WO2018232842A1 - 云台 - Google Patents

云台 Download PDF

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Publication number
WO2018232842A1
WO2018232842A1 PCT/CN2017/095544 CN2017095544W WO2018232842A1 WO 2018232842 A1 WO2018232842 A1 WO 2018232842A1 CN 2017095544 W CN2017095544 W CN 2017095544W WO 2018232842 A1 WO2018232842 A1 WO 2018232842A1
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WO
WIPO (PCT)
Prior art keywords
metal
metal casing
pan
insulator
antenna
Prior art date
Application number
PCT/CN2017/095544
Other languages
English (en)
French (fr)
Inventor
李栋
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201780084959.XA priority Critical patent/CN110235307B/zh
Publication of WO2018232842A1 publication Critical patent/WO2018232842A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles

Definitions

  • the invention relates to a cloud platform.
  • a gimbal (especially a handheld pan/tilt) includes a housing and various electronic components such as a circuit board, an antenna, and the like disposed in the housing.
  • the housing of the gimbal is mostly made of plastic; or, part of the housing is made of metal, and part of the housing near the antenna is still plastic.
  • the performance of the plastic case in terms of strength and heat dissipation is weaker than that of the metal case.
  • the invention provides a cloud platform which achieves excellent antenna performance while retaining the metal casing.
  • a cloud platform that is wirelessly connectable to an external device and/or network using an antenna
  • the cloud platform including a metal housing having a receiving space therein, An insulator is disposed on the metal housing, and the metal housing is electrically connected to the transmitter module and/or the receiver module such that at least a portion of the metal housing can function as an antenna.
  • the metal casing is provided with a gap, and the insulator is filled in the gap;
  • the metal casing includes a first metal casing and a second metal casing, and the first and second metal casings With the gap defined, the gap does not completely isolate the first and second metal housings such that the two are still electrically connected.
  • one of the first and second metal housings is electrically connected to the transmitter module and/or the receiver module, and the other is grounded.
  • the metal housing further includes a conductive portion, and two ends of the conductive portion respectively connect the first metal housing and the second metal housing to make the first and second metal shells Electrically connected.
  • first and second metal shells are integrally formed with the conductive portion.
  • the upper portion of the conductive portion is covered with the insulator.
  • a sum of thicknesses of the conductive portion and an insulator above it is equal to a thickness of the first metal shell and/or the second metal shell.
  • the upper surface of the insulator and the first metal shell adjacent thereto are flush with the upper surface of the second metal shell.
  • the insulator has an elongated strip shape.
  • portion of the metal casing as the antenna includes a U-shaped portion having a U-shaped transverse cross section, and the U-shaped portion is equal in height in the longitudinal direction except at the edge. ;
  • the U-shaped portion is electrically connected to the transmitter module and/or the receiver module as a radiation portion of the antenna;
  • the portion of the metal casing as the antenna further includes a ground portion, and the lateral portion of the ground portion is closed;
  • the radiating portion and the ground portion are located on different sides of the insulator, and are electrically connected through a conductive portion.
  • FIG. 1 is a schematic diagram of an element module of a pan/tilt according to an exemplary embodiment of the present invention.
  • FIGS. 2 to 5 are schematic views showing the structure of a metal casing according to an embodiment of the present invention.
  • 6 and 7 are schematic views showing the structure of a metal case according to another embodiment of the present invention.
  • FIG. 8 and FIG. 9 are diagrams showing test results of antenna performance when the metal casing of the embodiment shown in FIG. 6 and FIG. 7 operates as an antenna.
  • the words “a” or “an” and the like do not denote a quantity limitation, but mean that there is at least one. Unless otherwise indicated, the terms “front”, “rear”, “lower” and/or “upper” are used for convenience of description and are not limited to one location or one spatial orientation.
  • the words “connected” or “connected” and the like are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.
  • the cloud platform in this embodiment is a handheld cloud platform.
