CN215475739U

CN215475739U - Many rotor screw subassemblies, driving system and unmanned aerial vehicle

Info

Publication number: CN215475739U
Application number: CN202120101611.0U
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: 2022-01-11
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a multi-rotor propeller assembly, a power system and an unmanned aerial vehicle. The first fitting piece is installed on the screw, and the first fitting piece is used for cooperating with the second fitting piece installed on the mount pad so as to indicate whether the screw is matched with the mount pad when the first fitting piece is close to and does not contact the second fitting piece. So, when the installation screw, when being close to and not contacting the mount pad with the screw, first fitting piece and second fitting piece can the mating reaction 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 whether this screw matches with the mount pad in advance, has reduced installation time, improves user's installation and use and experiences.

Description

Many rotor screw subassemblies, driving system and unmanned aerial vehicle

Technical Field

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a multi-rotor propeller assembly, a power system and an unmanned aerial vehicle.

Background

In the related art, the propeller of the drone generally includes a reverse propeller and a forward propeller, which need to be installed on a reverse motor and a forward motor, respectively. However, in the process of installing the propeller, the user can not judge what type of propeller is being installed, and only when the condition that the installation is not good appears in the installation process, the user can know that the propeller type is not good, for example, when installing the reverse propeller, if the user takes the reverse propeller to install on the forward motor, the user can install the reverse propeller on the motor and just know that the installation is not good, so that the installation time is increased, and the installation and use experience of the user is reduced.

SUMMERY OF THE UTILITY MODEL

Based thereon, the present invention provides a multi-rotor propeller assembly, a power system and a drone.

According to a first aspect of the present invention, there is provided a multi-prop-rotor assembly, comprising:

a propeller comprising blades;

a first mating member mounted on the propeller;

the first fitting piece is used for being matched with a second fitting piece installed on the installation seat so as to prompt whether the propeller is matched with the installation seat or not when the first fitting piece is close to and does not contact the second fitting piece.

According to a second aspect of the present invention, there is also provided another multi-rotor propeller assembly, the propeller assembly comprising:

the propeller comprises a plurality of blades and a mounting part, the blades 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 detachably mounted on the mounting seat;

the first fitting piece is arranged on the first mounting surface and used for being matched with a second fitting piece arranged on the mounting seat, and the first fitting piece is close to and does not contact the second fitting piece and prompts whether the propeller is matched with the mounting seat or not.

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

a motor;

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

the second fitting piece is arranged on the mounting seat;

the multi-prop-rotor assembly of any preceding claim, wherein the multi-prop-rotor assembly is removably mounted to the mount;

the first fitting piece is used for the second fitting piece to be matched so as to prompt whether the propeller is matched with the mounting seat or not when the first fitting piece is close to and does not contact the second fitting piece.

According to a fourth aspect of the utility model, there is provided a drone comprising:

a body; and

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

In the multi-rotor propeller assembly, the power system and the unmanned aerial vehicle of the embodiment of the utility model, the first fitting piece is arranged on the propeller and is used for being matched with the second fitting piece arranged on the mounting seat so as to indicate whether the propeller is matched with the mounting seat or not when the first fitting piece is close to and does not contact the second fitting piece. So, when the installation screw, when being close to and not contacting the mount pad with the screw, first fitting piece and second fitting piece can the mating reaction 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 whether this screw matches with the mount pad in advance, has reduced installation time, improves user's installation and use and experiences.

Additional aspects and advantages of embodiments of the utility model 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 utility model.

Drawings

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

FIG. 1 is a schematic representation of a multi-rotor propeller assembly according to an embodiment of the present invention;

FIG. 2 is another schematic structural view of a multi-rotor propeller assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a multi-rotor propeller assembly and mounting base of an embodiment of the present invention;

FIG. 4 is another schematic structural view of a multi-rotor propeller assembly and mounting base according to an embodiment of the present invention;

FIG. 5 is a further schematic structural view of a multi-rotor propeller assembly and mounting base of an embodiment of the present invention;

FIG. 6 is a further schematic representation of a multi-rotor propeller assembly and mounting base according to an embodiment of the present invention;

FIG. 7 is a further schematic illustration of a multi-rotor propeller assembly and mounting base according to an embodiment of the present invention;

FIG. 8 is a schematic view of a multi-rotor propeller assembly and mounting base of an embodiment of the present invention in an installed condition;

FIG. 9 is a schematic view of another installation of a multi-rotor propeller assembly and a mount of an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a drone according to an embodiment of the utility model.

