WO2021032084A1 - type-C供电线材、头戴显示设备和虚拟现实系统 - Google Patents

type-C供电线材、头戴显示设备和虚拟现实系统 Download PDF

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Publication number
WO2021032084A1
WO2021032084A1 PCT/CN2020/109797 CN2020109797W WO2021032084A1 WO 2021032084 A1 WO2021032084 A1 WO 2021032084A1 CN 2020109797 W CN2020109797 W CN 2020109797W WO 2021032084 A1 WO2021032084 A1 WO 2021032084A1
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type
power supply
switch
power
supply wire
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PCT/CN2020/109797
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English (en)
French (fr)
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邓雪冰
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青岛小鸟看看科技有限公司
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Publication of WO2021032084A1 publication Critical patent/WO2021032084A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • 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
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • 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
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter

Definitions

  • the invention relates to the technical field of power supply wires, in particular to a type-C power supply wire, a head-mounted display device and a virtual reality system.
  • USB Type-C As a new type of connector specification, the USB Type-C specification is easy to use and powerful because of its support for positive and negative insertion, ultra-high-speed communication, and high-power output. It is gradually being widely used in existing portable devices.
  • the existing full-function type-C cable can realize audio and video transmission and supply power to the slave device.
  • the mobile phone is used as the host device and is connected to the head of the virtual reality system through a full-function type-C cable.
  • Wearable display devices can power the headset display devices and transmit audio and video; however, the existing type-C cables usually only have one-to-one power supply capability and lack the switching function. Due to the high power consumption of the headset display devices of the virtual reality system The mobile phone itself consumes power, so this application method will cause the mobile phone to power down faster, affect the service life of the mobile phone, and have a great impact on the virtual reality experience.
  • a type-C power supply wire which includes a type-C male connector for connecting to a host device, and a transmission line connected with the type-C male connector, the type-C male connector A first switch is provided between the power supply pin of and the transmission line;
  • the power supply wire also includes: a control chip and a type-C female socket for plugging in a power adapter;
  • the power pin of the type-C female socket is connected to the transmission line through a second switch; the control chip is connected to the first switch, the second switch, the type-C female socket, and the type-C female socket.
  • the control chip When the type-C female socket is not plugged into the power adapter, the control chip turns on the first switch and turns off the second switch, so that the host device supplies power to the slave device through the transmission line; when the type-C female socket When a power adapter is inserted, the control chip turns off the first switch and turns on the second switch, so that the power adapter supplies power to the slave device through the transmission line.
  • the power pin of the type-C female socket is also connected to the power pin of the type-C male connector through a third switch;
  • the control chip is also connected to the third switch;
  • control chip is also used to control the host device to stop supplying power to the slave device and turn on the third switch so that the power adapter is simultaneously Host device power supply.
  • a distance sensing device is provided around the type-C female seat, and the control chip is connected to the distance sensing device; when the proximity sensing device detects an object approaching, the control chip is connected to the The first switch informs the host device to supply power to the slave device, and turns off the second switch and the third switch.
  • the distance sensing device is arranged in a circle around the type-C female seat, and an interrupt signal is used to inform the control chip that an object is approaching.
  • the first to third switches are MOS transistors or triodes.
  • the type-C female socket supports the CC power supply protocol and the BC1.2 protocol, and the control chip detects whether a power adapter is inserted through the D+ and D- pins of the type-C female socket.
  • the SUB1, SUB2, D+, D-, SSTX+, SSTX-, SSRX+ and SSRX- pins of the type-C male header are directly connected to the transmission line without passing through the control chip.
  • the power supply wire further includes a standard type-C interface, and the standard type-C interface is connected to the end of the transmission line.
  • a head-mounted display device is provided, and the head-mounted display device is connected with the type-C power supply wire as described in any of the above.
  • a virtual reality system includes a head-mounted display device, a host device, and the type-C power supply wire described in any one of the above, the head-mounted display device and The host device is connected through the type-C power supply wire.
  • the type-C power supply wire of this application adds a control chip and a type-C female socket.
  • the type-C female socket can be connected to an external power adapter.
  • the control chip can control the on-off state of each switch to make the connected power supply
  • the adapter replaces the host device to supply power to slave devices such as head-mounted display devices, thereby saving the power of the host device, improving the endurance and battery life of host devices such as mobile phones, and improving the user's virtual reality experience.
