CN113511342B

CN113511342B - Electric control device and unmanned aerial vehicle

Info

Publication number: CN113511342B
Application number: CN202110860641.4A
Authority: CN
Inventors: 杨淑侠
Original assignee: Shenzhen Goertek Technology Co ltd
Current assignee: Shenzhen Goertek Technology Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-04-25
Anticipated expiration: 2041-07-28
Also published as: CN113511342A

Abstract

The invention discloses an electric control device and an unmanned aerial vehicle, wherein the unmanned aerial vehicle comprises: the shell is internally provided with an accommodating cavity; the electric control plate is arranged in the accommodating cavity of the shell; the antenna assembly is arranged on the inner side wall of the shell and/or the electric control plate and is far away from the flight assembly. The invention solves the problems that the wireless antenna is easily influenced by the flight state of the unmanned aerial vehicle, the communication effect in the flight process of the unmanned aerial vehicle is poor, the flight control of the unmanned aerial vehicle is influenced, the controllability and the safety in the flight process of the unmanned aerial vehicle are poor, and even the unmanned aerial vehicle is in an out-of-control state when serious.

Description

Electric control device and unmanned aerial vehicle

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to an electric control device and an unmanned aerial vehicle.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle mainly controlled by wireless remote control or self program. The existing unmanned aerial vehicle needs to communicate with the ground control center through the wireless antenna in the flight state, however, the wireless antenna is easily affected by the flight state of the unmanned aerial vehicle, so that the communication effect in the flight process of the unmanned aerial vehicle is poor, and even the unmanned aerial vehicle is in an out-of-control state when serious.

Disclosure of Invention

The invention mainly aims to provide an electric control device and an unmanned aerial vehicle, and aims to improve controllability and safety of the unmanned aerial vehicle.

To achieve the above object, the present invention provides an electronic control device, including:

the shell is internally provided with an accommodating cavity;

the electric control plate is arranged in the accommodating cavity of the shell;

the antenna assembly is arranged on the inner side wall of the shell and/or the electric control plate and is far away from the flight assembly.

Optionally, the unmanned aerial vehicle further comprises an electrical connector;

the antenna component is electrically connected with the electric control board through the electric connector.

Optionally, the electrical connector includes:

the fixed base is fixed on the electric control board;

and one end of the connecting wire connector is fixedly connected with the antenna assembly, and the other end of the connecting wire connector is fixed on the fixed base so as to realize the electric connection between the antenna assembly and the fixed base.

Optionally, the electrical connector further comprises:

the self-locking buckle is respectively buckled with the fixed base and the connecting line connector so as to realize that the connecting line connector is detachably connected to the fixed base.

Optionally, the self-locking buckle includes:

the buckle body is provided with a chute, and the clamping part of the connecting line connector is fixed in the chute;

and the base buckling part is used for clamping and fixing the fixed base.

Optionally, the antenna assembly includes a first antenna unit and a second antenna unit, where the first antenna unit and the second antenna unit are separately disposed at two ends of the housing and/or the electric control board in a width direction.

Optionally, the first antenna unit and the second antenna unit are rotationally symmetrically arranged at 180 degrees in the width direction of the unmanned aerial vehicle body.

Optionally, the electronic control device further includes:

the camera, set up in unmanned aerial vehicle body is kept away from flight assembly's one end.

The invention also proposes an unmanned aerial vehicle, comprising:

a mounting bracket;

the flying assembly is fixedly arranged at one end of the mounting bracket; an electronic control device as described above;

wherein, electrically controlled device set up in the installing support keep away from flight subassembly's one end.

Optionally, the flight assembly comprises:

the engine is fixedly arranged at one end, far away from the antenna assembly, of the mounting bracket;

a plurality of propellers disposed around the engine.

Optionally, the flight assembly comprises:

a plurality of propellers disposed around the engine.

Optionally, the flight assembly further comprises:

the propeller support comprises a plurality of support arms, and each support arm is correspondingly provided with a propeller;

the protection shell is buckled with the propeller support frame; wherein,,

the middle parts of the propeller support frame and the protective shell are also provided with accommodating through holes, and the engine penetrates through the accommodating through holes and is fixed on the mounting bracket.

