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公开(公告)号：US08890483B2
公开(公告)日：2014-11-18
申请号：US13143910
申请日：2010-07-30
CPC分类号： H01M10/42 , H01M2/34 , H01M10/48 , H02J7/0031
摘要： A protection circuit having: a connecting terminal for receiving a voltage for charging a rechargeable battery; a switching element interposed between the connecting terminal and the rechargeable battery; a temperature fuse for blocking a conductive path between the connecting terminal and the switching element; a heater for melting the temperature fuse; a voltage detection unit for detecting a voltage relating to the conductive path; a first abnormality detection unit for detecting occurrence of a first abnormality that is pre-set as a recoverable abnormality; a second abnormality detection unit for detecting occurrence of a second abnormality that is pre-set as an abnormality on the basis of which the temperature fuse should be melted; a protection control unit for turning OFF the switching element when the first abnormality is detected by the first abnormality detection unit; and a heater control unit for executing a temperature fuse melting process of applying the voltage of the conductive path to the heater when the second abnormality is detected by the second abnormality detection unit and the voltage detected by the voltage detection unit is not less than a predetermined threshold voltage.
摘要翻译： 一种保护电路，具有：用于接收用于对可充电电池充电的电压的连接端子; 插入在连接端子和可再充电电池之间的开关元件; 用于阻挡连接端子和开关元件之间的导电路径的温度保险丝; 用于熔化温度保险丝的加热器; 电压检测单元，用于检测与导电路径相关的电压; 第一异常检测单元，用于检测预先设定为可恢复异常的第一异常的发生; 第二异常检测单元，用于检测预先设定为异常的第二异常的发生，基于该异常，温度保险丝应被熔化; 保护控制单元，用于当所述第一异常检测单元检测到所述第一异常时，使所述开关元件断开; 以及加热器控制单元，用于当由第二异常检测单元检测到第二异常时，执行将导电路径的电压施加到加热器的温度熔丝熔化处理，并且由电压检测单元检测的电压不小于预定值 阈值电压。
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公开(公告)号：US20110133571A1
公开(公告)日：2011-06-09
申请号：US13058267
申请日：2010-03-24
CPC分类号： H02J7/0031 , H01M10/44 , H01M10/48 , Y10T307/832 , Y10T307/858
摘要： A protection circuit having: a connecting terminal which is connected to an external circuit and which inputs and outputs a charging/discharging current of a secondary battery to and from the external circuit; a voltage detection unit for detecting an output voltage of the secondary battery; a current detection unit for detecting a discharging current of the secondary battery; a power consumption calculation unit for calculating power consumption of the external circuit by multiplying a value of the output voltage detected by the voltage detection unit by a value of the discharging current detected by the current detection unit; and an external protection unit for executing external protection processing of protecting the external circuit when the power consumption calculated by the power consumption calculation unit exceeds a power threshold set to a value that is not less than a maximum value of power consumption of the external circuit.
摘要翻译： 一种保护电路，具有：连接端子，其连接到外部电路，并且向外部电路输入和输出二次电池的充电/放电电流; 电压检测单元，用于检测二次电池的输出电压; 电流检测单元，用于检测二次电池的放电电流; 功率消耗计算单元，用于通过将由电压检测单元检测的输出电压的值乘以由电流检测单元检测的放电电流的值来计算外部电路的功耗; 以及外部保护单元，用于当由所述功耗计算单元计算的功耗超过设定为不小于所述外部电路的功耗的最大值的值的功率阈值时，执行用于保护所述外部电路的外部保护处理。
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公开(公告)号：US08796996B2
公开(公告)日：2014-08-05
申请号：US13142971
申请日：2010-06-04
CPC分类号： H02J7/0073 , H01M2/34 , H01M2/348 , H01M10/425 , H01M10/44 , H01M10/46 , H01M10/48 , H01M10/486 , H01M2200/10 , Y02E60/12
摘要： A charge control circuit includes a charge control unit that controls an operation of a charging unit that charges a rechargeable battery; and a voltage detection unit that detects a terminal voltage of the rechargeable battery, wherein when a terminal voltage of the rechargeable battery as detected by the voltage detection unit is lower than a predetermined first threshold-value voltage, being lower than a full-charge voltage which is a terminal voltage of the rechargeable battery in full charge, the charge control unit causes a constant current charging to the rechargeable battery by requesting the charging unit to supply a charging current of a predetermined first current value, causing the charging unit to supply a charging current of the first current value to the rechargeable battery, when the terminal voltage of the rechargeable battery as detected by the voltage detection unit exceeds the first threshold-value voltage but is less than the full charge voltage, the charge control unit causes the constant current charging to the rechargeable battery by requesting the charging unit to supply a charging current of a second current value that is smaller than the first current value, causing the charging unit to supply a charging current of the second current value to the rechargeable battery, and when the terminal voltage of the rechargeable battery as detected by the voltage detection unit is equal to or greater than the full charge voltage, the charge control unit causes a constant voltage charging to be carried out by causing the charging unit to supply the full charge voltage to the rechargeable battery, as a charge voltage.
