Unmanned aerial vehicle frame and unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle frame which comprises a bottom plate, damping blocks, vehicle arms, a top plate and connecting pieces. First mounting holes are formed in four corners of the bottom plate; the damping block is arranged at the first mounting hole, and a second mounting hole corresponding to the first mounting hole is formed in the damping block; the vehicle arms are symmetrically distributed at four corners of the bottom plate, and third mounting holes corresponding to the first mounting holes are formed in the vehicle arms; the top plate is arranged on the vehicle arm, and fourth mounting holes are formed in the four corners of the top plate. The connecting piece penetrates through the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole and is used for fixing the top plate, the vehicle arms and the damping blocks to the bottom plate. According to the embodiment of the utility model, the damping block is arranged to provide additional anti-seismic protection for the unmanned aerial vehicle frame, when the unmanned aerial vehicle encounters vibration and impact during flying or landing, the damping block can effectively absorb and buffer the impact force, and the impact force is gradually diffused to the larger surface area of the bottom plate from the connecting part, so that the local stress concentration is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to an unmanned plane frame and unmanned plane. BACKGROUND

[0002] In recent years, the unmanned plane technology has obtained the rapid development, is widely used in logistics transportation, agricultural monitoring, search and rescue, entertainment shooting etc. many fields. The unmanned plane frame as one of core structures, bears the key task of supporting various equipment and providing flight stability. The existing unmanned plane frame usually adopts aluminum alloy, carbon fiber and high strength plastic etc. material, these materials with its lightweight, high strength and durability have been widely used. However, the existing frame design cannot be considered in the flexibility of equipment installation, multi -task adaptability and strength etc.

[0003] The unmanned plane frame on the market is mostly closed or semi -closed structure, although these designs improve the overall rigidity and wind resistance, but also limit the flexible installation of different task equipment, cannot effectively satisfy the demand of unmanned plane in diversification task. This design makes the frame difficult to adapt when facing different task scene, especially when task conversion appears equipment interface shortage, leading to equipment installation inconvenience. In addition, the heat dissipation performance of closed structure is poor, especially when executing high load task or long time flight, the on -board equipment is easy to overheat because of poor heat dissipation, influence flight stability and task execution effect.

[0004] Therefore, on the basis of guaranteeing the flexibility and heat dissipation of unmanned plane frame, in order to improve the adaptability of unmanned plane in multi -task environment, it is urgent to design a good unmanned plane frame of crashworthiness, to improve its adaptability in multi -task environment, to guarantee the stable performance of unmanned plane in complex task. SUMMARY

[0005] The utility model provides a kind of unmanned plane frame with higher impact toughness and corresponding unmanned plane design, to solve the problem that existing unmanned plane frame cannot fully meet the flexible use demand of multi -task equipment due to insufficient impact toughness.

[0006] To solve the above technical problems, the utility model provides a kind of unmanned plane frame, comprising:

[0007] The bottom plate is provided with a first mounting hole at four corners;

[0008] The damping block is arranged at the first mounting hole, and the second mounting hole corresponding to the first mounting hole is arranged on the damping block;

[0009] The arm is symmetrically distributed at the four corners of the bottom plate, and the third mounting hole corresponding to the first mounting hole is arranged on the arm;

[0010] a top plate arranged on the arm, and four corners of the top plate are provided with fourth mounting holes;

[0011] connecting pieces passing through the first, second, third and fourth mounting holes for fixing the top plate, the arm and the damping blocks on the bottom plate.

[0012] Further, the damping block comprises a ring-shaped boss and an elastic protrusion extending from the sidewall of the ring-shaped boss to the middle part of the bottom plate, and the second mounting hole is arranged on the ring-shaped boss.

[0013] Further, the first, third and fourth mounting holes each comprise two through holes, two damping blocks are arranged at each first mounting hole, and the included angle of the two elastic protrusions at each first mounting hole ranges from 60° to 90°.

[0014] Further, the elastic protrusion is a semi-circular cone, and the end of the elastic protrusion away from the ring-shaped boss is a pointed cone part.

[0015] Further, the arm comprises a main arm, a branch arm and a reinforcing rod, the branch arm is arranged on the side of the main arm close to the bottom plate, the main arm is provided with a placing hole along the length direction, the reinforcing rod is arranged in the placing hole, the length of the main arm is H, the length of the reinforcing rod is h, and the length of the reinforcing rod ranges from 0.75H to H.