Description of the main element symbols:

multi-prop-rotor assembly 10, propeller 11, blades 111, mounting portion 112, first mounting surface 1121, first mating member 12, first paddle 13, second paddle 14;

the mounting seat 20, the second mounting surface 21, the second mounting groove 211, the second mating member 30, the locking mechanism 40, the retaining member 41, the connecting portion 411, the extending portion 412, the mating portion 42, the recess 421, the protrusion 422, and the elastic member 50;

a power system 100, a motor 60 and a limit shaft 70;

unmanned aerial vehicle 1000, fuselage 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 4, a multi-rotor propeller assembly 10 according to an embodiment of the present invention includes a propeller 11 and a first fitting member 12, the first fitting member 12 being mounted on the propeller 11, the propeller 11 including blades 111. The first fitting 12 is adapted to cooperate with a second fitting 30 mounted on the mount 20 to indicate whether the propeller 11 is mated with the mount 20 when the first fitting 12 is close to and does not contact the second fitting 30.

It will be appreciated that in the related art, the propellers of a drone generally comprise a counter-propeller and a forward propeller, both of which need to be mounted on a counter-motor and a forward motor, respectively. However, in the process of installing the propeller, the user can not judge what type of propeller is being installed, and only when the condition that the installation is not good appears in the installation process, the user can know that the propeller type is not good, for example, when installing the reverse propeller, if the user takes the reverse propeller to install on the forward motor, the user can install the reverse propeller on the motor and just know that the installation is not good, so that the installation time is increased, and the installation and use experience of the user is reduced.

In the multi-rotor propeller assembly 10 according to the embodiment of the present invention, the first fitting member 12 is mounted on the propeller 11, and the first fitting member 12 is configured to be fitted with the second fitting member 30 mounted on the mount 20 to indicate whether the propeller 11 is fitted with the mount 20 when the first fitting member 12 is close to and does not contact the second fitting member 30. So, when installation screw 11, when being close to and not contacting mount pad 20 with screw 11, first fitting piece 12 and second fitting piece 30 can the mating reaction in order to indicate whether this screw 11 matches with this mount pad 20, like this, the user need not to install the lock to screw 11 and mount pad 20 and can learn whether this screw 11 matches with mount pad 20 in advance, has reduced installation time, improves user's installation and use and experiences.

Specifically, in the embodiment of the present invention, the number of the first fitting members 12 may be one, or two or more, and the number of the second fitting members 30 matches the number of the first fitting members 12, which is not limited herein.

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

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

In such embodiments, the sensor may be a sensing element such as an infrared light emitter, the sensing element may be an infrared light receiver, and the like, for example, the sensor is an infrared light emitter, the sensing element is an infrared light receiver, an infrared light emitter may be mounted on the propeller 11, an infrared sensor may emit infrared light, during the mounting of the propeller 11, the propeller 11 is gradually brought close to the mounting 20, the infrared sensor is brought close to the infrared light receiver, and the infrared light emitted by the infrared sensor can be received by the infrared light receiver, so that, by providing different types or different frequencies of infrared light emitters on different propellers 11, an infrared light receiver for receiving infrared light of a specific frequency is then mounted on the mount 20, and, thus, whether the propeller 11 is matched with the mount 20 can be determined by determining the frequency of infrared light received by the infrared light receiver. Of course, it is understood that in some embodiments, an infrared light receiver may be disposed on the propeller 11, and an infrared light emitter may be disposed on the mounting base 20, which is not limited herein.

Referring to fig. 4, in some embodiments, the first mating member 12 and the second mating member 30 may be both magnets, and the first mating member 12 is used to generate a repulsive force or an attractive force with the second mating member 30 when the first mating member 12 is close to and does not contact the second mating member 30, so as to indicate whether the propeller 11 is matched with the mount 20.

In this way, the first mating member 12 and the second mating member 30 can be provided with magnets, and the attraction force or the repulsion force between the magnets can prompt the user whether the propeller 11 is matched with the mounting seat 20, so that the implementation mode is simple and reliable.

