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公开(公告)号：US20200020217A1
公开(公告)日：2020-01-16
申请号：US16426695
申请日：2019-05-30
发明人： Zhiwei YAN , Fangjie ZHOU , Fuming YE
摘要： A smoke alarm system comprises a smoke alarm, a temperature detector, a first sampling circuit, a second sampling circuit and an analysis module; a first terminal of the first sampling circuit is connected to the smoke alarm, and a second terminal is connected to a first input terminal of the analysis module; the first sampling circuit is used for sampling from the smoke alarm to obtain a smoke sample value which is then output to the analysis module; a first terminal of the second sampling circuit is connected to the temperature detector, and a second terminal is connected to a second input terminal of the analysis module; the second sampling circuit is used for sampling from the temperature detector to obtain a temperature sample value which is then output to the analysis module; and the analysis module determines whether a smoke alarm signal is generated.
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公开(公告)号：US20200006961A1
公开(公告)日：2020-01-02
申请号：US16411390
申请日：2019-05-14
发明人： Fangjie ZHOU , Qiandeng LI , Fuming YE
IPC分类号： H02J7/00
摘要： Some embodiments relate to battery management technologies, and disclose a battery management system and an energy storage power station. The battery management system comprises: a plurality of CSC groups corresponding to a plurality of battery packs respectively, CSCs in each CSC group being connected to the battery units in a battery pack respectively; a plurality of SBMUs corresponding to the plurality of CSC groups respectively, each SBMU being connected to every CSC in a CSC group; an MBMU and an IMM, the MBMU being connected to every SBMU and connected to the IMM; the IMM further being connected to a plurality of the batteries, and used to acquire insulation parameter values of the plurality of the batteries.
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3.发明申请公开(公告)号：US20230064240A1
公开(公告)日：2023-03-02
申请号：US17562079
申请日：2021-12-27
发明人： Fangjie ZHOU , Yizhen HOU , Xiyang ZUO , Qiandeng LI , Le CHU
IPC分类号： G01R31/389 , G01R31/392 , G01N27/02
摘要： Embodiments of the present application provide a detection apparatus of electrochemical impedance spectroscopy and a battery management system, the detection apparatus including a waveform generator, where the waveform generator is integrated in a battery monitoring chip; an excitation resistor; a detection resistor; and an MOS switch, wherein the waveform generator is configured to generate a pulse waveform, a gate electrode of the MOS switch is configured to receive the pulse waveform; the excitation resistor is configured to enable the battery to generate an excitation current when the gate electrode of the MOS switch receives the pulse waveform; the detection resistor is configured to convert the excitation current into an excitation voltage, the excitation voltage is configured to calculate an electrochemical impedance of the battery, The detection apparatus of electrochemical impedance spectroscopy in embodiments of the present application can lower cost and volume of EIS detection.
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公开(公告)号：US20220113344A1
公开(公告)日：2022-04-14
申请号：US17557285
申请日：2021-12-21
发明人： Meng LI , Changjian LIU , Fuming YE , Fangjie ZHOU , Liansong WANG , Lidan YAN
摘要： Embodiments of this application relate to the monitoring field, and disclose a method for monitoring an insulation monitoring circuit and a battery management system. In some embodiments of this application, the method for monitoring an insulation monitoring circuit includes: in a state in which a first switch and a second switch are closed and a third switch is open, obtaining a first electrical signal detected by a second monitoring module; and based on the first electrical signal and a voltage reference value between a positive electrode of a battery pack and a negative electrode of the battery pack, determining whether an insulation monitoring circuit is faulty; or obtaining a second electrical signal detected by a first monitoring module and a third electrical signal detected by a third monitoring module, and based on the second electrical signal and the third electrical signal, determining whether the insulation monitoring circuit is faulty.
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公开(公告)号：US20210082267A1
公开(公告)日：2021-03-18
申请号：US17104560
申请日：2020-11-25
发明人： Zhiwei YAN , Fangjie ZHOU , Fuming YE
摘要： A smoke alarm system comprises a smoke alarm, a temperature detector, a first sampling circuit, a second sampling circuit and an analysis module; a first terminal of the first sampling circuit is connected to the smoke alarm, and a second terminal is connected to a first input terminal of the analysis module; the first sampling circuit is used for sampling from the smoke alarm to obtain a smoke sample value which is then output to the analysis module; a first terminal of the second sampling circuit is connected to the temperature detector, and a second terminal is connected to a second input terminal of the analysis module; the second sampling circuit is used for sampling from the temperature detector to obtain a temperature sample value which is then output to the analysis module; and the analysis module determines whether a smoke alarm signal is generated.
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