WO2017032339A1 - 具有供电功能的影音扩展装置 - Google Patents

具有供电功能的影音扩展装置 Download PDF

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Publication number
WO2017032339A1
WO2017032339A1 PCT/CN2016/096904 CN2016096904W WO2017032339A1 WO 2017032339 A1 WO2017032339 A1 WO 2017032339A1 CN 2016096904 W CN2016096904 W CN 2016096904W WO 2017032339 A1 WO2017032339 A1 WO 2017032339A1
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audio
interface
video
module
expansion
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PCT/CN2016/096904
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English (en)
French (fr)
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徐业友
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深圳市元创时代科技有限公司
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Publication of WO2017032339A1 publication Critical patent/WO2017032339A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus

Definitions

  • the present invention relates to the field of electronic devices, and in particular, to an audio/video expansion device having a power supply function.
  • the object of the present invention is to provide a video and audio expansion device with a power supply function, which can not only solve the charging requirements of various electronic products, but also realize the audio and video expansion function, and combine the audio and video function expansion module with the multi-voltage current conversion module. Give users more convenient use.
  • the present invention provides a video and audio expansion device having a power supply function, comprising a housing and a circuit board, the circuit board having at least an audio/video expansion module and a voltage conversion module; and the housing is further provided with a plurality of audio and video An expansion interface, at least one audio extension interface, and at least one device connection interface, wherein the audio and video expansion interface, the audio expansion interface, and the device connection interface are electrically connected to the audio and video expansion module respectively; A power supply interface of the plurality of power supply voltages, wherein the power supply interface and the voltage conversion module are electrically connected to each other.
  • the video expansion interface includes an HDMI interface, a DVI interface, a VGA interface, a DP interface, and/or a MINI DP interface.
  • the audio extension interface includes an audio input interface and an audio output interface.
  • the audio input interface is a microphone
  • the audio output interface is a 3.5 mm audio interface and/or a lotus audio interface.
  • the power supply interface is powered by a plurality of DC voltages.
  • the DC voltage includes 5V, 12V and / or 19V; and / or
  • the power supply interface is a USB interface.
  • the device connection interface is a USB interface, a Type-C interface, and/or a MINI DP interface.
  • the device connection interface is connected to the device end, the audio/video expansion interface is connected to the video display device, and the audio extension interface is connected to the audio playback device; the video display device and the audio playback device As a unitary structure or exist independently of each other.
  • the circuit board further includes a lightning protection and surge protection module, and the current of the external power source passes through the lightning protection and surge protection module, and then enters the audio and video expansion module and the voltage. Conversion module.
  • the circuit board is further provided with a 220V socket module, and the housing is provided with at least one socket, and the socket and the 220V socket module are electrically connected to each other;
  • the anti-surge protection module is electrically connected to the 220V socket module and the voltage conversion module, respectively, and the 220V socket module and the audio/video expansion module are electrically connected to each other.
  • the housing is provided with at least one storage slot; and/or
  • the outer casing is provided with a groove and a protective cover matching the shape of the groove near each of the sockets, a bottom of the protective cover is rotatably connected to the outer casing; the protective cover is placed in the concave The protective cover covers the socket when in the slot; the socket is exposed when the protective cover is disengaged from the recess.
  • the video and audio expansion device with power supply function comprises a casing and a circuit board, and the circuit board is provided with at least a video and audio expansion module and a voltage conversion module, and the audio and video expansion module and the plurality of audio and video expansion interfaces and the audio expansion interface on the outer casing and
  • the device connection interface is electrically connected to provide a plurality of audio and video extension functions;
  • the voltage conversion module is electrically connected to a plurality of charging interfaces on the housing to provide various voltage and current charging functions.
  • the invention can not only realize a plurality of audio and video expansion functions, but also can solve the charging requirements of different voltages and currents of various electronic products, and form a kind of combination of a plurality of voltage and current power supply functions and a full range of audio and video expansion functions.
  • the audio and video extension center with audio and video transmission and multiple voltage and current can solve the power supply and video and audio expansion of almost all electronic products in one stop, which is convenient for users.
