An unmanned aerial vehicle

Abstract

The embodiment of the present application relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, a connecting rod, a rotor motor, a supporting leg, an antenna module and a connecting piece, the rotor motor and the supporting leg are arranged at one end of the connecting rod away from the unmanned aerial vehicle body, the antenna module comprises a substrate and a first radiation assembly, the substrate is accommodated in a mounting cavity of the supporting leg, the substrate is provided with a first feeding portion and a second feeding portion, the first radiation assembly comprises a first radiation arm and a second radiation arm, one end of the first radiation arm is electrically connected with the first feeding portion, and one end of the second radiation arm is electrically connected with the second feeding portion; one end of the connecting piece is electrically connected with the rotor motor, and the other end is electrically connected with the second radiation arm, and the first radiation arm, the second radiation arm, the connecting piece and the rotor motor are used for radiating signals of a first frequency band together. Through the above manner, the antenna module in the embodiment of the present application can radiate low-frequency signals, and is beneficial to expanding the application range of the unmanned aerial vehicle.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV. Background Technology

[0002] Please see Figure 1 The existing drone 100' typically includes a drone body 1', multiple connecting rods 2', multiple rotor motors 3', and multiple support feet 4'. One end of the multiple connecting rods 2' is connected to the drone body 1'. One rotor motor 3' is located at the end of one connecting rod 2' away from the drone body 1'. One support foot 4' is located at the end of one connecting rod 2' away from the drone body 1'. The support foot 4' is used to support the drone body 1', and the rotor motor 3' is used to drive the drone 100' to fly.

[0003] Since the drone body 1' contains a variety of electronic components, in order to reduce the interference between the electronic components inside the drone body 1' and the antenna, the antenna is usually placed at the support foot 4' to increase the distance between the antenna and the drone body 1', thereby reducing the interference between the antenna and the electronic components inside the drone body 1'.

[0004] However, due to the limited internal space of the support foot 4', the antenna's radiating arm is relatively short, which makes it difficult for the antenna to radiate low-frequency signals (such as signals with a frequency less than 1 GHz), making it difficult for the drone to transmit signals in certain scenarios. Utility Model Content

[0005] The main technical problem addressed by this application is to provide a drone that can improve the ability of its antenna module to radiate low-frequency signals.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: providing a drone, including a drone body, a connecting rod, a rotor motor, a support foot, an antenna module, and a connector. One end of the connecting rod is disposed in the drone body; the rotor motor is disposed in the end of the connecting rod away from the drone body; the support foot is disposed in the end of the connecting rod away from the drone body, the support foot has a mounting cavity, and the rotor motor is at least partially exposed in the mounting cavity. The support foot and the rotor motor are respectively located on opposite sides of the connecting rod; the antenna module includes a substrate and a first radiating component, the substrate is housed in the mounting cavity, and the substrate is provided with mutually spaced... The first power supply unit and the second power supply unit; the first radiation assembly includes a first radiation arm and a second radiation arm; one end of the first radiation arm is electrically connected to the first power supply unit, and the other end of the first radiation arm extends away from the second power supply unit; one end of the second radiation arm is electrically connected to the second power supply unit, and the other end of the second power supply unit extends away from the first power supply unit; the first radiation arm and the second radiation arm are used together to radiate a first frequency band signal; one end of the connector is electrically connected to the rotor motor, and the other end of the connector is electrically connected to the second radiation arm; the first radiation arm, the second radiation arm, the connector, and the rotor motor are used together to radiate a first frequency band signal.

[0007] In some embodiments, the connector extends in a bent manner from the end where it is connected to the rotor motor to the end where it is connected to the second radial arm.

[0008] In some embodiments, the substrate is provided with a first surface and a second surface opposite to each other, the first radiating component is provided on the first surface, the second surface is provided with a first contact portion, the first contact portion is connected to the end of the second radiating arm away from the second feed portion, and the connector abuts against the first contact portion.

[0009] In some embodiments, the substrate is provided with a snap hole that penetrates the substrate; the connector is provided with a snap-fit ​​portion that snaps into the snap hole.

[0010] In some embodiments, the first radiating component further includes an extended metal member that is snapped into the substrate and electrically connected to one end of the first radiating arm away from the first feed portion. The first radiating arm and the extended metal member are used together to radiate a first frequency band signal.