[0016] Further, the placing hole is a circular cone, the minimum aperture of the placing hole is located on the side close to the free end of the main arm, and the reinforcing rod is a circular cone carbon fiber rod.

[0017] Further, the main arm is further provided with a plurality of uniformly arranged lightening holes along the length direction, and the aperture of the lightening hole along the width direction of the main arm is greater than the maximum aperture of the placing hole.

[0018] Further, the included angle between each arm ranges from 90°, and the included angle between the main arm and the branch arm ranges from 51° to 70°.

[0019] Further, one end of the top plate is provided with a holder placing plate, the holder placing plate is provided with a holder interface passing therethrough, and the two top corners of the holder placing plate away from the top plate are provided with arc surfaces.

[0020] In another aspect, the utility model also provides a kind of unmanned aerial vehicle, including the unmanned aerial vehicle frame of the unmanned aerial vehicle.

[0021] Compared with the prior art, the unmanned aerial vehicle frame and the unmanned aerial vehicle of the embodiment of the utility model have the beneficial effects that:

[0022] The utility model embodiment provides additional anti shock protection through setting shock attenuation block on unmanned aerial vehicle frame, when unmanned aerial vehicle meets vibration and impact in flight or landing process, shock attenuation block can effectively absorb and buffer impact force, simultaneously, impact force is gradually diffused from connecting point to larger surface area of bottom plate, thereby reducing local stress concentration. This design significantly enhances impact toughness of unmanned aerial vehicle frame, improves its impact resistance and stability, helps protection electronic equipment and precision instrument inside unmanned aerial vehicle, prolongs its service life. In addition, this improvement is applicable to unmanned aerial vehicle needing to frequently replace equipment and execute multitask, not only improves overall safety, but also enhances its applicability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of one visual angle of unmanned aerial vehicle frame provided by the utility model embodiment;

[0024] Figure 2 It is the structure schematic diagram of another visual angle of unmanned aerial vehicle frame provided by the utility model embodiment;

[0025] Figure 3 It is the structure schematic diagram of still another visual angle of unmanned aerial vehicle frame provided by the utility model embodiment;

[0026] Figure 4 It is the structure schematic diagram of bottom plate in unmanned aerial vehicle frame provided by the utility model embodiment;

[0027] Figure 5 It is the structure schematic diagram of connecting piece in unmanned aerial vehicle frame provided by the utility model embodiment;

[0028] Figure 6 It is the structure schematic diagram of arm in unmanned aerial vehicle frame provided by the utility model embodiment;

[0029] Figure 7 It is the cross section view of arm in unmanned aerial vehicle frame provided by the utility model embodiment;

[0030] Figure 8 It is the structure schematic diagram of reinforcing rod in unmanned aerial vehicle frame provided by the utility model embodiment.

[0031] In the drawing, 10, bottom plate;11, first mounting hole;20, shock attenuation block;21, annular boss;22, elastic protrusion;23, second mounting hole;30, arm;31, main arm;32, branch arm;33, reinforcing rod;34, third mounting hole;35, placing hole;36, weight reduction hole;40, top plate;41, fourth mounting hole;42, holder placing plate;43, holder interface;50, connecting piece. DETAILED DESCRIPTION

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] In the description of this utility model, it should be noted that the directional terms such as "middle", "upper", "lower", "inner", and "outer" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figures 1-5 As shown, this utility model embodiment provides a drone frame, including a base plate 10, a shock-absorbing block 20, an arm 30, a top plate 40, and a connector 50.

[0037] The base plate 10 has first mounting holes 11 at its four corners;

[0038] The shock absorber 20 is provided at the first mounting hole 11, and the shock absorber 20 is provided with a second mounting hole 23 corresponding to the first mounting hole 11;

[0039] The arms 30 are symmetrically distributed at the four corners of the base plate 10, and the arms 30 are provided with the third mounting hole 34 corresponding to the first mounting hole 11;

[0040] The top plate 40 is mounted on the arm 30, and the top plate 40 has a fourth mounting hole 41 at each of its four corners;

[0041] The connecting piece 50 passes through the first mounting hole 11, the second mounting hole 23, the third mounting hole 34 and the fourth mounting hole 41, and is used for fixing the top plate 40, the arm 30 and the shock-absorbing block 20 on the bottom plate 10.

