WO2023051463A1

WO2023051463A1 - Unmanned aerial vehicle

Info

Publication number: WO2023051463A1
Application number: PCT/CN2022/121361
Authority: WO
Inventors: 黄昶; 廖岳龙
Original assignee: 深圳市道通智能航空技术股份有限公司
Priority date: 2021-09-28
Filing date: 2022-09-26
Publication date: 2023-04-06
Also published as: CN216185986U

Abstract

Embodiments of the utility model relate to the technical field of unmanned aerial vehicles, and in particular, disclosed is an unmanned aerial vehicle. The unmanned aerial vehicle comprises a fuselage, comprising an upper housing and a heat-conducting bottom cover, the heat-conducting bottom cover being fitted to the upper housing, the heat-conducting bottom cover and the upper housing jointly defining an accommodating cavity, the heat-conducting bottom cover being provided with a first air inlet and an air outlet, both the first air inlet and the air outlet being communicated with the accommodating cavity, and the first air inlet, the accommodating cavity, and the air outlet jointly forming a heat dissipation channel; a functional device, disposed in the accommodating cavity, and the functional device being in contact with the heat-conducting bottom cover; and a fan, disposed in the heat dissipation channel, and the fan being configured to suction air outside into the heat dissipation channel from the first air inlet and then output the air from the air outlet. In this way, the heat generated by the functional device is passively dissipated by means of the heat-conducting bottom cover; moreover, the fan drives airflow to pass through the heat dissipation channel to increase efficiency of heat exchange between the heat-conducting bottom cover and the natural airflow to realize active heat dissipation, thereby improving the heat dissipation efficiency of the unmanned aerial vehicle and improving use performance.

Description

an unmanned aerial vehicle

This application claims the priority of the Chinese patent application with the application number 2021223853729 and the application title "An Unmanned Aerial Vehicle" submitted to the China Patent Office on September 28, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The embodiment of the utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle.

Background technique

Unmanned aerial vehicle is a new type of mechanical equipment in rapid development. It has the advantages of small size, light weight, high safety, flexible maneuverability, fast response, unmanned, and low operation requirements. It can be widely used in aerial photography, Film and television, monitoring, search and rescue, resource exploration and other fields.

With the development of electronic technology, the degree of integration of chips is getting higher and higher, the size of chips is getting smaller and smaller, and the heat flux density of chips is also getting higher and higher. However, in the existing unmanned aerial vehicle design scheme, the narrow space structure inside the unmanned aerial vehicle makes it difficult for the heat generated by the control module, drive module, image processing module and other functional devices to dissipate in time. The temperature is a key factor affecting the reliability of the chip. As the temperature continues to rise, the performance of the chip will be reduced, and it may even cause the chip to fail.

In the process of realizing the embodiment of the utility model, the inventors found that: at present, the unmanned aerial vehicle mainly dissipates heat to the functional devices in the unmanned aerial vehicle by installing a heat dissipation structure inside the fuselage, but the existing heat dissipation structure usually has the first An air inlet and an air outlet have poor heat dissipation efficiency and cannot meet the needs of unmanned aerial vehicles.

Utility model content

The technical problem mainly solved by the embodiment of the utility model is to provide an unmanned aerial vehicle, which can improve the heat dissipation efficiency.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide an unmanned aerial vehicle, which includes: a fuselage, functional devices and a fan. The fuselage includes an upper shell and a heat-conducting bottom cover, the heat-conducting bottom cover is arranged on the upper shell, the heat-conducting bottom cover and the upper shell together enclose a storage cavity, and the heat-conducting bottom cover is provided with a first inlet The air outlet and the air outlet, the first air inlet and the air outlet are all in communication with the storage chamber, and the first air inlet, the storage chamber and the air outlet jointly form a heat dissipation channel. The functional device is arranged in the receiving cavity, and the functional device is in contact with the heat conduction bottom cover. The fan is arranged in the heat dissipation passage, and the fan is used to suck the outside air into the heat dissipation passage from the first air inlet, and then output it from the air outlet.

