Charging and discharging system through parallel connection of multiple groups of charging and discharging modules, and management method for charging and discharging system
A charging and discharging module and charging system technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of small capacity failure, shortened battery life, slow capacity decay, etc.
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specific Embodiment 1
[0045] Such as figure 1 The multiple groups of charging and discharging modules parallel charging system shown includes at least two groups of parallel charging and discharging modules 1 capable of storing electricity and discharging externally, and also includes a charging control circuit 2 connected in series with the charging circuit; the charging control circuit 2 includes The charging and discharging module has a unidirectional conduction circuit 21 and a charging switch circuit 22 for unidirectional conduction in the charging direction; it also includes a voltage monitoring module 3 for monitoring the voltage of the charging and discharging module.
[0046] The management method is: before the charging process, all the charging switch circuits are in the conducting state, and all the charging and discharging modules are connected in parallel through the components of the charging direction allowed in the charging control circuit;
[0047] Monitor the voltage of all charg...
specific Embodiment 2
[0048] On the basis of the first embodiment, a main control module 4 is also included, which is respectively connected with the voltage monitoring module and the charging switch circuit. The main control module receives the detection voltage of the voltage detection module, and controls the conduction and blocking of the charging switch circuit. The main control module can be a general main control module, which receives the detected voltages of each voltage detection module, and controls the conduction and blocking of each charging switch circuit. There may also be multiple main control modules, and the circuit where each charging and discharging module is located corresponds to one main control module.
[0049] Such as figure 1 As shown, in this specific embodiment, there are two groups of charging and discharging modules connected in parallel and their respective corresponding charging control circuits, voltage monitoring modules and main control modules. In practical app...
specific Embodiment 3
[0050] On the basis of the specific embodiment one or two, the one-way conduction circuit is a diode (such as figure 1 shown), can also be a parallel circuit composed of a diode and a switch in parallel (such as Figure 4 shown), can also be a MOS tube (such as Figure 4 shown as its equivalent circuit); the charging switch circuit is a relay switch circuit or a triode switch circuit; in this specific embodiment, the charging switch circuit is a single control switch circuit (such as figure 1 As shown), it can also be at least one of the two options of a multi-choice switch switch circuit. In this specific embodiment, when it is a multi-choice switch circuit, it can be selected between the charging control circuit path and the empty circuit. When When the circuit is empty, the charging control circuit is in a blocking state.
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