Specifically, in such an embodiment, the screw propeller 11 and the mount 20 may be matched to each other when they are attracted to each other, or the screw propeller 11 and the mount 20 may be matched to each other when they are repelled from each other. It will be appreciated that in order to enhance the user's mounting experience, in the present invention it is preferred to indicate that the propeller 11 and the mount 20 are matched when they are attracted to each other, so that the user can readily mount the propeller 11 on the mount 20 when the user perceives the attraction, without having to press the propeller 11 hard to overcome the repelling force.

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

In this way, the two magnets with the same or different magnetic poles facing each other can cooperate to generate an attractive or repulsive force to indicate whether the propeller 11 is matched with the mount 20.

Specifically, in such an embodiment, the side of the first fitting member 12 facing the mount 20 is an N pole or an S pole, and the side of the second fitting member 30 facing the propeller 11 is an N pole or an S pole, and when the opposite sides of the two first fitting members 12 and the second fitting member 30 are of the same polarity, they repel each other, and when the opposite sides are of different polarities, they attract each other. Thus, when the propeller 11 is installed by the user approaching the mounting base 20, the user feels repulsive force or attractive force, so that the user can sense whether the propeller 11 is matched with the mounting base 20 without buckling the propeller 11 on the mounting base 20, and the user does not need to perform installation operation to know whether the propeller 11 is matched with the mounting base 20, thereby reducing installation time and providing installation experience of the user.

In certain embodiments, the propeller 11 is a first type of propeller or a second type of propeller. The type of first mating member 12 mounted on the first type of paddle is different from the type of first mating member 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 mating members 12, and different types of first mating members 12 and the same second mating member 30 can generate different prompt messages to prompt whether the propellers 11 are matched with the mounting base 20.

In particular, in such embodiments, the propeller 11 may be a positive or negative propeller of the drone 1000, i.e. the first type of propeller may be a positive propeller and the second type of propeller may be a negative propeller, the first mating member 12 mounted on the positive propeller and the first mating member 12 mounted on the negative propeller being different types of mating members. Taking the first mating member 12 and the second mating member 30 as an example, in one embodiment, a side of the magnet installed on the positive paddle facing the mounting seat 20 may be an N pole, a side of the magnet installed on the negative paddle facing the mounting seat 20 may be an S pole, a side of the second mating member 30 on the mounting seat 20 engaged with the positive paddle facing the propeller 11 may be an S pole, and a side of the second mating member 30 on the mounting seat 20 engaged with the negative paddle facing the propeller 11 may be an N pole, so that when a user brings the positive paddle close to the mounting seat 20, if the propeller 11 and the mounting seat 20 attract each other, it indicates that the propeller 11 and the mounting seat 20 are matched, otherwise, it indicates that the propeller 11 and the mounting seat 20 are not matched. Of course, it is understood that the first mating member 12 may be an infrared transmitter capable of emitting infrared light with different frequencies, and the second mating member 20 may be an infrared receiver for receiving infrared light with a specific frequency, so that by installing different infrared transmitters on different types of paddles, the infrared receiver on the mounting base 20 can determine whether the propeller 11 is matched with 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 paddle 13 and a second paddle 14, the mounting base 20 includes a first mounting base 22 and a second mounting base 23, the first paddle 13 and the second paddle 14 are both provided with a first mating member 12, the first mounting base 22 and the second mounting base 23 are both provided with a second mating member 30, the first paddle 13 is matched with the first mounting base 22, and the second paddle 14 is matched with the second mounting base 23;

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

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

Specifically, taking the first mating member 12 and the second mating member 30 as examples of magnets, in one embodiment, a side of the magnet mounted on the first paddle 13 facing the mounting seat 20 may be an N pole, a side of the magnet mounted on the second paddle 14 facing the mounting seat 20 may be an S pole, a side of the second mating member 30 on the first mounting seat 22 cooperating with the first paddle 13 facing the propeller 11 may be an S pole, and a side of the second mating member 30 on the second mounting seat 23 cooperating with the second paddle 14 facing the propeller 11 may be an N pole, so that when a user brings the first paddle 13 close 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 match, and the user can directly perform the installation, and when the user brings the first paddle 13 close to the second mounting seat 23, the first paddle 13 and the second mounting seat 23 repel each other, thus alerting the user that the first paddle 13 is not matched with the second mount 23 and cannot be directly mounted, and needs to be mounted to another mount 20. When the user closes 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 is matched with the second mounting seat 23, and the installation can be directly performed, when the user closes 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 is not matched with the first mounting seat 22, and the installation cannot be directly performed, and the installation is required to be performed on other mounting seats 20. In this way, the first fitting piece 12 and the second fitting piece 30 with different types are arranged on different paddles and different mounting seats 20, so that a user can prompt the user whether the propeller 11 is matched with the mounting seat 20 or not in advance when the propeller 11 is mounted, and the mounting time is saved.