  • the handheld pan/tilt may mainly include a handheld unit 200, a pan/tilt portion 400, and an imaging device 600.
  • the shape of the hand-held portion 200 may be a column shape that is easy to hold by one hand, or other shapes that are easy to hold by both hands, for example, a rectangular parallelepiped similar to a card type camera, a mobile phone, or the like.
  • Handheld department A plurality of components such as the controller 220, the display screen 240, the control panel 260, and the wireless transmission module 280 may be disposed on or in the 200.
  • the control panel 260 is an interface for interaction between the user and the pan/tilt.
  • the user can issue various control commands to the pan/tilt through the control panel 260, for example, lifting the imaging device 600 upward to obtain an image at a higher position; and obtaining some state information of the pan/tilt through the control panel 260, for example, by using a power signal lamp. It is easy to know if the gimbal is turned on.
  • the display screen 240 can display a real-time image of the scene being captured by the imaging device 600 to the user in real time, and can also be used by the user to view images previously saved in the pan-tilt device.
  • the wireless transmission module 280 can generally include one or more antennas and associated transmitter modules and/or receiver modules for enabling data exchange between the cloud platform and the outside world.
  • the outermost layer of the hand piece 200 is a metal case having an accommodation space inside.
  • the electronic component such as the controller 220 and the transmitter module and/or the receiver module may be disposed in the receiving space; the display screen 240 and the control panel 260 and the like may be disposed on the metal casing, for example, on the metal casing. Opening holes or slots, etc., the display screen 240 and control buttons or signal lights associated with the control panel 260 can be embedded in corresponding holes or slots.
  • the metal housing or a portion thereof can serve as an antenna and is electrically coupled to the transmitter module and/or the receiver module.
  • the pan/tilt portion 400 can be mounted on the handheld portion 200 and used to carry the imaging device 600.
  • the platform portion 400 can include a plurality of rotating shafts to effect rotation of the platform portion 400 in a plurality of directions (relative to the handheld portion 200).
  • the imaging device 600 can be rotated together with the pan-tilt portion 400 to achieve adjustment of its position and state.
  • the imaging device 600 may be a camera, a camera, a smartphone having a photographing function, or the like.
  • FIGS. 3 and 4 are schematic cross-sectional views along lines AA and CC of FIG. 2, respectively, to clearly show the metal shell The relative positional relationship between the body and the insulator;
  • FIG. 5 is a plan view of the metal casing to illustrate the connection relationship between the metal casings in different regions, and the insulator is omitted in the drawing.
  • the interior of the metal casing 10 has a receiving space for placing various components such as a circuit board, a processor, a transmitter module/receiver module, and the like.
  • the metal casing 10 is provided with The gap G is filled with the insulator 30.
  • the metal housing 10 is electrically coupled to the transmitter module and/or the receiver module such that at least a portion of the metal housing 10 can function as an antenna. Since the metal casing 10 is provided with an antenna function, this allows an appropriate amount of the antenna to be reduced in the accommodation space of the metal casing 10, or the antenna is not provided at all.
  • the metal material case not only has a more beautiful appearance, but also has enhanced body strength and heat dissipation performance.
  • the metal case 10 mentioned here may be a metal plate made of a metal or an alloy, or may be made by coating a metal material on the insulating base material.
  • the material of the insulator 30 may be a non-conductive material such as plastic or ceramic.
  • the metal casing 10 may be divided into a first metal casing 12 and a second metal casing 14 by a gap G or an insulator 30. In the embodiment shown in FIGS. 2 to 5, the gap G is not completely
  • the first and second metal housings 12, 14 are isolated such that they are still electrically connected.
  • One of the first and second metal casings 12, 14 is electrically connected to the transmitter module and/or the receiver module, as a radiating portion of the antenna, and the other is grounded as a grounding portion of the antenna.
  • the first metal casing 12 faces upward and the second metal casing 14 faces downward, and the first metal casing 12 is closer to the sky than the second metal casing 14, and the first metal shell is As the radiation portion, the body 12 can achieve better antenna performance.
