Electric vehicle charging system capable of generating electricity by solar energy

An electric vehicle charging system capable of generating electricity by solar energy, comprising a fixed solar panel, a movable solar panel, a solar panel state control device, and an intelligent voltage conversion and control module, wherein the fixed solar panel is fixedly mounted on a roof, the movable solar panel is mounted on two sides of the fixed solar panel, and the solar panel state control device is connected to the intelligent voltage conversion and control module, is used for receiving a vehicle-mounted signal and a signal of the intelligent voltage conversion and control module, and controls a stretched or contracted state of the movable solar panel, output voltages of the fixed solar panel and the movable solar panel are connected in parallel, and the output voltage obtained by the parallel connection is connected to the intelligent voltage conversion and control module, a voltage output terminal of the intelligent voltage conversion and control module is connected to a charging port of the electric vehicle or a power battery of the electric vehicle;

• wherein the intelligent voltage conversion and control module is configured for controlling the solar panel to generate a maximum conversion rate and a maximum charging power under different light intensities in different time periods, wherein the intelligent voltage conversion and control module is docked with the electric vehicle and is configured to control charging and monitor a charging process of the electric vehicle;
• wherein, the intelligent voltage conversion and control module comprises a MCU intelligent computing controller, a current inductor, a voltage value detection circuit, a voltage converter and a charging controller, the current inductor and the voltage value detection circuit respectively detect a charging current and a charging voltage, and are connected to the MCU intelligent computing controller, the MCU intelligent computing controller is connected to the voltage converter, an output of the voltage converter is linked with the charging controller, and the MCU intelligent computing controller controls the voltage converter to convert and generate different voltages under the same light intensity in the same time period, calculates and memorizes different charging powers and parameters according to a returned voltage and a returned current, selects a parameter corresponding to the maximum power to control an output voltage of the voltage converter, and charges the electric vehicle through the charging controller;
• the charging controller is a charging controller having handshake communication and control functions according to an interface standard of an original vehicle charging socket, an input terminal of the charging controller is connected to an output terminal of the voltage converter, and an output terminal of the charging controller is connected to an original DC charging port of the electric vehicle, or is connected to a cathode or an anode of a power battery, or is connected to an alternating current charging port of the electric vehicle to charge the electric vehicle;
• and the charging controller is also connected to the MCU intelligent computing controller, and the MCU intelligent computing controller controls the charging controller to start or stop charging;
• wherein the solar panel state control device further comprises three telescopic supporting rods, wherein one end of each telescopic supporting rod is fixed to the roof, another end of the telescopic supporting rod is hinged with a bottom portion of the fixed solar panel, wherein the three telescopic supporting rods each connected to the motor controller, the motor controller is configured to change a height of a supporting point of the solar panel thus adjusting a planar angle of the solar panel by controlling the supporting rods to stretch and contract, so that the solar panel is nearly perpendicular to a solar ray.