[0042] The utility model discloses an embodiment provides additional anti-vibration protection for the unmanned aerial vehicle frame, when the unmanned aerial vehicle encounters vibration and impact during flight or landing, the shock-absorbing block 20 can effectively absorb and buffer the impact force, and the impact force is diffused from the connection to the larger surface area of the bottom plate 10, reducing the local stress concentration, so that the unmanned aerial vehicle frame has better impact toughness, significantly improves the impact resistance and stability, helps to protect the electronic equipment and precision instruments of the unmanned aerial vehicle, prolongs the service life, is suitable for the unmanned aerial vehicle that needs to frequently switch equipment and perform multiple tasks, and improves the overall safety and applicability.

[0043] The unmanned aerial vehicle frame can ensure that the frame structure has sufficient strength and stability while being light in weight, and the top plate 40, the bottom plate 10 and the arm 30 are made of PETG material (polyethylene terephthalate glycol), which is a thermoplastic material widely used in 3D printing and engineering manufacturing fields. The excellent mechanical properties of PETG material make it an ideal material for structural parts such as unmanned aerial vehicle frames, and PETG material has excellent performance in strength and toughness, and has high resistance to chemical corrosion and ultraviolet rays, and is suitable for use in complex environments such as outdoors. The structural parts of the unmanned aerial vehicle frame exposed to sunlight can use PETG to prolong the service life. Therefore, the unmanned aerial vehicle frame made of PETG material can improve the strength and durability while ensuring light weight, and is especially suitable for high-performance and high-durability unmanned aerial vehicle application scenarios.

[0044] The arms 30 are symmetrically arranged at the four corners of the bottom plate 10 and the top plate 40, which can ensure the balance of the center of gravity of the unmanned aerial vehicle, reduce the vibration of the unmanned aerial vehicle during operation, and make the load more evenly distributed on the entire frame, thereby reducing the stress burden of each arm 30, providing stable flight support, and facilitating the installation of other necessary equipment and parts on the frame for easy maintenance. In addition, sufficient mounting space is provided between the bottom plate 10 and the top plate 40 to accommodate the battery, sensors, circuit boards and other electronic components of the unmanned aerial vehicle. This layout ensures that the components are reasonably distributed while reducing space waste, which helps to control the center of gravity of the unmanned aerial vehicle and improve the overall stability. It should be noted that the connecting piece 50 can be connected and fixed by using a bolted connection pair to facilitate disassembly and assembly of the unmanned aerial vehicle frame. The shock-absorbing block 20 is located on the side of the bottom plate 10 away from the arm 30, and the shock-absorbing block 20 and the bottom plate 10 can be integrally formed, connected by screws or welded to ensure that the shock-absorbing block 20 and the bottom plate 10 are tightly combined.

[0045] As Figure 4 shown in an optional embodiment of the utility model, the shock-absorbing block 20 includes an annular boss 21 and an elastic protrusion 22 extending from the sidewall of the annular boss 21 to the middle part of the bottom plate 10, and a second mounting hole 23 is arranged on the annular boss 21.

[0046] Specifically, by cooperating the annular boss 21 and the elastic protrusion 22 extending from the sidewall of the annular boss 21 to the middle part of the bottom plate 10, when the connecting piece 50 fixes the top plate 40, the arm 30 and the shock-absorbing block 20 on the bottom plate 10, the sidewall of the connecting piece 50 will directly contact the second mounting hole 23, and when the unmanned aerial vehicle encounters vibration and impact during flight or landing, the connecting piece 50 can transmit the vibration and impact force to the inner wall of the second mounting hole 23, and the annular boss 21 and the elastic protrusion 22 can absorb part of the energy, play a buffering role, and the stress gradually transitions from the connection between the elastic protrusion 22 and the annular boss 21 to the other direction of the elastic protrusion 22 and is dispersed to the middle part of the bottom plate 10, thereby reducing the direct impact of flight vibration or impact on the bottom plate 10 and the top plate 40, dispersing the stress concentration phenomenon of the bottom plate 10 structure, avoiding loosening of the connecting piece 50 caused by vibration, and improving the firmness of the connecting structure of the bottom plate 10, the arm 30 and the top plate 40.

