公开(公告)号：US11021064B2

公开(公告)日：2021-06-01

申请号：US16289436

申请日：2019-02-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin Dan ,  Xiyang Zuo ,  Wei Zhang ,  Yizhen Hou ,  Wenbin Lu ,  Xingyuan Wu ,  Taosheng Zhu

IPC: H02J7/00 ,  B60L3/00 ,  H01M10/615 ,  H01M10/625 ,  H01M10/657 ,  B60L58/27

Abstract: The present disclosure provides a battery pack heating apparatus. The battery pack heating apparatus is applicable portably and externally to a vehicle and includes: an electrical energy conversion component, including an energy storage device, a first set of switches and a second set of switches; a heating interface component including a plurality of heating interfaces connected to the energy storage device via the first set of switches to form a first heating loop and connected to the energy storage device via the second set of switches to form a second heating loop, each of the plurality of heating interfaces being configured to be connected to a battery pack of one vehicle; and a heating control module configured to control a direction of electrical energy transfer between the electrical energy conversion component and the battery pack.

公开(公告)号：US10886757B2

公开(公告)日：2021-01-05

申请号：US16243373

申请日：2019-01-09

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang Zuo ,  Zhimin Dan ,  Wei Zhang ,  Yizhen Hou ,  Teng Yu ,  Wenbin Lu ,  Xingyuan Wu ,  Taosheng Zhu

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

Abstract: A battery pack system, a control method thereof and a management device are provided. A battery pack is connected in series with a discharge circuit unit and a charge circuit unit; a battery management unit is to monitor a temperature of the battery pack, to periodically send, when the temperature of the battery pack is lower than a threshold, a turn-on-instruction to the discharge circuit unit and the charge circuit unit alternately to control the discharge circuit unit and the charge circuit unit to be alternately turned on in heating cycles; the discharge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the battery pack to flow into the energy storage unit in discharging-phase; and the charge circuit unit is to be turned on according to the turn-on-instruction to enable electricity of the energy storage unit to flow into the battery pack in charging-phase.