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公开(公告)号：US20200259360A1
公开(公告)日：2020-08-13
申请号：US16863350
申请日：2020-04-30
发明人： Shuichi Tagawa , Yousuke Takei
IPC分类号： H02J7/06 , H02M3/158 , H02J7/00 , H02J7/35 , H01M10/44 , H01M10/615 , H01M10/627 , H01M10/633 , H01M10/667 , H01M10/48
摘要： A battery module that includes a battery and a bidirectional DC-DC converter including a switching element that is arranged at a position where heat generated by the switching element is transmitted to the battery. The bidirectional DC-DC converter operates in a discharge mode in which DC power supplied from the battery is converted and supplied to an input/output unit, and in a charge mode in which DC power supplied from the input/output unit is converted and supplied to the battery. Moreover, a control unit forces the bidirectional DC-DC converter to operate in the discharge mode and to increase a switching frequency of the switching element in comparison with a switching frequency in normal driving, when a temperature in a periphery of the battery needs to be increased.
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公开(公告)号：US11462933B2
公开(公告)日：2022-10-04
申请号：US16863350
申请日：2020-04-30
发明人： Shuichi Tagawa , Yousuke Takei
IPC分类号： H02J7/06 , H02M3/158 , H02J7/00 , H02J7/35 , H01M10/44 , H01M10/615 , H01M10/627 , H01M10/633 , H01M10/667 , H01M10/48
摘要： A battery module that includes a battery and a bidirectional DC-DC converter including a switching element that is arranged at a position where heat generated by the switching element is transmitted to the battery. The bidirectional DC-DC converter operates in a discharge mode in which DC power supplied from the battery is converted and supplied to an input/output unit, and in a charge mode in which DC power supplied from the input/output unit is converted and supplied to the battery. Moreover, a control unit forces the bidirectional DC-DC converter to operate in the discharge mode and to increase a switching frequency of the switching element in comparison with a switching frequency in normal driving, when a temperature in a periphery of the battery needs to be increased.
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3.发明授权公开(公告)号：US10897190B2
公开(公告)日：2021-01-19
申请号：US16840851
申请日：2020-04-06
发明人： Yousuke Takei , Shuichi Tagawa
摘要： A storage device that includes a first switching circuit connected to a direct-current voltage bus and a second switching circuit connected between the first switching circuit and a DC-DC converter. A smoothing capacitor is connected between the DC-DC converter and the switching circuit. Moreover, the second switching circuit includes a pair of relays connected in series between the first switching circuit and the DC-DC converter and an inrush current prevention circuit connected in parallel with the series circuit of the relays. A first voltage sensor is connected to a node between the pair of relays and a second voltage sensor is connected between both terminals of the smoothing capacitor. A control unit determines the presence of welding at the relays on the basis of voltage values detected by the voltage sensors.
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4.发明申请公开(公告)号：US20200235664A1
公开(公告)日：2020-07-23
申请号：US16840851
申请日：2020-04-06
发明人： Yousuke Takei , Shuichi Tagawa
摘要： A storage device that includes a first switching circuit connected to a direct-current voltage bus and a second switching circuit connected between the first switching circuit and a DC-DC converter. A smoothing capacitor is connected between the DC-DC converter and the switching circuit. Moreover, the second switching circuit includes a pair of relays connected in series between the first switching circuit and the DC-DC converter and an inrush current prevention circuit connected in parallel with the series circuit of the relays. A first voltage sensor is connected to a node between the pair of relays and a second voltage sensor is connected between both terminals of the smoothing capacitor. A control unit determines the presence of welding at the relays on the basis of voltage values detected by the voltage sensors.
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