CN213083472U

CN213083472U - Many rotor unmanned aerial vehicle frame and have its many rotor unmanned aerial vehicle

Info

Publication number: CN213083472U
Application number: CN202021036467.9U
Authority: CN
Inventors: 王浩; 单肖文
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology; Southern University of Science and Technology
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-04-30
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a multi-rotor unmanned aerial vehicle frame and multi-rotor unmanned aerial vehicle with the same, wherein the multi-rotor unmanned aerial vehicle frame comprises a frame main body and a propeller connecting arm; the oar linking arm is including three at least connecting rods of one end interconnect, and the other end of connecting rod all connects in the frame main part, forms a plurality of triangular structure between connecting rod and the frame main part, and wherein at least one triangular structure and all the other triangular structure are not on the coplanar. The utility model discloses a form a plurality of not coplanar's triangle structure between connecting rod and the frame main part, can lift the bearing capacity of oar linking arm in the direction from a plurality of differences with the help of the stable characteristics of triangle structure, satisfying under the same condition of twisting reverse and bending strength requirement, can be so that the oar linking arm can greatly reduced for traditional cantilever beam structure, weight to be favorable to reducing the weight of whole frame, and then improve unmanned aerial vehicle's continuation of the journey ability and load-carrying capacity.

Description

Many rotor unmanned aerial vehicle frame and have its many rotor unmanned aerial vehicle

Technical Field

The utility model relates to an unmanned aerial vehicle field, in particular to many rotor unmanned aerial vehicle frame and many rotor unmanned aerial vehicle that has it.

Background

With the rapid development of the unmanned aerial vehicle technology, the unmanned aerial vehicle has very wide application in the aspects of high-altitude shooting, remote detection, exploration, logistics transportation, frontier defense patrol and the like. Consequently, also higher and higher to unmanned aerial vehicle's mechanical structure's design requirement, current many rotor unmanned aerial vehicle adopts cantilever beam structure mode, and motor and screw are fixed in the one end of a pipe or square pipe promptly, and one end is fixed to the unmanned aerial vehicle organism in addition. In order to meet the requirements of torsional strength and bending strength, the cantilever beam needs to reach a sufficient size, so that the weight of the cantilever beam structure is greatly increased, and the cruising ability of the unmanned aerial vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a many rotor unmanned aerial vehicle frame can reduce many rotor unmanned aerial vehicle's structure weight, promotes many rotor unmanned aerial vehicle's duration.

The utility model discloses still provide a many rotor unmanned aerial vehicle of having above-mentioned many rotor unmanned aerial vehicle frame.

The multi-rotor unmanned aerial vehicle frame according to the embodiment of the first aspect of the utility model comprises a frame main body and a paddle connecting arm; the oar linking arm is including three at least connecting rods of one end interconnect, the other end of connecting rod is all connected in the frame main part, the connecting rod with form a plurality of triangular structure between the frame main part, wherein have at least one triangular structure and all the other triangular structure not on the coplanar.

According to the utility model discloses many rotor unmanned aerial vehicle frame of first aspect embodiment has following beneficial effect at least: through three piece at least connecting rod one end interconnect, the other end is connected to in the frame main part, and make and form a plurality of not coplanar's triangle structure between connecting rod and the frame main part, can be with the help of the stability characteristics of triangle structure, from the bearing capacity of the oar linking arm that improves in the direction of a plurality of differences, satisfying under the same condition of twisting reverse and bending strength requirement, can make the oar linking arm for traditional cantilever beam structure, weight can greatly reduced, thereby be favorable to reducing the weight of whole frame, and then improve unmanned aerial vehicle's duration and load-carrying capacity.

According to some embodiments of the present invention, the frame body is configured as a cylindrical frame structure, and comprises an upper frame, a bottom frame and a vertical rod, wherein the upper frame and the bottom frame are both configured as regular polygon structures, the upper frame and the bottom frame are connected to each other through the vertical rod, and two ends of the vertical rod are respectively connected to two opposite vertexes of the upper frame and the bottom frame; the other end of the connecting rod is connected to a vertex of the upper frame or the bottom frame.

According to some embodiments of the invention, the paddle connecting arm comprises three connecting rods, and two of them the other end of the connecting rods is connected respectively the upper frame with two vertexes that the bottom frame is relative, another the other end of the connecting rods is connected on another vertex that the upper frame is adjacent.