[0011] In some embodiments, the extended metal member includes a connecting segment, a first extending segment, and a second extending segment. The connecting segment is disposed on the substrate and electrically connected to the first radiating arm. One end of the first extending segment is connected to one end of the connecting segment, and one end of the second extending segment is connected to the other end of the connecting segment. The first extending segment and the second extending segment are located on opposite sides of the substrate.

[0012] In some embodiments, the first radiating component further includes a second power receiving portion, which is connected to one end of the first radiating arm away from the first power feeding portion, and the connecting segment is electrically connected to the second power receiving portion.

[0013] In some embodiments, the antenna module further includes a second radiating component, which includes a third radiating arm and a fourth radiating arm. One end of the third radiating arm is connected to the end of the first radiating arm away from the first feed section, and one end of the fourth radiating arm is electrically connected to the second feed section. The first radiating arm, the third radiating arm, and the fourth radiating arm are used together to radiate a second frequency band signal, and the first frequency band and the second frequency band are different.

[0014] In some embodiments, when viewed in a direction perpendicular to the first surface, the fourth radiating arm extends at least partially along the edge of the substrate.

[0015] In some embodiments, the support foot is provided with a slot, the slot is located in the mounting cavity, and the substrate is engaged with the slot.

[0016] The beneficial effects of this application embodiment are as follows: Unlike the prior art, in this application embodiment, by electrically connecting one end of the connector to the rotor motor and the other end of the connector to the second radiating arm, the metal parts in the rotor motor and the connector can serve as the radiating structure for the first frequency band signal. Thus, without increasing the length of the second radiating arm, the first radiating component can radiate low-frequency signals, thereby expanding the application scenarios of the UAV. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a structural diagram of a drone in the existing technology; Figure 2 This is a schematic diagram of the structure of the UAV provided in the embodiments of this application; Figure 3 This is an exploded structural diagram of the connecting rod, rotor motor, antenna module and support foot provided in the embodiments of this application; Figure 4 This is a schematic diagram of the support foot provided in the embodiments of this application; Figure 5 This is a partial structural schematic diagram of the rotor motor, connector, and antenna module provided in the embodiments of this application; Figure 6 This is a schematic diagram of the antenna module provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the antenna module provided in the embodiments of this application when it includes the third extension section; Figure 8 This is a schematic diagram of the structure of the antenna module provided in the embodiments of this application when it includes the fourth extension section; Figure 9 This is a diagram of the S(Scatter) parameters of the antenna module provided in the embodiments of this application; Figure 10 This is the radiation pattern of the first frequency band signal of the antenna module provided in the embodiments of this application; Figure 11 This is the radiation pattern of the second frequency band signal of the antenna module provided in the embodiments of this application; Figure 12 This is the radiation pattern of the third frequency band signal of the antenna module provided in the embodiments of this application; Figure 13 This is the radiation pattern of the fourth frequency band signal of the antenna module provided in the embodiments of this application.

[0019] Attached icon number 100. Unmanned Aerial Vehicle (UAV); 1. UAV body; 2. Connecting rod; 3. Rotor motor; 4. Support feet; 41. Mounting cavity; 42. Slot; 5. Antenna module; 51. Substrate; 511. First surface; 5111. First feed section; 5112. Second feed section; 512. Second surface; 5121. First power connection section; 513. Slot; 52. First radiating component; 521. First radiating arm; 522. Second radiating arm; 5221. Expansion section; 523. Second power connection section; 53. Extended metal part; 531. Connecting section; 532. First extension section; 533. Second extension section; 534. Third extension section; 535. Fourth extension section; 54. Second radiating component; 541. Third radiating arm; 542. Fourth radiating arm; 55. Third radiating component; 551. Fifth radiating arm; 552. Sixth radiating arm; 56. Fourth radiating component; 561. Seventh radiating arm; 562. Eighth radiating arm; 57. First carrier; 58. Second carrier; 6. Connecting parts; 61. Snap-fit ​​parts; 7. Coaxial line. Detailed Implementation

[0020] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0023] As is well known, low-frequency signals have strong penetrating and diffraction capabilities. In certain scenarios, such as densely built-up urban areas and forested mountainous areas, low-frequency signals can bypass or penetrate buildings. Therefore, when flying in densely built-up urban areas or forested mountainous areas, drones need to transmit signals using low-frequency signals.