It will be appreciated that, referring to figure 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 invention, the forward propeller of the drone 1000 is a forward rotating propeller, for example, a clockwise rotating propeller, and the reverse propeller of the drone 1000 is a reverse rotating propeller, for example, a counterclockwise rotating propeller, and the rotation directions of the forward propeller and the reverse propeller are opposite, although it is understood that, in some embodiments, the forward propeller may also be a counterclockwise rotating propeller, and the reverse propeller may also be a clockwise rotating propeller, and in particular, the present invention is not limited thereto, and only the rotation directions of the forward propeller and the reverse propeller are opposite.

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

In this manner, the first fitting member 12 is mounted on the mounting portion 112 such that the first fitting member 12 faces the mounting seat 20, and the first fitting member 12 is mounted at the edge, which is a relatively easy structure.

Specifically, in such an embodiment, the number of the blades 111 is at least two, when two blades 111 are included, the two blades 111 may be arranged in a straight line (as shown in fig. 5), when more than two blades 111 are provided, each blade 111 may be uniformly distributed around the mounting portion 112, for example, three blades 111 (as shown in fig. 10), and the included angle between each blade 111 may be 120 °. In the present embodiment, the blade 111 may be directly and integrally formed with the mounting portion 112, or may be formed separately from the mounting portion 112 and then the blade 111 is mounted on the mounting portion 112 by a fixing member or a blade clamp or other elements and structures, which is not limited herein.

Referring to fig. 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 member 30 is mounted on the second mounting surface 21 and corresponds to the first fitting member 12.

In this way, the first fitting piece 12 and the second fitting piece 30 are respectively mounted on the first mounting surface 1121 and the second mounting surface 21, and when the propeller 11 is mounted, the first fitting piece 12 and the second fitting piece 30 can be engaged only by approaching the first mounting surface 1121 of the propeller 11 to the second mounting surface 21 so as to indicate whether the propeller 11 is matched with the mount 20.

Further, in some embodiments, a first mounting groove (not shown) is formed on 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 can position and mount the first fitting member 12 to prevent the first fitting member 12 from coming off the propeller 11.

In particular, the first fitting member 12 can be fixedly mounted in the first mounting groove by means of glue or by means of snap-fitting or screw-fastening.

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

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

In this manner, the second mounting slot can position and mount the second mating member 30 to prevent the second mating member 30 from being detached from the mounting seat 20. In particular, the second fitting member 30 can be fixedly mounted in the second mounting groove by means of glue or by means of snap-fit or screw-fastening.

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

Referring to fig. 6 and 7, in some embodiments, the first mounting surface 1121 and the second mounting surface 21 are circular. The first mating member 12 has a sector shape, and an inner arc and an outer arc of the first mating member 12 are concentric with the first mounting surface 1121. The second mating member 30 is also sector-shaped, and both the inner arc and the outer arc of the second mating member 30 are 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 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 fitting member 12 can be more beautiful, and the arrangement of the second fitting member 30 and the mounting base 20 can be more beautiful.

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

In some embodiments, the propeller 11 is provided with a first mark, and the mount 20 is provided with a second mark, and the first mark and the second mark are used for indicating whether the propeller 11 is matched with the mount 20.

In this way, the first mark and the second mark respectively arranged on the propeller 11 and the mounting seat 20 can further assist the user 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, color indicia, or other types of indicia. Also, the first mark and the second mark are exemplified by pattern marks, for example, in one example, a triangular pattern mark may be provided on the propeller 11, and a triangular pattern mark 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 can be understood that different types of propellers 11 and different mounts 20 may be provided with different pattern marks, for example, triangular marks may be provided on the forward propeller and forward propeller mounts 20 of the drone 1000, and circular marks may be provided on the reverse propeller and reverse propeller mounts 20, so that a 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, multi-rotor propeller assembly 10 further includes a locking mechanism 40, where locking mechanism 40 is configured to removably lock propeller 11 to mount 20. The locking mechanism 40 includes a catch 41 and a mating portion 42. The clamping member 41 is disposed on the propeller 11, the matching portion 42 is disposed on the mounting base 20, and after the propeller 11 and the mounting base 20 are butted to a preset position, the clamping member 41 can be rotated into the matching portion 42 along a first direction to enter a locking state. The catch 41 can be rotated out of the fitting portion 42 in a second direction, which is opposite to the first direction, to enter an unlocked state.