  • the metal housing 10 may further include a conductive portion 13 .
  • the two ends of the conductive portion 13 are respectively connected to the first metal housing 12 and the second metal housing 14 so that The first and second metal casings 12 and 14 are electrically connected.
  • the first and second metal casings 12, 14 may be integrally formed with the conduction portion 13.
  • the number of the conduction portions 13 may be one, two or more.
  • the upper portion of the conductive portion 13 may be covered with an insulator 30 such that all portions of the insulator 30 are integrally connected as shown in FIG.
  • the sum of the thicknesses of the conductive portion 13 and the insulator 30 above it may be equal to the thickness of the first metal casing 12 and/or the second metal casing 14, as shown in FIG. 3, such that the upper surface of the insulator 30 and the adjacent thereto A metal housing 12 is flush with the upper surface of the second metal housing 14.
  • the conducting portion 13 is not exposed, and the insulator 30 has an elongated, flat strip shape, as shown in FIG. 2, which is advantageous for the aesthetics of the entire housing.
  • the width of the gap G (the distance between the first and second metal shells 12, 14 in the vertical direction in FIG. 5) may be between 1 mm (mm) and 3 mm (mm).
  • the width of the first metal casing 12 can also be adjusted according to actual needs, for example, 9.5 millimeters (mm).
  • Commonly used antennas in the PTZ include dual-band WiFi antennas (2.4GHZ WiFi antenna and 5.8GHz WiFi antenna), GPS antennas and 5.8G audio antennas.
  • the metal casing 10 shown in FIG. 2 to FIG. 5 is connected to the transmitter module and the receiver module, and the performance of the antenna in terms of return loss and isolation is detected in the laboratory, and it is found that it can be very Goodly meet the performance requirements of dual-band WiFi antennas, GPS antennas and 5.8G audio antennas.
  • the gap between the first and second metal housings may completely isolate the first and second metal housings from electrically insulating the two. That is, there may be no conductive portion as described above between the first and second metal housings.
  • the first metal housing and/or the second metal housing can be used independently as an antenna.
  • one area of the first metal casing may be coupled to the transmitter module and/or the receiver module as the radiating portion of the antenna, and the other region of the first metal casing is grounded as the grounding portion of the antenna.
  • the second metal housing is used as or not as an antenna.
  • An internal antenna may be additionally provided in the accommodation space inside the metal casing 10, and the gap G and the insulator 30 may serve as a passage for transmitting and/or receiving electromagnetic waves as the built-in antenna.
  • the built-in antenna can operate in different frequency bands, provide wireless transmission service for the pan/tilt in a frequency band different from the metal casing 10, and can also operate in the same frequency band as the metal casing 10 as a backup for the metal casing 10.
  • FIG. 6 and 7 are schematic views showing the structure of a metal case according to another embodiment of the present invention.
  • the metal housing can be applied to various pan/tilt devices, for example, in a handheld pan/tilt head as shown in FIG. 1, as a housing of its hand-held portion 200.
  • 6 is a front view showing the positional relationship between the first metal casing 12, the second metal casing 14, and the insulator 30, and
  • FIG. 7 is a plan view of the first metal casing 12.
  • the main structure of the metal casing in this embodiment (with the exception of a few details) can be the same as in the previous embodiments, so that the differences will be described below, and the structures not described can be referred to the foregoing embodiments.
  • the metal casing includes a first metal casing 12 and a second metal casing 14, and the length of the first metal casing 12 in the lateral direction is significantly smaller than that of the second metal casing 14.
  • the pan head portion 400 and the image forming apparatus 600 and the like as shown in FIG. 1 may be installed at the first metal casing 12. In the working state of the pan/tilt, the first metal casing 12 faces upward and the second metal casing 14 Downward, the user can hold on the second metal housing 14.
  • the first metal casing 12 has a "U" shape in cross section, and thus may also be referred to as a "U” portion.