[0024] Please see Figure 1 The existing drone 100' typically includes a drone body 1', multiple connecting rods 2', multiple rotor motors 3', and multiple support feet 4'. One end of the multiple connecting rods 2' is connected to the drone body 1'. One rotor motor 3' is located at the end of one connecting rod 2' away from the drone body 1'. One support foot 4' is located at the end of one connecting rod 2' away from the drone body 1'. The support foot 4' is used to support the drone body 1', and the rotor motor 3' is used to drive the drone 100' to fly.

[0025] Since the drone body 1' contains a variety of electronic components, in order to reduce the interference between the electronic components inside the drone body 1' and the antenna, the antenna is usually placed at the support foot 4' to increase the distance between the antenna and the drone body 1', thereby reducing the interference between the antenna and the electronic components inside the drone body 1'.

[0026] The lower the frequency of the signal radiated by the antenna, the longer the antenna's radiating arm. Due to the limited internal space of the support foot 4', the antenna's radiating arm is relatively short, which makes it difficult for the antenna to radiate low-frequency signals. This makes it difficult for drones to transmit signals in densely built-up urban areas, forests, and mountainous regions, thus limiting the application scenarios of drones.

[0027] To address the aforementioned issues, this application electrically connects the second radiating arm to the rotor motor via a connector, enabling the connector and rotor motor to function as a structure for radiating signals. This allows the antenna module's ability to radiate low-frequency signals to be improved without extending the length of the second radiating arm.

[0028] The specific structure and function of this application are described below.

[0029] Please see Figure 2 The drone 100 includes a drone body 1, a connecting rod 2, a rotor motor 3, and support feet 4. One end of the connecting rod 2 is attached to the drone body 1, and the rotor motor 3 is located at the end of the connecting rod 2 away from the drone body 1. The rotor motor 3 provides the power required for the drone 100 to fly when it rotates. The support feet 4 are located at the end of the connecting rod 2 away from the drone body 1. The support feet 4 and the rotor motor 3 are located on opposite sides of the connecting rod 2, with the support feet 4 positioned below the rotor motor 3. The support feet 4 provide support for the drone 100 when it is parked.

[0030] In some embodiments, please refer to Figure 3 and Figure 4 The drone 100 also includes an antenna module 5, a support foot 4 with a mounting cavity 41, a rotor motor 3 that is at least partially exposed in the mounting cavity 41, and an antenna module 5 housed in the mounting cavity 41. The antenna module 5 is used to radiate signals.

[0031] For antenna module 5 mentioned above, please refer to... Figure 4 , Figure 5 and Figure 6The antenna module 5 includes a substrate 51 and a first radiating component 52. The substrate 51 is housed within a mounting cavity 41 and has a first feed section 5111 and a second feed section 5112 spaced apart from each other. The first radiating component 52 includes a first radiating arm 521 and a second radiating arm 522. One end of the first radiating arm 521 is electrically connected to the first feed section 5111, and the other end of the first radiating arm 521 extends in a direction away from the second feed section 5112. One end of the second radiating arm 522 is electrically connected to the second feed section 5112, and the other end of the second radiating arm 522 extends in a direction away from the first feed section 5111. The UAV 100 also includes a connector 6. One end of the connector 6 is electrically connected to the rotor motor 3, and the other end of the connector 6 is connected to the end of the second radiating arm 522 away from the second power supply section 5112. That is, the rotor motor 3 is electrically connected to the second radiating arm 522 through the connector 6. The first radiating arm 521, the second radiating arm 522, the connector 6, and the rotor motor 3 are used together to radiate a first frequency band signal. In this embodiment, by electrically connecting one end of the connector 6 to the rotor motor 3 and the other end of the connector 6 to the second radiating arm 522, the metal components in the rotor motor 3 and the connector 6 can serve as a radiating structure for the first frequency band signal. This allows the first radiating component 52 to radiate low-frequency signals without increasing the length of the second radiating arm 522. This is beneficial for the UAV 100 to transmit signals via the first frequency band in densely built-up urban areas, forests, and mountainous regions, thus expanding the application scenarios of the UAV 100.

[0032] In some embodiments, the first frequency band is 0.82 GHz to 0.89 GHz.

[0033] It is worth noting that the low-frequency signal in this application refers to a signal with a frequency less than or equal to 1 GHz, that is, the first frequency band signal belongs to the low-frequency signal category.

[0034] In some embodiments, the connector 6 is made of copper, which has good electrical conductivity and helps to reduce the resistance between the second radiating arm 522 and the rotor motor 3.