  • FIG. 1 is a schematic diagram of a type-C power supply wire connecting a host device and a head-mounted display device according to an embodiment of the present invention
  • Fig. 2 is an enlarged schematic diagram of the type-C male connector side of the type-C power supply wire in Fig. 1;
  • FIG. 3 is a block diagram of a type-C male side circuit board design of a type-C power supply wire provided by an embodiment of the present invention
  • 100 type-C power supply wire
  • 110 type-C male
  • 120 type-C female
  • 130 control chip
  • 140 welding area
  • 150 distance sensing device
  • 200 host equipment
  • 300 Slave device
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the technical idea of the present invention is to add a control chip and a type-C female socket to the type-C power supply wire, connect the external power adapter through the type-C female socket, and use the control chip to control the on-off state of each switch , So that the connected power adapter replaces the host device to supply power to slave devices such as head-mounted display devices, thereby saving the power of the host device, improving the endurance and battery life of host devices such as mobile phones, and improving the user's virtual reality experience.
  • Figures 1 to 3 schematically show an embodiment of the type-C power supply wire of the present application, wherein Figure 1 is a schematic diagram of a type-C power supply wire provided by an embodiment of the present invention connecting a host device and a head-mounted display device Figure 2 is an enlarged schematic diagram of the type-C male side of the type-C power supply wire in Figure 1; Figure 3 is a block diagram of the type-C male side circuit board design of a type-C power supply wire provided by an embodiment of the present invention .
  • the type-C power supply wire 100 of the present application includes a type-C male connector 110 for connecting to a host device 200 (such as a mobile phone), and a transmission line connected to the type-C male connector 110.
  • the transmission line is connected to the type-C male connector 110 through the welding area 140 (see FIG. 3), and the end of the transmission line is used to connect the powered slave device 300 (for example, a head-mounted display device).
  • a first switch Q1 is provided between the power pin of the type-C male connector 110 and the transmission line (welding area 140).
  • the type-C power supply wire 100 further includes: a control chip 130 and a type-C female socket 120 for plugging in a power adapter.
  • the control chip 130 is respectively connected to the configuration channel CC1_U of the type-C male header 110 and the configuration channel CC1_D of the transmission line to realize positive and negative plug detection, identify the current and voltage that the USB connection can provide, and realize the data between USB devices and the power supply VBUS
  • the control chip 130 may use a common CC logic chip.
  • the power pin of the type-C female socket 120 is connected to the transmission line (welding area 140) through the second switch Q2; the control chip 130 is also connected with the first switch, the second switch and the type-C female socket 120.
  • the control chip 130 When the type-C female socket 120 is not plugged into the power adapter, the control chip 130 turns on the first switch Q1 and turns off the second switch Q2, so that the host device 200 supplies power to the slave device through the transmission line; when the type-C female socket 120 has power When the adapter is inserted, the control chip 130 turns off the first switch Q1 and turns on the second switch Q2, so that the power adapter supplies power to the slave device through the transmission line.
  • the type-C power supply wire 100 of the present application can be connected to an external power adapter through the additional type-C female socket 120, and the control chip 130 can manage the on and off of the first switch Q1 and the second switch Q2 to make the power supply
  • the adapter replaces the host device 200 to supply power to the slave device 300, so as to improve the endurance and battery life of the host device 200, and at the same time improve the user's virtual reality experience.
  • the power pin of the type-C female socket 120 is also connected to the power pin of the type-C male socket 110 through the third switch Q3; the control chip 130 is also connected to the third switch Q3 Connect, control its on and off.
  • the control chip 130 can also notify the host device 200 to stop supplying power to the slave device through CC1_U, and turn on the third switch Q3, so that the power adapter can supply power to the host device 200 at the same time.
  • the bidirectional power supply function of the type-C power supply wire 100 can further improve the endurance of the host device 200, so that when a mobile phone or the like is used as the host device 200, it can still be charged even if the type-C interface is occupied.
  • the control chip 130 can notify the host device 200 to stop supplying power to the slave device through CC1_U when the power adapter is connected, so as to maintain the power supply protocol specification.
