US 11,784,362 B2
Power supply system, control method of power supply system and control device of power supply system
Li Niu, Luoyang (CN); Xinjian Li, Changzhou (CN); Qixin Guo, Luoyang (CN); Xuan Zhang, Zhangzhou (CN); Zhouli Li, Luoyang (CN); Guohua Sun, Luoyang (CN); and Yuefeng Li, Luoyang (CN)
Assigned to CALB Co., Ltd., Jiangsu (CN); and CALB Technology Co., Ltd., Jiangsu (CN)
Filed by CALB Co., Ltd., Jiangsu (CN); and CALB Technology Co., Ltd., Jiangsu (CN)
Filed on Jul. 9, 2021, as Appl. No. 17/371,125.
Claims priority of application No. 202110530011.0 (CN), filed on May 14, 2021.
Prior Publication US 2022/0367931 A1, Nov. 17, 2022
Int. Cl. H01M 10/63 (2014.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/6567 (2014.01)
CPC H01M 10/63 (2015.04) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6567 (2015.04); H01M 2220/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A power supply apparatus, comprising:
a first power supply device, comprising one or more battery packs;
a heat-dissipation unit, configured to dissipate heat from the first power supply device;
a second power supply device comprising an on-board low-voltage power supply; and
a control device, configured to confirm whether each battery pack in the first power supply device experiences thermal runaway, and control the first power supply device to supply power to the heat-dissipation unit when no battery pack in the first power supply device experiences thermal runaway, so that the heat-dissipation unit dissipates heat from the first power supply device; and control a battery pack not experiencing thermal runaway in the first power supply device and/or the second power supply device to supply power to the heat-dissipation unit when a battery pack in the first power supply device experiences thermal runaway, so that the heat-dissipation unit dissipates heat from the first power supply device; and wherein the power supply apparatus further comprises a first thermal runaway detection device, wherein the first thermal runaway detection device is configured to detect a plurality of indicators reflecting a degree of thermal runaway of the battery pack, and send numerical values of the indicators reflecting the degree of thermal runaway of the battery pack to the control device; wherein the heat-dissipation unit comprises a first heat-dissipation unit and a second heat-dissipation unit;
the second heat-dissipation unit comprises a first subunit and a second subunit, and a heat dissipation effect of the first subunit is lower than a heat dissipation effect of the second subunit, wherein the control device is configured to control the on-board low-voltage power supply to supply power to the second heat-dissipation unit when a battery pack in the main power supply experiences thermal runaway, so that the second heat-dissipation unit dissipates heat from the main power supply, specifically:
the control device obtains the numerical values of the indicators reflecting the degree of thermal runaway of the battery pack; the control device controls the on-board low-voltage power supply to supply power to the first subunit when the numerical values of the indicators satisfy a preset condition, so that the first subunit dissipates heat from the main power supply; and the control device controls the on-board low-voltage power supply to supply power to the second subunit when the numerical values of the indicators do not satisfy the preset condition, so that the second subunit dissipates heat from the main power supply.