The antenna component is arranged on the inner side wall of the shell and/or the electric control board and is far away from the flying component, so that the antenna component and the flying component can be arranged at two ends of the electric control board. The invention can reduce the vibration and electromagnetic induction change generated in the rotation process of the flight assembly, and the influence of a large amount of heat generated by the operation of the engine and the propeller on the antenna performance, thereby ensuring the stability of the antenna structure and having high antenna performance and overall reliability. The invention solves the problems that the wireless antenna is easily influenced by the flight state of the unmanned aerial vehicle, the communication effect in the flight process of the unmanned aerial vehicle is poor, the flight control of the unmanned aerial vehicle is influenced, the controllability and the safety in the flight process of the unmanned aerial vehicle are poor, and even the unmanned aerial vehicle is in an out-of-control state when serious.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an electronic control device of the present invention applied to an unmanned aerial vehicle;

FIG. 2 is a schematic diagram of an explosion structure of an embodiment of the electronic control device of the present invention applied to an unmanned aerial vehicle;

FIG. 3 is an internal detail view of one embodiment of an electrical control assembly of the present invention;

FIG. 4 is an internal detail view of another embodiment of an electrical control group of the present invention;

FIG. 5 is a schematic diagram of an embodiment of the antenna assembly of FIG. 2;

FIG. 6 is a schematic diagram of another embodiment of the antenna assembly of FIG. 2;

FIG. 7 is a schematic diagram of an embodiment of the electrical connector of FIG. 2;

fig. 8 is an exploded view of one embodiment of the electrical connector of fig. 2.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The invention provides an electric control device which is applied to an unmanned aerial vehicle, wherein the unmanned aerial vehicle can be an FPV camera, an aerial camera, a flight control board, a sensing board, a tripod head server and the like.

The unmanned aerial vehicle is an unmanned aerial vehicle mainly controlled by wireless remote control or self program. In the flying state of the existing unmanned aerial vehicle, the existing unmanned aerial vehicle needs to communicate with a ground control center through a wireless antenna, receives a control instruction sent by the ground control center, executes tasks such as flying and photographing, and returns the flying state to the control center; in addition, in the flight process, the unmanned aerial vehicle also needs to actively or passively change the flight state according to the flight condition to obtain the expected flight track or ensure the safety of the unmanned aerial vehicle. However, the wireless antenna is easily affected by the flight state of the unmanned aerial vehicle, so that the communication effect in the flight process of the unmanned aerial vehicle is poor, the flight control of the unmanned aerial vehicle is affected, the controllability and the safety in the flight process of the unmanned aerial vehicle are poor, and even the unmanned aerial vehicle is in an out-of-control state when serious. How to ensure that the signal is good and is not influenced by the flying of the machine, the placement position and design form of the antenna inside the unmanned aerial vehicle and the reliability of the connection with the main board are very important.

In order to solve the above problems, referring to fig. 1 to 8, in an embodiment of the present invention, the electronic control device includes:

a housing 110, wherein an accommodating cavity is arranged in the housing 110;

the electronic control board 120 is disposed in the accommodating cavity of the housing 110, where the antenna assembly 300 is disposed on an inner sidewall of the housing 110 and/or disposed on the electronic control board 120.

The antenna assembly 200 is disposed on the inner sidewall of the housing 200 and/or the electronic control board 110, and is disposed away from the flight assembly 300.

In this embodiment, the electronic control device may be used to control the operation of the flight assembly in the unmanned aerial vehicle. The casing 110 includes a front casing 111, a rear casing 112, and an end cover 113, where the front casing 111, the rear casing 112, and the end cover 113 enclose to form a space for accommodating the electronic control board 120, the antenna assembly 300 may be disposed on an inner wall surface of the casing 110, or may be disposed on the electronic control board 120, and when disposed on the inner wall surface of the casing 110, the antenna assembly 300 may be implemented by an FPC antenna, which may be adhered to the casing 110 by an adhesive material, or may be embedded in the casing 110, specifically, after wiring of the antenna assembly 300 is formed by circuit wiring, the antenna assembly 300 is placed in a mold of the casing 110 when the casing 110 is manufactured, so that the antenna assembly 300 is integrally formed and disposed on the casing 110. Wherein the housing 110 is made of a non-conductive material, such as silicon oxide, aluminum oxide, FR-4 glass epoxy, in some embodiments, the housing 110 may be made of a material having a buffer to reduce the vibration generated by the flight assembly 200 from being transmitted to the antenna assembly 300 disposed on the housing 110, thereby reducing the influence of the flight assembly 200 on the antenna assembly 300. The number of the electric control boards 120 may be plural, for example, two electric control boards 120 may be separately provided at both sides of the mounting bracket 500, and the mounting bracket is provided with supporting ribs for supporting the electric control boards 120, so as to avoid the electric control boards 120 from directly contacting with the supporting bracket 120, and increase the heat dissipation space of the electronic components on the electric control boards 120, so as to improve the heat dissipation effect of the electric control boards 120.