  • a distance sensing device 150 is provided around the type-C female base 120, and the control chip 130 is also connected to the distance sensing device 150.
  • the control chip 130 turns on the first switch Q1 to notify the host device 200 to supply power to the slave device, and turns off the second switch Q2 and the third switch Q3 to restore to the host device 200 in advance The state of supplying power to the slave device 300 to prevent the back-end slave device 300 from being powered off when the power adapter is suddenly pulled out.
  • this type-C power supply wire 100 changes the power supply body, if the power adapter is suddenly unplugged during use, the host device 200 will need to pass a short time interval (milliseconds) before it can re-power the slave device 300. This may This will cause the slave device 300 to power off. Therefore, the present application sets a distance sensing device 150 to detect the approach of an object to obtain the risk of the power adapter being unplugged, and to trigger the switch state of the control chip 130 to restore to the host device 200 to supply power to the slave device 300 in advance, eliminating the interruption Electricity hazards.
  • the distance sensing device 150 is arranged in a circle around the type-C female base 120 to form a distance sensing area to detect the approach of an object (human hand) from various directions, and the distance sensing device 150 informs the control through an interrupt signal
  • the chip 130 has an object approaching.
  • the first to third switches are MOS transistors.
  • other devices with switching functions such as triodes, etc., can also be used in this application, and will not be repeated here.
  • the type-C female socket 120 supports the CC power supply protocol and the BC1.2 protocol. Through the BC1.2 protocol, the control chip 130 can detect whether there is power supply through the D+ and D- pins of the type-C female socket 120 The adapter is inserted. Of course, the type-C female socket 120 can also inform the control chip 130 whether a power adapter is connected by using other protocols and other pins (such as the CC pin).
  • the SUB1, SUB2, D+, D-, SSTX+, SSTX-, SSRX+ and SSRX- pins of the type-C male connector 110 are directly connected to the transmission line (welded Area 140) is connected, that is, the 8 communication pins are not affected by the control chip 130, and the direct connection between the host device 200 and the slave device 300 is realized.
  • the type-C power supply wire 100 further includes a standard type-C interface, and the standard type-C interface is connected at the end of the transmission line to connect a slave device 300 such as a head-mounted display device.
  • This application also discloses a head-mounted display device, which is connected with the type-C power supply wire 100 as any one of the above, so that when the head-mounted display device is used, it can also be powered by an externally inserted power adapter , To save the power of the host device 200.
  • the head-mounted display device can be fixedly connected to the aforementioned type-C power supply wire 100; or, the head-mounted display device can be detachably connected to the aforementioned type-C power supply wire 100 through a standard type-C interface (see FIG. 1).
  • the virtual reality system includes a head-mounted display device, a host device 200, and the type-C power supply wire 100 as described above.
  • the head-mounted display device and the host device 200 are powered by type-C
  • the wire 100 is connected.
  • the control chip 130 detects the mobile phone access through CC1_U, then turns on Q1, turns off Q2 and Q3, and makes the mobile phone give The back-end supplies power from the device 300 (head-mounted display device), and communicates with the head-mounted display device through CC1_D, and feeds back the communication result to the mobile phone. After the handshake is successful, the mobile phone transmits audio and video signals to the head-mounted display device through the high-speed signal channel and supplies power .
  • the control chip 130 will negotiate the voltage and current with the power adapter. After the negotiation is completed, Q2 will be turned on, Q1 will be turned off, and the power adapter will display to the headset. The device is powered, and at the same time, through CC1_U, negotiate with the mobile phone to inform the mobile phone to stop power supply, and turn on Q3 to charge the mobile phone in reverse, so as to realize the two-way power supply of the external power adapter.
  • control chip 130 detects the interrupt signal, it informs the mobile phone through CC1_U that the mobile phone needs to be powered, and Turn on Q1, cut off Q2 and Q3, and switch back to the mobile phone to supply power, so as not to suddenly unplug the power adapter and cause the back-end equipment to power off.
  • this application improves the type-C power supply wire type-C male side circuit board, adds a type-C female socket that can be connected to a power adapter, and a control chip that can control the state of each switch, thereby It can be connected to a power adapter, and the back-end slave device can be powered through the power adapter to increase the endurance and improve the virtual reality experience.