[0035] In some embodiments, the housing (not labeled) of the rotor motor 3 is made of copper or conductive metal, and one end of the connector 6 contacts the housing of the rotor motor 3, thereby realizing an electrical connection between the connector 6 and the housing of the rotor motor 3 so that the housing of the rotor motor 3 can be used to radiate signals.

[0036] In some embodiments, the connector 6 is bent and extended from the end where it is connected to the rotor motor 3 to the end where it is connected to the second radial arm 522, thereby reducing the space occupied by the connector 6.

[0037] In some embodiments, please refer to Figure 5and Figure 6 The substrate 51 has a first surface 511 and a second surface 512, with the first surface 511 and the second surface 512 facing each other. The first power supply portion 5111 and the second power supply portion 5112 are both disposed on the first surface 511. The second surface 512 has a first contact portion 5121, which is electrically connected to the end of the second radiating arm 522 away from the second power supply portion 5112. The connector 6 abuts against the first contact portion 5121, thereby achieving an electrical connection between the connector 6 and the second radiating arm 522. In this embodiment, by providing the first contact portion 5121, the connector 6 is electrically connected to the first contact portion 5121, facilitating the electrical connection between the connector 6 and the second radiating arm 522.

[0038] In some embodiments, please refer to Figure 5 and Figure 6 An extension portion 5221 is provided at the end of the second radiating arm 522 away from the second feed portion 5112. When viewed along a direction perpendicular to the first surface 511, the projection of the extension portion 5221 at least partially overlaps with the projection of the first contact portion 5121, and the extension portion 5221 is electrically connected to the first contact portion 5121. When viewed along a direction perpendicular to the first surface 511, the width of the first contact portion 5121 is greater than the width of the end of the second radiating arm 522 near the second feed portion 5112, thereby facilitating contact between the connector 6 and the first contact portion 5121, and thus facilitating the electrical connection between the connector 6 and the first contact portion 5121.

[0039] It is worth noting that, not shown in the figure, the substrate 51 has a plurality of through holes (not shown) at the expansion portion 5221. Each through hole extends from the first surface 511 to the second surface 512. Each through hole is filled with a conductive material, such as copper, thereby realizing the electrical connection between the expansion portion 5221 and the first electrical connection portion 5121.

[0040] In some embodiments, the substrate 51 is provided with a locking hole 513, which is located at the expansion portion 5221 and passes through the substrate 51, the first electrical contact portion 5121, and the expansion portion 5221. A locking portion 61 is provided at one end of the connector 6 near the substrate 51, and the locking portion 61 engages with the locking hole 513. This serves two purposes: positioning the connector 6 with the substrate 51 and fixing the connector 6 to the substrate 51.

[0041] In some embodiments, not shown, the snap-fit ​​portion 61 passes through the snap-fit ​​hole 513 and at least partially protrudes from the first surface 511. The portion of the snap-fit ​​portion 61 protruding from the first surface 511 abuts against the expansion portion 5221, thereby improving the stability of the electrical connection between the connector 6 and the second radiating arm 522.

[0042] In some embodiments, the connector 6 is welded and fixed to the first electrical contact part 5121, which helps to improve the stability of the connection between the connector 6 and the first electrical contact part 5121.

[0043] In some embodiments, please refer to Figure 5 and Figure 6 The first radiating component 52 also includes an extended metal part 53, which is snapped into the substrate 51 and electrically connected to the end of the first radiating arm 521 away from the first power supply part 5111, so that the extended metal part 53 and the first radiating arm 521 can jointly radiate the first frequency band signal.

[0044] In some embodiments, the extended metal member 53 includes a connecting segment 531, a first extending segment 532, and a second extending segment 533. The connecting segment 531 is disposed at one end of the substrate 51 and is electrically connected to the end of the first radiating arm 521 away from the first power supply portion 5111. One end of the first extending segment 532 is connected to one end of the connecting segment 531, and one end of the second extending segment 533 is connected to the other end of the connecting segment 531. Along a direction perpendicular to the first surface 511, the first extending segment 532 and the second extending segment 533 are respectively located on both sides of the substrate 51. It is worth noting that since the substrate 51 is housed in the mounting cavity 41 of the support foot 4, the mounting cavity 41 is generally frustum-shaped, and the substrate 51 is usually placed in the middle of the mounting cavity 41. If the entire extended metal part 53 is disposed on one side of the substrate 51, for example, on one side of the first surface 511 of the substrate 51, the extended metal part 53 occupies more space on the side where the first surface 511 of the substrate 51 is located, resulting in wasted space on the side where the second surface 512 of the substrate 51 is located. Therefore, in this embodiment, by disposing the first extension section 532 and the second extension section 533 on both sides of the substrate 51, it is beneficial to make fuller use of the space on both sides of the substrate 51 and reduce space waste.