[0047] As Figures 4-6 shown in an optional embodiment of the utility model, the first mounting hole 11, the third mounting hole 34 and the fourth mounting hole 41 each include two through holes, two shock-absorbing blocks 20 are arranged at each first mounting hole 11, and the included angle range of the two elastic protrusions 22 at each first mounting hole 11 is 60°-90°.

[0048] Specifically, the two through holes of the first mounting hole 11, the third mounting hole 34 and the fourth mounting hole 41, together with the two second mounting holes 23, constitute two channels, and the two connecting pieces 50 respectively pass through the two channels, thereby fixing the damping block 20, the arm 30 and the top plate 40 on the bottom plate 10, and through the two fixing points, the connection stability between the arm 30 and the top plate 40 and the bottom plate 10 is enhanced, the displacement and rotation risk of the main arm 31 under the action of the load is reduced, the stress distribution of the arm 30 is more uniform, the local stress concentration is reduced, and the service life of the arm 30 is prolonged. The third mounting hole 34 provided on each arm 30 corresponds to the first mounting hole 11 on the bottom plate 10, the second mounting hole 23 on the damping block 20 and the fourth mounting hole 41 on the top plate 40 one by one, and the alignment design ensures the stable connection between the components of each layer, reduces the installation deviation, and makes the structure more compact and firm. The corresponding mounting hole design makes the elastic damping block 20 can more effectively play the buffering effect, the elastic protrusion 22 absorbs vibration and reduces the impact on the whole structure, so as to further improve the damping effect of the equipment and prolong the service life of the parts. In order to ensure the coordinated stress between the elastic protrusions 22, so as to better absorb the vibration and impact from different directions, the distribution structure of the two elastic damping blocks 20 is arranged at the positions corresponding to the arms 30 at the four corners of the bottom plate 10, which can balance the vibration force and improve the overall damping effect. The included angle of the two elastic protrusions 22 at each first mounting hole 11 is 60°-90°, so that the elastic protrusion 22 can respond flexibly when impacted, and the included angle can effectively support and buffer the weight of the equipment, reduce shaking and vibration, reduce friction noise, and improve overall stability.

[0049] As Figure 4 shown in an optional embodiment of the utility model, the elastic protrusion 22 is a semi-conical body, and the end of the elastic protrusion 22 away from the annular boss 21 is a pointed cone part.

[0050] Specifically, by setting the elastic protrusion 22 as a semi-circular cone, and the tip of the elastic protrusion 22 away from the annular boss 21 as a pointed cone, the surface of the elastic protrusion 22 is relatively inclined and distributed in an arc surface structure, which can gradually disperse and absorb the impact force brought by the connecting piece 50, and the stress can gradually transition from the annular boss 21 to the direction of the pointed end, avoiding stress concentration, thereby reducing the fatigue damage of the local area of the elastic material, so that the elastic protrusion 22 has a better buffering effect when bearing pressure. Through this structural design, the elastic protrusion 22 can more flexibly and stably adapt to external load changes, while improving the shock absorption effect and enhancing the overall performance and service life of the equipment. In addition, to further improve the protection effect of the top plate 40, an annular boss 21 can be additionally arranged at the corresponding position of the fourth mounting hole 41 of the top plate 40, and a through hole corresponding to the fourth mounting hole is formed in the annular boss 21, so that the outer wall of the connecting piece 50 at the other end can be in contact with the through hole. This design not only hides part of the structure of the connecting piece 50, such as when a bolt and nut are used as the connecting piece 50 for connection, it can effectively avoid the exposure of the nut or bolt head end to the external environment, reducing the probability of rust damage, but also provides the unmanned aerial vehicle with certain anti-vibration and anti-impact capability, thereby effectively absorbing and relieving external impact force.

