External USB output circuit of detachable battery pack

Abstract

The invention discloses an external USB output circuit of a detachable battery pack. The circuit comprises an adapter, a charging module, a Li battery pack, an MCU chip, a single battery pack detection protection module, an auxiliary power supply, a wireless communication module, a motor driving module, an electric quantity display module and a DC-DC step-down module. The circuit can provide a stable voltage source to the outside, can meet use requirements of electric appliances purchased by users, also can provide electric quantity supplement and power supply for products such as digital products, office supplies and daily necessities which are used in daily life and obtain electric energy through USB data lines; besides, the wireless communication module is additionally arranged, so thata user can monitor the charging and discharging states of the battery pack in real time through a corresponding APP, and the operations of charging, power-off, charging reservation and other functions of the USB terminal can be realized through the APP terminal.

Description

technical field [0001] The invention belongs to the technical field of household appliances and electrical equipment, and in particular relates to a detachable battery pack external USB output circuit for household appliances. Background technique [0002] With the continuous development of home appliance technology, traditional wired appliances have gradually developed into wireless charging appliances, and in order to facilitate user operation, use, and storage, most household appliances are equipped with detachable battery packs to prevent electrical battery packs from running out Finally, it is inconvenient to move the entire electrical appliance to charge and take up space. [0003] At present, the detachable battery packs equipped with household appliances in the domestic and foreign markets are only for use by the corresponding electrical appliances, and have a single purpose and there is a phenomenon of waste of electric energy. For the rest, the user may not contin...

AI Technical Summary

Problems solved by technology

[0003] At present, the detachable battery packs equipped with household appliances in the domestic and foreign markets are only used by the corresponding electrical appliances, and the purpose is single and there is a waste of electric energy. The rest, the user may continue to use it until the next cleaning, because the user has improper storage of electrical appliances and self-consumption of electrical appliances, and the next time they use it, they find that the battery pack has run out of power after a period of use

[0004] With the popularization of digital products such as mobile phones and tablet computers, as well as the increasing electricalization of office supplies and daily necessities such as: electric pencil sharpener, electric toothbrush, razor, electric screwdriver, etc.; The increase of mobile charging equipment leads to an increase in user consumption and inconvenient daily organization and storage

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