  • FIG. 1 is a perspective view of a video/audio expansion device preferably having a power supply function according to the present invention
  • FIG. 2 is a perspective view of the audio-visual expansion device of the present invention preferably having a power supply function
  • FIG. 3 is a schematic block diagram of a circuit board of a video/audio expansion device preferably having a power supply function according to the present invention.
  • the video and audio expansion device 100 having the power supply function includes a housing 10 and a circuit board 20, and the circuit board 20 is provided with at least an audio/video expansion module 22 and a voltage conversion module 21; There are also a plurality of audio and video expansion interfaces 30, at least one audio expansion interface 40, and at least one device connection interface 50.
  • the audio/video expansion interface 30, the audio expansion interface 40, and the device connection interface 50 are electrically connected to the audio/video expansion module 22, respectively.
  • the power supply interface 60 is provided with a plurality of power supply voltages, and the power supply interface 60 and the voltage conversion module 21 are electrically connected to each other to provide various voltages for various electronic devices. Charging function with current.
  • the invention combines a video function extension with a plurality of voltage and current conversions to form a video and audio expansion device which can have a power supply function. It's a good combination of these two functions, especially on the desk to provide a multi-screen expansion connection and audio extension for the PC (Personal Computer), and also for PC, mobile phone and Mobile devices such as tablets provide a power supply interface, making it easier for users to use in daily use.
  • PC Personal Computer
  • PC Personal Computer
  • mobile phone and Mobile devices such as tablets provide a power supply interface, making it easier for users to use in daily use.
  • the circuit board 20 further includes a lightning protection surge protection module 23, and the current of the external power source passes through the lightning protection surge protection module 23 and then enters the voltage conversion module 21 and the audio and video expansion module 22, and the external power supply is preferably 220V mains.
  • the lightning protection and surge protection module 23 can prevent the lightning conversion weather from damaging the voltage conversion module 21 and the audio and video expansion module 22.
  • the lightning protection and surge protection module 23 The shunt can be turned on in a very short time to avoid damage to other equipment in the loop.
  • the circuit board 20 is further provided with a 220V socket module 24, and the outer casing 10 is provided with at least one socket 11, and the socket 11 and the 220V socket module 24 are electrically connected to each other for providing 220V voltage supply for the electronic device; lightning protection and wave protection
  • the surge protection module 23 is electrically connected to the 220V socket module 24 and the voltage conversion module 21, respectively, and the 220V socket module 24 and the audio/video expansion module 22 are electrically connected to each other. Thereby, the lightning protection surge protection module 23 can prevent the lightning conversion weather from damaging the voltage conversion module 21, the audio and video expansion module 22 and the 220V socket module 24.
  • the circuit board 20 of the present invention preferably passes through a plurality of PCBA (Printed Circuit Board Assembly, electricity)
  • the circuit board assembly is formed by a module or a combination form of PCBA.
  • the 220V is connected to the power, and the lightning protection and surge protection module 23 is first passed.
  • the front end protection circuit and function are provided to the device.
  • the protected circuit is then soldered to other circuit modules (the soldering of this item, but all soldering processes or forms on the market), and in other modules, the circuit components of various functional modules are formed.
  • the outer casing 10 is provided with at least one storage slot 12, and the storage slot 11 allows the user to conveniently place items such as a mobile phone, a memory card, a pen, and the like.
  • the outer casing 10 is provided with a groove 13 and a protective cover 14 matching the shape of the groove 13 in the vicinity of each socket 11.
  • the bottom of the protective cover 14 is rotatably connected with the outer casing 10; when the protective cover 14 is placed in the groove 13, the protection The cover 14 covers the socket 11; when the protective cover 14 is disengaged from the recess 13, the socket 11 is exposed.
  • the protective cover 14 can function as a dustproof and leakage proof for the socket 11.
  • the video expansion interface 30 includes an HDMI (High Definition Multimedia Interface) interface, a DVI (Digital Visual Interface) interface, a VGA (Video Graphics Array) interface, and a DP. (Display Port) interface and / or MINI DP (MINI-Display Port) interface.
  • the audio extension interface 40 includes an audio input interface and an audio output interface.
  • the audio input interface is a microphone
  • the audio output interface is a 3.5 mm audio interface and/or a lotus audio interface.