In this way, the detachable locking of the propeller 11 and the mounting base 20 can be realized through the mounting cooperation of the retainer 41 and the fitting part 42, and the structure is simple. Meanwhile, the locking mechanism 40 can realize the 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 assembly and disassembly 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 plurality of positions on the edge of the mounting base 20 are provided with protrusions 422, the protrusions 422 extend into the groove 421, and the protrusions 422 and the groove 421 together form the engaging portion 42, so that the retaining member 41 extends into the engaging portion 42, and the retaining member 41 can be prevented from being separated from the engaging portion 42 along the first direction, and only the retaining member 41 is allowed to be separated from the engaging portion 42 along the second direction. As shown in fig. 7, the protrusion 422 extends into the recess 421, the holding member 41 can enter the recess 421 from a position not blocked by the protrusion 422, and then the screw 11 is rotated in the first direction, and the holding member 41 rotates in the matching portion 42 defined by the protrusion 422 and the recess 421 to enter a locking state, in which the protrusion 422 vertically limits the holding member 41 to prevent the screw 11 from being separated from the matching portion 42 in the vertical direction (as shown in fig. 8). In the locked state, the propeller 11 may be rotated in the second direction in a reverse direction, so that the retainer 41 is rotated out of the engaging portion 42 defined by the protrusion 422 and the recess 421 (i.e., the retainer 41 is rotated to a position in the recess 421 not shielded by the protrusion 422) to enter the unlocked state (as shown in fig. 9), at which time, the protrusion 422 does not block the retainer 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 set as the first direction and the counterclockwise direction may be set as the second direction.

In addition, in the present embodiment, the number of the retainers 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 retainers 41 and the matching parts 42 is the same, and the retainers correspond to each other one by one. For example, the number of the retainers 41 is two, so that the propeller 11 forms a two-claw structure, the two retainers 41 may be symmetrically disposed on the first mounting surface 1121 of the mounting portion 112 of the propeller 11 with respect to the axis of the propeller 11, and correspondingly, the two engaging portions 42 are symmetrically disposed with respect to the axis of the mounting base 20. When the retainer 41 includes a plurality of, for example, three, or more than three, the plurality of retainers 41 are uniformly distributed around the axis of the propeller 11, and correspondingly, the plurality of engaging portions 42 are uniformly distributed around the axis of the mount 20. The clamping pieces 41 and the matching parts 42 are symmetrically or uniformly distributed, so that the connection stress between the propeller 11 and the mounting base 20 is balanced as much as possible, the propeller 11 can be more reliably kept to rotate, and the possibility of propeller shooting is more effectively reduced.

In some embodiments, the retaining member 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, the other end of the connecting portion 411 is connected to the extending portion 412, and an included angle is formed between the extending portion 412 and the connecting portion 411.

Specifically, the connection portion 411 may be fixedly connected to the mounting portion 112, 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 protruding portion 412 may be disposed at an end of the connecting portion 411, and the protruding portion 412 may form an included angle with the connecting portion 411, the included angle may be 30 ° to 90 °, and preferably, the included angle between the protruding portion 412 and the connecting portion 411 is 90 °, that is, the protruding portion 412 and the connecting portion 411 are perpendicular to each other.

The protrusion 412 is configured to protrude into the mating portion 42, and the thickness of the protrusion 412 may be slightly less than the height of the mating portion 42 to facilitate rotation of the protrusion 412 into and out of the mating portion 42. Preferably, the protruding portion 412 extends outward in a radial direction of the mounting portion 112.

Referring to fig. 8 and 9, in the embodiment of the present invention, the protruding portion 412 protrudes into the matching portion 42, and the matching portion 42 is formed by the recess 421 on the second mounting surface 21 and the protrusion 422 partially protruding into the recess 421, that is, the protruding portion 412 protrudes into the mounting base 20, so as to lock the propeller 11 and the mounting base 20. When the retainer 41 is rotated in the first direction until the mating portion 42 enters 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 mounting base 20 when the retainer 41 is rotated in the second direction until the mating portion 42 enters the unlocked state, the protrusion 412 is staggered 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 mounting base 20.