The electric control board 110 and the unmanned aerial vehicle body form an unmanned aerial vehicle body, the unmanned aerial vehicle can realize an aircraft taking off and landing vertically, the body framework is used for supporting, fixedly installing the electric control board and the flight assembly 200, the electric control board 120 is electrically connected with the flight assembly 200, the electric control board is used for controlling the flight assembly 200 to work, the flight assembly 200 is used for providing power for the unmanned aerial vehicle, the unmanned aerial vehicle body 100 can be in a cylindrical arrangement or in a square column arrangement, based on the ground, the unmanned aerial vehicle body 100 is in a horizontal and static state (for example on the ground or on another horizontal surface) based on the ground, and the unmanned aerial vehicle body 100 is in a vertical installation, namely vertical to the ground. In contrast, when the drone is in a horizontal and stationary state, the horizontally mounted drone body 100 is parallel to the ground. The unmanned aerial vehicle body 100 has a top end and a bottom end in a vertical direction thereof, and the antenna assembly 300 and the flight assembly 200 are separately provided at the top end and the bottom end of the unmanned aerial vehicle body 100, or the antenna assembly 300 is provided near the top end.

The electronic control board 110 is accommodated in the airframe of the unmanned aerial vehicle body 100, and the electronic control board 110 is provided with a wireless receiving/transmitting module, a main controller and a driver (electronic speed regulator), wherein the wireless communication module can receive control instructions output by a ground remote control device, such as control instructions for controlling the unmanned aerial vehicle to perform ascending operation, descending operation, left-right translation, rotation control instructions, hover control instructions and the like, and output the received control instructions to the main controller, so that the main controller responds to the control instructions and outputs control signals to the driver, and the driver controls the flight assembly 200 to work again so as to execute corresponding actions. The wireless communication module can also transmit the working state (such as the flight altitude, the flight speed, the flight attitude and other parameters of the unmanned aerial vehicle) of the unmanned aerial vehicle output by the main controller, feedback signals (such as response signals) and the like back to the ground remote control device so as to realize information interaction between the unmanned aerial vehicle and the ground remote control device. When the unmanned aerial vehicle has a shooting function, the image data shot by the shooting component can be output to the main controller, and after the main controller performs image processing, the image data is output to the wireless communication module so as to transmit the shot image data and the like back to the ground remote control device, so that information interaction between the unmanned aerial vehicle and the ground remote control device is realized.

The wireless communication module may be a WIFI, 5G communication module, radio frequency unit, WLAN, GPRS, bluetooth communication module, etc., and is electrically connected to the antenna assembly 300, so as to receive a control instruction sent by the ground remote control device through the antenna assembly 300, or transmit data back to the ground remote control device through the antenna assembly 300. The unmanned aerial vehicle body 100 is integrated with one or a plurality of combination of wireless communication modules such as WIFI, 5G communication module, radio frequency unit, WLAN, GPRS, bluetooth communication module and the like. Antenna assembly 300 is according to wireless communication module's difference, and the type and the quantity that set up are also different, for example when being provided with the WIFI module in unmanned aerial vehicle body 100, antenna assembly 300 then includes the WIFI antenna that can realize the WIFI communication, when unmanned aerial vehicle body 100 is provided with 5G communication module, antenna assembly 300 then includes the 5G antenna that can realize the 5G communication.

When the antenna assembly 300 is disposed on the electronic control board 120, the antenna assembly 300 may be integrally disposed on the wireless communication module, that is, may be implemented by using AOP (antenna-on-package) and AIP (antenna-in-package), where the antenna assembly 300 is sealed by a potting adhesive or disposed on the surface of the wireless communication module and integrally disposed on the wireless communication module. Alternatively, the antenna assembly 300 may also be implemented in the form of circuit wiring that forms the wiring of the antenna on the electronic control board 120. The antenna may be a folded antenna (planar structure), or a multi-layered structure, for example, a folded antenna may be an F-shaped, L-shaped, square, round, spiral, rice-shaped, fishbone-shaped, or back-shaped antenna, and the folded antenna may be tiled on the housing 110, or on the antenna substrate.