Optionally, a surface of the heat-conducting bottom cover facing the storage cavity is recessed toward a direction away from the storage cavity, so as to form a groove on a surface of the heat-conducting bottom cover facing the storage cavity. A first boss is formed on the other surface of the bottom cover away from the storage chamber, the fan is fixed in the groove, and the first air inlet and outlet are both arranged on the first boss.

Optionally, heat dissipation fins extend from the other surface of the heat conduction bottom cover away from the receiving cavity;

The first air inlet is arranged on the first surface of the first boss, the air outlet is arranged on the second surface of the first boss, and the air outlet faces the cooling fins.

Optionally, the heat dissipation fins include several heat dissipation fins, the several heat dissipation fins are arranged at intervals, and there is a gap between two adjacent heat dissipation fins, and the gap faces the air outlet.

Optionally, there are multiple first air inlets, and the plurality of first air inlets are arranged in parallel and spaced apart on the first surface of the first boss.

Optionally, a second boss extends from a surface of the heat conduction bottom cover facing the receiving cavity, and the second boss abuts against the functional device.

Optionally, the UAV further includes a heat conduction element, the heat conduction element is disposed between the second boss and the functional device, and the heat conduction element is attached to the second boss and the functional device respectively.

Optionally, there are multiple second bosses, functional devices and heat conducting elements, and one heat conducting element is arranged between a second boss and a functional device.

Optionally, the heat conduction bottom cover is further provided with several second air inlets, and the several second air inlets are respectively located on the periphery of the first boss.

Optionally, the heat conduction bottom cover is made of metal.

The beneficial effect of the embodiment of the utility model is: the embodiment of the utility model is an unmanned aerial vehicle, and the unmanned aerial vehicle includes: a fuselage, functional devices and a fan. The fuselage includes a heat-conducting bottom cover, the heat-conducting bottom cover is provided with a first air inlet and an air outlet, and the fuselage is provided with a storage chamber, the first air inlet and the air outlet are both communicated with the storage chamber, and the first An air inlet, the accommodation cavity and the air outlet jointly form a heat dissipation channel. The functional device is arranged in the storage cavity, and the functional device is used to realize the unmanned flight function of the unmanned aerial vehicle, and the functional device is in contact with the heat conduction bottom cover, so as to realize heat conduction to the functional device. A fan is arranged in the heat dissipation passage, and the fan is used to suck the outside air into the heat dissipation passage from the first air inlet, and then output it from the air outlet. Through the above method, on the one hand, the heat emitted by the functional device is exported through the heat-conducting bottom cover, and on the other hand, it is driven by the fan to flow out through the heat dissipation channel, which can improve the heat dissipation efficiency of the UAV and improve the performance of the functional device in the UAV. .

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the perspective view of a kind of unmanned aerial vehicle of the utility model embodiment;

Fig. 2 is an exploded diagram of a kind of unmanned aerial vehicle of the utility model embodiment;

Fig. 3 is a schematic diagram of another perspective of Fig. 1;

FIG. 4 is a schematic view from another perspective of FIG. 2 .

The reference numerals in the specific embodiment are as follows:

11	无人飞行器 UAV	224224	第一凸台 first boss
1010	功能器件 Functional device	22412241	第一表面 first surface
2020	机身 body	22422242	第二表面second surface
21twenty one	上壳 upper shell	225225	第二进风口Second air inlet
22twenty two	导热底盖 Thermal bottom cover	226226	第二凸台second boss

221221	第一进风口first air inlet	23twenty three	收容腔 containment cavity
222222	出风口 air outlet	3030	散热鳍cooling fins
223223	凹槽groove	the	the

