation surface.
The propeller assembly of claim 9, wherein the second mounting surface has a second mounting groove formed therein;

the second fitting is mounted in the second mounting groove and partially protrudes from the second mounting groove; or alternatively

The second matching piece is installed in the second installation groove and is completely contained in the second installation groove; or alternatively

The second fitting piece is installed in the second installation groove, and the upper surface of the second fitting piece is flush with the second installation surface.
The propeller assembly of claim 9, wherein the first and second mounting surfaces are each circular;

the first matching piece is in a sector shape, and the inner arc and the outer arc of the first matching piece are concentric with the first mounting surface;

the second fitting piece is also sector-shaped, and the inner arc and the outer arc of the second fitting piece are concentric with the second mounting surface.
The propeller assembly of claim 1, wherein a first marker is provided on the propeller and a second marker is provided on the mount, the first marker and the second marker being used to characterize whether the propeller matches the mount.
The propeller assembly of claim 1, further comprising a locking mechanism for detachably locking the propeller to the mount;

the locking mechanism includes:

the clamping piece is arranged on the propeller;

the clamping piece can rotate into the matching part along a first direction to enter a locking state after the propeller and the mounting seat are in butt joint to a preset position;

the clamping piece can rotate out of the matching part along a second direction so as to enter an unlocking state, wherein the first direction is opposite to the second direction.
The propeller assembly of claim 14, wherein the first mating member is spaced apart from the retaining member along the circumference of the propeller and on the same circumference as the retaining member, and the second mating member is mounted on the mating portion.
The propeller assembly of claim 15, wherein in the unlocked state the first and second mating members at least partially overlap each other and in the locked state the first and second mating members are at least partially offset from each other.
The propeller assembly of claim 14, further comprising an elastic member disposed between the propeller and the mount, the elastic member for providing an elastic force to cause the catch member to catch in the mating portion to maintain the locked state.
The propeller assembly of claim 17, wherein the first mating member and the second mating member are both magnets, the first mating member being configured to generate a repulsive or attractive force with the second mating member when in proximity to and not in contact with the second mating member to indicate whether the propeller is mated with the mount, the attractive force being less than the elastic force provided by the elastic member.
A propeller assembly, comprising:

the propeller comprises a plurality of paddles and a mounting part, wherein the paddles are arranged on the mounting part at intervals along the circumferential direction of the mounting part, the mounting part comprises a first mounting surface facing the mounting seat, and the mounting part is used for being detachably mounted on the mounting seat;

And the first matching piece is installed on the first installation surface and is used for matching with the second matching piece installed on the installation seat, and whether the propeller is matched with the installation seat is prompted when the first matching piece is close to and does not contact with the second matching piece.
A power system, comprising:

a motor;

the mounting seat is connected with the rotor of the motor;

the second matching piece is arranged on the mounting seat;

the propeller assembly of any one of claims 1-19, said propeller assembly being removably mounted on said mount;

the first matching piece is used for matching the second matching piece to prompt whether the propeller is matched with the mounting seat when the first matching piece is close to and not in contact with the second matching piece.
The power system of claim 20, wherein the mount is a first type of mount or a second type of mount;

the second mating member mounted on the first type mount is of a different type than the second mating member mounted on the second type mount.
An unmanned aerial vehicle, comprising:

a body; and

the power system of any one of claims 20-21, mounted on the fuselage.