WO2022151219A1

WO2022151219A1 - Propeller assembly, power system, and unmanned aerial vehicle

Info

Publication number: WO2022151219A1
Application number: PCT/CN2021/071869
Authority: WO
Inventors: 刘以奋; 桑晓庆; 孟祥争
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2022-07-21
Also published as: CN116490431A

Abstract

A propeller assembly (10), a power system (100), and an unmanned aerial vehicle (1000), the propeller assembly (10) comprising a propeller (11) and first fittings (12); the first fittings (12) are mounted on the propeller (11), and the first fittings (12) are used for cooperating with a second fitting (30) that is mounted on a mounting base (20), so as to prompt, when the first fittings (12) approach and do not make contact with the second fitting (30), whether the propeller (11) matches the mounting base (20).

Description

Propeller assemblies, power systems and drones

technical field

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

Background technique

In the related art, the propeller of the drone usually includes a reverse propeller and a forward propeller, which need to be installed on the reverse motor and the 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 will know that the propeller type is wrong only when the installation fails during the installation process. For example, when installing the reverse propeller, if The user installs the reverse propeller on the forward motor, and the user has to install the reverse propeller on the motor to know that it cannot be installed, which increases the installation time and reduces the user's installation and use experience.

SUMMARY OF THE INVENTION

Based on this, the present application provides a propeller assembly, a power system and an unmanned aerial vehicle.

According to a first aspect of the present application, the present application provides a propeller assembly comprising:

propeller;

a first fitting mounted on the propeller;

The first fitting is used to cooperate with the second fitting installed on the mounting seat to prompt whether the propeller is in contact with the mounting seat when the first fitting is close to and does not contact the second fitting. match.

According to the second aspect of the present application, the present application also provides another propeller assembly, the propeller assembly comprising:

A propeller, the propeller includes a plurality of blades and a mounting portion, the plurality of blades are arranged on the mounting portion at intervals along the circumferential direction of the mounting portion, and the mounting portion includes a first portion facing the mounting seat. an installation surface, the installation part is used to be detachably installed on the installation seat;

A first matching piece, the first matching piece is mounted on the first mounting surface and used for matching with a second matching piece mounted on the mounting seat, when the first matching piece is close to and does not contact the first matching piece When there are two matching parts, it will prompt whether the propeller matches the mounting seat.

According to a third aspect of the present application, the present application provides a power system, the power system comprising:

motor;

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

a second matching piece, the second matching piece is mounted on the mounting seat;

The propeller assembly described in any one of the above, the propeller assembly is detachably mounted on the mounting seat;

Wherein, the first matching piece is used for matching with the second matching piece to prompt whether the propeller matches 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, the present application provides an unmanned aerial vehicle, the unmanned aerial vehicle comprising:

airframe; and

In the power system according to the above embodiment, the power system is mounted on the fuselage.

In the propeller assembly, the power system, and the unmanned aerial vehicle according to the embodiments of the present application, a first fitting member is installed on the propeller, and the first fitting member is used to cooperate with the second fitting member installed on the mounting seat to cooperate with the first fitting member. When the piece is close to and not in contact with the second mating piece, it will prompt whether the propeller matches the mounting seat. In this way, when the propeller is installed, when the propeller is close to and does not touch the mounting seat, the first fitting and the second fitting will cooperate to prompt whether the propeller matches the mounting seat, so that the user does not need to adjust the propeller and the installation. It can be known in advance whether the propeller matches the mounting seat by installing and snapping the seat, which reduces the installation time and improves the user's installation and use experience.

Additional aspects and advantages of embodiments of the present application will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of embodiments of the present application.

Description of drawings

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

1 is a schematic structural diagram of a propeller assembly according to an embodiment of the present application;

Fig. 2 is another structural schematic diagram of the propeller assembly of the embodiment of the present application;

3 is a schematic structural diagram of a propeller assembly and a mounting seat according to an embodiment of the present application;

Fig. 4 is another structural schematic diagram of the propeller assembly and the mounting seat according to the embodiment of the present application;

Fig. 5 is another structural schematic diagram of the propeller assembly and the mounting seat according to the embodiment of the present application;

Fig. 6 is another structural schematic diagram of the propeller assembly and the mounting seat according to the embodiment of the present application;

Fig. 7 is another structural schematic diagram of the propeller assembly and the mounting seat according to the embodiment of the present application;

8 is a schematic diagram of the installation state of the propeller assembly and the mounting seat according to the embodiment of the present application;

9 is a schematic diagram of another installation state of the propeller assembly and the mounting seat according to the embodiment of the present application;

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

Description of main component symbols:

The propeller assembly 10 , the propeller 11 , the blade 111 , the mounting portion 112 , the first mounting surface 1121 , the first fitting 12 , the first propeller 13 , and the second propeller 14 ;

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

Power system 100, motor 60, limit shaft 70;

UAV 1000, fuselage 200.

Detailed ways

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 with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this 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 FIGS. 1 to 4 , the propeller assembly 10 of the embodiment of the present application includes a propeller 11 and a first fitting 12 , the first fitting 12 is mounted on the propeller 11 , and the first fitting 12 is used and installed on the mounting seat 20 The second matching piece 30 on the upper part cooperates to prompt whether the propeller 11 matches the mounting seat 20 when the first matching piece 12 is close to and does not contact the second matching piece 30 .

