An electric vehicle intelligent charging device

Abstract

The invention relates to the technical field of electric vehicles, in particular to an intelligent charging device for an electric vehicle. According to the technical scheme, the intelligent charging device comprises a single chip microcomputer, wherein the single chip microcomputer is connected with an IC (integrated circuit) card read-write module, a power module, a clock module, a display driving module, a data storage, a multipath control key, a relay driving module and an overcurrent and overload detection module; the relay driving module is connected with a relay, the relay is connected with a potential transformer, the overcurrent and overload detection module is connected with the potential transformer, the potential transformer is further connected with a power supply output socket, the power module comprises an alternating current filter, a power transformer and a rectification and filtration voltage stabilizer which are connected sequentially in series, the alternating current filter is connected with a 220V alternating current power supply in series, the rectification and filtration voltage stabilizer is connected with the single chip microcomputer in series, and the display driving module is connected with a six-in-one LED display screen. Mutual mistaken card swiping can be prevented when IC cards are used, and the charging device has low empty consumption power and has an overloading short-circuit protection function.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an intelligent charging device for electric vehicles. Background technique [0002] The electric vehicle intelligent charging station is a kind of intelligent self-charging equipment suitable for installation and use in the centralized parking area of ​​electric vehicles in the community. At present, most of the charging stations are mainly coin-operated, that is, one coin gives 3-4 hours of charging. Time, output power to a socket, a socket allows only one charger of a user to use, and the user's own charger is plugged into the socket to charge the device. [0003] Some manufacturers reluctantly combine the functions of coin insertion and IC card swiping, and use the IC card to recharge the card for charging, which is convenient for users without looking for coins; but too many charging station manufacturers have little understanding of the encryption algorithm of the ...

AI Technical Summary

Problems solved by technology

[0006] At present, the output terminal of the charging station is equipped with a fuse as an overload short-circuit protection. When the electric vehicle charger is short-circuited or the electric power of multiple electric vehicles sharing a socket is overloaded, the fuse will be blown to stop the power supply. On the one hand, it can protect charging. On the other hand, it protects the interests of charging station operators. However, charging stations are placed in public places and are basically unattended. When a certain output terminal is short-circuited or overloaded, the fuse will burn out and that channel will be unusable. When a user inserts coins, the corresponding output terminal will no longer be able to supply power. This will not only cause maintenance troubles, but the user will not be able to recharge after inserting coins, and there will be economic disputes

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