摘要翻译： 充电控制电路包括充电控制单元，其控制对可再充电电池充电的充电单元的操作; 以及电压检测单元，其检测所述可再充电电池的端子电压，其中当由所述电压检测单元检测到的所述可再充电电池的端子电压低于预定的第一阈值电压时，低于满充电电压 所述充电控制单元是充满电的充电电池的端子电压，通过请求所述充电单元提供预定的第一电流值的充电电流，对所述充电电池进行恒定电流充电，从而使所述充电单元 当由电压检测单元检测到的可充电电池的端子电压超过第一阈值电压但小于满充电电压时，充电控制单元使恒定电流值达到恒定值 通过请求充电单元提供一次充电电流，向充电电池充电 小于第一电流值的电流值，使得充电单元向可再充电电池提供第二电流值的充电电流，并且当由电压检测单元检测到的可再充电电池的端子电压等于 或大于满充电电压时，充电控制单元通过使充电单元向充电电池提供完全充电电压来进行恒压充电，作为充电电压。
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公开(公告)号：US20110273137A1
公开(公告)日：2011-11-10
申请号：US13143910
申请日：2010-07-30
CPC分类号： H01M10/42 , H01M2/34 , H01M10/48 , H02J7/0031
摘要： A protection circuit having: a connecting terminal for receiving a voltage for charging a rechargeable battery; a switching element interposed between the connecting terminal and the rechargeable battery; a temperature fuse for blocking a conductive path between the connecting terminal and the switching element; a heater for melting the temperature fuse; a voltage detection unit for detecting a voltage relating to the conductive path; a first abnormality detection unit for detecting occurrence of a first abnormality that is pre-set as a recoverable abnormality; a second abnormality detection unit for detecting occurrence of a second abnormality that is pre-set as an abnormality on the basis of which the temperature fuse should be melted; a protection control unit for turning OFF the switching element when the first abnormality is detected by the first abnormality detection unit; and a heater control unit for executing a temperature fuse melting process of applying the voltage of the conductive path to the heater when the second abnormality is detected by the second abnormality detection unit and the voltage detected by the voltage detection unit is not less than a predetermined threshold voltage.
摘要翻译： 一种保护电路，具有：用于接收用于对可充电电池充电的电压的连接端子; 插入在连接端子和可再充电电池之间的开关元件; 用于阻挡连接端子和开关元件之间的导电路径的温度保险丝; 用于熔化温度保险丝的加热器; 电压检测单元，用于检测与导电路径相关的电压; 第一异常检测单元，用于检测预先设定为可恢复异常的第一异常的发生; 第二异常检测单元，用于检测预先设定为异常的第二异常的发生，基于该异常，温度保险丝应被熔化; 保护控制单元，用于当所述第一异常检测单元检测到所述第一异常时，使所述开关元件断开; 以及加热器控制单元，用于当由第二异常检测单元检测到第二异常时，执行将导电路径的电压施加到加热器的温度熔丝熔化处理，并且由电压检测单元检测的电压不小于预定值 阈值电压。
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公开(公告)号：US08030893B2
公开(公告)日：2011-10-04
申请号：US12296759
申请日：2007-04-05
申请人： Toshiyuki Nakatsuji
发明人： Toshiyuki Nakatsuji
IPC分类号： H02J7/00
CPC分类号： H02J7/0021 , H01M10/441 , H02J7/0016 , H02J7/0024
摘要： The battery pack includes an assembled battery including a plurality of secondary battery cells connected at least in series; a voltage detector which detects a terminal voltage of each of the plurality of secondary battery cells; a charge/discharge controller which controls charge/discharge of the assembled battery based on the terminal voltage of each cell detected by the voltage detector; a short-circuiting section which short-circuits a node between cells to the high voltage side or the low voltage side of a power line, or which short-circuits nodes between the cells to each other; and a disconnection detector which controls conduction/non-conduction of the short-circuiting section and which detects a disconnection of the connection line from the voltage detector to the node between the cells, based on a state of controlling the conduction/non-conduction, and at least one of a voltage at the node between the cells detected by the voltage detector, a voltage of the high voltage side or the low voltage side of the power line, and a terminal voltage of each cell. The floating (disconnection) of intermediate taps of the secondary battery cells can be reliably detected without causing losses in regular processes.
