US 12,394,832 B2
Thermal management method and thermal management system
Yuanmiao Zhao, Ningde (CN); Xiaojian Huang, Ningde (CN); Zhanliang Li, Ningde (CN); and Zhimin Dan, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Aug. 9, 2023, as Appl. No. 18/446,550.
Application 18/446,550 is a continuation of application No. PCT/CN2021/126254, filed on Oct. 26, 2021.
Prior Publication US 2023/0387494 A1, Nov. 30, 2023
Int. Cl. H01M 10/633 (2014.01); H01M 10/613 (2014.01); H01M 10/615 (2014.01); H01M 10/6552 (2014.01); H01M 10/6568 (2014.01); H01M 10/657 (2014.01)
CPC H01M 10/633 (2015.04) [H01M 10/613 (2015.04); H01M 10/615 (2015.04); H01M 10/6552 (2015.04); H01M 10/6568 (2015.04); H01M 10/657 (2015.04)] 17 Claims
 
1. A thermal management method, applied to a thermal management system which comprises a heating apparatus, a battery pack, a cooling module and a pipeline subsystem, the pipeline subsystem being in thermal contact with the heating apparatus, the battery pack and the cooling module; wherein the heating apparatus comprises a switch module, an energy storage unit, and a cooling unit, the switch module and the energy storage unit are electrically connected to each other, both the switch module and the energy storage unit are in thermal contact with the cooling unit, and both the switch module and the energy storage unit are capable of transferring heat to the cooling unit; wherein the thermal management method comprises measuring a temperature of the battery pack and a temperature of a heat exchange medium of the pipeline subsystem; and
under the condition that the temperature of the battery pack and the temperature of the heat exchange medium are under a low temperature threshold, operating the pipeline subsystem such that the heat exchange medium is circulated in the pipeline subsystem to exchange heat with the heating apparatus but not with the cooling module or the battery pack, until the temperature of the heat exchange medium reaches a predetermined threshold and the pipeline subsystem is operated such that the heat exchange medium is circulated in the pipeline subsystem to exchange heat with the battery pack and the heating apparatus; and
under the condition that the temperature of the battery pack is higher than a high temperature threshold, operating the pipeline subsystem such that the heat exchange medium is circulated in the pipeline subsystem to exchange heat with the cooling module and the battery pack but not with the heating apparatus.