  • the "U" shaped portions are equal in height in the longitudinal direction except at the edges.
  • the first metal housing 12 is electrically connected to the transmitter module and/or the receiver module as a radiating portion of the antenna.
  • the transverse cross section of the second metal casing 14 has a closed shape, such as a rounded rectangle.
  • the second metal casing 14 is grounded to serve as a grounding portion of the antenna.
  • a gap is formed between the first metal casing 12 and the second metal casing 14, and the gap is filled with the insulator 30.
  • the first and second metal housings 12, 14 are located on different sides of the insulator 30 and are electrically conductive through a conductive portion (which may be as shown in the previous embodiments).
  • the second metal casing 14 having a relatively large body shape and being held and operated by the user is located at the center of gravity of the user, and the installation of the insulator 30 on the first metal casing 12 having a relatively small body shape and away from the user can further enhance the gimbal.
  • Figure 8 is a graph showing test results of return loss and isolation when the metal casing of the embodiment shown in Figures 6 and 7 is operated as an antenna. As can be seen from Figure 8, it can well meet the performance requirements of dual-band WiFi antennas, GPS antennas and 5.8G audio antennas.
  • Figure 9 is a view showing the operation of the metal casing of the embodiment shown in Figures 6 and 7 as a GPS antenna. As can be seen from Figure 9, when operating as a GPS antenna, the radiation direction is mainly the upper half plane, which facilitates its interaction with GPS satellites.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of Aerials (AREA)

Abstract

一种云台，可利用天线与外部的装置和/或网络无线连接，包括内部具有容纳空间的金属壳体(10)，金属壳体(10)上设置有空隙(G)，空隙(G)内填充有绝缘体(30)，金属壳体(10)与发射机模组和/或接收机模组电性连接，以使金属壳体(10)的至少一部分可作为天线工作。

