Series battery equalizing equipment
A technology of series-connected battery packs and balancing equipment, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as low balancing efficiency, difficulty in practical promotion of balancing devices, and large changes in working conditions.
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[0022] figure 1 It is a cascading diagram of equalization modules of the device of the present invention. The balancing device of the present invention adopts a modular structure, and the entire battery pack CELL 1 、CELL 2 ......CELL n Divided into multiple battery packs, each battery pack is connected to a balancing module, such as balancing modules 1, 2...m, where m is an integer greater than 0. Such as figure 1 As shown, in the m groups of batteries connected in series, every 3 single cells form a group, and each battery group is connected to a balancing module, and the method of stacking and grouping is adopted, that is, CELL1, CELL2, and CELL3 are battery group 1, and they are connected to balancing module 1. CELL3, CELL4, and CELL5 are the battery pack 2, which are connected to the equalization module 2, and so on. In this way, both balance module 1 and balance module 2 can balance CELL3, balance module 1 can distribute the energy of CELL3 to CELL1, CELL2, and CELL3...
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