  • the device connection interface 50 is connected to the device end, the video expansion interface 30 is connected to the video display device, and the audio expansion interface 40 is connected to the audio playback device; the video display device and the audio playback device are integrated or independent of each other.
  • the signal is input from the device end, and the signal is expanded and outputted to the video display device or the audio playback device via the audio/video function expansion module 22, that is, the extended output of the video and audio is realized.
  • the device is connected to the device through the device connection interface 50, and then connected to the video display device by the audio/video expansion interface 30.
  • the video signal input by the device reaches the video display device through the video expansion module 22 and the audio/video expansion interface 30, that is, The video extension function of the multi-screen can be realized; on the other hand, the audio signal input by the device end reaches the audio playback device through the audio-video expansion module 22 and the audio expansion interface 40, and the audio input and output functions can be realized.
  • the power supply interface 60 is a plurality of DC voltage power supply interfaces 60, and the DC voltages include 5V, 12V, and/or 19V to meet the needs of different electrical equipment.
  • the power supply interface 60 can include:
  • 5V DC (Direct Current) power supply interface a DC 5V power supply interface is turned out in the voltage conversion module 21, and the DC to DC power supply line can be supplied to various hard disk drives. Used in 5V power supply equipment.
  • 12V DC power supply interface a DC 12V power supply interface is transferred out in the voltage conversion module 21, and the DC to DC power supply line can be provided to the hub HUB, the storage hard disk box and other 12V devices.
  • 19V DC power supply interface In the voltage conversion module 21, a DC 19V power supply interface is turned out, and the 19V device such as a notebook can be fully compatible through the DC power supply line.
  • a plurality of voltage DC output power reserves can be used to convert more medium voltage current supply through the voltage conversion module 21, and more power supply applications can be formed by the device.
  • the power supply interface 60 can also be a USB interface.
  • the device connection interface 50 is a USB interface, a Type-C interface, and/or a MINI DP interface.
  • the device connection interface 50 is used to connect devices such as mobile phones and tablet computers.
  • the video and audio expansion device with power supply function includes a housing and a circuit board, and the circuit board is provided with at least a video and audio expansion module and a voltage conversion module, and the audio and video expansion module and the plurality of audio and video expansion interfaces on the housing
  • the audio expansion interface and the device connection interface are electrically connected to provide a plurality of audio and video expansion functions
  • the voltage conversion module is electrically connected to a plurality of charging interfaces on the outer casing to provide a plurality of charging functions of voltage and current.
  • the invention can not only realize a plurality of audio and video expansion functions, but also can solve the charging requirements of different voltages and currents of various electronic products, and form a kind of combination of a plurality of voltage and current power supply functions and a full range of audio and video expansion functions.
  • the audio and video extension center with audio and video transmission and multiple voltage and current can solve the power supply and video and audio expansion of almost all electronic products in one stop, which is convenient for users.
  • the invention combines the audio and video transmission expansion function and the multi-voltage current conversion function, which not only provides the user with a more convenient experience in daily life, but also saves more costs.

