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公开(公告)号：US20210075069A1
公开(公告)日：2021-03-11
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
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.
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公开(公告)号：US20200350935A1
公开(公告)日：2020-11-05
申请号：US16930659
申请日：2020-07-16
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yizhen HOU , Zhimin DAN , Wei ZHANG , Jiechao LUO , Wenbin LU , Jia XU , Teng YU
Abstract: A system comprises an antenna, a port converting device, an information transmission device, a shield case, and a reference voltage end; wherein the antenna, the port converting device, and the information transmission device are connected sequentially, and the information transmission device is disposed within the shield case, and both the shield case and the port converting device is connected with the reference voltage end; the antenna is configured for a conversion between a radio frequency signal and a single-ended signal; the port converting device is configured for a conversion between the single-ended signal and target differential mode signals; the information transmission device is configured to transmit and process the target differential mode signals; and parameters of components in the port converting device is determined according to a preset communication frequency and a voltage amplitude and phase of a differential mode signal.
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公开(公告)号：US20190120906A1
公开(公告)日：2019-04-25
申请号：US16165811
申请日：2018-10-19
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Zhimin DAN , Wei Zhang , Yizhen Hou , Jia Xu
Abstract: The present disclosure provides a current detection system, method and device. The current detection system includes a management unit and a current detection device that is connected with the management unit. The current detection device includes a shunt-type current measurement unit, an open-loop Hall-type current measurement unit and an isolation power unit.
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14.发明公开公开(公告)号：US20240250548A1
公开(公告)日：2024-07-25
申请号：US18594808
申请日：2024-03-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuanmiao ZHAO , Zhimin DAN , Yu YAN , Zhanliang LI , Xiaojian HUANG , Xinwei CHEN
CPC classification number: H02J7/00712 , B60L58/18 , H02J7/0014 , B60L2240/547
Abstract: A voltage regulation circuit for traction battery includes a traction battery, a heating module, a charge/discharge interface, and a voltage regulation module. The heating module includes a power storage element and a switch module. The traction battery is connected in parallel to the switch module. An external charging and discharging device is connected in parallel to the traction battery through the charge/discharge interface. The voltage regulation module includes a plurality of switches and a power storage regulation element, and the plurality of switches and the power storage regulation element are disposed between the charge/discharge interface and the traction battery. The voltage regulation module and the switch module are configured to regulate, in response to a voltage regulation control signal, a charge/discharge voltage between the traction battery and the power storage element and a charge voltage of the external charging and discharging device for the traction battery.
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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.
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Patent Agency Ranking
公开(公告)号：US20240010103A1
公开(公告)日：2024-01-11
申请号：US18370418
申请日：2023-09-20
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhanliang LI , Yu YAN , Zhimin DAN , Xinwei CHEN , Yuanmiao ZHAO , Xiaojian HUANG , Jinfeng GAO
CPC classification number: B60L58/27 , H02J7/007194 , H02J7/00714 , H02J7/007182 , H02J7/0047 , B60L2210/10 , H02J2207/20
Abstract: Embodiments of the present application provide a battery heating method, a charging device, and a battery management system, which can effectively heat a power battery. The method may be performed by a charging device, the method including: receiving first instruction information from a control device of a power battery before the charging device charges the power battery, where the first instruction information may be used to instruct the charging device to heat the power battery; and heating the power battery according to the first instruction information.
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公开(公告)号：US20230387492A1
公开(公告)日：2023-11-30
申请号：US18450375
申请日：2023-08-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xinwei CHEN , Yu YAN , Zhimin DAN , Zhanliang LI , Yizhen HOU , Wei ZHANG
IPC: H01M10/615 , H01M10/633 , G01R31/36 , G01R31/367
CPC classification number: H01M10/615 , H01M10/633 , G01R31/3648 , G01R31/367 , H01M2220/20
Abstract: A battery heating system includes a voltage conversion unit configured to be electrically connected to a power source and to a battery to be heated, and a control unit. The voltage conversion unit receives a first voltage input by the power source or a second voltage input by the battery to be heated. The control unit acquires a charging and discharging frequency of the voltage conversion unit, determines a charge transfer impedance of the battery to be heated according to the charging and discharging frequency, calculates a safe amplitude current of the battery to be heated according to the charge transfer impedance, and sends a control signal to the voltage conversion unit according to the charging and discharging frequency and the safe amplitude current to cause the voltage conversion unit to perform boost or buck processing of the first voltage or the second voltage according to the control signal.
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18.发明公开公开(公告)号：US20230384395A1
公开(公告)日：2023-11-30
申请号：US18310065
申请日：2023-05-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Chunfa WANG , Yanming ZHAO , Zhimin DAN , Yu YAN , Yuan YAO , Xiao WANG , Xiyang ZUO
CPC classification number: G01R31/40 , H02M1/0067 , H02M7/44
Abstract: System and method for testing power conversion devices are provided. A power supply grid is connected to an AC terminal of a first power conversion device, the power supply grid is also connected to an AC terminal of the second power conversion device, and a DC terminal of the first power conversion device is connected to a DC terminal of the second power conversion device. In this way, a test loop is formed by the power supply grid, the first power conversion device and the second power conversion device. In this test loop, the first power conversion device and the second power conversion device act as a load and a power source, so no additional DC power supply and load are required during the test.
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公开(公告)号：US20230207915A1
公开(公告)日：2023-06-29
申请号：US17886228
申请日：2022-08-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Wei CHEN , Xiaojian HUANG , Yuanmiao ZHAO , Zhimin DAN
IPC: H01M10/615 , H01M10/625 , H01M10/63
CPC classification number: H01M10/615 , H01M10/625 , H01M10/63 , H01M2220/20
Abstract: A battery heating control method includes collecting a battery parameter of a battery module, in response to the battery parameter of the battery module meeting a preset heating condition, controlling a traction battery and a feed battery of the battery module to charge and discharge each other so that the battery module is heated through mutual charge and discharge of the traction battery and the feed battery, and controlling the traction battery of the battery module to power a motor of a vehicle.
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公开(公告)号：US20230144700A1
公开(公告)日：2023-05-11
申请号：US17866806
申请日：2022-07-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuan YAO , Weichen HE , Huaisen ZHANG , Guiying LIN , Jinfeng GAO , Zhimin DAN
CPC classification number: H02M1/4241 , H02J3/322 , H02M1/4266
Abstract: This application discloses an electrical system and an electrical apparatus. The electrical system includes: a first-stage conversion module including a plurality of first controllable switches; a second-stage conversion module including a plurality of second controllable switches; a first digital signal processor configured to control the first controllable switch; and a second digital signal processor configured to control the second controllable switch, where a first output crossbar switch of the first digital signal processor is configured to supply a first internal signal to a first output port, so that the second digital signal processor receives the first internal signal within a preset time through a second input port. The internal signal of the first digital signal processor can be enabled to be transmitted to the second digital signal processor within a relatively short time, thereby reducing a time interval for triggering a protection action between the two digital signal processors.
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