The invention belongs to the field of battery pack power supply, and particularly discloses a series battery pack switching circuit, a power battery pack and an electric locomotive. The series battery pack switching circuit comprises a series battery pack, the series battery pack comprises a plurality of battery packs which are sequentially connected in series end to end, the anode end of each battery pack in the plurality of battery packs and the cathode end of the last battery pack are connected with branches with switches, and the branches with the switches are sequentially numbered; the positive electrode end of the first power supply output end is connected with the positive electrode end of the first battery pack in the plurality of battery packs, and the negative electrode end of the first power supply output end is connected with the negative electrode end of the last battery pack in the plurality of battery packs; the first electrode end of the second power supply output end is connected with the branch circuit with the odd number, and the second electrode end of the second power supply output end is connected with the branch circuit with the even number. The series battery pack switching circuit can provide two different output voltages for one series battery pack at the same time.
本发明属于电池组供电领域,具体公开了一种串联电池组切换电路、动力电池组以及电力机车。串联电池组切换电路包括:串联电池组,串联电池组包括依次首尾串联连接的多个电池组,多个电池组中每个电池组的正极端以及最后一个电池组的负极端均连接有带开关的支路,带开关的支路依次进行编号;第一电源输出端,第一电源输出端的正极端与多个电池组中第一个电池组的正极端相连,第一电源输出端的负极端与多个电池组中最后一个电池组的负极端相连;第二电源输出端,第二电源输出端的第一电极端与编号为奇数的支路相连,第二电源输出端的第二电极端与编号为偶数的支路相连。该串联电池组切换电路能够为一个串联电池组同时提供两种不同的输出电压。
Series battery pack switching circuit, power battery pack comprising same and electric locomotive
串联电池组切换电路、包含其的动力电池组以及电力机车
2024-07-19
Patent
Electronic Resource
Chinese
BATTERY PACK COMPRISING BATTERY ASSEMBLY, AND ELECTRIC VEHICLE COMPRISING BATTERY PACK
European Patent Office | 2025
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