It can be understood that in the related art, the propeller of the UAV usually includes a reverse propeller and a forward propeller, and the two need to be installed on the reverse motor and the 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 will know that the propeller type is wrong only when the installation fails during the installation process. For example, when installing the reverse propeller, if The user installs the reverse propeller on the forward motor, and the user has to install the reverse propeller on the motor to know that it cannot be installed, which increases the installation time and reduces the user's installation and use experience.

In the propeller assembly 10 according to the embodiment of the present application, the propeller 11 is mounted with a first fitting 12 , and the first fitting 12 is used to cooperate with the second fitting 30 mounted on the mounting seat 20 so as to be connected to the first fitting 12 . When the 12 is close to and not in contact with the second fitting 30 , it prompts whether the propeller 11 matches the mounting seat 20 . In this way, when the propeller 11 is installed, when the propeller 11 is approached without contacting the mounting seat 20, the first fitting 12 and the second fitting 30 will cooperate to indicate whether the propeller 11 matches the mounting seat 20, so that , the user can know in advance whether the propeller 11 matches the mounting seat 20 without having to install and buckle the propeller 11 and the mounting seat 20 , which reduces the installation time and improves the user's installation and use experience.

Specifically, in the embodiment of the present application, the number of the first fittings 12 may be one or two or more, and the number of the second fittings 30 matches the number of the first fittings 12 . Specifically There is no restriction here.

In some embodiments, the first fitting 12 includes a sensor (not shown), and the second fitting 30 includes a sensing member (not shown) for use when the sensing member is close to and not touching the sensor Sensing information is generated with the sensing element to prompt whether the propeller 11 matches the mounting seat 20 .

In this way, when the propeller 11 is installed, sensing information can be generated through the cooperation of the sensor and the sensing element, so as to prompt the user in advance whether the propeller 11 matches the mounting seat 20 .

Specifically, in such an embodiment, the sensor may be a sensing element such as an infrared light transmitter, the sensing element may be an infrared light receiver or other elements, the sensor is an infrared light transmitter, and the sensing element is an infrared light receiver. For example, the infrared light transmitter can be installed on the propeller 11, and the infrared sensor can emit infrared light. During the process of installing the propeller 11, the propeller 11 gradually approaches the mounting seat 20, and the infrared sensor is close to the infrared light receiver. The infrared light emitted by the infrared sensor Can be received by the infrared light receiver, in this way, infrared light transmitters of different types or emitting different frequencies can be arranged on different propellers 11, and then the infrared light receiver for receiving infrared light of a specific frequency can be installed on the mounting base 20 In this way, it can be judged whether the propeller 11 matches the mounting seat 20 by judging the frequency of the infrared light received by the infrared light receiver. Of course, it can be understood that, in some embodiments, an infrared light receiver may also be provided on the propeller 11, and an infrared light transmitter may be provided on the mounting base 20, which is not specifically limited herein.

Referring to FIG. 4 , in some embodiments, both the first matching member 12 and the second matching member 30 may be magnets, and the first matching member 12 is used for matching with the second matching member 30 when it is close to and not in contact with the second matching member 30 . A repulsive force or an attractive force is generated between the pieces 30 to indicate whether the propeller 11 matches the mounting seat 20 .

In this way, both the first matching member 12 and the second matching member 30 can be set as magnets, and the user is prompted whether the propeller 11 matches the mounting seat 20 through the attractive force or repulsive force between the magnets, which is simple and reliable. .

Specifically, in such an embodiment, the propeller 11 and the mounting seat 20 may match each other when they attract each other, or they may match with each other when the propeller 11 and the mounting seat 20 repel each other. It can be understood that, in order to improve the installation experience of the user, in the present application, it is preferable to use the propeller 11 and the mounting seat 20 when they are attracted to each other to indicate that the two match each other. In this way, when the user perceives the attraction, the user can follow the trend. Mount the mount 20 without pressing the propeller 11 hard to overcome the repulsive 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 (ie, the side of the first fitting 12 facing the mounting seat 20 ) N pole or S pole, the magnetic pole of the side of the second fitting 30 away from the mounting surface of the second fitting 30 (ie the side of the second fitting 30 facing the propeller 11 ) is the N pole or the S pole.

In this way, two opposite magnets with the same or different magnetic poles can cooperate to generate an attractive force or a repulsive force so as to indicate whether the propeller 11 is matched with the mounting seat 20 .

Specifically, in such an embodiment, the side of the first fitting 12 facing the mounting seat 20 is the N pole or the S pole, and the side of the second fitting 30 facing the propeller 11 is the N pole or the S pole. When the opposite sides of the first matching member 12 and the second matching member 30 are of the same polarity, they repel each other, and when the opposite sides of the two are of different polarities, they attract each other. In this way, during installation, when the user installs the propeller 11 gradually close to the mounting seat 20, the user will feel the repulsive force or attractive force, so that the user can perceive the propeller without snapping the propeller 11 on the mounting seat 20. Whether the 11 matches the mounting seat 20 does not require the user to perform an installation operation to know whether the two match, which reduces the installation time and provides the user's installation experience.

In some 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, different types of propellers 11 can be distinguished by installing different types of first fittings 12 , and different types of first fittings 12 and the same second fitting 30 will generate different prompt information to prompt the propeller 11 Whether it matches the mounting seat 20.