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is said to be "fixed" to another element, it may be directly on the other element, or there may be one or more intervening elements therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions are used in this specification for the purpose of description only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the utility model in this specification are only for the purpose of describing specific embodiments, and are not used to limit the utility model. The term "and/or" used in this specification includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 and FIG. 2 , the unmanned aerial vehicle 1 provided by the embodiment of the present invention includes a functional device 10 , a fuselage 20 , a fan (not shown) and a cooling fin 30 . Both the functional device 10 and the fan are disposed in the fuselage 20, wherein the functional device 10 is used to realize the unmanned flight function of the unmanned aerial vehicle 1, and the functional device 10 includes heating elements such as a control module, a drive module, and an image processing module. The heat dissipated by the functional device 10 is relatively high, which needs to be dissipated. The fan is arranged near the functional device 10 to accelerate the flow of gas near the functional device 10 to realize heat dissipation of the functional device 10 . In addition, the heat emitted by the functional device 10 is conducted through the heat dissipation fins 30, and the heat dissipation fins 30 are arranged outside the body 20. After the heat dissipation fins 30 absorb the heat, the airflow output by the fan dissipates the heat through the heat dissipation fins 30 in the form of convection. The cooling effect can be further improved by active cooling.

For the above fan, the fan is electrically connected to the functional device 10, and the functional device 10 is used to control the fan and provide power for the fan.

For the above-mentioned body 20 , please refer to FIG. 2 , the body 20 is used for accommodating the above-mentioned functional device 10 and the fan and conducting heat conduction to the functional device 10 . The body 20 includes an upper case 21 and a heat conduction bottom cover 22 , the heat conduction bottom cover 22 covers the upper case 21 , and the heat conduction bottom cover 22 is in contact with the functional device 10 .

As for the heat conduction bottom cover 22 , please refer to FIG. 3 and FIG. 4 , the heat conduction bottom cover 22 and the upper case 21 together enclose a receiving chamber 23 , and the receiving chamber 23 accommodates the above-mentioned functional device 10 and the fan. The heat conduction bottom cover 22 is provided with a first air inlet 221 and an air outlet 222, the first air inlet 221 and the air outlet 222 are connected to the storage chamber 23, and the first air inlet 221, the storage chamber 23 and the air outlet 222 jointly form a heat dissipation aisle. The heat dissipation channel communicates the functional device 10 with the outside world, and the outside air enters the receiving cavity 23 through the first air inlet 221 to contact the functional device 10 , and then drives the heat emitted by the functional device 10 to flow out through the air outlet 222 . Specifically, the fan is arranged in the heat dissipation passage, and the fan is used to suck the outside air into the heat dissipation passage from the first air inlet 221, and then output it from the air outlet 222. speed.

In some embodiments, the heat-conducting bottom cover 22 is made of metal, specifically a heat-conducting metal material such as magnesium alloy and the like.

In some embodiments, a surface of the heat conduction bottom cover 22 facing the storage cavity 23 is recessed toward a direction away from the storage cavity 23, so as to form a groove 223 on a surface of the heat conduction bottom cover 22 facing the storage cavity 23, and the fan is fixed in the recess. Inside the groove 223.

For the above-mentioned first air inlet 221 and air outlet 222, a first boss 224 is formed on the other surface of the heat conduction bottom cover 22 away from the storage cavity 23, and the first air inlet 221 and the air outlet 222 are both arranged on the first Boss 224. Specifically, the first air inlet 221 is disposed on the first surface 2241 of the first boss 224 , and the air outlet 222 is disposed on the second surface 2242 of the first boss 224 . The first boss 224 protrudes from the heat-conducting bottom cover 22 , which can facilitate outside air to enter and exit the fuselage 20 through the first air inlet 221 and the air outlet 222 .

It can be understood that there are multiple first air inlets 221 , and the plurality of first air inlets 221 are arranged on the first surface 2241 of the first boss 224 in parallel and at intervals. The number and area of the first air inlet 221 are adapted to the diameter of the fan.

It can be understood that the heat conduction bottom cover 22 is also provided with a number of second air inlets 225, and the number of second air inlets 225 are respectively located on the periphery of the first boss 224 to form a plurality of heat dissipation channels, which can ensure that the outside air flows through the functional devices 10, thereby further improving the heat dissipation effect of the unmanned aerial vehicle 1.