[0045] In some embodiments, when viewed along a direction perpendicular to the first surface 511, the projections of the first extension 532 and the second extension 533 are both at least partially located within the first surface 511. That is, the first extension 532 extends toward the first feed portion 5111, and the second extension 533 extends toward the first feed portion 5111. This reduces the size of the extension metal part 53 in the direction perpendicular to the first surface 511, which is beneficial for reducing the space occupied by the antenna module.

[0046] In some embodiments, please refer to Figure 7The extended metal part 53 also includes a third extension section 534. One end of the third extension section 534 is connected to the end of the first extension section 532 away from the connecting section 531, and the other end of the third extension section 534 extends towards the connecting section 531 after being bent. In this embodiment, by providing the third extension section 534, it is beneficial to further extend the total length of the radiating arm used to radiate the first frequency band signal, and further improve the ability of the antenna module 5 to radiate the first frequency band signal.

[0047] In some embodiments, the antenna module 5 further includes a first carrier 57, wherein the first extension segment 532 and the third extension segment 534 are both spaced apart from the first surface 511, and the first carrier 57 is disposed between the first extension segment 532 and the first surface 511. The first extension segment 532 and the third extension segment 534 are both supported on the end of the first carrier 57 facing away from the first surface 511. In this embodiment, by using the first carrier 57 to support the first extension segment 532 and the third extension segment 534, the risk of the first extension segment 532 and the third extension segment 534 bending toward the first surface 511 can be reduced.

[0048] In some embodiments, please refer to Figure 8 The extended metal part 53 also includes a fourth extension segment 535. One end of the fourth extension segment 535 is connected to the end of the second extension segment 533 away from the connecting segment 531, and the other end of the fourth extension segment 535 extends towards the connecting segment 531 after being bent. In this embodiment, by providing the fourth extension segment 535, it is beneficial to further extend the total length of the radiating arm used to radiate the first frequency band signal, and further improve the ability of the antenna module 5 to radiate the first frequency band signal.

[0049] In some embodiments, the antenna module 5 further includes a second carrier 58, wherein the second extension segment 533 and the fourth extension segment 535 are both spaced apart from the second surface 512, and the second carrier 58 is disposed between the second extension segment 533 and the second surface 512, with the second extension segment 533 and the fourth extension segment 535 each supported on the end of the second carrier 58 facing away from the second surface 512. In this embodiment, by using the second carrier 58 to support the second extension segment 533 and the fourth extension segment 535, the risk of the second extension segment 533 and the fourth extension segment 535 bending toward the second surface 512 can be reduced.

[0050] In some embodiments, the first radiating component 52 further includes a second contact portion 523, which is connected to the end of the first radiating arm 521 away from the first feed portion 5111. The connecting segment 531 contacts the second contact portion 523 and forms an electrical connection, thereby realizing the electrical connection between the connecting segment 531 and the first radiating arm 521. In this embodiment, by providing the second contact portion 523, the connection between the connecting segment 531 and the first radiating arm 521 can be facilitated.

[0051] In some embodiments, when viewed along a direction perpendicular to the first surface 511, the width of the second contact portion 523 is greater than the width of the first radiating arm 521. This arrangement is beneficial for increasing the contact area between the second contact portion 523 and the connecting segment 531, reducing the resistance between the connecting segment 531 and the second contact portion 523, and facilitating the formation of an electrical connection between the connecting segment 531 and the second contact portion 523.

[0052] In some embodiments, the connecting segment 531 and the second electrical contact part 523 are welded together. Welding is beneficial to improving the stability of the connection between the connecting segment 531 and the second electrical contact part 523.

