公开(公告)号：US11904728B2

公开(公告)日：2024-02-20

申请号：US17458640

申请日：2021-08-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yanru Li ,  Xingyuan Wu ,  Guowei Li ,  Wei Zhang ,  Zhimin Dan ,  Xiyang Zuo

IPC: H01M10/6568 ,  B60L58/26 ,  B60H1/00 ,  H01M10/6563

CPC classification number: B60L58/26 ,  B60H1/00392 ,  B60H1/00485 ,  H01M10/6568 ,  H01M10/6563

Abstract: This application discloses a thermal management system for a battery pack and a thermal management system for an electric vehicle. the thermal management system for the battery pack includes: a thermal management device for the battery pack, a processor, and a solenoid valve network connected to the thermal management device for the battery pack. An external port of the solenoid valve network is connected to an external cooling system. The processor is configured to control operating status of a solenoid valve in the solenoid valve network, so that the thermal management device for the battery pack heats the battery pack by using heat generated by the external cooling system.

公开(公告)号：US11351888B2

公开(公告)日：2022-06-07

申请号：US16972574

申请日：2019-01-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang Zuo ,  Zhimin Dan ,  Wei Zhang ,  Yizhen Hou ,  Guowei Li ,  Xingyuan Wu ,  Yanru Li

IPC: B60L58/27 ,  H02P27/08 ,  H01M10/63 ,  H01M10/615 ,  H02J7/00 ,  H01M10/625

Abstract: In a battery heating system an inverter includes a first-phase bridge arm, a second-phase bridge arm and a third-phase bridge arm connected in parallel, each of a upper bridge arm and a lower bridge arm is provided with a switch module, the switch module is connected in parallel with a buffer module; and a motor controller in the inverter is provided for providing driving signals to the switch module of a target upper bridge arm and the switch module of a target lower bridge arm to control the switch module of the upper bridge arm of any bridge arm among the three phases of bridge arms and the switch module of the lower bridge arm of at least one bridge arm among the bridge arms except the bridge arm where the switch module of the target upper bridge arm is located to be periodically turned on and off.

公开(公告)号：US11050287B2

公开(公告)日：2021-06-29

申请号：US16235261

申请日：2018-12-28

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/42 ,  H01M10/44

Abstract: A battery pack system includes a battery pack, a battery management module, a discharge circuit module, a charge circuit module and an energy storage module. The battery pack is connected to the discharge circuit module in series and the battery pack is connected to the charge circuit module in series. The battery management module is configured to monitor a temperature of the battery pack, and if the temperature is lower than a first temperature threshold, send a switch-on instruction to the discharge circuit module and the charge circuit module alternately at a regulation frequency. The discharge circuit module is configured to switch on according to the switch-on instruction to enable electricity of the battery pack to flow into the energy storage module. The charge circuit module is configured to switch on according to the switch-on instruction to enable electricity of the energy storage module to flow into the battery pack.

公开(公告)号：US10957950B1

公开(公告)日：2021-03-23

申请号：US17099956

申请日：2020-11-17

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M10/625 ,  H01M10/615 ,  H01M10/48 ,  H01M10/637 ,  H02J7/00 ,  H02J7/34 ,  H01M10/657

Abstract: The present application discloses a heating module, a heating method for a battery module, and a heating system. The heating module includes: an energy storage unit, a first switch unit, a second switch unit and a control unit. The energy storage unit, a first battery unit in a battery module and the first switch unit may form a first heating loop; the energy storage unit, a second battery unit in the battery module, and the second switch unit may form a second heating loop. The control unit may control the first switch unit or the second switch unit, so as to sequentially switch on, between the first heating loop and the second heating loop, a heating loop where a battery unit with a higher state of charge is located and a heating loop where a battery unit with a lower state of charge is located.

公开(公告)号：US11735787B2

公开(公告)日：2023-08-22

申请号：US16953513

申请日：2020-11-20

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 ,  H01M10/657 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

CPC classification number: H01M10/657 ,  H01M10/425 ,  H01M10/441 ,  H01M10/443 ,  H01M10/482 ,  H01M10/486 ,  H02J7/00 ,  H02J7/00309 ,  H01M2010/4271 ,  H02J7/00304

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.

公开(公告)号：US11498451B2

公开(公告)日：2022-11-15

申请号：US17585581

申请日：2022-01-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingyuan Wu ,  Yanru Li ,  Yurui Song

IPC: B60L58/12 ,  H01M10/625 ,  B60L58/27 ,  B60L58/26 ,  G01R31/36

Abstract: The present application discloses a thermal management method for a battery pack. The method includes: under a condition that an electric vehicle is in a stationary state, obtaining a power-on time of the battery pack in the electric vehicle; under a condition of determining that the battery pack has a thermal management demand, determining a target temperature of the battery pack according to a connection state of a charging interface of the electric vehicle and a charging device; determining a thermal management starting time of the battery pack based on the target temperature of the battery pack and the power-on time; and under a condition that the thermal management starting time arrives, performing thermal management on the battery pack so that a temperature of the battery pack reaches the target temperature before the power-on time arrives.

公开(公告)号：US11407331B2

公开(公告)日：2022-08-09

申请号：US16972574

申请日：2019-01-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang Zuo ,  Zhimin Dan ,  Wei Zhang ,  Yizhen Hou ,  Guowei Li ,  Xingyuan Wu ,  Yanru Li

IPC: B60L58/27 ,  H02P27/08 ,  H01M10/63 ,  H01M10/615 ,  H02J7/00 ,  H01M10/625

Abstract: In a battery heating system an inverter includes a first-phase bridge arm, a second-phase bridge arm and a third-phase bridge arm connected in parallel, each of a upper bridge arm and a lower bridge arm is provided with a switch module, the switch module is connected in parallel with a buffer module; and a motor controller in the inverter is provided for providing driving signals to the switch module of a target upper bridge arm and the switch module of a target lower bridge arm to control the switch module of the upper bridge arm of any bridge arm among the three phases of bridge arms and the switch module of the lower bridge arm of at least one bridge arm among the bridge arms except the bridge arm where the switch module of the target upper bridge arm is located to be periodically turned on and off.

公开(公告)号：US11133543B2

公开(公告)日：2021-09-28

申请号：US16689143

申请日：2019-11-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingyuan Wu ,  Xingxing Li ,  Minjie Zheng ,  Haiqi Yang

IPC: H01M10/00 ,  H01M10/6568 ,  H01M10/625

Abstract: A thermal management device and a battery pack are provided. The thermal management device applied in a battery pack. The battery pack includes a case and a plurality of cells received in the case. The thermal management device includes: a thermal management loop attached to each cell and at least partially covering a part of a vent of each cell; a heat exchange member communicating with the thermal management loop; and a power component connected between the thermal management loop and the heat exchange member. A heat exchange medium with a fire-extinguishing function is provided within the thermal management loop. The thermal management loop is broken in a condition where at least one cell is subjected to thermal runaway such that the heat exchange medium flows into an explosion-proof port of the at least one cell.

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.