It can be appreciated that the antenna assembly 300 is disposed on the inner wall surface of the unmanned aerial vehicle body 100, and the circuit modules disposed on the electronic control board 120, such as the wireless communication module and the main controller, are disposed on the two mounting carriers, without additionally providing a circuit board, so that the volume of the electronic control board 120 can be reduced without changing the volume of the unmanned aerial vehicle body 100, and the electronic control board 120 is conveniently mounted in the unmanned aerial vehicle housing 110, and meanwhile, the PCB layout of the electronic control board 120 is simplified. In addition, the antenna assembly 300 and the circuit modules on the electric control board 120 are arranged in a scattered manner, so that electromagnetic radiation generated by a switching device and the like on the electric control board 120 can be prevented from affecting normal operation of the antenna, and electromagnetic interference among unmanned aerial vehicle electric control board elements can be reduced. The heat generated by the power devices on the electronic control board 120, such as a power supply, an inverter, etc., does not affect the operation of the antenna assembly 300. The antenna assembly 300 is arranged on the shell, so that the design space of the antenna assembly 300 can be increased, the influence of circuit wiring on the electric control board on the antenna can be avoided, the anti-interference capability of the antenna assembly can be improved, and the stability of the antenna assembly 300 can be improved.

In practical applications, the antenna assembly is disposed on the electronic control board and/or the housing and is disposed as far away from the flight assembly 200 as possible. The flight assembly 200 of the unmanned aerial vehicle comprises at least one propeller 220 and an engine 210 for driving the propeller 220 to work, the propeller 220 and the engine 210 are arranged at the bottom of the unmanned aerial vehicle body 100, and the engine 210 can control the propeller 220, the forward rotation and the reverse rotation, the rotation angle and the like so as to enable the unmanned aerial vehicle to perform ascending, descending, left-right translation, left-right rotation, hovering and other operations. The screw 220 can produce the vibration at pivoted in-process, and the motor also can produce electromagnetic induction change at the course of working, and at engine 210, screw 220 during operation simultaneously also can produce a large amount of heats, and antenna assembly 300 is at the in-process of working, carries out data transmission through the mode of electromagnetic wave, and the factor such as vibration, electromagnetic induction and the heating of unmanned aerial vehicle during operation all can influence the parameter variation of antenna, and then influence the performance of antenna. For this reason, this embodiment sets up flight subassembly 200 in the bottom of unmanned aerial vehicle body 100, and antenna assembly 300 then sets up in the top of unmanned aerial vehicle body 100 to receive/send wireless communication information, thereby make antenna assembly 300 and flight subassembly 200 both keep away from as far as possible when the installation, with the operating condition that guarantees the antenna and can adapt to unmanned helicopter, do not receive unmanned helicopter flight state's interference, do not influence unmanned aerial vehicle's antenna performance, guarantee to carry out reliable communication between ground remote control device and the unmanned aerial vehicle, improve unmanned aerial vehicle's controllability and security.

The electronic control device of the present invention is configured to place the antenna assembly 300 on the inner sidewall of the housing 110 and/or the electronic control board 120 and far away from the flight assembly 300, so that the antenna assembly 300 and the flight assembly 200 can be separately placed at two ends of the electronic control board 110. The invention can reduce vibration and electromagnetic induction change generated in the rotation process of the flight assembly 200, and influence of a large amount of heat generated by the operation of the engine 210 and the propeller 220 on the antenna performance, thereby ensuring the stability of the antenna structure and high antenna performance and overall reliability. The invention solves the problems that the wireless antenna is easily influenced by the flight state of the unmanned aerial vehicle, the communication effect in the flight process of the unmanned aerial vehicle is poor, the flight control of the unmanned aerial vehicle is influenced, the controllability and the safety in the flight process of the unmanned aerial vehicle are poor, and even the unmanned aerial vehicle is in an out-of-control state when serious.

Referring to fig. 2 or 3, in an embodiment, when the antenna assembly 300 is disposed on the inner sidewall of the housing 110, the drone further includes an electrical connector 400;

the antenna assembly 300 and the electronic control board 120 are electrically connected through the electrical connector 400.

In this embodiment, the wireless communication module, the main controller and the like are all disposed on the electronic control board 120, the electronic control board 120 is provided with an antenna feeding point and an antenna feeding point, and when the antenna assembly 300 is disposed on the inner side wall of the housing 110, the antenna assembly 300 is electrically connected with the wireless communication module on the electronic control board 120 by using the electrical connector 400, so as to electrically connect the antenna assembly 300 with the antenna feeding point and the antenna feeding point disposed on the electronic control board 120 respectively, and form a feeding loop, so that the wireless communication module sends data to the antenna assembly 300 through the antenna feeding point and the antenna feeding point, or receives data from the antenna assembly 300. The electrical connector 400 may be a cable 420, an FPC, or the like, one end of the electrical connector 400 may be soldered to an antenna unit of the antenna assembly 300, the other end of the electrical connector 400 may be electrically connected through a connection terminal provided on the electronic control board 120, or one end of the electrical connector 400 may be soldered to the electronic control board 120 by soldering.