[0053] In some embodiments, please refer to Figure 6 The antenna module 5 also includes a second radiating component 54, which includes a third radiating arm 541 and a fourth radiating arm 542. One end of the third radiating arm 541 is electrically connected to the end of the first radiating arm 521 away from the first feed section 5111, and the other end of the third radiating arm 541 extends toward the first feed section 5111. One end of the fourth radiating arm 542 is electrically connected to the second feed section 5112. The first radiating arm 521, the third radiating arm 541, and the fourth radiating arm 542 are used together to radiate a second frequency band signal, which is different from the first frequency band. In this embodiment, by setting a second radiating component 54, the first radiating arm 521 and the second radiating component 54 can be used together to radiate the second frequency band signal, so that the UAV 100 can use signals of different frequency bands for transmission in different environments. In addition, by connecting the third radiating arm 541 to the first radiating arm 521, the first radiating arm 521 can radiate the second frequency band signal together with the third radiating arm 541, which helps to simplify the structure of the antenna module 5 and reduce the cost of the antenna module 5.

[0054] In some embodiments, one end of the third radiating arm 541 is connected to the second electrical contact portion 523, and the other end of the third radiating arm 541 extends along the edge of the substrate 51.

[0055] In some embodiments, when viewed in a direction perpendicular to the first surface 511, the fourth radiating arm 542 extends at least partially along the edge of the substrate 51. This arrangement can reduce the space occupied by the fourth radiating arm 542 while extending its length, which is beneficial for reducing the volume of the antenna module 5.

[0056] In some embodiments, the second frequency band is 1.42 GHz to 1.46 GHz.

[0057] In some embodiments, please refer to Figure 6The antenna module 5 also includes a third radiating component 55. The third radiating arm 541 component includes a fifth radiating arm 551 and a sixth radiating arm 552. One end of the fifth radiating arm 551 is connected to the first feed section 5111, and the fifth radiating arm 551 is located on the side of the first feed section 5111 away from the second feed section 5112. One end of the sixth radiating arm 552 is connected to the second feed section 5112, and the sixth radiating arm 552 is located on the side of the second feed section 5112 away from the first feed section 5111. The fifth radiating arm 551 and the sixth radiating arm 552 are used together to radiate signals in the third frequency band. The first, second, and third frequency bands are all different. In this embodiment, by setting the fifth radiating arm 551 and the sixth radiating arm 552, the antenna module 5 can radiate signals in the third frequency band. This allows the UAV 100 to select any one of the first, second, and third frequency bands for transmission when flying in different environments, which is beneficial for expanding the application range of the UAV 100.

[0058] In some embodiments, the fifth radiating arm 551 is bent, which helps to extend the length of the fifth radiating arm 551 so that the fifth radiating arm 551 can be used to radiate third frequency band signals and save space.

[0059] In some embodiments, the sixth radiating arm 552 is bent, which helps to extend the length of the sixth radiating arm 552 so that the sixth radiating arm 552 can be used to radiate third frequency band signals and can save space.

[0060] In some embodiments, the third frequency band is 4.33 GHz to 4.35 GHz.

[0061] In some embodiments, please refer to Figure 6 The antenna module 5 also includes a fourth radiating component 56, which includes a seventh radiating arm 561 and an eighth radiating arm 562. One end of the seventh radiating arm 561 is electrically connected to the first feed section 5111, and the other end of the seventh radiating arm 561 extends away from the second feed section 5112. One end of the eighth radiating arm 562 is electrically connected to the second feed section 5112, and the other end of the eighth radiating arm 562 extends away from the first feed section 5111. The seventh radiating arm 561 and the eighth radiating arm 562 are used together to radiate signals in the fourth frequency band. The first, second, third, and fourth frequency bands are all different. In this embodiment, by setting the seventh radiating arm 561 and the eighth radiating arm 562, the antenna module 5 can radiate signals in the fourth frequency band. This allows the UAV 100 to select any one of the first, second, third, and fourth frequency bands for transmission when flying in different environments, which is beneficial for further expanding the application range of the UAV 100.

[0062] In some embodiments, the fourth frequency band is 5.37 GHz to 6.00 GHz.

[0063] In some embodiments, please refer to Figure 2 The system comprises multiple connecting rods 2, rotor motors 3, support feet 4, antenna modules 5, and connectors 6. Multiple connecting rods 2 surround the drone body 1, with one end of each rod connected to the drone body 1. A support foot 4 is located at the end of a connecting rod 2 furthest from the drone body 1. A rotor motor 3 is located at the end of a connecting rod 2 furthest from the drone body 1, and is positioned above the support foot 4. An antenna module 5 is housed within the mounting cavity 41 of the support foot 4. One end of a connector 6 is connected to a rotor motor 3, and the other end is connected to an antenna module 5. In this embodiment, by providing multiple rotor motors 3, the drone 100 can be given stronger power for flight, facilitating its operation. Furthermore, by providing multiple antenna modules 5, the drone 100's signal transmission capabilities are enhanced.