  • the type-C power supply wire can also realize the two-way power supply function to the front-end host device and the back-end slave device at the same time, which further improves the endurance of the host device; and, it is learned by setting a distance sensing device The risk of the power adapter being unplugged will be restored to the power supply state of the host device in advance to avoid the problem of sudden power failure from the back-end slave device.

Abstract

一种type-C供电线材、头戴显示设备和虚拟现实系统。该供电线材（100）包括用于连接主机设备（200）的type-C公头（110）以及传输线，type-C公头（110）的电源引脚与传输线之间设置有第一开关（Q1）；该供电线材（100）还包括：控制芯片（130）和用于插入电源适配器的type-C母座（120）；type-C母座（120）的电源引脚通过第二开关（Q2）连接至传输线；控制芯片（130）连接第一开关（Q1）、第二开关（Q2）、type-C母座（120）、type-C公头（110）的配置通道、以及传输线的配置通道；当type-C母座（120）没有插入电源适配器时，控制芯片（130）接通第一开关（Q1）、断开第二开关（Q2），使主机设备（200）通过传输线为从设备（300）供电；当type-C母座（120）有电源适配器插入时，控制芯片（130）断开第一开关（Q1）、接通第二开关（Q2），使电源适配器通过传输线为从设备（300）供电。

Description

type-C供电线材、头戴显示设备和虚拟现实系统 技术领域
本发明涉及供电线材技术领域，特别涉及一种type-C供电线材、头戴显示设备和虚拟现实系统。
背景技术
USB Type-C规范作为一种新型的连接器规范，因其支持正反插、超高速率通信和高功率输出，因而使用方便、功能强大，在现有的便携设备中逐渐得到广泛使用。
现有的全功能type-C线可以实现音视频传输和给从设备供电，比如，在一些虚拟现实系统中，手机作为主机设备，通过一根全功能type-C线连接到虚拟现实系统的头戴显示设备，可以给头戴显示设备供电和传输音视频；但是，现有的type-C线通常只有一对一的供电能力，缺少切换功能，由于虚拟现实系统的头戴显示设备功耗很大，而且手机本身也在耗电，所以这种应用方式会造成手机加速掉电，影响手机的使用寿命，且对虚拟现实使用体验有很大的影响。
发明内容
鉴于现有技术type-C线仅能一对一供电，缺少切换功能的问题，提出了本发明的一种type-C供电线材、头戴显示设备和虚拟现实系统，以便克服上述问题。
为了实现上述目的，本发明采用了如下技术方案：
依据本发明的一个方面，提供了一种type-C供电线材，包括用于连接主机设备的type-C公头，以及与所述type-C公头连接的传输线，所述type-C公头的电源引脚与所述传输线之间设置有第一开关；
所述供电线材还包括：控制芯片和用于插入电源适配器的type-C母座；
所述type-C母座的电源引脚通过第二开关连接至所述传输线；所述控制芯片连接所述第一开关、所述第二开关、所述type-C母座、所述type-C公头的配置通道、以及所述传输线的配置通道；
当所述type-C母座没有插入电源适配器时，所述控制芯片接通第一开关、断开第二开关，使所述主机设备通过传输线为从设备供电；当所述type-C母座有电源适配器插入时，所述控制芯片断开第一开关、接通第二开关，使所述电源适配器通过传输线为从设备供电。
可选地，所述type-C母座的电源引脚还通过第三开关连接至所述type-C公头的电源引脚；所述控制芯片还与所述第三开关连接；
当所述type-C母座有电源适配器插入时，所述控制芯片还用于控制所述主机设备停止为从设备供电，并接通所述第三开关，使所述电源适配器同时为所述主机设备供电。
