TESTING METHOD FOR A THERMAL CONTACT
    2.
    发明公开

    公开(公告)号:US20230324233A1

    公开(公告)日:2023-10-12

    申请号:US18210268

    申请日:2023-06-15

    CPC classification number: G01K7/24 H01M10/486 H01M2010/4271

    Abstract: A testing method for a thermal contact between a temperature sensor and a battery cell of a battery module, includes measuring a temperature T1 of the temperature sensor at a time point t1, heating the temperature sensor for a defined time (t2−t1) and/or (t3−t1), measuring a temperature T2 of the temperature sensor at a time point t2 and/or a temperature T3 of the temperature sensor at a time point t3, and determining the thermal contact between the temperature sensor and the battery cell based on at least one of the temperature differences ΔT2,1=(T2−T1), ΔT3,1=(T3−T1) and ΔT3,2=(T3−T2) and a heat transfer coefficient determined thereby. Also, a testing circuit for a temperature sensor of a battery module includes a thermistor with a first node connected to a first supply voltage and a second node connected to ground, a switch interconnected between the first node of the thermistor and a second supply voltage, and an analog-to-digital converter connected in parallel to the thermistor. Also, a cell supervision circuit for a battery module including a circuit carrier, a testing circuit, and a temperature sensor surface mounted to the circuit carrier and having a measuring head with a thermistor configured to be brought into thermal contact with a battery cell of the battery module.

    CELL SUPERVISION CIRCUIT FOR A BATTERY MODULE

    公开(公告)号:US20230332957A1

    公开(公告)日:2023-10-19

    申请号:US18212310

    申请日:2023-06-21

    CPC classification number: G01K7/24 H01M10/486 H01M2010/4271

    Abstract: A testing method for a thermal contact between a temperature sensor and a battery cell of a battery module, includes measuring a temperature T1 of the temperature sensor at a time point t1, heating the temperature sensor for a defined time (t2−t1) and/or (t3−t1), measuring a temperature T2 of the temperature sensor at a time point t2 and/or a temperature T3 of the temperature sensor at a time point t3, and determining the thermal contact between the temperature sensor and the battery cell based on at least one of the temperature differences ΔT2,1=(T2−T1), ΔT3,1=(T3−T1) and ΔT3,2=(T3−T2) and a heat transfer coefficient determined thereby. Also, a testing circuit for a temperature sensor of a battery module includes a thermistor with a first node connected to a first supply voltage and a second node connected to ground, a switch interconnected between the first node of the thermistor and a second supply voltage, and an analog-to-digital converter connected in parallel to the thermistor. Also, a cell supervision circuit for a battery module including a circuit carrier, a testing circuit, and a temperature sensor surface mounted to the circuit carrier and having a measuring head with a thermistor configured to be brought into thermal contact with a battery cell of the battery module.

    TEMPERATURE SENSOR THERMAL CONTACT TESTING METHOD AND CIRCUIT

    公开(公告)号:US20210234208A1

    公开(公告)日:2021-07-29

    申请号:US16761884

    申请日:2018-06-01

    Abstract: The present invention relates to a testing method for the thermal contact between a temperature sensor (50) and a battery cell (10) of a battery module (30), wherein the method comprises the steps of measuring a temperature T1 of the temperature sensor (50) at a time point t1, heating the temperature sensor (50) for a defined time (t2-t1), measuring a temperature T2 of the temperature sensor (50) at a time point t2 and/or a temperature T3 of the temperature sensor (50) at a time point t3, and determining the thermal contact between the temperature sensor (50) and the battery cell (10) based on at least one of the temperature differences ΔT2,1=(T2-T1), ΔT3,1=(T3-T1) and/or ΔT3,2=(T3-T2). The invention further relates to a testing circuit (60) for a temperature sensor (50) of a battery module (30), comprising a thermistor (61) with a first node (67) connected to a first supply voltage (65) and a second node (68) connected to ground (69), a switch (63) interconnected between the first node (67) of the thermistor (61) and a second supply voltage (66), and an analog-to-digital converter (64) connected in parallel to the thermistor (61). The invention further relates to a cell supervision circuit (40) for a battery module (30), comprising a circuit carrier (45), a testing circuit (60) according to any one of the claims 1 to 10, and a temperature sensor (50) surface mounted to the circuit carrier (45) and comprising a measuring head (51) with

    BATTERY SYSTEM WITH A CELL CONNECTING UNIT
    8.
    发明申请

    公开(公告)号:US20190288262A1

    公开(公告)日:2019-09-19

    申请号:US16345162

    申请日:2017-10-26

    Abstract: The present invention refers to a battery system (300) which comprises a cell stack (20), wherein at least two battery cells (10) of the cell stack (20) are electrically interconnected via a battery cell connector (90). The battery system (30) comprises a printed circuit board, PCB (150), and a cell connecting unit, CCU (140). The battery cell connector (90) is accommodated in the CCU (140), the CCU (140) being fixed onto the cell stack (20) and comprising one first flexible bracket (145) that is inserted into a corresponding mounting hole (151) of the PCB (150). According to the invention, the first flexible bracket (145) of the CCU (140) comprises a member (146) configured to fix the PCB (150) to the CCU (140) after the member (146) has been molten in a state in which the first flexible bracket (145) was inserted into the corresponding mounting hole (151).

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