Referring to fig. 2, 3, 7 and 8, in one embodiment, the electrical connector 400 includes:

a fixed base 410 fixed on the electric control board 110;

and one end of the connecting wire connector 420 is fixedly connected with the antenna assembly 200, and the other end of the connecting wire connector 420 is fixed on the fixed base 410 so as to realize the electric connection between the antenna assembly 200 and the fixed base 410.

In this embodiment, the fixing base 410 is fixed on the electric control board 110 by welding, one end of the connection joint 420 is fixedly and electrically connected with the antenna unit of the antenna assembly 300, and the connection joint can be buckled with the fixing base 410 disposed on the electric control board 120 by buckling, plugging, etc. The antenna assembly 300 and the electric control board 120 are detachably and fixedly electrically connected through the fixing base 410 and the connecting joint 420, so that the problem of antenna contact caused by flying vibration is solved, and the antenna assembly 300 and the electric control board 120 can be prevented from generating relative movement when the unmanned aerial vehicle vibrates and impacts in flight, so that the antenna assembly 300 and the electric control board 120 are disconnected, and a wireless communication module on the electric control board 120 cannot send/receive communication signals. Optionally, a clamping groove 110a is further provided in the housing 110 of the unmanned aerial vehicle body 100, and a cable 420 connecting the electric control board 120 and the antenna assembly 300 can be fixed on the clamping groove on the front housing 111 of the unmanned aerial vehicle body, so that the installation is convenient, friction between the cable and the electric control board 120 and/or the housing 110 is avoided, and the cable 420 can be protected.

Referring to fig. 7 and 8, further, in order to further improve the stability between the fixed base 410 and the connection connector 420, the embodiment is further provided with a self-locking buckle 430, wherein the self-locking buckle 430 is respectively buckled with the fixed base 410 and the connection connector 420, so that the connection connector 420 is detachably connected to the fixed base 410, and the connector and the base are buckled by the self-locking buckle 430, so that the connector and the base cannot fall off during falling and use. Specifically, the self-locking buckle 430 is provided with a buckle body 431, and the buckle body 431 has a chute in which the clamping portion 421 of the connection connector 420 is fixed; the self-locking head 430 is further provided with a base fastening portion 432 for fastening and fixing the fixing base 410.

The two sides of the buckle body 431 extend toward the direction of the fixed base 410, and are bent inward to form folds, which form a chute into which the clamping portion 421 of the connecting wire connector 420 slides. The base fastening portion 432 is disposed in a U-shape, and a buckle is further protruding on the fixed base 410, so that the base fastening portion 432 can be fixed on the fixed base 410 when the base fastening portion 432 is fastened to the fixed base 410.

The connecting connector 420 can be fixed on the self-locking buckle 430 through the sliding groove in the buckle body 431, and the base buckling part 432 of the self-locking buckle 430 is buckled on the fixed base 410. Thus, under the clamping action of the self-locking buckle 430, the fixed base 410 and the connection connector 420 can be prevented from moving relatively in the falling and using process, so that the connection connector 420 falls off from the fixed base 410, and the antenna assembly and the electric control board can move relatively. In the process of assembling the electronic control device, after the fixed base 410 is fixed on the electronic control board 110, the connecting wire connector 420 is locked on the fixed base 410, and then the connector and the base are buckled by the self-locking buckle 430, so that the fixed connection between the fixed base 410 and the connecting wire connector 420 is realized.

Referring to fig. 2 to 4, in an embodiment, the antenna assembly 300 includes a first antenna unit 310 and a second antenna unit 320, and the first antenna unit 310 and the second antenna unit 320 are disposed at both ends of the electronic control board 120 and/or the housing 110 in the width direction.