可选地，所述type-C母座的周围设置有距离感应装置，所述控制芯片与所述距离感应装置连接；所述距离感应装置侦测到物体接近时，所述控制芯片接通所述第一开关，通知所述主机设备为从设备供电，并断开所述第二开关和第三开关。
可选地，所述距离感应装置围绕所述type-C母座设置有一圈，通过中断信号告知所述控制芯片有物体接近。
可选地，所述第一至第三开关为MOS管或三极管。
可选地，所述type-C母座支持CC供电协议和BC1.2协议，所述控制芯片通过所述type-C母座的D+、D-引脚检测是否有电源适配器插入。
可选地，所述type-C公头的SUB1、SUB2、D+、D-、SSTX+、SSTX-、SSRX+和SSRX-引脚不经所述控制芯片，直接与所述传输线连接。
可选地，所述供电线材还包括标准type-C接口，所述标准type-C接口连接在所述传输线的末端。
依据本发明的另一个方面，提供了一种头戴显示设备，所述头戴显示设备连接有如上任一项所述的type-C供电线材。
依据本发明的又一个方面，提供了一种虚拟现实系统，所述虚拟现实系统包括头戴显示设备、主机设备和如上任一项所述的type-C供电线材，所述头戴显示设备和所述主机设备通过所述type-C供电线材连接。
综上所述，本发明的有益效果是：
本申请的type-C供电线材中增加了控制芯片和type-C母座，type-C母座可接入来自外部的电源适配器，控制芯片能够控制各开关的通断状态，使接入的电源适配器代 替主机设备为头戴显示设备等从设备供电，从而节省主机设备的电量，提高例如手机等主机设备的续航能力和电池使用寿命，同时改善用户的虚拟现实使用体验。
附图说明
图1为本发明一个实施例提供的一种type-C供电线材连接主机设备和头戴显示设备的示意图；
图2为图1中type-C供电线材type-C公头侧的放大示意图；
图3为本发明一个实施例提供的一种type-C供电线材的type-C公头侧电路板设计框图；
图中，100、type-C供电线材；110、type-C公头；120、type-C母座；130、控制芯片；140、焊接区域；150、距离感应装置；200、主机设备；300、从设备。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
本发明的技术构思是：在type-C供电线材中增加控制芯片和type-C母座，通过type-C母座来接入来自外部的电源适配器，并利用控制芯片控制各开关的通断状态，使接入的电源适配器代替主机设备为头戴显示设备等从设备供电，从而节省主机设备的电量，提高例如手机等主机设备的续航能力和电池使用寿命，同时改善用户的虚拟现实使 用体验。
图1至3示意性地示出了本申请type-C供电线材的实施例，其中，图1为本发明一个实施例提供的一种type-C供电线材连接主机设备和头戴显示设备的示意图；图2为图1中type-C供电线材type-C公头侧的放大示意图；图3为本发明一个实施例提供的一种type-C供电线材的type-C公头侧电路板设计框图。
如图1至图3所示，本申请的type-C供电线材100，包括用于连接主机设备200(例如手机)的type-C公头110，以及与type-C公头110连接的传输线。该传输线通过焊接区域140(见图3)与type-C公头110连接，其末端用于连接被供电的从设备300(例如头戴显示设备)。
如图3设计框图所示，本type-C供电线材100的中，type-C公头110的电源引脚与传输线(焊接区域140)之间设置有第一开关Q1。而且，本type-C供电线材100还包括：控制芯片130和用于插入电源适配器的type-C母座120。
控制芯片130分别连接type-C公头110的配置通道CC1_U、传输线的配置通道CC1_D，以实现正反插检测、识别USB连接可提供的电流和电压大小、以及实现USB设备间数据与电源VBUS的连接建立和管理等，控制芯片130可采用常见的CC逻辑芯片。
type-C母座120的电源引脚通过第二开关Q2连接至传输线(焊接区域140)；控制芯片130还与第一开关、第二开关和type-C母座120连接。
当type-C母座120没有插入电源适配器时，控制芯片130接通第一开关Q1、断开第二开关Q2，使主机设备200通过传输线为从设备供电；当type-C母座120有电源适配器插入时，控制芯片130断开第一开关Q1、接通第二开关Q2，使电源适配器通过传输线为从设备供电。