In some embodiments, the first mating member 12 and the retaining member 41 are spaced apart from each other in the circumferential direction of the propeller 11 and are located on the same circumference as the retaining member 41, and the second mating member 30 is mounted on the mating portion 42.

Thus, the first fitting member 12 and the retaining member 41 are arranged 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 for the miniaturization of the propeller 11.

Specifically, in such embodiments, in the unlocked state, the first mating member 12 and the second mating member 30 at least partially overlap one another, and in the locked state, the first mating member 12 and the second mating member 30 are at least partially offset from one another. In this way, when the propeller 11 is mounted, the matching between the first matching member 12 and the second matching member 30 can be used to determine whether the propeller 11 is matched with the mounting base 20 in the unlocked state without performing the locking operation.

It can be understood that, in such an embodiment, the number of the first mating members 12 may be multiple, the number of the retaining members 41 may also be multiple, one first mating member 12 is disposed between two adjacent retaining members 41, and the second mating member 30 is disposed on the mating portion 42, such that, when the first mating member 12 and the second mating member 30 are both magnetic and attract each other, the attraction force between the first mating member 12 and the second mating member 30 guides the user to rotate the propeller 11 to the predetermined position, so that the retaining members 41 can extend into the groove 422 to facilitate the locking operation of the user, in such a case, the first mating member 12 and the second mating member 30 have guiding and positioning functions, thereby improving the user experience.

Referring to fig. 4 and 7, in some embodiments, the multi-rotor propeller assembly 10 further includes an elastic member 50 disposed between the propeller 11 and the mounting base 20, the elastic member 50 being used for providing an elastic force to make the retaining member 41 retain in the engaging portion 42 to maintain the locking state.

Thus, the arrangement of the elastic member 50 can improve the locking stability of the retaining member 41 and the matching portion 42, the retaining member 41 can be firmly fixed in the matching portion 42 under the action of the elastic force, and if the retaining member 41 needs to be disengaged from the matching portion 42, the elastic force of the elastic member 50 must be overcome first, and the retaining member 41 is rotated out along the second direction. Specifically, the elastic member 50 in this embodiment may be an axial expansion spring, or another 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 provided with magnets, the first mating member 12 is used for generating 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, 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.

Thus, when the first mating member 12 and the second mating member 30 are magnets, 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, so that the phenomenon that the propeller 11 can rotate along the second direction due to the fact that the propeller 11 automatically overcomes the elastic force of the spring under the action of the attractive force due to the fact that the attractive force between the first mating member 12 and the second mating member 30 is too large can be avoided, and the propeller shooting phenomenon is caused, and the use safety of the propeller 11 is improved.

Referring to fig. 4 and 6, a multi-rotor propeller assembly 10 according to another embodiment of the present invention 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 fitting member 12 is mounted on the first mounting surface 1121 for fitting with the second fitting member 30 mounted on the mount 20, and indicates whether the propeller 11 is fitted to the mount 20 when the first fitting member 12 is close to and does not contact the second fitting member 30.

So, when installation screw 11, when being close to and not contacting mount pad 20 with screw 11, install first fitting piece 12 and second fitting piece 30 on first installation face 1121 can the mating reaction in order to indicate whether this screw 11 matches with this mount pad 20, like this, the user need not to install the lock to screw 11 and mount pad 20 and can learn whether this screw 11 matches with mount pad 20, has reduced installation time, improves user's installation and use and experiences.

Referring to fig. 10, fig. 10 shows an embodiment of a power system 100 according to the present invention, where the power system 100 includes a motor 60, a mounting base 20, a second fitting member 30, and any of the above-mentioned embodiments of the multi-prop assembly 10. The mount 20 is connected with the rotor of the motor 60, and the second fitting member 30 is mounted on the mount 20. The multi-rotor propeller assembly 10 is removably mounted to the mount 20 with the first mating member 12 for mating with the second mating member 30 to indicate whether the propeller 11 is mated to the mount 20 when the first mating member 12 is proximate to and does not contact the second mating member 30.