Abstract

一种具有供电功能的影音扩展装置（100），包括：外壳（10）和电路板（20），电路板上至少设有影音扩展模块（22）和电压转换模块（21）；外壳上还设有多种影音扩展接口（30）、至少一个音频扩展接口（40）和至少一个设备连接接口（50），影音扩展接口、音频扩展接口和设备连接接口分别与影音扩展模块相互电性连接；外壳上设有多种供电电压的供电接口（60），供电接口与电压转换模块相互电性连接。该具有供电功能的影音扩展装置不仅能够解决各种电子产品充电需求，还可以实现影音扩展功能，将影音功能扩展模块与多电压电流转换模块组合给用户带来更便捷的使用。

Description

具有供电功能的影音扩展装置 技术领域
本发明涉及电子设备领域，尤其涉及一种具有供电功能的影音扩展装置。
背景技术
随着如今科技的不断进步，电脑与手机等智能终端的不断普及，人们对于伴随其技术的影音传输扩展和多电压电流转换的使用需求更频繁；但现有的技术中，影音传输的扩展与多电压电流转换的技术总是作为独立分开的使用，伴随而来的就是我们对日常办公桌面各种电子设备的线路繁杂的无奈。
综上可知，现有技术在实际使用上显然存在不便与缺陷，所以有必要加以改进。
发明内容
针对上述的缺陷，本发明的目的在于提供一种具有供电功能的影音扩展装置，不仅能够解决各种电子产品充电需求，还可以实现影音扩展功能，将影音功能扩展模块与多电压电流转换模块组合给用户带来更便捷的使用。
为了实现上述目的，本发明提供一种具有供电功能的影音扩展装置，包括外壳和电路板，所述电路板上至少设有影音扩展模块和电压转换模块；所述外壳上还设有多种影音扩展接口、至少一个音频扩展接口和至少一个设备连接接口，所述影音扩展接口、所述音频扩展接口和所述设备连接接口分别与所述影音扩展模块相互电性连接；所述外壳上设有多种供电电压的供电接口，所述供电接口与所述电压转换模块相互电性连接。
根据本发明所述的影音扩展装置，所述影音扩展接口包括HDMI接口、DVI接口、VGA接口、DP接口和/或MINI DP接口。
根据本发明所述的影音扩展装置，所述音频扩展接口包括音频输入接口和音频输出接口。
根据本发明所述的影音扩展装置，所述音频输入接口为麦克风，所述音频输出接口为3.5mm音频接口和/或莲花音频接口。
根据本发明所述的影音扩展装置，所述供电接口为多种直流电压的供电接 口，所述直流电压包括5V、12V和/或19V；和/或
所述供电接口为USB接口。
根据本发明所述的影音扩展装置，所述设备连接接口为USB接口、Type-C接口和/或MINI DP接口。
根据本发明所述的影音扩展装置，所述设备连接接口连接设备端，所述影音扩展接口连接视频显示装置，所述音频扩展接口连接音频播放装置；所述视频显示装置和所述音频播放装置为一体结构或相互独立存在。
根据本发明所述的影音扩展装置，所述电路板还包括防雷防浪涌保护模块，外部电源的电流经过所述防雷防浪涌保护模块后再进入所述影音扩展模块和所述电压转换模块。
根据本发明所述的影音扩展装置，所述电路板上还设有220V插座模块，所述外壳上设有至少一个插座，所述插座与所述220V插座模块相互电性连接；所述防雷防浪涌保护模块分别与所述220V插座模块和所述电压转换模块相互电性连接，并且所述220V插座模块与所述影音扩展模块相互电性连接。
根据本发明所述的影音扩展装置，所述外壳上设有至少一个置物槽；和/或
所述外壳在每个所述插座附近设有凹槽和与所述凹槽形状相匹配的防护盖，所述防护盖的底部与所述外壳可旋转连接；所述防护盖置于所述凹槽中时，所述防护盖覆盖所述插座；所述防护盖脱离所述凹槽时，露出所述插座。
本发明具有供电功能的影音扩展装置包括外壳和电路板，所述电路板上至少设有影音扩展模块和电压转换模块，所述影音扩展模块与外壳上的多种影音扩展接口、音频扩展接口和设备连接接口电性连接，以提供多种影音扩展功能；所述电压转换模块与外壳上的多种充电接口电性连接，以提供多种电压与电流的充电功能。借此，本发明不仅能实现多种影音扩展功能，而且可解决各种电子产品的不同电压和电流的充电需求，通过多种电压与电流的供电功能与全方位的影音扩展功能组合形成一种可带影音传输与多种电压电流的影音扩展中心，一站式解决几乎所有电子产品的供电和影音扩展，方便了用户使用。
附图说明
图1是本发明优选具有供电功能的影音扩展装置的立体图之一；
图2是本发明优选具有供电功能的影音扩展装置的立体图之二；