从而，本申请的type-C供电线材100，可通过增设的type-C母座120接入外部电源适配器，并借助控制芯片130对第一开关Q1和第二开关Q2的通断管理，使电源适配器代替主机设备200为从设备300供电，以提高主机设备200的续航能力和电池寿命，同时改善用户的虚拟现实使用体验。
在本实施例中，如图3所示，type-C母座120的电源引脚还通过第三开关Q3连接至type-C公头110的电源引脚；控制芯片130还与第三开关Q3连接，控制其通断。
当type-C母座120有电源适配器插入时，控制芯片130还能够通过CC1_U告知主机设备200停止为从设备供电，并接通第三开关Q3，使电源适配器同时为主机设备200供电。本type-C供电线材100的这一双向供电功能，可以进一步提高主机设备200的续航能力，使手机等作为主机设备200时，即便type-C接口被占用也仍然能够进行充电。此外，实际应用时，不论是否设置有第三开关Q3，控制芯片130均可以在接入电源适配器时通过CC1_U告知主机设备200停止为从设备供电，以保持供电协议规范。
在本实施例中，如图3所示，type-C母座120的周围设置有距离感应装置150，控制芯片130还与距离感应装置150连接。距离感应装置150侦测到物体接近时，控制芯片130接通第一开关Q1，通知主机设备200为从设备供电，并断开第二开关Q2和第三开关Q3，以提前恢复至主机设备200为从设备300供电的状态，以避免电源适配器被突然拔掉时后端从设备300遭遇断电。
由于本type-C供电线材100改变了供电主体，因此使用时，若是突然拔掉电源适配器，主机设备200还需要经过短暂的时间间隔(毫秒级)后才可重新为从设备300供电，这可能会导致从设备300断电。因此，本申请设置距离感应装置150，以侦测物体接近来获取电源适配器被拔掉的风险，并以此触发控制芯片130切换开关状态，提前恢复至主机设备200为从设备300供电，排除断电隐患。
在本申请的一个实施例中，距离感应装置150围绕type-C母座120设置有一圈，形成距离感应区域，从各方向侦测物体(人手)的接近，距离感应装置150通过中断信号告知控制芯片130有物体接近。
在本实施例中，第一至第三开关为MOS管。当然，其他具有开关功能的器件，如三极管等也可用于本申请，在此不一一赘述。
在本实施例中，type-C母座120支持CC供电协议和BC1.2协议，通过BC1.2协议，控制芯片130可以通过type-C母座120的D+、D-引脚检测是否有电源适配器插入。当然，type-C母座120也可以通过利用其他协议和其他引脚(如CC引脚)告知控制芯片130是否有电源适配器接入。
在本实施例中，如图3所示，type-C公头110的SUB1、SUB2、D+、D-、SSTX+、SSTX-、SSRX+和SSRX-引脚不经控制芯片130，直接与传输线(焊接区域140)连接，即8个通信引脚不受控制芯片130影响，实现主机设备200和从设备300的直通 连接。
在本实施例中，如图1所示，type-C供电线材100还包括标准type-C接口，标准type-C接口连接在传输线的末端，以连接头戴显示设备等从设备300。
本申请还公开了一种头戴显示设备，该头戴显示设备连接有如上任一项的type-C供电线材100，从而，使用该头戴显示设备时，还可通过外部插入的电源适配器进行供电，节省主机设备200的电量。该头戴显示设备上可固定连接上述type-C供电线材100；或者，该头戴显示设备可以通过标准type-C接口可拆卸地连接上述type-C供电线材100(参考图1所示)。
本申请还公开了一种虚拟现实系统，该虚拟现实系统包括头戴显示设备、主机设备200和如上任一项的type-C供电线材100，头戴显示设备和主机设备200通过type-C供电线材100连接。
结合图1至图3所示，说明本申请type-C供电线材100的工作原理如下：
当没有电源适配器插入的情况下，type-C公头110接入主机设备200(手机)，控制芯片130通过CC1_U侦测到手机接入，之后将Q1打开，将Q2、Q3截止，使手机给后端从设备300(头戴显示设备)供电，并通过CC1_D跟头戴显示设备通讯，将通讯结果反馈到手机，握手成功后手机将音视频信号通过高速信号通道传给头戴显示设备并供电。
在如上状态基础上，如果侦测到type-C母座120有电源适配器插入，控制芯片130会跟电源适配器协商电压电流，协商完成后将Q2打开，将Q1截止，通过电源适配器给头戴显示设备供电，同时通过CC1_U跟手机协商，告知手机停止供电，并将Q3打开反向给手机充电，从而实现外接电源适配器的双向供电。