Specifically, in such an embodiment, the propeller 11 can be a forward propeller or a reverse propeller of the UAV 1000, that is, the first type of propeller can be a forward propeller, and the second type of propeller can be a reverse propeller, which is installed on the The first fitting 12 on the forward paddle and the first fitting 12 installed on the reverse paddle are different types of fittings. Taking the first fitting 12 and the second fitting 30 as magnets as an example, in one embodiment, the side of the magnet installed on the forward paddle facing the mounting seat 20 may be the N pole, and the magnet installed on the reverse paddle may be an N pole. The side of the magnet facing the mounting seat 20 can be the S pole, the side of the second fitting 30 on the mounting seat 20 that cooperates with the positive propeller facing the propeller 11 can be the S pole, and the side of the mounting seat 20 that cooperates with the reverse propeller can be the S pole. The side of the two mating parts 30 facing the propeller 11 can be the N pole. In this way, when the user brings the positive propeller close to the mounting seat 20, if the propeller 11 and the mounting seat 20 attract each other, it means that the propeller 11 and the mounting seat 20 are matched. , otherwise it means a mismatch. Of course, it can be understood that the first matching member 12 can also be an infrared transmitter that can emit infrared rays of different frequencies, and the second matching member 20 can be an infrared receiver used to receive infrared rays of a specific frequency. Different infrared light emitters can be installed on different types of propellers, and the infrared receiver on the mounting base 20 can judge whether the propeller 11 matches the mounting base 20 according to the frequency of the received infrared light.

Referring to FIG. 10 , in some embodiments, the propeller 11 includes a first propeller 13 and a second propeller 14 , the mounting seat 20 includes a first mounting seat 22 and a second mounting seat 23 , and the first propeller 13 and the second propeller 14 The first fittings 12 are installed on both, the second fittings 30 are installed on the first mounting seat 22 and the second mounting seat 23, the first paddle 13 is matched with the first mounting seat 22, and the second paddle 14 is matched with the first The two mounting seats 23 are matched;

Wherein, the type of the first fitting 12 installed on the first paddle 13 is different from the type of the first fitting 12 installed on the second paddle 14 . The type of the second fitting 30 mounted on the first mount 22 is different from the type of the second fitting 30 mounted on the second mount 23 .

In this way, different types of first fittings 12 are installed on the first paddle 13 and the second paddle 14 , and different types of second fittings 30 are installed on the second mounting seat 23 and the first mounting seat 22 . When the propeller 11 is installed, the user can directly determine which mounting seat 20 the propeller 11 being installed is matched with by sensing the prompt information generated by the cooperation of different first fittings 12 and different second fittings 30 .

Specifically, taking the first fitting 12 and the second fitting 30 as magnets as an example, in one embodiment, the side of the magnet installed on the first paddle 13 facing the mounting seat 20 may be an N pole, The side of the magnet on the second paddle 14 facing the mounting seat 20 may be the S pole, and the side of the second fitting 30 on the first mounting seat 22 that cooperates with the first paddle 13 facing the propeller 11 may be the S pole, The side of the second fitting 30 on the second mounting seat 23 that is matched with the second paddle 14 toward the propeller 11 may be the N pole. 13 and the first mounting seat 22 attract each other, thereby reminding the user that the first paddle 13 matches the first mounting seat 22 and can be installed directly. When the user brings the first paddle 13 close to the second mounting seat 23, the first paddle 13 is 13 and the second mounting seat 23 are mutually exclusive, thereby reminding the user that the first paddle 13 does not match the second mounting seat 23 and cannot be directly installed, and needs to be installed on other mounting seats 20 . When the user brings the second paddle 14 close to the second mounting seat 23, the second paddle 14 and the second mounting seat 23 attract each other, thereby reminding the user that the second paddle 14 and the second mounting seat 23 are matched and can be installed directly, When the user brings the second paddle 14 close to the first mounting seat 22, the second paddle 14 and the first mounting seat 22 repel each other, thereby reminding the user that the second paddle 14 does not match the first mounting seat 22 and cannot be installed directly, and needs to be installed to other mounts 20 . In this way, by disposing different types of first fittings 12 and second fittings 30 on different propellers and different mounting bases 20 , the user can be reminded in advance of the propeller 11 and the mounting base 20 when installing the propeller 11 . Whether it matches, saves installation time.

It can be understood that, referring to FIG. 10 , in such an embodiment, the first paddle 13 may be the forward paddle of the drone 1000 , and the second paddle 14 may be the reverse paddle of the drone 1000 . Specifically, in the present application, the forward propeller of the UAV 1000 is a propeller that rotates in a forward direction, such as a clockwise propeller, and the reverse propeller of the UAV 1000 is a propeller that rotates in a reverse direction, such as a counterclockwise propeller, The rotation directions of the forward propeller and the reverse propeller are opposite. Of course, it can be understood that, in some embodiments, the forward propeller can also be a propeller that rotates counterclockwise, and the reverse propeller is a propeller that rotates clockwise. The rotation directions of the two are required to be opposite.

Referring to FIGS. 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 used for detachable connection with the mounting seat 20 , and the first matching The member 12 is mounted on the mounting portion 112 .

In this way, the first fitting 12 can be installed on the mounting portion 112 so that the first fitting 12 can face the mounting seat 20 , and the installation of the first fitting 12 at the edge can be easily realized.

