Charging station

Abstract

The invention discloses a charging station with the advantages of low cost, high reliability and high charging efficiency. The charging station comprises a power transformer and a charging machine room, wherein a cluster electric cabinet is arranged inside the charging machine room and consists of a master control switch cabinet and a plurality of standard charging cabinets; at least one group of charging modules are arranged in each standard charging cabinet; each charging module comprises a current-limiting module (221), a rectifier bridge (222) and a charging socket (223); the current-limiting module (221) consists of a plurality of capacitors (C) and controls an output state of each capacitor (C) through a contactor; and alternating current entering through an input end of the charging module passes through the current-limiting module (221) and the rectifier bridge (222) and is changed into direct current and is output through the charging socket (223). The charging station is used for charging a power storage battery on an electric automobile.

Description

technical field [0001] The invention relates to a charging station for charging a power storage battery on an electric vehicle. Background technique [0002] At present, people's awareness of environmental protection is increasing, and they pay more and more attention to the protection of the environment and the effective and rational use of energy. The fuel consumption and exhaust emissions of traditional vehicles far exceed people's expected values. Therefore, electric vehicles, which are clean energy sources, will emerge at the right time, and will quickly replace and replace fuel vehicles with their advantages in energy saving and environmental protection. [0003] The power source of electric vehicles is the vehicle-mounted traction battery. Timely and fast replenishment of power to the traction battery is an urgent problem to be solved in the process of promoting the promotion and mass production of electric vehicles at this stage. To supplement electric energy for th...

AI Technical Summary

Problems solved by technology

For chargers equipped with power frequency transformers, they are bulky, bulky, use a large amount of copper, have high cost and low charging efficiency; and for chargers equipped with high frequency transformers, because of the small size of the high frequency inverter, The light-weight high-frequency magnetic core material greatly improves the power density of the circuit, making the no-load loss of the inverter power supply very small, and the inverter efficiency is improved. Usually, the peak conversion efficiency of high-frequency inverters reaches more than 90%, but It also has significant disadvantages: the high-frequency inverter cannot be connected to a full-load inductive load, and its overload capacity is poor. With the current technology, it is impossible to make a single power very large. To make a high-power charger, multiple sets must be connected in parallel. The use increases the complexity and cost of the equipment, the average failure rate of the equipment is high, and the reliability is poor

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