在上述电源适配器接入状态下，如果侦测到距离感应区有物体接近，就认为存在拔掉电源适配器的风险，控制芯片130侦测到该中断信号后，通过CC1_U告知手机需要手机供电，并打开Q1，切断Q2和Q3，切换回手机供电，以免突然拔掉电源适配器造成后端设备断电。
综上所述，本申请通过对type-C供电线材type-C公头侧电路板的改进，增设了可接入电源适配器的type-C母座，以及可控制各开关状态的控制芯片，从而可以接入电源适配器，并通过电源适配器为后端从设备供电，提高续航能力并改善虚拟现实使用体 验。在本申请优选实施例中，该type-C供电线材还可实现同时对前端主机设备和后段从设备的双向供电功能，更进一步地提高主机设备的续航能力；以及，通过设置距离感应装置获知电源适配器被拔掉的风险，提前恢复至主机设备供电的状态，避免后端从设备遭遇突然断电的问题。
以上所述，仅为本发明的具体实施方式，在本发明的上述教导下，本领域技术人员可以在上述实施例的基础上进行其他的改进或变形。本领域技术人员应该明白，上述的具体描述只是更好的解释本发明的目的，本发明的保护范围以权利要求的保护范围为准。

Claims (10)

  1. 一种type-C供电线材，包括用于连接主机设备的type-C公头，以及与所述type-C公头连接的传输线，其特征在于，
    所述type-C公头的电源引脚与所述传输线之间设置有第一开关；
    所述供电线材还包括：控制芯片和用于插入电源适配器的type-C母座；
    所述type-C母座的电源引脚通过第二开关连接至所述传输线；所述控制芯片连接所述第一开关、所述第二开关、所述type-C母座、所述type-C公头的配置通道、以及所述传输线的配置通道；
    当所述type-C母座没有插入电源适配器时，所述控制芯片接通所述第一开关、断开所述第二开关，使所述主机设备通过传输线为从设备供电；当所述type-C母座有电源适配器插入时，所述控制芯片断开所述第一开关、接通所述第二开关，使所述电源适配器通过传输线为从设备供电。
  2. 根据权利要求1所述的type-C供电线材，其特征在于，所述type-C母座的电源引脚还通过第三开关连接至所述type-C公头的电源引脚；所述控制芯片还与所述第三开关连接；
    当所述type-C母座有电源适配器插入时，所述控制芯片还用于控制所述主机设备停止为从设备供电，并接通所述第三开关，使所述电源适配器同时为所述主机设备供电。
  3. 根据权利要求2所述的type-C供电线材，其特征在于，所述type-C母座的周围设置有距离感应装置，所述控制芯片与所述距离感应装置连接；所述距离感应装置侦测到物体接近时，所述控制芯片接通所述第一开关，通知所述主机设备为从设备供电，并断开所述第二开关和第三开关。
  4. 根据权利要求3所述的type-C供电线材，其特征在于，所述距离感应装置围绕所述type-C母座设置有一圈，通过中断信号告知所述控制芯片有物体接近。
  5. 根据权利要求2或3所述的type-C供电线材，其特征在于，所述第一至第三开关为MOS管或三极管。
  6. 根据权利要求1所述的type-C供电线材，其特征在于，所述type-C母座 支持CC供电协议和BC1.2协议，所述控制芯片通过所述type-C母座的D+、D-引脚检测是否有电源适配器插入。
  7. 根据权利要求1所述的type-C供电线材，其特征在于，所述type-C公头的SUB1、SUB2、D+、D-、SSTX+、SSTX-、SSRX+和SSRX-引脚不经所述控制芯片，直接与所述传输线连接。
  8. 根据权利要求1所述的type-C供电线材，其特征在于，所述供电线材还包括标准type-C接口，所述标准type-C接口连接在所述传输线的末端。
  9. 一种头戴显示设备，其特征在于，所述头戴显示设备连接有如权利要求1-8任一项所述的type-C供电线材。
  10. 一种虚拟现实系统，其特征在于，所述虚拟现实系统包括头戴显示设备、主机设备和如权利要求1-8任一项所述的type-C供电线材，所述头戴显示设备和所述主机设备通过所述type-C供电线材连接。
PCT/CN2020/109797 2019-08-20 2020-08-18 type-C供电线材、头戴显示设备和虚拟现实系统 WO2021032084A1 (zh)

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