Specifically, in such an embodiment, the number of paddles 111 is at least two. When two paddles 111 are included, the two paddles 111 can be arranged in a line (as shown in FIG. 5 ). When there are more than two paddles 111 , each paddle 111 can be evenly distributed around the mounting portion 112 , for example, three paddles 111 (as shown in FIG. 10 ), the included angle between each paddle 111 can be 120°. In addition, in this embodiment, the paddle 111 may be directly integrally formed with the mounting portion 112 , or may be formed separately from the mounting portion 112 and then mounted on the mounting portion 111 through components and structures such as a fastener or a paddle clip. On the part 112, there is no specific limitation here.

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

In this way, the first fitting 12 and the second fitting 30 are installed on the first mounting surface 1121 and the second mounting surface 21 respectively. When installing the propeller 11 , it is only necessary to move the first mounting surface 1121 of the propeller 11 close to the second mounting surface 1121 . The mounting surface 21 can enable the first fitting 12 and the second fitting 30 to cooperate to indicate whether the propeller 11 is matched with the mounting seat 20 .

Further, in some embodiments, a first installation groove (not shown) is formed on the first installation surface 1121, and the first fitting 12 is installed in the first installation groove and partially from the first installation groove Protruding inside.

In this way, the first installation groove can position and install the first fitting 12 to prevent the first fitting 12 from being separated from the propeller 11 .

Specifically, the first fitting 12 may be fixedly installed in the first installation groove by means of glue, or by means of snap connection or screw fastening.

In addition, in the illustrated embodiment, the first fitting 12 is installed in the first installation groove and partially protrudes from the first installation groove. It can be understood that in other embodiments, the first fitting 12 is also It can be installed in the first installation groove and completely received in the first installation groove or the first fitting 12 is installed in the first installation groove and the upper surface of the first fitting 12 is flush with the first installation surface 1121 to avoid The collision of the external element protects the first fitting 12 .

In some embodiments, a second installation groove (not shown) is formed on the second installation surface 21, and the second fitting 30 is installed in the second installation groove and partially protrudes from the second installation groove.

In this way, the second mounting groove can position and install the second fitting 30 to prevent the second fitting 30 from being separated from the mounting seat 20 . Specifically, the second fitting member 30 may be fixedly installed in the second installation groove by means of glue, or by means of snap connection or screw fastening.

In addition, in the illustrated embodiment, the second fitting 30 is installed in the second installation groove and partially protrudes from the second installation groove. It can be understood that in other embodiments, the second fitting 30 is also It can be installed in the second installation groove and completely received in the second installation groove or the second fitting 30 is installed in the second installation groove and the upper surface of the second fitting 30 is flush with the second installation surface 21 to avoid The collision of the external element protects the first fitting 12 .

Referring to FIG. 6 and FIG. 7 , in some embodiments, the first mounting surface 1121 and the second mounting surface 21 are both circular. The first matching piece 12 is in the shape of a sector, and both the inner arc and the outer arc of the first matching piece 12 are concentric with the first mounting surface 1121 . The second fitting 30 is also sector-shaped, and both the inner arc and the outer arc of the second fitting 30 are concentric with the second mounting surface 21 .

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

Of course, it can be understood that, in other embodiments, the first matching member 12 and the second matching member 30 may also have other shapes, and the shapes of the two may be the same or different. For example, the first matching member 12 may be a sector-shaped magnet, and the second matching member 30 may be a cylindrical magnet, etc. The shapes of the first matching member 12 and the second matching member 30 are not specifically limited herein.

In some embodiments, the propeller 11 is provided with a first mark, the mounting seat 20 is provided with a second mark, and the first mark and the second mark are used to indicate whether the propeller 11 matches the mounting seat 20 .

In this way, the first mark and the second mark are respectively provided on the propeller 11 and the mounting seat 20, which can further assist the user to identify whether the propeller 11 matches the mounting seat 20, and further improve the installation efficiency.

Specifically, in such an embodiment, the first mark and the second mark may be pattern marks or color marks or other types of marks. Also, the first mark and the second mark are pattern marks as an example. For example, in one example, a triangular pattern mark may be provided on the propeller 11, and a triangular pattern mark may also be provided on the mounting seat 20, so that the user is looking at the After reaching these two marks, it can be confirmed whether the propeller 11 matches the mounting seat 20. It can be understood that different types of propellers 11 and different mounting seats 20 may be provided with different pattern marks. The forward propeller and the forward propeller mounting seat 20 of the man-machine 1000 may be provided with triangular marks, and the reverse propeller and the reverse propeller mounting seat 20 may be provided with circular marks, so that the user can confirm whether the propeller 11 matches the mounting seat by whether the marks match. 20 matches.

Referring to FIGS. 5 to 9 , in some embodiments, the propeller assembly 10 further includes a locking mechanism 40 for detachably locking the propeller 11 on the mounting seat 20 . The locking mechanism 40 includes a holding member 41 and a matching portion 42 . The holding member 41 is disposed on the propeller 11, and the matching portion 42 is disposed on the mounting seat 20. After the propeller 11 and the mounting seat 20 are docked to the preset position, the holding member 41 can be rotated into the matching portion 42 along the first direction, to enter the locked state. The holding member 41 can be rotated out from the matching portion 42 along the second direction to enter the 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 seat 20 can be realized through the mounting and cooperation of the holding member 41 and the matching portion 42 , and the structure is relatively simple. At the same time, the locking mechanism 40 can realize the quick disassembly of the propeller 11 and the mounting seat 20 , which facilitates the rapid disengagement of the propeller 11 from the mounting seat 20 , and effectively improves the installation and disassembly efficiency of the propeller 11 .