According to some embodiments of the utility model, two of them of oar linking arm the connecting rod with constitute anti-bending triangular structure between the pole setting.

According to some embodiments of the invention, two of the connecting rods of the paddle connecting arm are on the same plane as the upper frame, and constitute an anti-torsion triangle structure with the upper frame.

According to some embodiments of the present invention, the upper frame is provided with a support frame for connecting the active control module and the navigation module.

According to some embodiments of the utility model, the support frame is including a plurality of bracing pieces, the both ends of bracing piece are connected respectively two summits that the upper portion frame is relative.

According to the utility model discloses a some embodiments, adjacent two be provided with oblique pull rod between the pole setting, the both ends of oblique pull rod are connected respectively two summits of upper portion frame and bottom frame.

According to some embodiments of the invention, the bottom frame is provided with a carrier plate for supporting the battery module.

According to the utility model discloses a many rotor unmanned aerial vehicle of second aspect embodiment, including the first aspect embodiment many rotor unmanned aerial vehicle frame and motor screw, the motor screw sets up the connecting rod is kept away from the one end of frame main part.

According to the utility model discloses many rotor unmanned aerial vehicle of first aspect embodiment has following beneficial effect at least: form the oar linking arm through three at least connecting rods, keep away from the one side of frame main part with the motor screw setting at the oar linking arm, and with the help of the triangle structure that is in different planes that forms between connecting rod and the frame main part, can be with the help of the stability characteristics of triangle structure, lift the bearing capacity of oar linking arm from the orientation of a plurality of differences, make the oar linking arm for traditional cantilever beam structure, satisfy under the same condition of twisting reverse and bending strength requirement, weight can greatly reduced, thereby be favorable to reducing the weight of whole frame, and then improve unmanned aerial vehicle's duration and load-carrying capacity.

Additional aspects and advantages of the invention 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 the invention.

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 structural view of a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a schematic view of the multi-rotor drone of fig. 1 from another perspective with the batteries removed;

fig. 3 is a schematic side view of the multi-rotor drone of fig. 1 with the battery removed;

fig. 4 is a schematic top view of the multi-rotor drone of fig. 1 with the batteries removed;

fig. 5 is a schematic structural view of the connection in the airframe of the multi-rotor drone of fig. 1;

fig. 6 is a schematic structural view of a carrier plate in the multi-rotor drone airframe of fig. 1.

Reference numerals: the device comprises a rack main body 10, a paddle connecting arm 20, a support frame 30, a bearing plate 40, a motor propeller 50, an active control and navigation module 60, a battery module 70, a connecting piece 80, an anti-bending triangular structure 90a and an anti-torsion triangular structure 90 b;

the upper frame 110, the bottom frame 120, the upright 130, the diagonal draw bar 140, the connecting rod 210, the connecting hole 410, the socket 810, the connecting part 820, and the connecting column 821.

Detailed Description

Reference will now be made in detail to the 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 functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless explicitly defined otherwise, the words such as setting, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention by combining the specific contents of the technical solutions.

A multi-rotor drone frame according to an embodiment of the invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the multi-rotor drone frame according to an embodiment of the first aspect of the present invention comprises a frame body 10 and a paddle connecting arm 20; the oar linking arm 20 is including three at least connecting rods 210 of one end interconnect, the other end of connecting rod 210 all connects in on the frame main part 10, connecting rod 210 with form a plurality of triangle structures between the frame main part 10, wherein have at least one triangle structure and all the other triangle structures not on the coplanar.

Through three piece at least connecting rod 210 one end interconnect, the other end is connected to on the frame main part 10, and make and form a plurality of not coplanar's triangle structure between connecting rod 210 and the frame main part 10, can be with the help of the stability characteristics of triangle structure, from the bearing capacity of lifting oar linking arm 20 in the direction of a plurality of differences, under the condition that satisfies the same torsion and bending strength requirement, can make oar linking arm 20 for traditional cantilever beam structure, weight can greatly reduced, thereby be favorable to reducing the weight of whole frame, and then improve unmanned aerial vehicle's duration and load-carrying capacity.

