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    ENERGY STORAGE APPARATUS
    1.
    发明公开
    ENERGY STORAGE APPARATUS 审中-公开

    公开(公告)号：US20240072549A1

    公开(公告)日：2024-02-29

    申请号：US18384605

    申请日：2023-10-27

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Xinwei CHEN ,  Xiangtao LI ,  Yu YAN ,  Zhimin DAN ,  Qidong LOU

    IPC: H02J7/00

    CPC classification number: H02J7/00308 ,  H02J7/0016 ,  H02J2207/20

    Abstract: An energy storage apparatus includes a control circuit, multiple battery clusters connected in parallel, and switch circuits corresponding to the battery clusters. The switch circuit includes a first switch and a protection circuit connected in parallel. The control circuit is connected to each first switch and each protection circuit. Each battery cluster is connected to the corresponding first switch and protection circuit. The control circuit is configured to control, according to a high voltage on signal, the protection circuit to be closed and the first switch to be opened.

    STORAGE BATTERY MONITORING SYSTEM AND METHOD
    2.
    发明申请
    STORAGE BATTERY MONITORING SYSTEM AND METHOD 有权

    公开(公告)号：US20220137152A1

    公开(公告)日：2022-05-05

    申请号：US17433998

    申请日：2020-02-25

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Huixiu LUO ,  Yu LIU ,  Qidong LOU ,  Qiandeng LI

    IPC: G01R31/396 ,  H01M10/48

    Abstract: Embodiments of the present disclosure relate to the field of battery monitoring technology, and disclose a storage battery monitoring system and method. The system includes n cell monitoring cells (CMCs), a control module (11), and several daisy chain buses; where n is an integer greater than or equal to 2; the n CMCs are configured to monitor a plurality of cell modules electrically connected in a storage battery, and each CMC is configured to monitor at least one of the cell modules; the n CMCs are connected to the control module (11) through each daisy chain bus; the control module is configured to receive monitoring data of the plurality of cell modules uploaded by then CMCs through a transmission path formed by at least one daisy chain bus; and the control module (11) is further configured to identify a fault location according to the monitoring data when a fault occurring to the transmission path is detected, and adjust the transmission path according to the fault location so as to receive the monitoring data. According to the solutions provided by each embodiment of the present disclosure, the problem of communication failure due to the occurrence of a fault in the current transmission path can be avoided, and safety is improved.

    CONTROL SYSTEM
    3.
    发明申请
    CONTROL SYSTEM 审中-公开

    公开(公告)号：US20200251918A1

    公开(公告)日：2020-08-06

    申请号：US16671360

    申请日：2019-11-01

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Yanhui FU ,  Qidong LOU ,  Xinxin JIANG ,  Qiandeng LI

    IPC: H02J7/00

    Abstract: The present disclosure provides a control system, comprising a controller and a plurality of power regulating modules; the plurality of power regulating modules comprise at least one first power regulating module and at least one second power regulating module, the first power regulating module is woken up upon receiving an external wake-up signal, the controller is connected to an output end of one of the first power regulating modules, and an output end of the second power regulating module is connected to a load module; the controller is further connected to a wake-up end of the second power regulating module; the first power regulating module connected to the controller supplies power to the controller; the at least one second power regulating module is woken up upon receiving an internal wake-up signal sent by the powered on controller or upon receiving the external wake-up signal.

    CHARGING METHOD, CHARGING APPARATUS, AND CHARGING SYSTEM FOR TRACTION BATTERY
    6.
    发明公开
    CHARGING METHOD, CHARGING APPARATUS, AND CHARGING SYSTEM FOR TRACTION BATTERY 审中-公开

    公开(公告)号：US20230261487A1

    公开(公告)日：2023-08-17

    申请号：US18305570

    申请日：2023-04-24

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Jinbo CAI ,  Qidong LOU ,  Wei ZHANG

    IPC: H02J7/00 ,  B60L53/53 ,  B60L58/12 ,  B60L53/24 ,  B60L53/60

    CPC classification number: H02J7/0024 ,  B60L53/53 ,  B60L58/12 ,  B60L53/24 ,  B60L53/60 ,  B60L2210/10 ,  B60L2210/30

    Abstract: Charging method and charging apparatus for traction battery are provided. The charging apparatus includes N energy storage units connected in parallel. Each energy storage unit includes an energy storage battery and a first DC/DC converter connected to the energy storage battery. Each charging period of the charging apparatus includes a stage in which a traction battery is charged and a stage in which the traction battery discharges to the N energy storage units. The charging method includes: obtaining a first parameter of each energy storage unit in the discharge stage; determining, based on the first parameter, a first current output by the first DC/DC converter in each energy storage unit, where the first current is inversely proportional to the first parameter of the energy storage battery; and sending the first current to the first DC/DC converter. The energy storage battery receives, via the first DC/DC converter, electrical energy released by the traction battery.

    BATTERY HEATING SYSTEM AND METHOD
    7.
    发明申请
    BATTERY HEATING SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20200350649A1

    公开(公告)日：2020-11-05

    申请号：US16964314

    申请日：2019-11-29

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Yu LIU ,  Qidong LOU ,  Qiandeng LI

    IPC: H01M10/6571 ,  H01M10/633 ,  H01M10/615

    Abstract: Battery heating systems and methods are provided in the present disclosure. A battery heating system includes: a temperature sampling module configured to collect a target sampling temperature; a first switch configured to be turned on or off based on a driving signal; a control module configured to determine, based on the target sampling temperature and a correspondence between the target sampling temperature and the driving signal, a duration where the first switch is controlled to be turned on and a duration where the first switch is controlled to be turned off, and generate the driving signal; and a heating module configured to heat the battery module set using an output power of the battery module set when the first switch is turned on, and stop heating the battery module set when the first switch is turned off. As a result, fineness of battery heating can be improved.

    INSULATION DETECTION METHOD
    8.
    发明申请
    INSULATION DETECTION METHOD 审中-公开

    公开(公告)号：US20200072896A1

    公开(公告)日：2020-03-05

    申请号：US16364390

    申请日：2019-03-26

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Le CHU ,  Qiandeng LI ,  Yanhui FU ,  Qidong LOU

    IPC: G01R31/14 ,  G01R31/02 ,  G01R31/389 ,  G01R31/3835 ,  G01R27/14

    Abstract: Disclosed is an insulation detection method that includes: a first and second equivalent resistances are calculated; the less one of the first and second equivalent resistances is taken as a first insulation resistance, which is an insulation resistance of the high voltage circuit on the side where the battery pack locates relative to the reference potential terminal; when the first insulation resistance is normal, the switch unit is closed, and a second insulation resistance is calculated according to the first and second equivalent resistances, voltages of a first and second sampling point when the switch unit is closed; the second insulation resistance is an insulation resistance of the high voltage circuit on the side where the load locates relative to the reference potential terminal; the insulation state of the high voltage circuit on the side where the load locates is determined according to the second insulation resistance.

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