Wireless charging device for charging wireless wearable device through NFC antenna

Abstract

The invention discloses a wireless charging device for charging wireless wearable device through an NFC antenna. The wireless charging device comprises an antenna matching module, a wireless charging management module and a filtering module, the NFC antenna, the antenna matching module, the wireless charging management module, the filtering module and an a battery are sequentially connected. According to the wireless charging device, the NFC antenna is used for receiving energy signals, the energy signals received by the NFC antenna are maximized through the antenna matching module, then the wireless charging management module is in communication with a wireless charging transmitting end, conducts commutating and voltage stabilizing on the received wireless electric signals and outputs charging voltage signals, and the filtering module is used for filtering the charging voltage signals output by the wireless charging management module and outputs proper charging voltage. The existing NFC antenna of the wireless wearable device is used for charging, a charging interface or a special antenna does not need to be additionally arranged, the waterproof grade is improved, and the limited space of the wireless wearable device is prevented from being occupied.

Description

technical field [0001] The invention relates to the charging technology of electronic products, in particular to a charging device for charging wireless wearable devices by using an NFC antenna. Background technique [0002] Wireless wearable devices, such as smart watches, have a built-in intelligent system in the watch and a smart phone system connected to the network to achieve multi-function. It can synchronize phone calls, text messages, emails, photos, music, etc. in the phone. At present, there are smart watches produced by Apple and Sony on the market, which are extremely coquettish and can be said to be a beneficial supplement to smart phones. [0003] Although smart watches can be carried around and can realize functions such as calls, text messages, and emails anytime and anywhere, which provides convenience to users, and is also characterized by personality and fashion, and is favored by young consumers, but its charging is a problem. [0004] Although the power...

AI Technical Summary

Problems solved by technology

If a charging plug is installed on a fashionable and beautiful smart watch, it will occupy the limited space of the smart watch and affect the overall aesthetic feeling

[0005] In addition, some wireless wearable devices can realize wireless charging, but a dedicated antenna needs to be added to the device, which occupies the limited space of wireless wearable devices

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