In the power system 100 of the embodiment of the utility model, the first fitting piece 12 is installed on the propeller 11, and the first fitting piece 12 is used for being matched with the second fitting piece 30 installed on the mounting seat 20 so as to indicate whether the propeller 11 is matched with the mounting seat 20 when the first fitting piece 12 is close to and does not contact the second fitting piece 30. So, when installation screw 11, when being close to and not contacting mount pad 20 with screw 11, first fitting piece 12 and second fitting piece 30 can the mating reaction 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 whether this screw 11 matches with mount pad 20, has reduced installation time, improves user's installation and use and experiences.

Specifically, in this embodiment, multi-rotor propeller assembly 10 is removably coupled to mount 20, mount 20 is coupled to the rotor of motor 60, and mount 20 and multi-rotor propeller assembly 10 are capable of being rotated by motor 60 to provide flight power.

Referring to fig. 4 and 7, in some embodiments, a limiting shaft 70 is further disposed in the middle of the mounting base 20, the limiting shaft 70 penetrates through the mounting base 20, a limiting concave portion is disposed on the propeller 11, and the limiting shaft 70 and the limiting concave portion cooperate to block the propeller 11 from swinging in the radial direction, so as to improve the stability of the rotation of the propeller 11.

Specifically, the stopper recess may be located at the middle of the mounting portion 112 of the propeller 11, and the axis of the stopper shaft 70 may coincide with the rotation axis of the motor 60. Therefore, the rotation axis of the motor 60 and the rotation axis of the propeller 11 can coincide with the axis of the limit shaft 70, so that the propeller 11 can be more stable when rotating, and the rotor of the motor 60 can drive the propeller 11 and the mounting base 20 to stably rotate. It is understood that in such an embodiment, the elastic element 50 may be sleeved on the limiting shaft 70, so that the limiting shaft 70 may serve to limit the elastic element 50 in the radial direction, prevent the elastic element 50 from deflecting in the radial direction, and enable the elastic element 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 fitting member 30 mounted on the first type of mount 20 is different from the type of second fitting member 30 mounted on the second type of mount 20.

In this way, when the mount 20 is a different type of mount 20, the different type of second fitting piece 30 can be installed for distinguishing, and the different type of second fitting piece 30 and the same first fitting piece 12 generate different prompting messages to prompt whether the propeller 11 is matched with the mount 20.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a drone 1000 according to an embodiment of the present invention, where the drone 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 according to the embodiment of the present invention, the first fitting member 12 is mounted on the propeller 11, and the first fitting member 12 is configured to be fitted with the second fitting member 30 mounted on the mount 20 to indicate whether the propeller 11 is fitted to the mount 20 when the first fitting member 12 is close to and does not contact the second fitting member 30. So, when installation screw 11, when being close to and not contacting mount pad 20 with screw 11, first fitting piece 12 and second fitting piece 30 can the mating reaction 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 whether this screw 11 matches with mount pad 20, has reduced installation time, improves user's installation and use and experiences.

It is understood that in the present invention, the power system 100 is used for providing power for the drone 1000, and the power system 100 includes at least two motors 60, two mounting seats 20, and two screw propellers 11, wherein at least one propeller 11 is a 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 first mating members 12 on the forward and reverse propellers are of different types, and the second mating members 30 on the mounting base 20 matching with the forward propeller are of different types from the second mating members 30 on the mounting base 20 matching with the reverse propeller. Therefore, when the propeller 11 is installed, the user can know whether the propeller 11 is matched with the mounting seat 20 in advance through the matching of the first matching piece 12 and the second matching piece 30, so that the installation time is saved, and the installation and use experience is improved.

In the description of the specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like 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 utility model. 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.

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

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.

Claims

1. A multi-rotor propeller assembly, comprising:

a propeller comprising blades;

a first mating member mounted on the propeller;

2. The multi-prop assembly of claim 1, wherein the first mating member comprises a sensor and the second mating member comprises a sensing element, the sensor configured to generate a sensing message with the sensing element when the sensing element is proximate to and not in contact with the sensor to indicate whether the propeller is mated with the mount.

3. The multi-prop assembly of claim 1, wherein the first engagement member and the second engagement member are both magnets, the first engagement member configured to generate a repelling or attracting force with the second engagement member when proximate to and not in contact with the second engagement member to indicate whether the propeller is mated with the mount.

4. The multi-prop rotor assembly according to claim 3, wherein the magnetic pole of the first mating member on a side thereof remote from the mounting surface of the first mating member is either N-pole or S-pole, and the magnetic pole of the second mating member on a side thereof remote from the mounting surface of the second mating member is either N-pole or S-pole.