In some embodiments, a second boss 226 extends from a surface of the heat conduction bottom cover 22 facing the accommodating cavity 23 , the second boss 226 abuts against the functional device 10 , and the second boss 226 The heat emitted by the functional device 10 is conducted to the heat conduction bottom cover 22 , so as to conduct heat to the functional device 10 and further improve the heat dissipation effect of the UAV 1 .

For the above-mentioned second boss 226, in some embodiments, the number of the second boss 226, the functional device 10 and the heat conduction element are multiple, and a heat conduction element is arranged between a second boss 226 and a functional device 10 , thus increasing the heat conduction area.

It can be understood that the UAV 1 also includes a heat conduction element (not shown), the heat conduction element is arranged between the second boss 226 and the functional device 10, and the heat conduction element is attached to the second boss 226 and the functional device 10 respectively , this setting can further improve the heat dissipation efficiency.

In some embodiments, the heat conduction element can be made of heat conduction material such as heat conduction mud or heat conduction silicone grease, and the heat conduction element is not limited to this material, as long as it can realize heat conduction to the functional device 10 .

For the above-mentioned heat dissipation fins 30 , the heat dissipation fins 30 are obtained by extending from the other surface of the heat conduction bottom cover 22 away from the receiving chamber 23 , and the heat dissipation fins 30 are disposed toward the air outlet 222 . When the gas is blown out by the fan through the air outlet 222, the gas drives the heat emitted by the functional device 10 to blow to the cooling fins 30. On the one hand, the cooling fins 30 absorb a certain amount of heat for passive cooling; Through the heat dissipation fins 30 , the heat exchange efficiency is accelerated, thereby improving the heat dissipation effect of the UAV 1 .

In some embodiments, the cooling fins 30 include several cooling fins (not shown), wherein the number of cooling fins matches the area of the air outlet 222 . A plurality of cooling fins are arranged at intervals, and there is a gap between two adjacent cooling fins, and the gap faces the air outlet 222 , the plurality of cooling fins can further increase the surface area of the cooling fin 30 and improve the heat dissipation performance.

In some embodiments, the heat dissipation fins 30 are designed in a streamlined shape, which is convenient for the gas to drive heat through, thereby improving the heat dissipation effect.

In some embodiments, the height of the heat dissipation fins 30 is lower than that of the air outlet 222 to facilitate heat dissipation. Wherein, the height of the heat dissipation fin 30 is the distance between the farthest point of the heat dissipation fin 30 away from the heat conduction bottom cover 22 and the heat conduction bottom cover 22, and the height of the air outlet 222 is the distance between the farthest point of the air outlet 222 away from the heat conduction bottom cover 22 and the heat conduction bottom cover 22. 22 distance.

In some other embodiments, the UAV 1 further includes a driving assembly (not shown), which is connected to the control module and the cooling fins 30 respectively, and the driving assembly is used to drive the cooling fins 30 to swing. Specifically, the drive assembly includes a motor and a screw. The heat conduction bottom cover 22 is provided with a through hole. One end of the screw is connected to the output shaft of the electrode, and the other end of the screw is connected to the heat dissipation fin 30 through the through hole. When the motor starts, The motor drives the screw mandrel to rotate, and the rotation of the screw mandrel drives the cooling fins 30 to swing.

An unmanned aerial vehicle 1 provided by an embodiment of the utility model, the unmanned aerial vehicle 1 includes: a fuselage 20 , functional devices 10 and a fan. The fuselage 20 includes a heat conduction bottom cover 22, the heat conduction bottom cover 22 is provided with a first air inlet 221 and an air outlet 222, and the fuselage 20 is provided with a receiving cavity 23, and the first air inlet 221 and the air outlet 222 are connected with each other. The storage cavity 23 is connected, and the first air inlet 221 , the storage cavity 23 and the air outlet 222 jointly form a heat dissipation channel. The functional device 10 is arranged in the accommodation cavity 23, the functional device 10 is used to realize the unmanned flight function of the unmanned aerial vehicle 1, and the functional device 10 is in contact with the heat conduction bottom cover 22, so as to achieve the function of the functional device 10 heat conduction. The fan is arranged in the heat dissipation passage, and the fan is used to suck the outside air into the heat dissipation passage from the first air inlet 221 and output it from the air outlet 222 . Through the above method, the heat emitted by the functional device 10 is exported through the heat-conducting bottom cover 22 on the one hand, and on the other hand, it is driven by the fan to flow out quickly through the heat dissipation channel, which can improve the heat dissipation efficiency of the unmanned aerial vehicle 1 and improve the internal functions of the unmanned aerial vehicle 1. Performance of device 10.