[0051] It should be noted that the structure of the semi-circular cone gradually tapers from the starting end of the annular boss 21 to the end of the pointed cone in an arc shape, and the arc surface has a natural hierarchical buffering characteristic. The stress can be transmitted along the arc surface layer by layer and gradually spread to a wider bottom area, and the curvature change of the arc surface can form a natural stress dispersion path. When the shock-absorbing block 20 is subjected to an impact force, the force will not be concentrated on a certain point of the elastic protrusion 22, but will gradually spread along the arc surface of the elastic protrusion 22. When the stress gradually transmits to the tip, it flows along the curved surface, so that the stress gradually decreases, rather than directly impacting the bottom plate 10. In this way, the transmission path of the force gradually shrinks towards the tip, making the stress distribution more uniform. Compared with other shapes, the arc surface of the semi-circular cone elastic protrusion 22 makes the force transmission more smooth and gentle due to its decreasing contact area. In addition, since the arc structure has good adaptability to force, the force applied at the bottom end can be gradually attenuated through the arc structure, and the deformation of the elastic material will be more regularly distributed along the arc surface, reducing the instantaneous peak value of the impact. The arc surface of the semi-circular cone can deform flexibly under external force and gradually recover. Therefore, the arc surface of the semi-circular cone helps to gradually disperse the stress downward, reduces stress concentration, provides a flexible deformation space, and thus achieves better impact absorption and shock absorption effect.

[0052] As Figures 6-8As shown in the optional embodiment of the utility model, the arm 30 comprises a main arm 31, a branch arm 32 and a reinforcing rod 33, the branch arm 32 is arranged on the side of the main arm 31 close to the bottom plate 10, the main arm 31 is provided with a placing hole 35 along the length direction, the reinforcing rod 33 is arranged in the placing hole 35, the length of the main arm 31 is H, the length of the reinforcing rod 33 is h, and the length range of the reinforcing rod 33 is h >= 0.75H.

[0053] Specifically, by adding the reinforcing rod 33 in the arm 30 of the unmanned aerial vehicle frame, the reinforcing rod 33 is arranged to support the main arm 31, improve the bending stiffness of the arm 30, so that the arm 30 is not easy to deform when subjected to external impact or load, thereby increasing the stability of the overall structure, avoiding excessive bending or twisting of the arm 30 due to external force during flight, and ensuring that the unmanned aerial vehicle maintains structural stability in various tasks. It should be noted that in order to ensure the lightweight structure design of the unmanned aerial vehicle frame, the design of the arm 30 usually adopts a structure layout gradually decreasing from the fixed end to the free end, which can effectively reduce the amount of material used, thereby reducing the total weight of the frame, thereby improving the endurance and flight efficiency of the unmanned aerial vehicle. On the basis of lightweight design, in order to further ensure that the arm 30 has sufficient design strength, a reinforcing rod 33 is arranged inside the main arm 31, wherein h represents the length of the reinforcing rod 33, H represents the length of the main arm 31, and the length range of the reinforcing rod 33 is h >= 0.75H (i.e. more than three quarters of the length of the main arm 31), which can ensure that the reinforcing rod 33 effectively covers the key stress area of the main arm 31, so that the arm 30 can better maintain structural strength and stability under complex flight conditions, thereby greatly improving its bending strength and torsional resistance, and enhancing the overall carrying capacity.

[0054] It should be noted that one end of the main arm 31 is connected between the bottom plate 10 and the top plate 40, and the other end is provided with a plurality of wing mounting holes, which can conveniently install and remove the wings, improve the flexibility of the unmanned aerial vehicle, and adapt to different task requirements or modification. The branch arm 32 is arranged on the side of the main arm 31 close to the bottom plate 10 to provide support for the take-off and landing of the unmanned aerial vehicle.

[0055] As Figures 6-8 shown in an optional embodiment of the utility model, the placing hole 35 is conical, the smallest aperture of the placing hole 35 is located on the side close to the free end of the main arm 31, and the reinforcing rod 33 is a conical carbon fiber rod.

[0056] Specifically, by designing the reinforcing rod 33 as a carbon fiber rod in the shape of a cone, the main arm 31 is provided with a placement hole 35 adapted to the reinforcing rod 33, and the placement hole 35 is a transverse conical structure with one side thick and the other thin, and the smallest diameter of the placement hole 35 is located at the side close to the free end of the main arm 31, so that the free end of the main arm 31 can still maintain a relatively light weight after the reinforcing rod 33 is installed, and in combination with the thick feature of the reinforcing rod 33 close to the fixed end of the main arm 31 and the top plate 40 and the bottom plate 10, the gravity center is optimally distributed, avoiding the decline of flight performance caused by excessive weight of the material, and ensuring the balance of the unmanned aerial vehicle in flight. The optimized structural design of the light free end of the main arm 31 helps to reduce air resistance and improve flight efficiency, especially significantly improving stability during high-speed flight. It should be noted that the carbon fiber material is a high-performance fiber material composed of carbon elements, which is widely used in the fields of aerospace, automobiles, unmanned aerial vehicles and sports equipment due to its excellent lightweight and high-strength characteristics. The reinforcing rod 33 made of carbon fiber material not only effectively reduces the overall weight of the arm 30, but also ensures that the arm 30 structure has sufficient impact strength, so that the unmanned aerial vehicle realizes lightweight design while ensuring performance, avoiding excessive bending or twisting of the arm 30 during flight due to external forces.