According to some embodiments of the present invention, referring to fig. 2, the rack main body 10 is configured as a cylindrical frame structure, and includes an upper frame 110, a bottom frame 120 and an upright rod 130, the upper frame 110 and the bottom frame 120 are both configured as regular polygon structures, the upper frame 110 and the bottom frame 120 are connected to each other through the upright rod 130, and two ends of the upright rod 130 are respectively connected to two opposite vertexes of the upper frame 110 and the bottom frame 120; the other end of the connection rod 210 is connected to the vertex of the upper frame 110 or the lower frame 120. By arranging the frame main body 10 into the cylindrical frame structure, the weight of the frame main body 10 can be effectively reduced, so that the weight of the whole frame is further reduced, and the load and the cruising ability of the unmanned aerial vehicle are improved; and it is also convenient to attach the connection bar 210 to the housing main body 10 to form a triangular structure by providing the housing main body 10 in the above-described cylindrical frame structure.

Referring to fig. 2, in some embodiments, the upper frame 110 and the lower frame 120 are each configured in a regular quadrilateral shape, and the entire rack body 10 has a frame structure of a square column shape; specifically, the upper frame 110 and the bottom frame 120 are formed by connecting rod pieces end to end in sequence; of course, in other embodiments, the upper frame 110 and the bottom frame 120 may be arranged in other regular polygonal structures such as regular pentagons, regular hexagons, and so on.

Referring to fig. 2, according to some embodiments of the present invention, the paddle connecting arm 20 includes three connecting rods 210, and the other ends of two connecting rods 210 are respectively connected to two opposite vertexes of the upper frame 110 and the bottom frame 120, and the other end of another connecting rod 210 is connected to another vertex adjacent to the upper frame 110. Too many connecting rods 210 in the oar connecting arm 20 will increase the weight of the oar connecting arm 20, and the three connecting rods 210 are connected to the frame main body 10 in the above manner, so that the weight of the oar connecting arm 20 can be prevented from being increased, and the triangular sides of a plurality of triangular structures can be formed by the vertical rod 130 and the sides of the upper frame 110.

And with reference to figure 3, in particular, during flight of the drone, the paddle link arm 20 will mainly be subjected to a torque around the Z axis (vertical axis) and a bending moment around the X or Y axis (horizontal axis); in the same connecting arm 20, the two connecting rods 210 respectively connected to the two opposite vertexes of the upper frame 110 and the bottom frame 120, and the triangular structure formed by the vertical rod 130, are in the vertical plane and parallel to the Z axis, which is beneficial to improving the bending moment bearing capacity of the connecting arm 20, thereby forming the bending-resistant triangular structure 90 a. Referring to fig. 4, in the same paddle connecting arm 20, two connecting rods 210 connecting the vertex of the upper frame 110 are in the same plane with the upper frame 110, and the triangular structure formed by the two connecting rods and the upper frame 110 is perpendicular to the Z axis, which is beneficial to improving the torque bearing capacity of the paddle connecting arm 20, so as to form a torsion-resistant triangular structure 90 b.

Referring to fig. 2, according to some embodiments of the present invention, the upper frame 110 is provided with a support frame 30 for connecting the active control and navigation module 60, thereby facilitating installation of the active control and navigation module 60 on the rack main body 10.

Referring to fig. 2, according to some embodiments of the present invention, the supporting frame 30 includes a plurality of supporting rods, and two ends of the supporting rods are respectively connected to two opposite vertexes of the upper frame 110; the active control and navigation module 60 is connected to the position where the support bars intersect; because the support rods connect the two opposite vertices of the upper frame 110, the support rods not only have the function of supporting and connecting the active control and navigation module 60, but also can play a role in strengthening the structure of the upper frame 110, thereby improving the rigidity of the upper frame 110.

Referring to fig. 2, according to some embodiments of the present invention, a diagonal member 140 is disposed between two adjacent vertical rods 130, two ends of the diagonal member 140 are respectively connected to two vertexes of the upper frame 110 and the bottom frame 120, so as to improve the connection rigidity between the upper frame 110 and the bottom frame 120, and avoid the problem that the upper frame 110 is twisted and dislocated with the bottom frame 120 under the action of torsion; in addition, since the battery module 70 is placed in the cylindrical frame of the rack body 10 and the diagonal draw bar 140 is provided, the battery module 70 can be effectively prevented from being separated from the side surface of the rack body 10.

