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1. (WO2018036165) BATTERY PACK ENERGY BALANCING DEVICE AND SYSTEM

Pub. No.:    WO/2018/036165    International Application No.:    PCT/CN2017/079601
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Fri Apr 07 01:59:59 CEST 2017
IPC: H02J 7/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: YANG, Rui
杨瑞
LIU, Ming
刘明
LIU, Xiaokang
刘晓康
Title: BATTERY PACK ENERGY BALANCING DEVICE AND SYSTEM
Abstract:
A battery pack energy balancing device (100) and system (500) for implementing energy balanced distribution between various battery monomers in a battery pack and avoiding the problems of complex control structure and high resource consumption in the existing technical solution for implementing energy balanced distribution between various battery monomers in a battery pack. The battery pack energy balancing device comprises: a transmitting coil (101), used for transmitting electromagnetic waves generated by an inputted first alternating current to a plurality of receiving coils (102); the plurality of receiving coils, each of the plurality of receiving coils having a same parameter value, being coupled to the transmitting coil by using the same coupling strength, and being used for receiving the electromagnetic waves transmitted by the transmitting coil and generating and outputting a second alternating current according to the electromagnetic waves; and a plurality of rectifiers (103) correspondingly connected to the plurality of receiving coils one by one, each of the plurality of rectifiers being used for converting the inputted second alternating current into a direct current to be outputted to a battery monomer in the battery pack, and the plurality of rectifiers being correspondingly connected to a plurality of battery monomers in the battery pack one by one.