[0057] As shown in Figures 6-8 In an optional embodiment of the present application, the main arm 31 is further provided with a plurality of uniformly arranged weight reduction holes 36 along the length direction, and the aperture of the weight reduction hole 36 along the width direction of the main arm 31 is larger than the maximum aperture of the placement hole 35.

[0058] Specifically, by further providing the main arm 31 with a plurality of uniformly arranged weight reduction holes 36 along the length direction, the material usage of the main arm 31 is reduced, helping to realize lightweight design. At the same time, the aperture of the weight reduction hole 36 along the width direction of the main arm 31 is larger than the maximum aperture of the placement hole 35, and the large-aperture weight reduction hole 36 can help to improve air flow in the air flow, effectively reduce air resistance during unmanned aerial vehicle flight, enhance heat management capability, reduce the risk of main arm 31 heating during high-strength flight, optimize aerodynamic characteristics, and especially improve flight stability and efficiency during high-speed flight. In addition, in order to better reduce the weight of the unmanned aerial vehicle frame and arrange the later line, the corresponding weight reduction hole 36 can also be arranged on the supporting arm 32 to reduce the weight or arrange the line.

[0059] As shown in Figures 1-7 In an optional embodiment of the present application, the included angle between the arms 30 is 90°, and the included angle between the main arm 31 and the supporting arm 32 ranges from 51° to 70°.

[0060] Specifically, during flight, the reasonable included angle design helps to disperse the load borne by each arm 30, effectively resists external disturbance, reduces stress concentration, improves the anti-overturning capability of the unmanned aerial vehicle, and maintains stable flight. The included angle between the arms 30 is 90°, which makes the center of gravity of the unmanned aerial vehicle more uniform. In combination with the included angle between the main arm 31 and the branch arm 32 being set in the range of 51°-70°, the center of gravity of the unmanned aerial vehicle frame can be kept near the geometric center of the unmanned aerial vehicle frame, reducing the tilting and instability phenomenon caused by the deviation of the center of gravity, and ensuring the safety and reliability of the unmanned aerial vehicle in complex flight environment.

[0061] As shown in the drawings, Figures 1-3 In an optional embodiment of the present application, the top plate 40 is provided with a holder plate 42 at one end, the holder plate 42 is provided with a holder interface 43, and the holder plate 42 is provided with an arc surface at the two top corners away from the top plate 40.

[0062] Specifically, the holder plate 42 is designed to carry the holder, and a plurality of symmetrical holder interfaces 43 are arranged on the holder plate 42 to ensure that the holder can be stably installed and improve the shooting stability. The reasonable installation position and interface design also facilitate the quick replacement and maintenance of the holder. The arc surface provided on the two top corners of the holder plate 42 away from the top plate 40 not only optimizes the appearance design, but also helps to reduce air resistance. The arc corner design can effectively disperse external impact force, reduce the direct impact force on the holder when the unmanned aerial vehicle collides, and reduce the risk of damage to the holder.

[0063] In addition, in order to facilitate the heat dissipation and wiring arrangement of the unmanned aerial vehicle, two long holes and a short hole are optionally arranged in the middle of the bottom plate 10 and the middle of the top plate 40, and a wire hole is arranged in the top plate 40. The wire hole is symmetrically arranged at the two ends of the two long holes. The design of the long hole, the short hole and the wire hole helps to improve the air circulation and enhance the heat dissipation effect. During the operation of the unmanned aerial vehicle, electronic components and batteries may generate a large amount of heat. Reasonable hole design can effectively promote the exhaust of hot air, reduce the internal temperature, and prevent overheating from affecting the performance of the equipment. The arrangement of the wire hole takes into account the heat dissipation and provides a convenient wiring scheme for the internal wiring, which can effectively manage and fix the wiring, avoid loose or interference of the wiring, and improve the overall structure of the neatness and safety. Reasonable wiring helps to reduce signal interference and improve the reliability of the system.