Specifically, referring to FIGS. 7 to 9 , in the illustrated embodiment, grooves 421 are formed on the second mounting surface 21 of the mounting seat 20 , and bumps 422 are provided at multiple positions on the edge of the mounting seat 20 , the protrusions 422 protrude into the grooves 421, the protrusions 422 and the grooves 421 together form the matching portion 42 for the holding member 41 to extend into the matching portion 42, and can prevent the holding member 41 from moving along the first direction Disengaging from the fitting portion 42 , and only allowing the holding member 41 to disengage from the fitting portion 42 in the second direction. As shown in FIG. 7 , the protrusion 422 protrudes into the groove 421 , and the holding member 41 can enter into the groove 421 from the position that is not blocked by the protrusion 422 , and then rotate the propeller 11 in the first direction, the holding member 41 Rotate into the fitting portion 42 defined by the protrusion 422 and the groove 421 to enter the locked state. In the locked state, the protrusion 422 limits the holding member 41 in the vertical direction to prevent the propeller 11 from moving in the vertical direction. Disengage the mating portion 42 (as shown in FIG. 8 ). In the locked state, the propeller 11 can be rotated in the opposite direction in the second direction, so that the retaining member 41 is rotated to the outside of the matching portion 42 defined by the protrusion 422 and the groove 421 (that is, the retaining member 41 is rotated to the groove 421 ). position that is not blocked by the bump 422) to enter the unlocked state (as shown in FIG. 9), at this time, the bump 422 will not block the holding member 41, and the propeller 11 can move in the vertical direction so that the propeller 11 and the The mounts 20 are separated. As shown in the figure, the clockwise direction is the first direction, and the counterclockwise direction is the second direction. In some embodiments, the clockwise direction may be set as the first direction, and the counterclockwise direction may be set as the second direction.

In addition, in this embodiment, the number of the holding member 41 and the matching portion 42 may be at least two. So that the propeller 11 and the mounting seat 20 can be fixed more stably. Preferably, the numbers of the holding parts 41 and the matching parts 42 are the same and correspond one-to-one. For example, the number of the holding parts 41 is two, so that the propeller 11 forms a two-claw structure, and the two holding parts 41 can be symmetrically arranged on the first installation surface 1121 of the installation part 112 of the propeller 11 with the axis of the propeller 11 as the center , correspondingly, the two matching parts 42 are symmetrically arranged with the axis of the mounting seat 20 as the center. When there are multiple, for example, three, or more than three holding members 41 , the plurality of holding members 41 are evenly distributed around the axis of the propeller 11 . Correspondingly, the plurality of matching portions 42 take the axis of the mounting seat 20 as the center. Evenly distributed in the center. The clamping member 41 and the matching portion 42 are symmetrically or evenly distributed, which can make the connection between the propeller 11 and the mounting seat 20 as balanced as possible, keep the propeller 11 rotating more reliably, and more effectively reduce the possibility of propeller shooting.

In some embodiments, the holder 41 may include a connecting portion 411 and an extending portion 412. One end of the connecting portion 411 is connected to the mounting portion 112 of the propeller 11, and the other end of the connecting portion 411 is connected to the extending portion 412. There is an included angle between the entry portion 412 and the connection portion 411 .

Specifically, the connecting portion 411 can be fixedly connected with the mounting portion 112. Preferably, the connecting portion 411 and the mounting portion 112 are integrally formed and extend from the first mounting surface 1121 of the mounting portion 112 in a direction away from the paddle 111. The connecting portion 411 It may be located at an edge position of the first installation surface 1121 and extend downward from the edge position of the first installation surface 1121 in a direction perpendicular to the surface of the first installation surface 1121 . The protruding portion 412 may be disposed at the end of the connecting portion 411 , and an included angle may be formed between the protruding portion 412 and the connecting portion 411 , and the included angle may be 30° to 90°. Preferably, the protruding portion 412 and the connecting portion 411 The included angle between them is 90°, that is, the extending portion 412 and the connecting portion 411 are perpendicular to each other.

The protruding portion 412 is used to protrude into the fitting portion 42 , and the thickness of the protruding portion 412 may be slightly smaller than the height of the fitting portion 42 , so that the protruding portion 412 can be rotated into and out of the fitting portion 42 . Preferably, the protruding portion 412 extends outward along the radial direction of the mounting portion 112 .

Referring to FIGS. 8 and 9 , in the embodiment of the present application, the protruding portion 412 protrudes into the matching portion 42 , and the matching portion 42 extends into the recess from the groove 421 on the second mounting surface 21 and partially into the groove The protrusions 422 in the 421 are formed, that is to say, the protruding portion 412 protrudes into the mounting seat 20 to realize the locking of the propeller 11 and the mounting seat 20 . When the retaining member 41 is rotated in the first direction until the engaging portion 42 enters the locked state, the protruding portion 422 can limit the protruding portion 412 in the vertical direction to prevent the propeller 11 from disengaging from the mounting seat 20 during rotation , when the holding member 41 rotates out from the matching portion 42 in the second direction and enters the unlocked state, the protruding portion 412 and the protruding portion 422 are staggered, and the protruding portion 412 can be disengaged from the groove 421, so that the propeller 11 can be removed from the installation Remove the seat 20.

