Electric motor car charging system with standby switching and charging method
A charging system and electric vehicle technology, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problems of large investment in the charging system, inability to charge multiple modules, low module utilization, etc., to improve charging efficiency and reliability. The effect of improving the performance, cycle life and utilization rate of
Inactive Publication Date: 2015-07-01
哈尔滨冠拓电源设备有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problems of the existing charging system, such as large investment, large footprint, low module utilization rate, inability to charge multiple modules at the same time, limited charging power, etc., and propose an electric vehicle charging system with backup switching and charging method
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[0015] Such as image 3 As shown, the system of the present invention has N rectifying modules and M output charging ports, and both N and M are 2 or more. The rectifier modules are divided into two categories, called fixed groups and switching groups. The modules in each group do not have to be placed together, and can be flexibly placed according to system requirements. The output charging port is divided into a common group and a spare group. The output of the fixed group module is connected to each output charging port of the common group, without a switch in the middle. The number of modules connected to each output charging port of the common group is not necessarily the same. The charging port with higher frequency of use can be fixedly connected with more modules. Fixed group modules are not connected to the standby group. The output positive and negative poles of each module of the switching group (several modules can also be connected in parallel as one module) are...
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The invention discloses an electric motor car charging system with standby switching and a charging method. A rectification module consists of a fixing group and a switching group, wherein an output charging port consists of a common group and a standby group, a fixing group module output is connected to every output charging ports of the common group, output anodes and output cathodes of every modules of the switching group are connected to every output charging ports of the standby group, a group of two-way controllable electronic switches are connected in output charging ports of the standby group, a main control unit is used for controlling the number of started switching group modules at the same time, and started module output current can meet charging requirements of the electric motor car. When the output voltage of a starting module rises approximate to the cell voltage of the electric motor car, the switching group module starts the output controllable electronic switches of the module, modules of the fixing group and the switching group are connected to cells and are charged, the utilization efficiency of modules is improved greatly, the quick charging is achieved, charging time requirements for clients can be met and the service life of cells is improved.
Description
technical field [0001] The invention relates to a charging system for charging electric vehicles. Background technique [0002] At present, the electric vehicle industry is on the rise, and the electric vehicle chargers equipped with it are also developed. However, due to the impact of high price, low battery reliability, and long charging time, it can only be used in a small area. The charging facilities for electric vehicles It is also impossible to carry out large-scale layout, so the range of activities of electric vehicles is greatly limited. It is necessary to increase the large-scale layout of charging facilities in order to promote the large-scale development of electric vehicles. The large-scale layout of charging facilities is also affected by the high investment in charging facilities, the scarcity and high cost of land in urban centers, the lack of large-scale construction of charging stations, the lack of electric vehicles, and the long charging time that affe...
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IPC IPC(8): H02J7/00H02J7/04
Inventor 吴连日
Owner 哈尔滨冠拓电源设备有限公司