摘要翻译： 电池组包括：至少串联连接的多个二次电池单体的组电池; 电压检测器，其检测所述多个二次电池单元中的每一个的端子电压; 充电/放电控制器，其基于由电压检测器检测的每个电池的端子电压来控制组电池的充电/放电; 短路部分将电池之间的节点短路到电力线的高压侧或低压侧，或者使电池之间的节点彼此短路; 以及断开检测器，其基于控制所述导通/非导通的状态来控制所述短路部的导通/不导通，并且检测所述连接线与所述电压检测器到所述电池之间的节点的断开， 以及由电压检测器检测的电池之间的节点处的电压，电力线的高压侧或低压侧的电压以及每个电池的端子电压中的至少一个。 可以可靠地检测二次电池单元的中间抽头的浮动（断开），而不会在正常处理中造成损失。
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6.发明申请BATTERY INTERNAL SHORT-CIRCUIT DETECTING DEVICE AND METHOD, BATTERY PACK, AND ELECTRONIC DEVICE SYSTEM 审中-公开电池内部短路检测装置及方法，电池组及电子装置系统公开(公告)号：US20100201321A1
公开(公告)日：2010-08-12
申请号：US12670796
申请日：2008-07-23
IPC分类号： H02J7/00
CPC分类号： H01M10/486 , B60L3/0038 , B60L3/0046 , B60L3/0069 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2260/44 , G01R31/025 , G01R31/382 , G01R31/389 , H01M10/052 , H01M10/425 , H01M10/448 , Y02E60/122
摘要： A battery internal short-circuit detecting device has: a battery temperature detection unit for detecting a battery temperature Tr; an ambient temperature detection unit for detecting an ambient temperature Te; an average heating value detection unit for detecting an average value Pav of battery heating values per predetermined first period ΔW1, which are generated by discharging or charging the battery; a battery temperature estimation unit for obtaining a battery temperature Tp estimated to be reached after a lapse of a predetermined second period ΔW2 since the detection of the average value Pav of the heating values, based on the average value Pav of the heating values and the ambient temperature Te; and an internal short-circuit determination unit for determining that an internal short circuit has occurred when the actual battery temperature Tr after the lapse of the second period ΔW2 is equal to or greater than the sum of the estimated battery temperature Tp and a predetermined coefficient α.
摘要翻译： 电池内部短路检测装置具有：电池温度检测单元，用于检测电池温度Tr; 环境温度检测单元，用于检测环境温度Te; 平均热值检测单元，用于检测通过对电池进行放电或充电而产生的每预定第一周期的电池发热值的平均值Pav; 电池温度估计单元，用于获得在经过预定的第二时段＆Dgr; W2之后所估计的电池温度Tp;基于热值的平均值Pav，检测到加热值的平均值Pav， 环境温度Te; 以及内部短路确定单元，用于当经过第二时段＆Dgr; W2之后的实际电池温度Tr等于或大于估计电池温度Tp和预定电池温度T t之和时，确定发生了内部短路 系数α。
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公开(公告)号：US08648572B2
公开(公告)日：2014-02-11
申请号：US13058267
申请日：2010-03-24
CPC分类号： H02J7/0031 , H01M10/44 , H01M10/48 , Y10T307/832 , Y10T307/858
摘要： A protection circuit having: a connecting terminal which is connected to an external circuit and which inputs and outputs a charging/discharging current of a secondary battery to and from the external circuit; a voltage detection unit for detecting an output voltage of the secondary battery; a current detection unit for detecting a discharging current of the secondary battery; a power consumption calculation unit for calculating power consumption of the external circuit by multiplying a value of the output voltage detected by the voltage detection unit by a value of the discharging current detected by the current detection unit; and an external protection unit for executing external protection processing of protecting the external circuit when the power consumption calculated by the power consumption calculation unit exceeds a power threshold set to a value that is not less than a maximum value of power consumption of the external circuit.