Description

云台 技术领域
本发明涉及云台。
背景技术
通常云台(特别是手持云台)包括壳体及设置于所述壳体内的各种电子元件，如电路板、天线等。为了不影响天线的性能，云台的壳体多采用塑料；或者，部分壳体为金属，天线附近的部分壳体仍然为塑料。
塑料壳体在强度、散热等方面的性能均弱于金属壳体。
发明内容
本发明提供一种云台，在保留金属壳体的同时，实现了优良的天线性能。
根据本发明实施例的第一方面，提供一种云台，所述云台可利用天线与外部的装置和/或网络无线连接，所述云台包括内部具有容纳空间的金属壳体，所述金属壳体上设置有绝缘体，所述金属壳体与发射机模组和/或接收机模组电性连接，以使所述金属壳体的至少一部分可作为天线工作。
进一步地，所述金属壳体上设置有空隙，所述绝缘体填充在所述空隙内；所述金属壳体包括第一金属壳体与第二金属壳体，所述第一、二金属壳体以所述空隙为界，所述空隙未完全隔离所述第一、二金属壳体，使得两者仍电性连接。
进一步地，所述第一、二金属壳体中的其中一个与所述发射机模组和/或所述接收机模组电性连接，另一个接地。
进一步地，所述金属壳体还包括导通部，所述导通部的两端分别连接所述第一金属壳体与所述第二金属壳体，以使所述第一、二金属壳体电性相连。
进一步地，所述第一、二金属壳体与所述导通部一体成型。
进一步地，所述导通部的上方覆盖有所述绝缘体。
进一步地，所述导通部与其上方的绝缘体的厚度之和等于所述第一金属壳体和/或所述第二金属壳体的厚度。
进一步地，所述绝缘体的上表面和与其相邻的第一金属壳体与第二金属壳体的上表面齐平。
进一步地，所述绝缘体呈细长的带状。
进一步地，所述金属壳体作为天线的部位包括一U型部，所述U型部的横向截面呈“U”形，除边缘处外，所述U型部各处在纵向上的高度相等；
所述U型部与所述发射机模组和/或所述接收机模组电性相连，作为天线的辐射部；
所述金属壳体作为天线的部位还包括一接地部，所述接地部的横向截面呈封闭状；
所述辐射部与所述接地部位于所述绝缘体的不同侧，并通过一导通部电性导通。
附图说明
图1是本发明一示例型实施例云台的元件模块示意图。
图2至图5是本发明一实施例金属壳体的结构示意图。
图6与图7是本发明另一实施例金属壳体的结构示意图。
图8与图9是图6与图7所示实施例中金属壳体作为天线工作时，天线性能的测试结果图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本发明使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，本申请说明书以及权利要求书中使用的“第一”“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。除非另行指出，“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“包括”或者“包含”等类似词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同，并不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而且可以包括电性的连接，不管是直接的还是间接的。
下面结合附图，对本发明的云台进行详细说明。在不冲突的情况下，下述的实施例及实施方式中的特征可以相互组合。
图1是本发明一示例型实施例云台的元件模块示意图。本实施例中的云台为手持云台，当然，在其它实施例中，也可以是其它类型的云台，比如，无人机云台。如图1，手持云台可主要包括手持部200、云台部400以及成像装置600。
手持部200的形貌可为便于单手握持的柱状，也可为便于双手握持的其它形状，比如，与卡片式相机、手机等类似的长方体。手持部 200上或内可设置控制器220、显示屏240、控制面板260与无线传输模块280等多个元件。其中，控制面板260为用户与云台之间交互的界面。用户可通过控制面板260对云台发出各种控制指令，比如，向上抬升成像装置600，以获取更上方处的图像；也可通过控制面板260获得云台的一些状态信息，比如，通过电源信号灯可容易地知道云台是否已开启。显示屏240可实时向用户显示成像装置600正抓取到的景物的实时图像，也可供用户浏览之前保存在云台设备内的图像。无线传输模块280通常可包括一个或多个天线以及与其配套的发射机模块和/或接收机模块，用于实现云台与外界之间的数据交换。
