Wireless power supply device

Abstract

The invention discloses a wireless power supply device which comprises a power supply connecting unit for connecting a fixed power supply, a shunt unit connected with the power supply connecting unit, a frequency regulating unit, a main coil unit, an electric appliance transformation unit and a charging interface, wherein the shunt unit divides the current of the power supply into multiple branches connected in parallel; the frequency regulating unit and the main coil unit which are mutually connected are arranged on at least one branch connected in parallel; the electric appliance transformation unit and the charging interface mutually connected are arranged on at least one branch connected in parallel; the frequency regulating unit converts the received current into the alternating current with specific frequency and transmits the alternating current to an induction coil unit; the alternating current with the specific frequency in the induction coil unit generates a magnetic field which changes with the specific frequency; and the electric appliance transformation unit converts the received current into the direct current required by an electric appliance and transmits the converted direct current to the electric appliance through the charging interface. The wireless power supply device has the advantages that the charging efficiency of the electric appliance can be enhanced; multiple electric appliances are simultaneously charged by utilizing a fixed power supply socket; the use efficiency of the socket is enhanced; and the wireless power supply device can be used by users conveniently.

Description

technical field [0001] The invention relates to a power supply device, in particular to a wireless power supply device. Background technique [0002] In modern life, there are more and more types of electronic devices, and the charging interfaces of the electronic devices are different. Therefore, different chargers need to be equipped for various electronic devices. In this way, when the user needs to charge, he needs to select a suitable charger for different brands and models of electronic devices. Once a charger with a suitable interface is not found, the electronic device cannot be charged. At the same time, users need to buy chargers with multiple types of interfaces, which will cost a lot of money. They also need to be re-matched and selected from many chargers when using them, and the charging process of chargers and electronic devices needs to be plugged and unplugged many times. Cause damage to the interface of the electronic device, and further cause scrapping of...

AI Technical Summary

Problems solved by technology

In this way, when users need to charge, they need to choose suitable chargers for different brands and models of electronic devices. Once a charger with a suitable interface is not found, the electronic device will not be able to charge. It will be very troublesome for the user to use the electronic device urgently.

At the same time, users need to buy chargers with multiple types of interfaces, which will cost a lot of money. They also nee

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