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A leakage protection device, a power adapter and a leakage protection method

A power adapter and leakage protection technology, which is applied in the electronic field, can solve the problems of power supply electric shock casualties, power adapter safety needs to be further improved, electric shock casualties, etc., and achieve the effect of improving safety

Inactive Publication Date: 2018-10-26
DONGGUAN COOLPAD SOFTWARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the leakage of the ground wire of the power adapter is not necessarily caused by a short circuit with the positive wire. Generally, a voltage of 36V can cause electric shock casualties. When the ambient humidity is high, even 24V and 12V power supplies can cause electric shock casualties.
It can be seen that the safety of the power adapter needs to be further improved

Method used

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  • A leakage protection device, a power adapter and a leakage protection method
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  • A leakage protection device, a power adapter and a leakage protection method

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] The power adapter provided by the embodiment of the present invention is used to convert high-voltage AC power into low-voltage DC power to supply power to the terminal, for example, convert 220V AC power from the mains to 5V DC power acceptable to the terminal. Wherein, the terminal includes electronic devices such as smart phones, tablet computers, notebook computers, desktop computers, digital audio and video players, e-readers, handheld game consoles, and...

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Abstract

The embodiment of the invention discloses an electric leakage protection device. The device comprises a voltage acquisition module, a processing module and a switch module. The voltage acquisition module is connected with the ground wire of a power adapter. The processing module is connected with the voltage acquisition module. The switch module is connected with the processing module. The voltage acquisition module is used for acquiring the voltage values of the ground wire of the power adapter and transmitting the voltage values to the processing module. The processing module is used for transmitting control signals to the switch module when the voltage values of the ground wire are greater than a preset voltage value through judgment. The switch module is used for disconnecting the ground wire of the power adapter according to the control signals. Correspondingly, the embodiment of the invention also discloses the power adapter and an electric leakage protection method. With application of the electric leakage protection device, the power adapter and the electric leakage protection method, electric leakage protection of the ground wire of the power adapter can be realized so that safety can be enhanced.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a leakage protection device, a power adapter and a leakage protection method. Background technique [0002] With the continuous development of electronic technology, terminals such as smart phones and tablet computers are becoming more and more popular. The power adapter is an essential power supply device for the terminal, which is used to convert high-voltage alternating current into low-voltage direct current for power supply, for example, transforming 220V mains alternating current into 5V direct current acceptable to the terminal. It should be pointed out that for the purpose of improving the quality of the antenna signal and reducing the static electricity of the shell, the ground wire (GND) of the main board of the terminal will be connected to the shell of the terminal, then when the terminal is connected to the power adapter, the ground wire of the power adapter Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/32
Inventor 杨涛
Owner DONGGUAN COOLPAD SOFTWARE TECH
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