DC Charger Power and Channel Expansion Module, Charging Control System and Method

Abstract

The invention discloses a DC charger power and channel expansion module, charging control system and method. The expansion module includes 2n input connectors and n output connectors, and the positive poles of the input connectors and the positive poles of the output connectors are electrically connected and connected with DC contacts. The negative pole of the input connector and the negative pole of the output connector are electrically connected and connected with a DC contactor. Charging control system, including charging main control, at least one charging mechanism and at least one expansion module, one charging mechanism is electrically connected to one or two expansion modules, and all expansion modules are connected in tree topology, one of the expansion modules is connected to the charging Master communication connection. Adding expansion modules in the charging control system according to the method can effectively solve the problem of DC charger power expansion and channel expansion, and the design principle of the expansion module is simple, and the system assembly is not difficult. The expansion module is equipped with an electrical interlock circuit. The safety factor makes the power distribution more intelligent and reliable.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a DC charger power and channel expansion module, a charging control system and a method. Background technique [0002] With the rapid development of the electric vehicle industry, the development of chargers for charging electric vehicles is an inevitable trend. The charger has undergone a series of developments such as single gun, double gun wheel charging, and double gun power distribution models. Electric vehicles are fully charged The required power is large, especially the instantaneous power required during fast charging, so there is an increasing demand for high-power, multi-channel charging chargers. In the prior art, the method of increasing the power of the charger is mostly to simply increase the charging module. While adding the charging module and lines, it is also necessary to separately increase the module control distribution unit, resulting in messy internal lay...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides a DC charger power and channel expansion module, charging control system and method, which can solve the problems of power expansion and channel expansion at the same time, and do not need to add additional control separately during the expansion circuit, and the system is equipped with an electrical interlock circuit, which avoids the dangerous situation that a single charging module supplies power to multiple output channels at the same time due to program problems, and plays a double protective role

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