手持部200的最外层是一金属壳体，金属壳体的内部具有容纳空间。控制器220与发射机模块和/或接收机模块等电子元器件，可设置在该容纳空间内；显示屏240与控制面板260等可设置在金属壳体上，比如，可在金属壳体上开设孔或槽等，显示屏240以及与控制面板260相关的控制按键或信号灯等可镶嵌在相应的孔或槽内。金属壳体或其一部分可作为天线，与发射机模块和/或接收机模块电性相连。
云台部400可安装在手持部200上，并用于承载成像装置600。云台部400可包括多个转轴，以实现云台部400在多个方向上(相对手持部200)的转动。成像装置600可跟随云台部400一起转动，从而实现其位置和状态的调整。成像装置600既可以是摄像头、相机，也可以是具有拍照功能的智能手机等。
图2至图5是本发明一实施例金属壳体的结构示意图。该金属壳体可应用于各种云台装置，比如，可用在如图1所示的手持云台中，作为其手持部200的壳体。其中，图2是金属壳体的立体示意图，在该图中，金属壳体的部分区域设置有绝缘体；图3与图4分别是沿图2中线A-A、C-C的剖面示意图，以清楚显示金属壳体与绝缘体之间的相对位置关系；图5是金属壳体的一个平面视图，为示意不同区域金属壳体之间的连接关系，图中略去绝缘体。
金属壳体10的内部具有容纳空间，用以放置各种元器件，比如，电路板、处理器、发射机模组/接收机模组等。金属壳体10上设置有 空隙G，该空隙G内填充有绝缘体30。金属壳体10与发射机模组和/或接收机模组电性连接，以使该金属壳体10的至少一部分可作为天线工作。由于金属壳体10具备天线功能，这使得金属壳体10的容纳空间内可适量减少天线的数量，或者干脆不设置天线。另外，与塑料壳体相比，金属材料的壳体不仅外观更漂亮，机身强度、散热性能等方面也得到了增强。
说明一点，这里所说的金属壳体10既可以是由金属或合金制作而成的金属板，也可以是由在绝缘基材上涂覆金属材料而制成。绝缘体30的材料可以是塑料、陶瓷等非导电材质。
以空隙G或绝缘体30为界，金属壳体10可被划分为第一金属壳体12与第二金属壳体14，在图2至图5所示的实施例中，所述空隙G未完全隔离第一、二金属壳体12、14，使得两者仍电性连接。第一、二金属壳体12、14中的其中一个与发射机模组和/或接收机模组电性连接，作为天线的辐射部，另一个接地，作为天线的接地部。在本实施例云台的工作状态，第一金属壳体12朝上、第二金属壳体14朝下，第一金属壳体12比第二金属壳体14更靠近天空，将第一金属壳体12作为辐射部，可取得更优的天线性能。
除第一、二金属壳体12、14外，金属壳体10可还包括导通部13，导通部13的两端分别连接第一金属壳体12与第二金属壳体14，以使第一、二金属壳体12、14电性相连。第一、二金属壳体12、14可与导通部13一体成型。另外，导通部13的数量可以是1个、2个或更多个。
导通部13的上方可覆盖有绝缘体30，以使得绝缘体30的所有部分连为一个整体，如图4所示。导通部13与其上方的绝缘体30的厚度之和可等于第一金属壳体12和/或第二金属壳体14的厚度，如图3，以使得绝缘体30的上表面和与其相邻的第一金属壳体12与第二金属壳体14的上表面齐平。导通部13不外露，绝缘体30呈细长、平直的带状，如图2所示，有利于整个壳体的美观。
在具体实施时，空隙G的宽度(图5中第一、二金属壳体12、14在竖直方向上的距离)可在1毫米(mm)到3毫米(mm)之间 调整，第一金属壳体12的宽度也可以根据实际需要作调整，比如可为9.5毫米(mm)。
云台内常用的天线包括双频WiFi天线(2.4GHZ WiFi天线与5.8GHz WiFi天线)、GPS天线与5.8G音频天线等。将图2至图5中所示的金属壳体10与发射机模组和接收机模组连接，在实验室中检测其天线在回波损耗和隔离度等各方面的性能，发现其可以很好地满足双频WiFi天线、GPS天线与5.8G音频天线的性能要求。
说明一点，在其它实施例中，第一、二金属壳体之间的空隙可完全隔离第一、二金属壳体，使得两者电绝缘。即，第一、二金属壳体之间可不存在如前面所述的导通部。第一金属壳体和/或第二金属壳体可独立作为天线使用。比如，第一金属壳体的一个区域可与发射机模组和/或接收机模组，作为天线的辐射部，第一金属壳体的另一个区域接地，作为天线的接地部。同时，第二金属壳体作为或不作为天线使用。
金属壳体10内部的容纳空间内可另外设置内置天线，空隙G及绝缘体30可作为该内置天线发送和/或接受电磁波的通道。该内置天线既可工作于不同频段，在不同于金属壳体10的频段为云台提供无线传输服务；也可工作于与金属壳体10相同的频段，作为金属壳体10的备用。
