A mobile phone wireless charger with an overcharge protection device

Abstract

The invention discloses a mobile phone wireless charger with an overcharge protection device, which belongs to the field of mobile phone chargers. A mobile phone wireless charger with an overcharge protection device includes a wireless charger body, and a wireless charger body is installed on the bottom of the wireless charger body. Coil, the inner wall of the wireless charger body is fixedly connected with a support plate, and the coil is located inside the support plate, and the inner wall of the support plate above the coil is fixedly connected with a mounting plate, which sends signals to the wireless charger through the mobile phone battery overcharge protection board , so that the gear rotates 90°, and then the through hole rotates to block the magnetic induction line, so that the mobile phone will not generate current, thereby protecting the battery of the mobile phone. At the same time, if the mobile phone is seriously heated during charging, the heat will make the memory metal The sheet changes from a curved phase state to a vertical phase state, so that the control board is pushed into the through hole to reduce the magnetic flux, which can reduce the current in the mobile phone, slow down the charging speed, and protect the overcharge at the same time. Realized overheating protection.

Description

technical field [0001] The invention relates to the field of mobile phone chargers, and more specifically relates to a mobile phone wireless charger with an overcharge protection device. Background technique [0002] The wireless charger is a device that uses the principle of electromagnetic induction for charging. Its principle is similar to that of a transformer. By placing a coil at the sending and receiving ends, the coil at the sending end sends an electromagnetic signal to the outside under the action of electricity, and the coil at the receiving end receives the electromagnetic signal. Signal and convert the electromagnetic signal into electric current, so as to achieve the purpose of wireless charging. Wireless charging technology is a special power supply method, which does not require power lines, relies on electromagnetic wave propagation, and then converts electromagnetic wave energy into electrical energy, and finally realizes wireless charging. [0003] Wirele...

AI Technical Summary

Problems solved by technology

In the process of charging the mobile phone, we often forget to take it off after the battery is fully charged, especially when we are resting at night. The battery will cause damage, and the current will increase at night, which will greatly reduce the life of the battery

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