Referring to fig. 2, 5 and 6, according to some embodiments of the present invention, a bearing plate 40 is disposed on the bottom frame 120, the battery module 70 of the unmanned aerial vehicle can be disposed inside the cylindrical frame of the frame body 10, and the bearing plate 40 is used for supporting and bearing the battery module 70. And specifically, both ends of the loading plate 40 point to two opposite vertexes of the bottom frame 120, two adjacent edges of the two vertexes are connected with the connecting members 80, and both ends of the loading plate 40 are connected to the connecting members 80. Specifically, the connecting member 80 includes a sleeve part 810 and a connecting part 820, the sleeve part 810 is set to be cylindrical and sleeved on a rod member constituting the side of the bottom frame 120, the connecting part 820 is provided with a connecting column 821, and the bearing plate 40 is provided with a connecting hole 410, so that the bearing plate 40 is connected on the bottom frame 120 through the matching of the connecting column 821 and the connecting hole 410.

According to some embodiments of the utility model, frame main part 10 and oar linking arm 20 all adopt lightweight material to make, make like lightweight carbon fiber tube material etc. to further lighten the weight of whole frame.

According to the utility model discloses a many rotor unmanned aerial vehicle of second aspect embodiment, including the first aspect embodiment many rotor unmanned aerial vehicle frame and motor screw 50, motor screw 50 sets up the one end that frame main part 10 was kept away from to connecting rod 210.

The multi-rotor unmanned aerial vehicle further comprises an active control and navigation module 60, wherein the active control and navigation module 60 is connected to the top of the frame main body 10, and specifically, is connected to the middle of the support frame 30; many rotor unmanned aerial vehicle is still including battery module 70, and battery module 70 sets up inside the cylindrical frame of frame main part 10, and supports through loading board 40 and bear. The battery module 70, the motor propeller 50, and the active control and navigation module 60 are electrically interconnected.

A multi-rotor drone airframe according to a first aspect and a multi-rotor drone according to a second aspect of an embodiment of the present invention are described in detail below with a specific embodiment with reference to fig. 1 to 6. It is to be understood that the following description is exemplary only, and is not a specific limitation of the invention.

The multi-rotor unmanned aerial vehicle comprises a multi-rotor unmanned aerial vehicle frame, a battery module 70, a motor propeller 50 and an active control and navigation module 60; wherein many rotor unmanned aerial vehicle frame is including having frame main part 10 and oar linking arm 20. Wherein the frame main body 10 and the paddle connecting arm 20 are made of light-weight carbon fiber tube materials.

The rack body 10 is configured as a cylindrical frame structure, and includes an upper frame 110, a bottom frame 120 and an upright rod 130, the upper frame 110 and the bottom frame 120 are both configured as a square structure, the upper frame 110 and the bottom frame 120 are connected to each other through the upright rod 130, and two ends of the upright rod 130 are respectively connected to two opposite vertexes of the upper frame 110 and the bottom frame 120.

The paddle connecting arm 20 includes three connecting rods 210 having one end connected to each other, and two of the connecting rods 210 have the other ends connected to two opposite vertexes of the upper frame 110 and the bottom frame 120, respectively, and the other end of the other connecting rod 210 is connected to another vertex adjacent to the upper frame 110. Moreover, the paddle connecting arms 20 are provided with 4 paddles and are uniformly distributed around the frame body 10.

Two connecting rods 210 respectively connecting two opposite vertexes of the upper frame 110 and the bottom frame 120 in the same paddle connecting arm 20, and an anti-bending triangular structure 90a formed by the upright 130; in the same paddle connecting arm 20, the two connecting rods 210 connecting the apexes of the upper frame 110 are in the same plane as the upper frame 110, and form an anti-torsion triangle structure 90b with the upper frame 110.

A diagonal draw bar 140 is arranged between two adjacent vertical rods 130, and two ends of the diagonal draw bar 140 are respectively connected with two vertexes of the upper frame 110 and the bottom frame 120, so as to improve the connection rigidity between the upper frame 110 and the bottom frame 120.

The upper frame 110 is provided with a support frame 30 for connecting the active control and navigation module 60, the support frame 30 comprises a plurality of support rods, and two ends of each support rod are respectively connected with two opposite vertexes of the upper frame 110; the active control and navigation module 60 is connected to the middle of the support rod at the intersection.