图3是本发明优选具有供电功能的影音扩展装置的电路板原理框图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1～图3所示，本发明具有供电功能的影音扩展装置100包括外壳10和电路板20，所述电路板20上至少设有影音扩展模块22和电压转换模块21；所述外壳10上还设有多种影音扩展接口30、至少一个音频扩展接口40和至少一个设备连接接口50，所述影音扩展接口30、音频扩展接口40和设备连接接口50分别与影音扩展模块22相互电性连接，以为各种电子设备提供影音扩展功能；所述外壳10上设有多种供电电压的供电接口60，供电接口60与电压转换模块21相互电性连接，以为各种电子设备提供多种电压与电流的充电功能。
本发明通过将影音功能扩展与多种电压电流转换组合到一块，形成一种可以具有供电功能的影音扩展装置。很好的将这两个功能组合到一块，尤其是用在办公桌上给PC(Personal Computer，个人电脑)端提供了一个多屏扩展连接装置以及音频扩展功能，并且还能给PC，手机和平板等移动电设备提供一个供电接口，使用户在日常使用中变得更为便捷。
优选的是，电路板20还包括防雷防浪涌保护模块23，外部电源的电流经过防雷防浪涌保护模块23后再进入电压转换模块21和影音扩展模块22，所述外部电源优选为220V市电。防雷防浪涌保护模块23可防止雷雨天气损坏电压转换模块21和影音扩展模块22，当电气回路或者通信线路中因为外界的干扰突然产生尖峰电流或者电压时，防雷防浪涌保护模块23能在极短的时间内导通分流，从而避免浪涌对回路中其他设备的损害。所述电路板20上还设有220V插座模块24，外壳10上设有至少一个插座11，插座11与220V插座模块24相互电性连接，用于为电子设备提供220V电压供电；防雷防浪涌保护模块23分别与220V插座模块24和电压转换模块21相互电性连接，并且220V插座模块24与影音扩展模块22相互电性连接。借此，防雷防浪涌保护模块23可防止雷雨天气损坏电压转换模块21、影音扩展模块22和220V插座模块24。
本发明电路板20优选通过多个PCBA(Printed Circuit Board Assembly，电 路板总成)模块或组合形式PCBA形成，由220V接电，先通过防雷防浪涌保护模块23，在这阶段中，给设备提供前端保护电路与功能。再由保护过的电路通过与其他电路模块的焊接(此项的焊接当中，可是市面上所有焊接工艺或形式)，进而在其他的模块中，形成多种功能模块的电路组成。
优选的是，外壳10上设有至少一个置物槽12，所述置物槽11中可以供用户方便地放置手机、存储卡、笔等物品。
外壳10在每个插座11附近设有凹槽13和与凹槽13形状相匹配的防护盖14，防护盖14的底部与外壳10可旋转连接；防护盖14置于凹槽13中时，防护盖14覆盖插座11；防护盖14脱离凹槽13时，露出插座11。所述防护盖14可以对插座11起到防尘防漏电的功能。
优选的是，所述影音扩展接口30包括HDMI(High Definition Multimedia Interface，数字化音视频接口)接口、DVI(Digital Visual Interface，数字视频接口)接口、VGA(Video Graphics Array，视频图形阵列)接口、DP(Display Port，显示接口)接口和/或MINI DP(MINI-Display Port，小型显示接口)接口等。所述音频扩展接口40包括音频输入接口和音频输出接口。所述音频输入接口为麦克风，所述音频输出接口为3.5mm音频接口和/或莲花音频接口。
优选的是，设备连接接口50连接设备端，影音扩展接口30连接视频显示装置，音频扩展接口40连接音频播放装置；视频显示装置和音频播放装置为一体结构或相互独立存在。由所述设备端输入信号，经由所述影音功能扩展模块22将信号扩展输出至视频显示装置或音频播放装置，即实现影音的扩展输出。具体而言，通过设备连接接口50与设备端连接，再由影音扩展接口30连接至视频显示装置，设备端输入的视频信号通过所述影音扩展模块22和影音扩展接口30到达视频显示装置，即可实现多屏的视频扩展功能；另一方面，设备端输入的音频信号通过所述影音扩展模块22和音频扩展接口40到达音频播放装置，即可实现音频的输入输出功能。
优选的是，所述供电接口60为多种直流电压的供电接口60，所述直流电压包括5V、12V和/或19V，以适应不同用电设备的需求。
具体而言，所述供电接口60可以包括：