摘要翻译： 一种保护电路，具有：连接端子，其连接到外部电路，并且向外部电路输入和输出二次电池的充电/放电电流; 电压检测单元，用于检测二次电池的输出电压; 电流检测单元，用于检测二次电池的放电电流; 功率消耗计算单元，用于通过将由电压检测单元检测的输出电压的值乘以由电流检测单元检测的放电电流的值来计算外部电路的功耗; 以及外部保护单元，用于当由所述功耗计算单元计算的功耗超过设定为不小于所述外部电路的功耗的最大值的值的功率阈值时，执行用于保护所述外部电路的外部保护处理。
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8.发明授权Full charge capacity value correction circuit, battery pack, and charging system 有权全充电容量值校正电路，电池组和充电系统公开(公告)号：US08405356B2
公开(公告)日：2013-03-26
申请号：US13381580
申请日：2011-02-28
CPC分类号： G01R31/3624 , G01R31/3651
摘要： A full charge capacity value correction circuit includes: a current detection portion which detects a current value in a secondary battery; a voltage detection portion which detects a terminal voltage value of the secondary battery; a capacity storage portion which stores a full charge capacity value of the secondary battery; a remaining quantity calculation portion which calculates a remaining charging quantity in the secondary battery a remaining quantity estimation portion which estimates a remaining quantity of the secondary battery and a full charge capacity value correction portion which, when an estimated remaining quantity becomes equal to a reference value set in advance, adds a difference electrical quantity, to the full charge capacity value stored in the capacity storage portion, or subtracts the difference electrical quantity from the full charge capacity value stored in the capacity storage portion based on an estimated remaining quantity and an accumulated remaining quantity.
摘要翻译： 完全充电容量值校正电路包括：检测二次电池中的电流值的电流检测部分; 电压检测部，其检测二次电池的端子电压值; 存储所述二次电池的充电容量值的容量存储部; 剩余量计算部分，其计算二次电池中剩余量的估计部分估计二次电池的剩余量，剩余量计算部分和估计剩余量等于参考值的完全充电容量值校正部分 将存储在容量存储部中的完全充电容量值加上差电量，或者根据存储在容量存储部中的全充电容量值，根据估计的剩余量和累计 剩余数量。
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9.发明授权Battery internal short-circuit detection apparatus and method, and battery pack 有权电池内部短路检测装置及方法及电池组公开(公告)号：US08334699B2
公开(公告)日：2012-12-18
申请号：US12602752
申请日：2008-06-04
IPC分类号： G01N27/416 , H02J7/00 , H02J7/04
CPC分类号： H01M10/48 , G01R31/025 , G01R31/36 , H01M10/052 , H01M10/4235 , H01M2200/00
摘要： A battery internal short-circuit detection apparatus includes: a voltage detection unit for detecting a terminal voltage of the battery; a current detection unit for detecting a discharging current of the battery; a voltage drop and recovery detection unit for detecting a momentary voltage drop of the battery and a recovery from the voltage drop, in response to a result of detection performed by the voltage detection unit; and a determination unit for determining that an internal short circuit has occurred, when a maximum value of the discharging current detected by the current detection unit between the voltage drop and the recovery is equal to or lower than a threshold current.
摘要翻译： 电池内部短路检测装置包括：电压检测单元，用于检测电池的端子电压; 用于检测电池的放电电流的电流检测单元; 响应于由电压检测单元进行的检测的结果，用于检测电池的瞬时电压降和从电压降恢复的电压降和恢复检测单元; 以及当电压检测单元在电压降和恢复之间检测到的放电电流的最大值等于或低于阈值电流时，确定发生内部短路的确定单元。
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10.发明申请BATTERY INTERNAL SHORT-CIRCUIT DETECTION APPARATUS AND METHOD, AND BATTERY PACK 有权电池内部短路检测装置和方法以及电池组公开(公告)号：US20100188050A1
公开(公告)日：2010-07-29
申请号：US12602752
申请日：2008-06-04
IPC分类号： H02J7/00
CPC分类号： H01M10/48 , G01R31/025 , G01R31/36 , H01M10/052 , H01M10/4235 , H01M2200/00
摘要： A battery internal short-circuit detection apparatus includes: a voltage detection unit for detecting a terminal voltage of the battery; a current detection unit for detecting a discharging current of the battery; a voltage drop and recovery detection unit for detecting a momentary voltage drop of the battery and a recovery from the voltage drop, in response to a result of detection performed by the voltage detection unit; and a determination unit for determining that an internal short circuit has occurred, when a maximum value of the discharging current detected by the current detection unit between the voltage drop and the recovery is equal to or lower than a threshold current.
摘要翻译： 电池内部短路检测装置包括：电压检测单元，用于检测电池的端子电压; 用于检测电池的放电电流的电流检测单元; 响应于由电压检测单元进行的检测的结果，用于检测电池的瞬时电压降和从电压降恢复的电压降和恢复检测单元; 以及当电压检测单元在电压降和恢复之间检测到的放电电流的最大值等于或低于阈值电流时，确定发生内部短路的确定单元。
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