Automatic power-off type USB charging connecting wire and application thereof

Abstract

The invention relates to an automatic power-off type USB charging connecting wire and the application thereof. The connecting wire comprises a USB plug end, a charging end, a connecting wire body and an automatic power-off module, wherein the connecting wire body comprises a charging wire body and a data line, the two ends of the charging wire body are connected with the USB plug end and the charging end respectively, the two ends of the data line are also connected with the USB plug end and the charging end respectively, and the automatic power-off module is connected to the charging wire body and comprises a red indicator light, a green indicator light, a manual connecting button, a current transformer, a rectifying unit, a digital signal generator, a signal indicator light executing unit, a circuit switch executing unit and a circuit switch; charging is conducted by connecting the USB plug end to a power supply and connecting the charging end to a device to be charged, the automatic power-off module controls the connection and disconnection of the charging wire body for power transmission, and then the automatic power-off function is realized. Compared with the prior art, the automatic power-off type USB charging connecting wire has the advantages that the device is charged safely and the connecting wire is convenient to carry.

Description

technical field [0001] The invention relates to a USB charging connection line, in particular to an automatic power-off USB charging connection line and an application thereof. Background technique [0002] Nowadays, electronic products such as MP3, MP4, mobile phone, digital camera and tablet computer are very common in people's life. These electronic devices all have batteries. When the power in the batteries is sufficient, the devices can be used normally. When the power of the batteries is exhausted, the batteries of these devices need to be charged. At this time, relevant chargers will be used. Taking mobile phone chargers as an example, in addition to travel chargers and seat chargers, there is also a more convenient charger, that is, a USB mobile phone charger. [0003] Many MP3 players, mobile phones, etc. are equipped with USB chargers now, and the USB data cable is used as the power supply line, and the charging device is connected to the USB power supply for char...

AI Technical Summary

Problems solved by technology

[0004] However, in daily life, many people do other things by themselves when using the USB power supply to charge related devices through the USB data cable, and fail to observe whether these devices are fully charged; some people sleep directly at night. At this time, let these devices have been charging until the next day, which can easily cause the batteries of these devices to be overcharged

The battery of these devices has been overcharged for a long time, and the battery with good quality has a short life at most. The battery with poor quality may generate a large amount of current instantaneously under certain temperature and poor contact conditions, causing spontaneous combustion or explosion.

Up to now, there have been many accidents at home and abroad that use USB data cables to charge equipment during charging, which has caused damage to the property of the parties and threatened their lives.

The existing USB charging cable cannot meet the requirements of automatic power off after the device is fully charged

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