Earphone charging data line with switching function
A technology for switching functions and data lines, which is applied in the direction of circuits, electrical components, parts of connecting devices, etc., and can solve problems such as use, inability to transmit data, and inconvenient use
Pending Publication Date: 2021-05-28
上海毅信贸易有限公司
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In this kind of multi-function adapter cable, the charging interface usually only has the charging function and cannot be used as a data transmission
When users need to transfer data, they also need to find another USB data cable to connect to the computer, which brings inconvenience to use
Method used
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Embodiment Construction
[0018] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings and examples.
[0019]
[0020] figure 1 It is a structural diagram of an earphone charging data line with switching function according to an embodiment of the present invention.
[0021] Such as figure 1 As shown, the earphone charging data cable 100 with switching function of the embodiment of the present invention is suitable for Type C interface mobile phones, including the first joint 10, the second joint 20, the conversion chip 30, the sound unit 40, the switching circuit 50 and the power supply circuit 60.
[0022] figure 2 is a structural diagram of the first joint of the embodiment of the present invention.
[0023] Such as figure 1 and figure 2 As shown, the first connector 10 is a Type C connector for connecting with a Type C interface of a mobile phone. The Type C mobile phone interface is usually provided with a data terminal on t...
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The invention aims to provide an earphone charging data line with a switching function, which not only can transmit data, but also can transmit a sound source signal, and can also perform charging. The earphone charging data line comprises a first connector which is provided with a first connector side data terminal corresponding to a mobile phone side data terminal in a mobile phone interface; a second connector which is provided with a second connector side data terminal corresponding to the interface side data terminal in a data interface; a conversion chip which is used for converting a sound source signal of a mobile phone into a driving signal for driving a sound production unit, and is provided with a sound source signal input terminal and a driving signal output terminal; a switching circuit which is provided with a change-over switch, wherein the change-over switch is connected with the sound source signal input terminal, the first connector side data terminal and the second connector side data terminal and used for enabling a user to switch a change-over switch so that the first connector side data terminal can be connected with the second connector side data terminal, or the first connector side data terminal is connected with the sound source signal input terminal.
Description
technical field [0001] The invention relates to an earphone charging data line with switching function. Background technique [0002] With the development of lightweight and thin mobile devices such as mobile phones, the current mobile phones on the market gradually cancel the 3.5mm headphone jack, and at the same time introduce the audio signal output function into the mobile phone interface. Three functions of output, data transmission and charging. In order to apply the earphones to this type of mobile phone, some existing earphones have connectors designed to be adapted to the interface of the mobile phone, and some circuits related to the audio signal are added in it. With cooperation, the mobile phone recognizes the earphone and automatically switches to the audio source signal output mode; when the mobile phone interface is connected to the computer through a data cable, it automatically switches to the data transmission mode. [0003] Because different functions sh...
Claims
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IPC IPC(8): H01R13/66H01R13/71H01R31/06
CPCH01R31/06H01R13/66H01R13/71
Inventor 张程皓
Owner 上海毅信贸易有限公司