1)5V的DC(Direct Current，直流电)供电接口：在电压转换模块21中转出一个DC 5V的供电接口，通过DC转DC的电源线可提供给各种硬盘驱动器 等5V的供电设备中使用。
2)12V的DC供电接口：在电压转换模块21中转出一个DC 12V的供电接口，通过DC转DC的电源线可提供给集线器HUB，存储硬盘盒等多种12V设备使用。
3)19V的DC供电接口：在电压转换模块21中转出一个DC 19V的供电接口，通过DC电源线就可将笔记本等19V的设备全部兼容使用。
多种电压的DC输出供电储备，可通过该电压转换模块21中，转换出更多中电压电流的供应，通过该装置可形成更多的供电应用。当然，所述供电接口60也可为USB接口。
优选的是，所述设备连接接口50为USB接口、Type-C接口和/或MINI DP接口。所述设备连接接口50用于连接手机、平板电脑等设备。
综上所述，本发明具有供电功能的影音扩展装置包括外壳和电路板，所述电路板上至少设有影音扩展模块和电压转换模块，所述影音扩展模块与外壳上的多种影音扩展接口、音频扩展接口和设备连接接口电性连接，以提供多种影音扩展功能；所述电压转换模块与外壳上的多种充电接口电性连接，以提供多种电压与电流的充电功能。借此，本发明不仅能实现多种影音扩展功能，而且可解决各种电子产品的不同电压和电流的充电需求，通过多种电压与电流的供电功能与全方位的影音扩展功能组合形成一种可带影音传输与多种电压电流的影音扩展中心，一站式解决几乎所有电子产品的供电和影音扩展，方便了用户使用。本发明结合了影音传输扩展功能与多电压电流转换功能，不仅给用户在日常生活中提供了更方便的体验，也节省了更多的成本。
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。

Claims (10)

  1. 一种具有供电功能的影音扩展装置，其特征在于，包括外壳和电路板，所述电路板上至少设有影音扩展模块和电压转换模块；所述外壳上还设有多种影音扩展接口、至少一个音频扩展接口和至少一个设备连接接口，所述影音扩展接口、所述音频扩展接口和所述设备连接接口分别与所述影音扩展模块相互电性连接；所述外壳上设有多种供电电压的供电接口，所述供电接口与所述电压转换模块相互电性连接。
  2. 根据权利要求1所述的影音扩展装置，其特征在于，所述影音扩展接口包括HDMI接口、DVI接口、VGA接口、DP接口和/或MINI DP接口。
  3. 根据权利要求1所述的影音扩展装置，其特征在于，所述音频扩展接口包括音频输入接口和音频输出接口。
  4. 根据权利要求3所述的影音扩展装置，其特征在于，所述音频输入接口为麦克风，所述音频输出接口为3.5mm音频接口和/或莲花音频接口。
  5. 根据权利要求1所述的影音扩展装置，其特征在于，所述供电接口为多种直流电压的供电接口，所述直流电压包括5V、12V和/或19V；和/或
    所述供电接口为USB接口。
  6. 根据权利要求1所述的影音扩展装置，其特征在于，所述设备连接接口为USB接口、Type-C接口和/或MINI DP接口。
  7. 根据权利要求1所述的影音扩展装置，其特征在于，所述设备连接接口连接设备端，所述影音扩展接口连接视频显示装置，所述音频扩展接口连接音频播放装置；所述视频显示装置和所述音频播放装置为一体结构或相互独立存在。
  8. 根据权利要求1～7任一项所述的影音扩展装置，其特征在于，所述电路板还包括防雷防浪涌保护模块，外部电源的电流经过所述防雷防浪涌保护模块后再进入所述影音扩展模块和所述电压转换模块。
  9. 根据权利要求8所述的影音扩展装置，其特征在于，所述电路板上还设有220V插座模块，所述外壳上设有至少一个插座，所述插座与所述220V插座模块相互电性连接；所述防雷防浪涌保护模块分别与所述220V插座模块和所述电压转换模块相互电性连接，并且所述220V插座模块与所述影音扩展模块相互 电性连接。
  10. 根据权利要求1所述的供电装置，其特征在于，所述外壳上设有至少一个置物槽；和/或
    所述外壳在每个所述插座附近设有凹槽和与所述凹槽形状相匹配的防护盖，所述防护盖的底部与所述外壳可旋转连接；所述防护盖置于所述凹槽中时，所述防护盖覆盖所述插座；所述防护盖脱离所述凹槽时，露出所述插座。
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