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

In this way, the first matching member 12 and the holding member 41 are arranged on the same circumference, and the second matching member 30 is installed on the matching portion 42 without increasing the radial dimension of the propeller 11 , which is beneficial to the miniaturization of the propeller 11 .

Specifically, in such an embodiment, in the unlocked state, the first matching member 12 and the second matching member 30 at least partially overlap each other, and in the locked state, the first matching member 12 and the second matching member 30 are at least partially staggered from each other. In this way, when the propeller 11 is installed, the first fitting 12 and the second fitting 30 can be used to determine whether the propeller 11 matches the mounting seat 20 when it is in the unlocked state without performing a locking operation.

It can be understood that, in such an embodiment, the number of the first matching parts 12 may be multiple, the number of the holding members 41 may also be multiple, and a first matching member 41 is provided between two adjacent holding members 41 . The second matching member 30 is arranged on the matching portion 42, so that when the first matching member 12 and the second matching member 30 are both magnets and attract each other, the first matching member 12 and the second matching member 30 are mutually attracted. The mutual attraction between them will guide the user to rotate the propeller 11 to the preset position, so that the holding member 41 can extend into the groove 422 for the user to perform locking operation. In this case, the first matching member 12 and the The second fitting 30 has the functions of guiding and positioning, which improves the user experience.

Please refer to FIG. 4 and FIG. 7 , in some embodiments, the propeller assembly 10 further includes an elastic member 50 disposed between the propeller 11 and the mounting seat 20 , and the elastic member 50 is used to provide elastic force so that the holding member 41 can be held by the holding member 41 . In the fitting portion 42, the locked state is maintained.

In this way, through the arrangement of the elastic member 50, the locking stability of the holding member 41 and the matching portion 42 can be improved. Under the force of the elastic force, the holding member 41 will be stably fixed in the matching portion 42. When the 41 is released from the matching portion 42, the elastic force of the elastic member 50 must be overcome first, and the holding member 41 must be turned out in the second direction. Specifically, the elastic member 50 in this embodiment may be an axially telescopic spring, or other elastic elements that can expand and contract in the axial direction.

Further, in some embodiments, both the first matching member 12 and the second matching member 30 are magnets, and the first matching member 12 is used between the second matching member 30 and the second matching member 30 when it is close to and not in contact with the second matching member 30 . A repulsive force or an attractive force is generated to indicate whether the propeller 11 is matched with the mounting seat 20 , and 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 .

In this way, when the first matching member 12 and the second matching member 30 are magnets, the attractive force between the two is smaller than the elastic force provided by the elastic member 50, which can avoid the friction between the first matching member 12 and the second matching member 30. The attractive force of the propeller 11 is too large, so that the propeller 11 automatically overcomes the elastic force of the spring under the action of the attractive force, so that the holding member 41 can rotate in the second direction, thereby causing the propeller shooting phenomenon and improving the use safety of the propeller 11 .

Referring to FIGS. 4 and 6 , a propeller assembly 10 according to another embodiment of the present application includes a propeller 11 and a first fitting 12 , the propeller 11 includes a plurality of blades 111 and a mounting portion 112 , and the plurality of blades 111 are located along the mounting portion 112 . Circumferential intervals are provided on the mounting portion 112 , the mounting portion 112 includes a first mounting surface 1121 facing the mounting seat 20 , and the mounting portion 112 is used to be detachably mounted on the mounting seat 20 . The first fitting 12 is mounted on the first mounting surface 1121 and is used to cooperate with the second fitting 30 mounted on the mounting base 20 , and the propeller 11 is prompted when the first fitting 12 is close to and not in contact with the second fitting 30 . Whether it matches the mount 20.

In this way, when the propeller 11 is installed, the first fitting 12 and the second fitting 30 installed on the first mounting surface 1121 will cooperate to prompt the propeller 11 whether the propeller 11 is close to and does not contact the mounting seat 20 Matching with the mounting seat 20, the user can know whether the propeller 11 matches the mounting seat 20 without installing and snapping the propeller 11 and the mounting seat 20, which reduces the installation time and improves the user's installation and use experience.

Please refer to FIG. 10 . FIG. 10 is an embodiment of a power system 100 provided by the present application. The power system 100 includes a motor 60 , a mounting seat 20 , a second fitting 30 and the propeller assembly 10 of any of the above embodiments. The mounting seat 20 is connected to the rotor of the motor 60 , and the second fitting 30 is mounted on the mounting seat 20 . The propeller assembly 10 is detachably mounted on the mounting seat 20 , wherein the first fitting 12 is used for the second fitting 30 to cooperate to prompt whether the propeller 11 is in contact with the second fitting 30 when the first fitting 12 is close to and not in contact with the second fitting 30 . The mounts 20 are matched.