In this embodiment, the first antenna unit 310 and the second antenna unit 320 may be disposed at two edges of the width direction of the inner surface of the housing 110, and the first antenna unit 310 and the second antenna unit 320 may be disposed at two edges of the width direction of the electronic control board 120. Any one of the first antenna unit 310 and the second antenna unit 320 may be configured to receive a communication signal (such as a control command) sent by the ground remote control device, and the other may be configured to send a communication signal (such as image data, an operating parameter, a state, etc. of the unmanned aerial vehicle) to the ground remote control device. Specifically, the first antenna unit 310 may be a receiving antenna, the second antenna may be a transmitting antenna, or the first antenna unit 310 may be a transmitting antenna, and the second antenna unit 320 may be a receiving antenna. When the antenna assembly 300 includes WIFI antennas, the first antenna unit 310 and the second antenna unit 320 may operate in different WIFI frequency bands, for example, the first antenna unit 310 operates in one WIFI frequency band and the second antenna unit 320 operates in another WIFI frequency band. Referring to fig. 5 and 6, the first antenna unit 310 is provided with an antenna body 311, an antenna feeding point 312, and an antenna ground point 313, and the antenna feeding point 312 and the antenna ground point 313 are electrically connected to the electronic control board 110 through an electrical connector 400. The second antenna unit 320 is provided with an antenna body 321, an antenna feed point 322, and an antenna ground point 323, and the antenna feed point 322 and the antenna ground point 323 are electrically connected to the electronic board 110 through the electrical connector 400.

It should be noted that, in the present stage, the electronic products of the unmanned aerial vehicle are gradually popularized in the life of people, and the requirements on the ID, function, structure and performance design of the products are also higher and higher, and the products are provided with dual-frequency dual-WIFI antennas, which have higher requirements on the isolation of the antennas, and usually improve the isolation of the antennas by changing the antenna form, feeding the grounding position of the antenna, however, the effect is worse, and the reliable communication between the unmanned aerial vehicle and the ground is easily affected.

For this, referring to fig. 2 to 4, in an embodiment, the first antenna unit 310 and the second antenna unit 320 are disposed in 180-degree rotational symmetry in the width direction of the unmanned aerial vehicle body 100.

In this embodiment, the first antenna unit 310 and the second antenna unit 320 have the same structure, and the two antenna units are arranged in 180-degree rotational symmetry on two edges of the inner surface of the housing 110 in the width direction, or the two antenna units are arranged in 180-degree rotational symmetry on two edges of the electric control board 120 in the width direction, so that the symmetry of the antenna can be ensured through the dual design of the symmetry and the electrical symmetry of the structure, and the improvement of the isolation performance of multiple antennas can be realized through the orthogonalization of the directivity of the two antennas.

Referring to fig. 2 or 3, in an embodiment, the electronic control device further includes:

the camera 600 is disposed at an end of the electronic control board 120 away from the flight assembly 200.

Optionally, the unmanned aerial vehicle may implement aerial photography by setting the camera 600 thereon, and the unmanned aerial vehicle body 100 further includes a graphics processor (Graphics Processing Unit, GPU) and a memory, where the graphics processor processes image data of still pictures or videos obtained by, for example, the camera 600 in the video capturing mode or the image capturing mode. The image frames processed by the graphics processor may be stored in a resident memory (or other storage medium) or transmitted to a surface remote control device, mobile terminal, etc. via a radio frequency unit or WiFi module. Specifically, after receiving a flight control command and a shooting control command sent by a ground remote control terminal, the ground remote control terminal performs flight operations such as ascending, descending, hovering and the like according to the flight control command, shoots according to the shooting control command, and can adjust the flight attitude to adjust the shooting angle.

The propeller 220 can vibrate during rotation, which may affect the video and the still image or the image imaging effect of the video when the camera 600 works, and simultaneously, a large amount of heat is generated when the camera 600 works, and a large amount of heat is also generated when the engine 210 and the propeller 220 work. For this reason, the present embodiment separates the camera 600 and the flight module 200 from each other at the top and bottom of the unmanned aerial vehicle body 100, or the camera 600 is disposed near the top. In addition, camera 600 and flight subassembly 200 divide and locate unmanned aerial vehicle body 100's both ends, can increase the space distance between the two, are favorable to dispersing unmanned aerial vehicle body 100's heat source, can also increase the radiating area between two high-power devices, are favorable to improving unmanned aerial vehicle's radiating efficiency.

In a specific embodiment, the number of cameras 600 may be two, the two cameras 600 are sequentially arranged in the length direction of the unmanned aerial vehicle body 100, and the cameras 600 and the antenna assembly 300 may be arranged side by side in the horizontal direction, where when the antenna assembly 300 includes the first antenna unit 310 and the second antenna unit 320, the two antenna units are respectively arranged at two sides of the camera 600. So arranged, the antenna assembly 300 and camera 600 may be spatially positioned as far apart from the flight assembly 200 as possible.

Referring to fig. 2, in an embodiment, the unmanned aerial vehicle body 100 further includes:

the mounting bracket 500, the flight assembly 200, the housing 110 and the electronic control board 120 are respectively mounted on the fixing bracket.