[0064] The utility model embodiment further provides a kind of unmanned plane, including unmanned plane rack, and unmanned plane rack includes top plate 40, arm 30, bottom plate 10, shock block 20 and connecting piece 50.The installation space formed between top plate 40 and bottom plate 10 can be used to place battery, receiver and camera and other important components, the main arm 31 part of arm 30 is used to fix wing, ensure flight stability, and support arm 32 provides the support for the take-off and landing of unmanned plane, increase stability and security in take-off and landing process, reduce the damage of hard landing to unmanned plane structure and component.Shock block 20 provides additional anti-vibration protection for unmanned plane rack, effectively absorbs and buffers impact force, and impact force can be gradually diffused from connecting place to the larger surface area of bottom plate 10, reduce local stress concentration.Rational component layout not only facilitates centralized management and maintenance, also makes the disassembly of battery, camera and other key equipment more convenient, save user operation time, improve the use experience of unmanned plane.And connecting piece 50 provides firm support for the connection between top plate 40, arm 30 and bottom plate 10, ensure the stability and reliability of overall structure.It plays a key role in load transmission, vibration reduction and compression strength improvement, helps to improve the overall performance and safety of equipment.

[0065] The above is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skill in the art person, on the premise of not departing from the technical principle of the utility model, can also make several improvements and replacement, these improvements and replacement also should be regarded as the protection range of the utility model.

Claims

1. An unmanned aerial vehicle (UAV) frame, comprising: The utility model relates to a kind of unmanned aerial vehicle frame, including: Bottom plate, the four corners of the bottom plate are provided with first mounting hole; Damping block, the damping block is arranged at the first mounting hole, and the second mounting hole corresponding to the first mounting hole is arranged on the damping block; Arm, the arm is symmetrically distributed at the four corners of the bottom plate, and the third mounting hole corresponding to the first mounting hole is arranged on the arm; Top plate, the top plate is arranged on the arm, and the fourth mounting hole is arranged on the four corners of the top plate; Connecting piece, the connecting piece passes through the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole, for fixing the top plate, the arm and the damping block on the bottom plate.

2. The drone airframe of claim 1, wherein, The damping block includes annular boss and elastic protrusion extending from the sidewall of the annular boss to the middle part of the bottom plate, and the second mounting hole is arranged on the annular boss.

3. The drone airframe of claim 2, wherein, The first mounting hole, the third mounting hole and the fourth mounting hole each include two through holes, two damping blocks are arranged at each first mounting hole, and the included angle of the two elastic protrusions at each first mounting hole ranges from 60° to 90°.

4. The drone airframe of claim 2, wherein, The elastic protrusion is a semi-conical body, and the end of the elastic protrusion away from the annular boss is a pointed cone part.

5. The drone airframe of claim 1, wherein, The arm includes main arm, branch arm and reinforcing rod, the branch arm is arranged on the side of the main arm close to the bottom plate, the main arm is provided with placing hole along the length direction, the reinforcing rod is arranged in the placing hole, the length of the main arm is H, the length of the reinforcing rod is h, and the length of the reinforcing rod ranges from 0.75H to h.

6. The drone airframe of claim 5, wherein, The placing hole is conical, the minimum aperture of the placing hole is located on the side close to the free end of the main arm, and the reinforcing rod is a conical carbon fiber rod.

7. The drone airframe of claim 6, wherein, The main arm is also penetrated by a plurality of uniformly arranged weight-reducing holes along the length direction, and the aperture of the weight-reducing hole along the width direction of the main arm is greater than the maximum aperture of the placing hole.

8. The drone airframe of claim 5, wherein, The included angle between each arm is 90°, and the included angle between the main arm and the branch arm ranges from 51° to 70°.

9. The drone airframe of claim 1, wherein, The top plate is provided with a gimbal placing plate at one end, the gimbal interface is penetrated through the gimbal placing plate, and the arc surface is arranged on the two top corners away from the top plate of the gimbal placing plate.

10. A drone, characterized in that, The utility model relates to a kind of unmanned aerial vehicle frame.

Images