In the power system 100 of the embodiment of the present application, the propeller 11 is mounted with the first fitting 12 , and the first fitting 12 is used to cooperate with the second fitting 30 mounted on the mounting base 20 to be connected to the first fitting 12 . When the 12 is close to and not in contact with the second fitting 30 , it prompts whether the propeller 11 matches the mounting seat 20 . In this way, when the propeller 11 is installed, when the propeller 11 is approached without contacting the mounting seat 20, the first fitting 12 and the second fitting 30 will cooperate to indicate whether the propeller 11 matches the mounting seat 20, so that , the user can know whether the propeller 11 is matched with the mounting seat 20 without installing and snapping the propeller 11 and the mounting seat 20 , which reduces the installation time and improves the user's installation and use experience.

Specifically, in this embodiment, the propeller assembly 10 is detachably connected to the mounting seat 20 , the mounting seat 20 is connected to the rotor of the motor 60 , and the mounting seat 20 and the propeller assembly 10 can be rotated under the driving of the motor 60 to provide flight power .

Please refer to FIGS. 4 and 7 , in some embodiments, a limit shaft 70 is further provided in the middle of the mounting seat 20 , the limit shaft 70 passes through the mounting seat 20 , the propeller 11 is provided with a limit recess, and the limit shaft 70 It cooperates with the limiting recess to prevent the propeller 11 from swinging in the radial direction, thereby improving the rotation stability of the propeller 11 .

Specifically, the limiting concave portion may be located in the middle of the mounting portion 112 of the propeller 11 , and the axis of the limiting shaft 70 may coincide with the rotation axis of the motor 60 . In this way, the rotation axis of the motor 60 and the rotation axis of the propeller 11 can be made to coincide with the axis of the limit shaft 70, which can make the propeller 11 more stable when rotating, and the rotor of the motor 60 can drive the propeller 11 and the mounting seat 20 to stabilize rotation. It can be understood that, in such an embodiment, the elastic member 50 can be sleeved on the limit shaft 70, so that the limit shaft 70 can play a role in radially limiting the elastic member 50, preventing the elastic member 50 from moving along the limit shaft 70. The radial deflection enables the elastic member 50 to expand and contract only in the axial direction.

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

In this way, when the mounts 20 are different types of mounts 20 , they can be distinguished by installing different types of second fittings 30 , and different types of second fittings 30 are different from the same first fitting 12 . Prompt information to prompt whether the propeller 11 matches the mounting seat 20 .

Please refer to FIG. 10 . FIG. 10 is a schematic structural diagram of an unmanned aerial vehicle 1000 according to one embodiment of the present application. The unmanned aerial vehicle 1000 includes a fuselage 200 and the power system 100 of the above embodiment, and the power system 100 is installed on the fuselage 200 .

In the unmanned aerial vehicle 1000 of the embodiment of the present application, the propeller 11 is mounted with the first fitting 12 , and the first fitting 12 is used to cooperate with the second fitting 30 installed on the mounting base 20 to cooperate with the first fitting When the piece 12 is close to and not in contact with the second fitting piece 30 , it prompts whether the propeller 11 matches the mounting seat 20 . In this way, when the propeller 11 is installed, when the propeller 11 is approached without contacting the mounting seat 20, the first fitting 12 and the second fitting 30 will cooperate to indicate whether the propeller 11 matches the mounting seat 20, so that , the user can know whether the propeller 11 is matched with the mounting seat 20 without installing and snapping the propeller 11 and the mounting seat 20 , which reduces the installation time and improves the user's installation and use experience.

It can be understood that in the present application, the power system 100 is used to provide power for the UAV 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 For forward propeller, at least one motor 60 is a forward motor, at least one propeller 11 is a reverse propeller, and at least one motor 60 is a reverse motor 60 . The types of the first fittings 12 on the forward propeller and the reverse propeller are different, and the second fitting 30 on the mounting seat 20 matched with the forward propeller and the second matching piece 30 on the mounting seat 20 matched with the reverse propeller are different. different types. In this way, when the propeller 11 is installed, the user can know in advance whether the propeller 11 matches the mounting seat 20 through the cooperation of the different first fittings 12 and the second fittings 30, thereby saving installation time and improving The installation and use experience, the specific types of the first matching member 12 and the second matching member 30 and the specific installation and matching process are as described above, and will not be repeated here.

In the description of this specification, reference is made to the terms "some embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc. The description means that a particular feature, structure, material, or characteristic described in connection with the described 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 embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features delimited with "first", "second" may expressly or implicitly include at least one of said features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Variations, modifications, substitutions, and alterations are made to the embodiments, and the scope of the present application is defined by the claims and their equivalents.

Claims

A propeller assembly, characterized in that, comprising:

propeller;

a first fitting mounted on the propeller;

The first fitting is used to cooperate with the second fitting installed on the mounting seat to prompt whether the propeller is in contact with the mounting seat when the first fitting is close to and does not contact the second fitting. match.
The propeller assembly according to claim 1, wherein the first fitting member comprises a sensor, the second fitting member comprises a sensing member, and the sensor is used for when the sensing member is close to and does not contact the The sensor generates sensing information with the sensing element to prompt whether the propeller matches the mounting seat.
The propeller assembly according to claim 1, wherein both the first matching member and the second matching member are magnets, and the first matching member is used for approaching and not contacting the second matching member A repulsive force or an attractive force is generated between the second mating piece and the second fitting to prompt whether the propeller matches the mounting seat.
The propeller assembly according to claim 3, wherein the magnetic pole on the side of the first matching member away from the mounting surface of the first matching member is N pole or S pole, and the second matching member is far away from all the magnetic poles. The magnetic pole on one side of the mounting surface of the second fitting is N pole or S pole.
The propeller assembly according to claim 1, wherein the propeller is a first type of propeller or a second type of propeller;