In this embodiment, the mounting bracket 500 is used as the center of the unmanned aerial vehicle, the electric control board 120 and the mounting bracket 500 may be detachably fixed on the mounting bracket 500 by screws, buckles, etc., the mounting bracket 500 is further provided with a buckling portion, and the front shell 111 and the rear shell 112 of the housing 110 may be buckled with the buckling portion of the mounting bracket 500 by the buckles, so that the electric control board, the antenna assembly 300, etc. are packaged in the housing 110, so as to prevent rainwater, dust, etc. from entering the housing 110, and affecting the normal operation of the electric control board and the antenna assembly 300. The flight assembly 200 is arranged at the bottom of the fixed bracket, and the flight assembly 200 and the fixed bracket can be fixedly connected through screws, buckles and the like. In a specific embodiment, the electric control board 120 and the positions corresponding to the electric control board 120 are respectively provided with screw holes, and the front shell 111 of the housing 110, the electric control board 120 and the mounting bracket 500 are fixedly connected through the screw holes by screws.

When the antenna assembly 300 is mounted on the housing 110 and/or the electric control board 120, the housing 110 and the electric control board 120 are fixed with the flight assembly 200 through the mounting bracket 500, that is, the housing 110 and the electric control board 120 are not directly contacted with the flight assembly 200, so that vibration and heat propagation of the flight assembly 200 are reduced at intervals of the mounting bracket 500, and the influence of the vibration on the antenna assembly 300 by the flight assembly 200 can be further reduced.

Referring to fig. 2, in one embodiment, the flight assembly 200 includes:

a motor 210 fixedly disposed at an end of the mounting bracket 500 remote from the antenna assembly 300;

a plurality of propellers 220 are disposed around the engine 210.

In this embodiment, the flight assembly 200 of the unmanned aerial vehicle is driven by pure electric, the engine 210 is a motor, the unmanned aerial vehicle further includes a battery, the battery is used to provide electric energy for the operation of the motor, and the motor further drives the propeller 220 to rotate, so as to realize the flight of the unmanned aerial vehicle. The weight of the battery is greater than the weight of the unmanned aerial vehicle, so as to realize the balance of the unmanned aerial vehicle, the battery can be arranged on the mounting bracket 500, for example, the battery can be arranged at the bottom of the mounting bracket 500, and particularly can be arranged between the bottom of the mounting bracket 500 and the motor bracket. Alternatively, the mounting bracket 500 may be mounted on a side facing away from the electronic control board 120.

The flight assembly 200 of the unmanned aerial vehicle can also be driven by oil, the engine 210 provides power for the unmanned aerial vehicle by using fuel, the unmanned aerial vehicle further comprises an oil tank, and the engine 210 further drives the propeller 220 to rotate, so that the unmanned aerial vehicle can fly. The oil tank may be disposed on the mounting bracket 500, for example, the oil tank may be disposed at the bottom of the mounting bracket 500, and particularly, may be disposed between the bottom of the mounting bracket 500 and the motor bracket.

The engine 210 may be fixedly mounted on the mounting bracket 500 by screws, buckles, etc., and the engine 210 and the electric control board 120 may be electrically connected by pluggable connection through an electrical connector.

The propellers 220 comprise two or more, for example four, six, eight, etc., each propeller 220 comprising at least one rotor. Each propeller 220 may also include a pair of rotors facing each other. Of course, in other embodiments, propeller 220 may include more than two rotors. The propeller 220 may be made of a non-conductive material, such as plastic, carbon fiber. When the drone is in operation, each propeller 220 rotates about an axis of rotation. The propellers 220 can achieve the unmanned aerial vehicle to ascend vertically, and the lifting force can be changed by changing the rotating speed of the propellers 220, so that the gesture and the position of the unmanned aerial vehicle are changed. The propellers 220 are symmetrically arranged, the rotation directions of the two symmetrically arranged propellers 220 can be opposite to each other so as to offset the moment generated by the rotation of the single propellers 220, and the flying gesture and speed of the unmanned aerial vehicle can be adjusted by adjusting the rotation speed of each propeller 220.

Referring to fig. 2, in an embodiment, the flight assembly 200 further includes:

a propeller support 230, wherein the propeller support 230 includes a plurality of support arms 231, and each support arm 231 is correspondingly provided with a propeller 220;

a protective housing 240 engaged with the propeller support 230; wherein,,

the middle parts of the propeller support 230 and the protective housing 240 are also provided with a receiving through hole, and the engine 210 is fixed on the mounting bracket 500 through the receiving through hole.