图6与图7是本发明另一实施例金属壳体的结构示意图。该金属壳体可应用于各种云台装置，比如，可用在如图1所示的手持云台中，作为其手持部200的壳体。其中，图6为其正视图，显示第一金属壳体12、第二金属壳体14与绝缘体30之间的位置关系，图7为其第一金属壳体12的俯视图。本实施例中金属壳体的主要结构(除极少数细节外)均可与前面各实施例中相同，因而以下重点介绍它的不同处，未介绍到的结构均可参见前面各实施例。
如图6与图7，金属壳体包括第一金属壳体12与第二金属壳体14，第一金属壳体12在横向的长度明显小于第二金属壳体14。如图1中所示的云台部400以及成像装置600等可安装在第一金属壳体12处。在云台的工作状态，第一金属壳体12朝上、第二金属壳体14 朝下，用户可握持在第二金属壳体14上。
第一金属壳体12的横向截面呈“U”形，因而也可称其为“U”型部。除边缘处外，该“U”型部各处在纵向上的高度相等。第一金属壳体12与发射机模组和/或接收机模组电性相连，作为天线的辐射部。
第二金属壳体14的横向截面呈封闭的形状，比如圆角矩形。第二金属壳体14接地，作为天线的接地部。
第一金属壳体12与第二金属壳体14之间设有空隙，该空隙内填充有绝缘体30。第一、二金属壳体12、14位于绝缘体30的不同侧，并通过一导通部(其可如前面各实施例中所示)电性导通。
体型相对较大并供用户握持、操作的第二金属壳体14是用户的视觉重心所在，将绝缘体30设置在体型相对较小并远离用户的第一金属壳体12上可进一步提高云台外形的美观度。
图8是图6与图7所示实施例的金属壳体作为天线工作时，回波损耗和隔离度的测试结果图。从图8中可以看出，其可以很好地满足双频WiFi天线、GPS天线与5.8G音频天线的性能要求。图9是图6与图7所示实施例的金属壳体作为GPS天线工作时的方向图。从图9可以看出，作为GPS天线工作时，辐射方向主要为上半平面，这有利于它与GPS卫星的交互。
以上所述仅是本发明的较佳实施例而已，并非对本发明做任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案的范围内，当可利用上述揭示的技术内容做出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。
本专利文件披露的内容包含受版权保护的材料。该版权为版权所有人所有。版权所有人不反对任何人复制专利与商标局的官方记录和档案中所存在的该专利文件或者该专利披露。

Claims (10)

  1. 一种云台，所述云台可利用天线与外部设备通信，其特征在于，所述云台包括内部具有容纳空间的金属壳体，所述金属壳体上设置有绝缘体，所述金属壳体与发射机模组和/或接收机模组电性连接，以使所述金属壳体的至少一部分可作为天线工作。
  2. 根据权利要求1所述的云台，其特征在于，所述金属壳体上设置有空隙，所述绝缘体填充在所述空隙内；所述金属壳体包括第一金属壳体与第二金属壳体，所述第一.二金属壳体以所述空隙为界，所述空隙未完全隔离所述第一.二金属壳体，使得两者仍电性连接。
  3. 根据权利要求2所述的云台，其特征在于，所述第一.二金属壳体中的其中一个与所述发射机模组和/或所述接收机模组电性连接，另一个接地。
  4. 根据权利要求2所述的云台，其特征在于，所述金属壳体还包括导通部，所述导通部的两端分别连接所述第一金属壳体与所述第二金属壳体，以使所述第一.二金属壳体电性相连。
  5. 根据权利要求4所述的云台，其特征在于，所述第一.二金属壳体与所述导通部一体成型。
  6. 根据权利要求4所述的云台，其特征在于，所述导通部的上方覆盖有所述绝缘体。
  7. 根据权利要求6所述的云台，其特征在于，所述导通部与其上方的绝缘体的厚度之和等于所述第一金属壳体和/或所述第二金属壳体的厚度。
  8. 根据权利要求2所述的云台，其特征在于，所述绝缘体的上表面和与其相邻的第一金属壳体与第二金属壳体的上表面齐平。
  9. 根据权利要求1所述的云台，其特征在于，所述绝缘体呈细长的带状。
  10. 根据权利要求1所述的云台，其特征在于，所述金属壳体作 为天线的部位包括一U型部，所述U型部的横向截面呈“U”形，除边缘处外，所述U型部各处在纵向上的高度相等；
    所述U型部与所述发射机模组和/或所述接收机模组电性相连，作为天线的辐射部；
    所述金属壳体作为天线的部位还包括一接地部，所述接地部的横向截面呈封闭状；
    所述辐射部与所述接地部位于所述绝缘体的不同侧，并通过一导通部电性导通。
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