[0064] In some embodiments, please refer to Figure 4 and Figure 5 The support foot 4 is provided with a slot 42, which is located on the inner wall of the mounting cavity 41. The substrate 51 is snapped into the slot 42, thereby realizing the positioning and assembly between the substrate 51 and the support foot 4.

[0065] In some embodiments, please refer to Figure 3 The UAV 100 also includes a coaxial line 7, which includes an inner core wire (not shown) and an outer core wire (not shown) that are isolated from each other. One of the inner core wire and the outer core wire is electrically connected to the first feed section 5111, and the other is electrically connected to the second feed section 5112, so that the signal radiated by the antenna module 5 can be transmitted to the processing unit in the UAV body 1 through the coaxial line 7, thereby processing the signal.

[0066] To help readers better understand the concept of this application, the following experiments are conducted to demonstrate its validity: (1) For the first frequency band, the antenna module 5 is configured with a substrate 51, a first radiating component 52, and an extension metal part 53. The first radiating component 52 includes a first radiating arm 521 and a second radiating arm 522. The first radiating arm 521 is electrically connected to the housing of the rotor motor 3 via a connector 6. The extension metal part 53 is electrically connected to the second radiating arm 522, enabling the antenna module 5 to radiate signals in the first frequency band. Please refer to [link to relevant documentation]. Figure 9 and Figure 10 ,in, Figure 10 The solid lines in the diagram represent the directionality of the first frequency band signal in the horizontal plane, and the dashed lines represent the directionality of the first frequency band signal in the vertical plane. Figure 9It can be seen that antenna module 5 has good circuit performance in the 0.82GHz~0.89GHz frequency band. Figure 10 It can be seen that the gain of the first frequency band signal exceeds -2dBi in the horizontal plane, and in the vertical plane, the first frequency band signal is directional, and the directional gain can exceed -2dBi.

[0067] (2) For the second frequency band, the antenna module 5 is equipped with a second radiating component 54, which includes a third radiating arm 541 and a fourth radiating arm 542. One end of the third radiating arm 541 is connected to the end of the first radiating arm 521 away from the first feed section 5111, and one end of the fourth radiating arm 542 is electrically connected to the second feed section 5112, so that the first radiating arm 521, the third radiating arm 541, and the fourth radiating arm 542 can be used together to radiate signals in the second frequency band. Please refer to [link to relevant documentation]. Figure 9 and Figure 11 ,in, Figure 11 The solid lines in the diagram represent the directionality of the second frequency band signal in the horizontal plane, and the dashed lines represent the directionality of the second frequency band signal in the vertical plane. Figure 9 It can be seen that antenna module 5 has good circuit performance in the 1.42GHz~1.46GHz frequency band. Figure 11 It can be seen that the gain of the second frequency band signal exceeds 2dBi in the horizontal plane, and in the vertical plane, the second frequency band signal is directional, and the directional gain can exceed 2dBi.

[0068] (3) For the third frequency band, the antenna module 5 is equipped with a third radiating component 55, which includes a fifth radiating arm 551 and a sixth radiating arm 552. One end of the fifth radiating arm 551 is connected to one end of the first feed section 5111, and one end of the sixth radiating arm 552 is electrically connected to the second feed section 5112, so that the fifth radiating arm 551 and the sixth radiating arm 552 can be used together to radiate signals in the third frequency band. Please refer to Figure 9 and Figure 12 ,in, Figure 12 The solid lines in the diagram represent the directionality of the third frequency band signal in the horizontal plane, and the dashed lines represent the directionality of the third frequency band signal in the vertical plane. Figure 9 It can be seen that antenna module 5 has good circuit performance in the 2.38GHz~2.51GHz frequency band. Figure 12 It can be seen that the gain of the third frequency band signal exceeds 1 dBi in the horizontal plane, and in the vertical plane, the third frequency band signal is directional, and the directional gain can exceed 1 dBi.

