A wireless and wired charging switching device for electric vehicles

Abstract

The invention provides a wireless and wired charging switching device of an electromobile. The switching device comprises a power module and a charging module of the electromobile, wherein the power module and the charging module are connected. The power module comprises a power grid, a first control switch, a second control switch, a high-frequency power source, a battery charger and an energy transmitting coil system, wherein the first control switch and the second control switch are respectively connected with the power grid, the high-frequency power source is connected with the first control switch, the battery charger is connected with the second control switch, and the energy transmitting coil system is connected with the high-frequency power source. The charging module comprises a master control system connected with the second control switch, and an energy receiving system connected with an energy transmitting coil, wherein the energy receiving system is connected with a battery through a rectifying and voltage stabilizing system, and the master control system is connected with the battery through a power detection module; the battery charger is connected with the battery, and the control system sends signals to the first control switch and the second control switch. According to the device, wireless charging is combined with wired charging, a user can select a charging mode at will, and the electromobile can be charged more flexibly, more conveniently and faster. Stability of wired charging is achieved, and the effect for reducing impact on the power grid under the wireless charging condition is also achieved.

Description

technical field [0001] The invention relates to a device in the technical field of electric energy management, in particular to a wireless and wired charging switching device for an electric vehicle. Background technique [0002] In recent years, with the continuous improvement of people's living standards and the gradual deepening of exploration of the material world, people have new requirements for the transmission method and quality of electric energy. Traditional power transmission is mainly carried out by direct contact of wires or conductors. Sparks generated by contact, sliding wear, carbon accumulation and exposed charged conductors have brought a series of problems. Wireless power transmission is a technology that uses radio to transmit electric energy. It was first proposed by Nikola Tesla. Compared with the traditional power transmission method, there is no direct connection between power supply and power consumption in the process of wireless power transmission....

AI Technical Summary

Problems solved by technology

But relatively speaking, the stability of wireless charging is poor, and wired charging puts a lot of pressure on the power grid. It is necessary to provide a switching device for wireless and wired charging of electric vehicles, which can be selected according to different power grid conditions to reduce the pressure on the power grid. Has high stability

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