The bottom frame 120 is provided with a bearing plate 40, the battery module 70 of the unmanned aerial vehicle can be arranged inside the cylindrical frame of the frame body 10, and the bearing plate 40 is used for supporting and bearing the battery module 70. Two ends of the bearing plate 40 point to two opposite vertexes of the bottom frame 120, two adjacent edges of the two vertexes are connected with the connecting piece 80, and two ends of the bearing plate 40 are connected to the connecting piece 80. The connector 80 includes a sleeve joint part 810 and a connection part 820, the sleeve joint part 810 is set to be cylindrical and sleeved on a rod member constituting the side of the bottom frame 120, the connection part 820 is provided with a connection column 821, and the bearing plate 40 is provided with a connection hole 410, so that the bearing plate 40 is connected on the bottom frame 120 through the matching of the connection column 821 and the connection hole 410. The battery module 70 is mounted inside the cylindrical frame structure of the rack body 10 with the loading plate 40 under the batteries for loading the batteries.

According to the utility model discloses many rotor unmanned aerial vehicle frame and many rotor unmanned aerial vehicle, through so setting up, can reach some technological effects as follows at least:

form oar linking arm 20 through three piece at least connecting rods 210, set up motor propeller 50 in one side that frame main part 10 was kept away from to oar linking arm 20, and with the help of the triangle structure that is in different planes that forms between connecting rod 210 and the frame main part 10, can be with the help of the stability characteristics of triangle structure, from the bearing capacity of the oar linking arm 20 that promotes in the direction of a plurality of differences, make oar linking arm 20 for traditional cantilever beam structure, under the condition that satisfies the same torsion and bending strength requirement, weight can greatly reduced, thereby be favorable to reducing the weight of whole frame, and then improve unmanned aerial vehicle's duration and load-carrying capacity.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. Many rotor unmanned aerial vehicle frame, its characterized in that includes:

a frame main body (10);

oar linking arm (20), oar linking arm (20) are including three piece at least connecting rods (210) of one end interconnect, the other end of connecting rod (210) is all connected on frame main part (10), connecting rod (210) with form a plurality of triangular structure between frame main part (10), wherein have at least one triangular structure and all the other triangular structure not on the coplanar.

2. The multi-rotor unmanned aerial vehicle frame of claim 1, wherein the frame body (10) is configured as a cylindrical frame structure and comprises an upper frame (110), a bottom frame (120) and a vertical rod (130), the upper frame (110) and the bottom frame (120) are configured as regular polygons, the upper frame (110) and the bottom frame (120) are connected to each other through the vertical rod (130), and two ends of the vertical rod (130) are respectively connected to two opposite vertexes of the upper frame (110) and the bottom frame (120); the other end of the connection rod (210) is connected to a vertex of the upper frame (110) or the bottom frame (120).

3. A multi-rotor drone airframe according to claim 2, characterised in that the paddle connecting arm (20) comprises three connecting rods (210), and wherein the other ends of two of the connecting rods (210) are connected to two opposite vertices of the upper frame (110) and the bottom frame (120), respectively, and the other end of the other connecting rod (210) is connected to another vertex adjacent to the upper frame (110).

4. The multi-rotor drone airframe according to claim 3, characterized in that two of the connecting rods (210) of the paddle connecting arms and the upright (130) form a bending-resistant triangle (90 a).

5. A multi-rotor drone airframe according to claim 3, characterized in that two of the connecting rods (210) of the paddle connecting arms are coplanar with the upper frame (110) and constitute an anti-torque triangle (90b) with the upper frame (110).

6. A multi-rotor drone airframe according to any one of claims 2 to 5, characterised in that the upper frame (110) is provided with a support frame (30) for connecting an active control and navigation module (60).

7. A multi-rotor unmanned aerial vehicle airframe as claimed in claim 6, wherein the support frame (30) includes a plurality of support rods, the support rods having opposite ends connected to opposite vertices of the upper frame (110).

8. A multi-rotor unmanned aerial vehicle airframe according to any one of claims 2 to 5, wherein a diagonal draw bar (140) is provided between two adjacent vertical bars (130), and two ends of the diagonal draw bar (140) are respectively connected to two vertexes of the upper frame (110) and the bottom frame (120).

9. A multi-rotor drone airframe according to any one of claims 2 to 5, characterised in that the bottom frame (120) is provided with a carrier plate (40) for supporting battery modules (70).

10. Multi-rotor drone, comprising a multi-rotor drone bay according to any one of claims 1 to 9 and a motor propeller (50), the motor propeller (50) being arranged at the end of the connecting rod (210) remote from the bay body (10).