[0069] (3) For the fourth frequency band, the antenna module 5 is equipped with a fourth radiating component 56, which includes a seventh radiating arm 561 and an eighth radiating arm 562. One end of the seventh radiating arm 561 is connected to one end of the first feed section 5111, and one end of the eighth radiating arm 562 is electrically connected to the second feed section 5112, so that the seventh radiating arm 561 and the eighth radiating arm 562 can be used together to radiate signals in the fourth frequency band. Please refer to [link to relevant documentation]. Figure 9 and Figure 13 ,in, Figure 13 The solid lines in the diagram represent the directionality of the fourth frequency band signal in the horizontal plane, and the dashed lines represent the directionality of the fourth frequency band signal in the vertical plane. Figure 9 It can be seen that antenna module 5 has good circuit performance in the 2.38GHz~2.51GHz frequency band. Figure 13 It can be seen that the gain of the fourth frequency band signal exceeds 1 dBi in the horizontal plane, and in the vertical plane, the fourth frequency band signal is directional, and the directional gain can exceed 1 dBi.

[0070] In this embodiment, by electrically connecting one end of the connector 6 to the rotor motor 3 and the other end of the connector 6 to the second radiating arm 522, the metal components in the rotor motor 3 and the connector 6 can serve as a radiating structure for the first frequency band signal. Thus, without increasing the length of the second radiating arm 522, the first radiating component 52 can radiate low-frequency signals, thereby expanding the application scenarios of the UAV 100.

[0071] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A drone, characterized in that, include: The drone itself; A connecting rod, one end of which is attached to the drone body; A rotor motor is located at the end of the connecting rod furthest from the drone body; A support foot is provided at the end of the connecting rod away from the UAV body. The support foot is provided with a mounting cavity. The rotor motor is at least partially exposed in the mounting cavity. The support foot and the rotor motor are respectively located on opposite sides of the connecting rod. An antenna module includes a substrate and a first radiating component. The substrate is housed in a mounting cavity. The substrate is provided with a first feed portion and a second feed portion spaced apart from each other. The first radiating component includes a first radiating arm and a second radiating arm. One end of the first radiating arm is electrically connected to the first feed portion, and the other end of the first radiating arm extends in a direction away from the second feed portion. One end of the second radiating arm is electrically connected to the second feed portion, and the other end of the second feed portion extends in a direction away from the first feed portion. A connector, one end of which is electrically connected to the rotor motor, and the other end of which is electrically connected to the second radiating arm. The first radiating arm, the second radiating arm, the connector, and the rotor motor are used together to radiate a first frequency band signal.

2. The UAV according to claim 1, characterized in that, The connector extends in a bent manner from the end where it is connected to the rotor motor to the end where it is connected to the second radial arm.

3. The UAV according to claim 1, characterized in that, The substrate has a first surface and a second surface facing each other. The first radiating component is disposed on the first surface, and the second surface has a first contact portion. The first contact portion is connected to the end of the second radiating arm away from the second feed portion, and the connector abuts against the first contact portion.

4. The UAV according to claim 3, characterized in that, The substrate is provided with a card hole that penetrates the substrate; The connector is provided with a snap-fit ​​part, which snaps into the snap-fit ​​hole.

5. The UAV according to claim 1, characterized in that, The first radiating component further includes an extended metal member, which is snapped into the substrate and electrically connected to the end of the first radiating arm away from the first feed section. The first radiating arm and the extended metal member are used together to radiate a first frequency band signal.

6. The UAV according to claim 5, characterized in that, The extended metal component includes a connecting section, a first extension section, and a second extension section. The connecting section is disposed on the substrate and is electrically connected to the first radiating arm. One end of the first extension section is connected to one end of the connecting section, and one end of the second extension section is connected to the other end of the connecting section. Along a direction perpendicular to the first surface of the substrate, the first extension section and the second extension section are located on opposite sides of the substrate.

7. The UAV according to claim 6, characterized in that, The first radiating component further includes a second power receiving part, which is connected to the end of the first radiating arm away from the first power feeding part, and the connecting segment is electrically connected to the second power receiving part.

8. The UAV according to claim 1, characterized in that, The antenna module further includes a second radiating component, which includes a third radiating arm and a fourth radiating arm. One end of the third radiating arm is connected to the end of the first radiating arm away from the first feed section, and one end of the fourth radiating arm is electrically connected to the second feed section. The first radiating arm, the third radiating arm, and the fourth radiating arm are used together to radiate a second frequency band signal, and the first frequency band and the second frequency band are different.

9. The UAV according to claim 8, characterized in that, Viewed along a direction perpendicular to the first surface, the fourth radiating arm extends at least partially along the edge of the substrate.

10. The UAV according to claim 5, characterized in that, The support foot is provided with a slot, the slot is located in the mounting cavity, and the base plate is snapped into the slot.

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