The type of the first fittings mounted on the first type of paddles is different from the type of first fittings mounted on the second type of paddles.
The propeller assembly according to any one of claims 1-4, wherein the propeller includes a first propeller and a second propeller, the mounting seat includes a first mounting seat and a second mounting seat, and the first The first matching piece is installed on both the paddle and the second paddle, the second matching piece is installed on both the first mounting seat and the second mounting seat, and the first paddle and the the first mounting seat is matched, and the second paddle is matched with the second mounting seat;

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 type of the second fitting mounted on the first mount is different from the type of the second fitting mounted on the second mount.
The propeller assembly according to claim 6, wherein the first propeller is a forward propeller of an unmanned aerial vehicle, and the second propeller is a reverse propeller of an unmanned aerial vehicle.
The propeller assembly according to claim 1, wherein the propeller comprises a mounting portion and a blade connected to the mounting portion, the mounting portion is configured to be detachably connected to the mounting seat, the mounting portion The first fitting is mounted on the mounting portion.
The propeller assembly according to claim 8, wherein the mounting portion comprises a first mounting surface facing the mounting seat, and the first fitting member is mounted on the first mounting surface;

The mounting seat includes a second mounting surface facing the propeller, and the second fitting is mounted on the second mounting surface and corresponds to the first fitting.
The propeller assembly according to claim 9, wherein a first installation groove is formed on the first installation surface;

The first fitting is installed in the first installation groove and partially protrudes from the first installation groove; or

the first fitting is installed in the first installation groove and is completely received in the first installation groove; or

The first fitting is installed in the first installation groove and the upper surface of the first fitting is flush with the first installation surface.
The propeller assembly according to claim 9, wherein a second installation groove is formed on the second installation surface;

The second fitting is installed in the second installation groove and partially protrudes from the second installation groove; or

the second fitting is mounted in the second mounting groove and is completely received in the second mounting groove; or

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

The first matching piece is sector-shaped, and both the inner arc and the outer arc of the first matching piece are concentric with the first mounting surface;

The second matching piece is also sector-shaped, and both the inner arc and the outer arc of the second matching piece are concentric with the second mounting surface.
The propeller assembly according to claim 1, wherein the propeller is provided with a first mark, the mounting seat is provided with a second mark, and the first mark and the second mark are used to indicate the Whether the propeller matches the mounting seat.
The propeller assembly according to claim 1, wherein the propeller assembly further comprises a locking mechanism for detachably locking the propeller on the mounting seat;

The locking mechanism includes:

a holder, arranged on the propeller;

a matching portion, which is arranged on the mounting seat, and after the propeller and the mounting seat are docked to a preset position, the holding member can be rotated into the matching portion along a first direction to enter a locked state;

The holding member can be rotated out of the matching portion along a second direction to enter an unlocked state, wherein the first direction is opposite to the second direction.
The propeller assembly according to claim 14, wherein the first fitting member and the holding member are arranged at intervals along the circumferential direction of the propeller and are located on the same circumference as the holding member, and the first fitting member and the holding member are arranged at intervals along the circumferential direction of the propeller Two fittings are mounted on the fitting portion.
The propeller assembly according to claim 15, wherein, in the unlocked state, the first matching member and the second matching member at least partially overlap each other, and in the locked state, the first matching member at least partially staggered from the second mating piece.
The propeller assembly according to claim 14, wherein the propeller assembly further comprises an elastic member disposed between the propeller and the mounting seat, and the elastic member is used for providing elastic force to make the clamping The fitting is retained in the fitting portion to maintain the locked state.
The propeller assembly according to claim 17, wherein the first fitting and the second fitting are magnets, and the first fitting is used when approaching and not contacting the second fitting A repulsive force or an attractive force is generated with the second matching piece to prompt whether the propeller matches the mounting seat, and the attractive force is smaller than the elastic force provided by the elastic piece.
A propeller assembly, characterized in that, comprising:

A propeller, the propeller includes a plurality of blades and a mounting portion, the plurality of blades are arranged on the mounting portion at intervals along the circumferential direction of the mounting portion, and the mounting portion includes a first portion facing the mounting seat. an installation surface, the installation part is used to be detachably installed on the installation seat;

A first matching piece, the first matching piece is mounted on the first mounting surface and used for matching with a second matching piece mounted on the mounting seat, when the first matching piece is close to and does not contact the first matching piece When there are two matching parts, it will prompt whether the propeller matches the mounting seat.
A power system, characterized in that it includes:

motor;

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

a second matching piece, the second matching piece is mounted on the mounting seat;

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

Wherein, the first matching piece is used for matching with the second matching piece to prompt whether the propeller matches the mounting seat when the first matching piece approaches and does not contact the second matching piece.
The power system according to claim 20, wherein the mounting seat is a first type mounting seat or a second type mounting seat;

The type of the second fittings mounted on the mounts of the first type is different from the type of the second fittings mounted on the mounts of the second type.
An unmanned aerial vehicle, characterized in that it includes:

airframe; and

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