5. The multi-rotor propeller assembly of claim 1, wherein the propeller is a first type of propeller or a second type of propeller;

the type of the first mating member mounted on the first type of paddle is different from the type of the first mating member mounted on the second type of paddle.

6. The multi-rotor propeller assembly of any one of claims 1-4, wherein the propeller includes a first paddle and a second paddle, the mount includes a first mount and a second mount, the first mating member is mounted on each of the first paddle and the second paddle, the second mating member is mounted on each of the first mount and the second mount, the first paddle mates with the first mount, and the second paddle mates with the second mount;

wherein the first mating member mounted on the first paddle is of a different type than the first mating member mounted on the second paddle;

the type of the second fitting piece mounted on the first mounting seat is different from that of the second fitting piece mounted on the second mounting seat.

7. The multi-rotor propeller assembly of claim 6, wherein the first propeller is a forward propeller of a drone and the second propeller is a reverse propeller of the drone.

8. The proprotor assembly according to claim 1, wherein the propeller includes a mounting portion on which the blade is fixedly or removably attached, the mounting portion for removable attachment to the mount, the first mating member being mounted on the mounting portion.

9. The multi-prop rotor assembly according to claim 8, wherein the mounting portion includes a first mounting surface facing the mounting receptacle, the first mating member being mounted on the first mounting surface;

the mounting base comprises a second mounting surface facing the propeller, and the second fitting piece is mounted on the second mounting surface and corresponds to the first fitting piece.

10. The multi-rotor propeller assembly of claim 9, wherein the first mounting surface has a first mounting slot formed thereon;

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

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

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.

11. The multi-rotor propeller assembly of claim 9, wherein the second mounting surface has a second mounting slot formed therein;

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

The second fitting piece is installed in the second installation groove and is completely received in the second installation groove; or

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.

12. The multi-prop-rotor assembly according to claim 9, wherein the first mounting surface and the second mounting surface are each circular;

the first fitting piece is sector-shaped, and the inner arc and the outer arc of the first fitting 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.

13. The multi-rotor propeller assembly of claim 1, wherein a first indicia is provided on the propeller and a second indicia is provided on the mount, the first indicia and the second indicia being used to characterize whether the propeller is mated to the mount.

14. The multi-rotor propeller assembly of claim 1, further comprising a locking mechanism for removably locking the propeller to the mount;

the locking mechanism includes:

the clamping piece is arranged on the propeller;

the matching part is arranged on the mounting seat, and after the propeller is in butt joint with the mounting seat to a preset position, the clamping piece can be turned into the matching part along a first direction to enter a locking state;

the retainer can be rotated out of the fitting portion in a second direction to enter an unlocked state, wherein the first direction is opposite to the second direction.

15. The multi-prop rotor assembly according to claim 14, wherein the first mating member and the retaining member are spaced apart along a circumferential direction of the propeller and are located on a same circumference as the retaining member, and the second mating member is mounted on the mating portion.

16. The multi-prop rotor assembly according to claim 15, wherein in the unlocked position the first engagement member and the second engagement member at least partially overlap one another, and in the locked position the first engagement member and the second engagement member are at least partially offset from one another.

17. The multi-rotor propeller assembly of claim 14, further comprising a resilient member disposed between the propeller and the mount, the resilient member being configured to provide a spring force to retain the retaining member in the engagement portion to maintain the locked state.

18. The multi-prop assembly of claim 17, wherein the first engagement member and the second engagement member each include a magnet, the first engagement member configured to generate a repelling or attracting force with the second engagement member when proximate to and not in contact with the second engagement member to indicate whether the propeller is mated with the mount, the attracting force being less than the spring force provided by the spring member.

19. A multi-rotor propeller assembly, comprising:

the propeller comprises a plurality of blades and a mounting part, wherein the blades 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 a mounting seat, and the mounting part is used for being detachably mounted on the mounting seat;

20. A power system, comprising:

a motor;

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

the second fitting piece is arranged on the mounting seat;

the multi-prop-rotor assembly of any one of claims 1-19, wherein the multi-prop-rotor assembly is removably mounted to the mount;

21. The power system of claim 20, wherein the mount is a first type of mount or a second type of mount;

the type of the second fitting element mounted on the first type of mount is different from the type of the second fitting element mounted on the second type of mount.

22. An unmanned aerial vehicle, comprising:

a body; and

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