In this embodiment, the propeller support 230 is disposed in a ring shape, the ring-shaped support includes an inner ring frame and an outer ring frame, an arc-shaped propeller support 230 is formed between the inner ring frame, the outer ring frame and the support arm 231 of the propeller support 230, and the engine 210 is mounted in the middle of the propeller support 230 and the protection housing 240

The support arm 231 uses the engine 210 as the center, extends to all around to connect in inner ring frame and outer ring frame, can set up symmetrically between each support arm 231, be provided with a plurality of strengthening ribs between every support arm 231 and the ring support, can fix two adjacent support arms 231 through the strengthening rib, in order to improve the stability when flight subassembly 200 rotates, prevent because the resistance of wind is great when rotating leads to flight subassembly 200 to receive the damage, can improve the intensity of screw 220 through the strengthening rib. The propeller 220 may be disposed at the end of the support arm 231, and the motor 210 drives the propeller 220 to rotate through the support arm 231.

The protection shell 240 is buckled with the propeller support frame 230, and the propeller 220 is accommodated in the protection shell, so that the propeller 220 is surrounded, the phenomenon that the propeller 220 causes great harm to the aircraft and personal safety when the unmanned aerial vehicle falls off at high altitude or collides at high speed can be avoided, and the object is prevented from being crashed out of control in the flying process. The protective housing 240 and the propeller support 230 may be made of a light material such as plastic to provide weight-reduction design for the unmanned aerial vehicle. In order not to affect heat dissipation of the propeller 220, to enhance the shielding property of the protective cover of the propeller 220 and to improve the protection to the human body, the protective housing 240 may be provided in a grid. The protection housing 240 is disposed at the lower portion of the unmanned aerial vehicle body 100, and can support the unmanned aerial vehicle body, i.e. can be used as a landing gear of the unmanned aerial vehicle that can be supported on the ground when the unmanned aerial vehicle stops.

It will be appreciated that the mounting bracket 500 of the unmanned aerial vehicle body 100 is disposed in the middle of the unmanned aerial vehicle, the propeller 220 is disposed on the peripheral side of the propeller support 230 in the horizontal direction, the antenna assembly 300 is disposed on the unmanned aerial vehicle body 100 in the vertical direction, the antenna assembly 300 and the propeller 220 are respectively fixed by the support bracket, the propeller 220 is disposed at the end of the horizontal direction, and the antenna assembly 300 is disposed at the end of the vertical direction of the unmanned aerial vehicle. So set up, be favorable to realizing unmanned aerial vehicle's gravity balance, guarantee unmanned aerial vehicle operational reliability, can be on spatial position simultaneously, increase the space distance between the two to make antenna assembly 300 and screw 220 both keep away from as far as possible when the installation, with guarantee that the antenna can adapt to unmanned aerial vehicle's operating condition, do not receive the interference of screw 220 flight state, do not influence unmanned aerial vehicle's antenna performance.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. The utility model provides an electrically controlled device is applied to among the unmanned aerial vehicle, unmanned aerial vehicle includes flight subassembly, its characterized in that, electrically controlled device includes:

the shell is internally provided with an accommodating cavity;

the antenna component is arranged on the inner side wall of the shell and/or the electric control plate and is far away from the flight component; wherein,,

the antenna assembly comprises a first antenna unit and a second antenna unit, wherein the first antenna unit and the second antenna unit are arranged in 180-degree rotational symmetry in the width direction of the shell.

2. The electronic control of claim 1, wherein the drone further comprises an electrical connector;

3. The electrical control device of claim 2, wherein the electrical connector comprises:

the fixed base is fixed on the electric control board;

4. The electrical control device of claim 3, wherein the electrical connector further comprises:

5. The electrical control device of claim 4, wherein the self-locking clasp head comprises:

and the base buckling part is used for clamping and fixing the fixed base.

6. The electronic control according to any one of claims 1 to 5, wherein when the antenna assembly is provided on an inner side wall of the housing, the first antenna unit and the second antenna unit are provided at both ends in a width direction of the housing;

when the antenna assembly is arranged on the electric control board, the first antenna unit and the second antenna unit are respectively arranged at two ends of the electric control board in the width direction.

7. The electronic control device of claim 6, wherein the electronic control device comprises:

the camera is arranged on the electric control plate and is far away from one end of the flight assembly.

8. An unmanned aerial vehicle, characterized in that the unmanned aerial vehicle comprises:

a mounting bracket;

the flying assembly is fixedly arranged at one end of the mounting bracket; and an electronic control device as claimed in any one of claims 1 to 7;

9. The drone of claim 8, wherein the flight assembly comprises:

a plurality of propellers disposed around the engine.