It should be noted that the preferred embodiments of the utility model are provided in the description of the utility model and the accompanying drawings, but the utility model can be realized in many different forms, and is not limited to the one described in the specification Examples, these examples are not used as additional limitations to the content of the present utility model, and the purpose of providing these examples is to make the understanding of the disclosure of the present utility model more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; furthermore, those of ordinary skill in the art can improve or Transformation, and all these improvements and transformations should belong to the protection scope of the appended claims of the present utility model.

Claims

An unmanned aerial vehicle is characterized in that it comprises:

The fuselage includes an upper shell and a heat-conducting bottom cover, the heat-conducting bottom cover is set on the upper shell, the heat-conducting bottom cover and the upper shell jointly enclose a storage cavity, and the heat-conducting bottom cover is provided with a first air inlet and an air outlet, the first air inlet and the air outlet are both in communication with the storage chamber, and the first air inlet, the storage chamber and the air outlet jointly form a heat dissipation channel;

A functional device is arranged in the receiving cavity, and the functional device is in contact with the heat-conducting bottom cover;

A fan is arranged in the heat dissipation passage, and the fan is used to suck the outside air into the heat dissipation passage from the first air inlet, and then output it from the air outlet.
The unmanned aerial vehicle according to claim 1, characterized in that,

A surface of the heat conduction bottom cover facing the storage cavity is recessed in a direction away from the storage cavity to form a groove on a surface of the heat conduction bottom cover facing the storage cavity. The other surface of the accommodating cavity forms a first boss, the fan is fixed in the groove, and the first air inlet and outlet are both arranged on the first boss.
The unmanned aerial vehicle according to claim 2, characterized in that,

Radiating fins extend from the other surface of the heat conducting bottom cover away from the receiving cavity;

The first air inlet is arranged on the first surface of the first boss, the air outlet is arranged on the second surface of the first boss, and the air outlet faces the cooling fins.
The unmanned aerial vehicle according to claim 3, wherein,

The heat dissipation fins include several heat dissipation fins, the plurality of heat dissipation fins are arranged at intervals, and there is a gap between two adjacent heat dissipation fins, and the gap faces the air outlet.
The unmanned aerial vehicle according to claim 3, wherein,

The number of the first air inlets is multiple, and the plurality of first air inlets are arranged in parallel and spaced apart on the first surface of the first boss.
The unmanned aerial vehicle according to claim 5, wherein,

A second boss extends from a surface of the heat conduction bottom cover facing the accommodating cavity, and the second boss abuts against the functional device.
The unmanned aerial vehicle according to claim 6, wherein,

The unmanned aerial vehicle further includes a heat conduction element, the heat conduction element is disposed between the second boss and the functional device, and the heat conduction element is attached to the second boss and the functional device respectively.
The unmanned aerial vehicle according to claim 7, characterized in that, the number of the second boss, the functional device and the heat conduction member is multiple, and the heat conduction member is arranged on the second boss and a heat conduction member. between the functional devices.
According to the unmanned aerial vehicle described in any one of claims 2-8, it is characterized in that,

The heat conduction bottom cover is also provided with a plurality of second air inlets, and the plurality of second air inlets are respectively located on the periphery of the first boss.
The unmanned aerial vehicle according to any one of claims 2-8, wherein the heat-conducting bottom cover is made of metal.