US 12,362,405 B2
Monitoring and protection system and energy storage device
Fei Lu, Shanghai (CN); Changyong Wang, Shanghai (CN); Wei Guan, Shanghai (CN); and Jian Zhu, Shanghai (CN)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed on Mar. 30, 2022, as Appl. No. 17/657,132.
Claims priority of application No. 202110381796.X (CN), filed on Apr. 9, 2021.
Prior Publication US 2022/0328891 A1, Oct. 13, 2022
Int. Cl. H01M 10/48 (2006.01); G01D 21/02 (2006.01); G01K 11/32 (2021.01); G01L 1/24 (2006.01); H01M 10/42 (2006.01)
CPC H01M 10/486 (2013.01) [G01K 11/32 (2013.01); G01L 1/242 (2013.01); H01M 10/4257 (2013.01); G01D 21/02 (2013.01); G01L 1/246 (2013.01); H01M 2010/4271 (2013.01); H01M 10/48 (2013.01); H01M 2220/10 (2013.01); Y02E 60/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A monitoring and protection system, applied to at least one battery module and comprising:
a temperature monitoring apparatus, comprising a plurality of grating temperature sensors, wherein each grating temperature sensor is arranged on a corresponding battery module, and configured to obtain a temperature of the corresponding battery module;
a deformation monitoring apparatus, configured to obtain a deformation amount of each battery module, and comprising a plurality of grating strain sensors, wherein each grating strain sensor is arranged on a corresponding battery module; and
a control apparatus, coupled to the temperature monitoring apparatus and the deformation monitoring apparatus, and configured to receive the temperature and the deformation amount of each battery module and control a protective unit to perform a corresponding protective action according to the temperature and the deformation amount of each battery module; wherein,
the protective unit is capable of performing three levels of protective actions, wherein a first level of protective action corresponds to heating the battery module, a second level of protective action corresponds to giving an alarm and opening a switch, and a third level of protective action corresponds to activating a fire extinguishing apparatus; and
wherein the control apparatus comprises a parameter processing unit and the protective unit, the parameter processing unit is configured to compare the temperature with a preset temperature to obtain a first comparison result, and compare the deformation amount with a preset deformation amount to obtain a second comparison result, and determine to perform at least one of the three levels of protective actions or not to perform any protective action according to the first comparison result and the second comparison result.