Battery charger capable of accurately detecting battery temperature for full charge determination
    1.
    发明授权
    Battery charger capable of accurately detecting battery temperature for full charge determination 失效
    电池充电器能够准确检测电池温度以进行全电荷测定

    公开(公告)号:US07064523B2

    公开(公告)日:2006-06-20

    申请号:US10892183

    申请日:2004-07-16

    IPC分类号: H02J7/04

    CPC分类号: H02J7/0091

    摘要: A battery charger for charging a battery pack having a battery, a temperature sensor for sensing a temperature of the battery, and a battery terminal. The battery charger includes a charger terminal to which the battery terminal is connected when the battery is charged, a charge current generating circuit that generates a charge current for charging the battery, a battery temperature detector, and a controller. The battery temperature detector is configured to include a circuit, for example, to detect a temperature of the battery while cooperating with the temperature sensor and to output a temperature signal indicative of the temperature of the battery. The controller which is supplied with the temperature signal from the battery temperature detector, corrects the temperature signal, and provides a corrected temperature signal.

    摘要翻译: 一种用于对具有电池的电池组充电的电池充电器,用于感测电池的温度的温度传感器和电池端子。 电池充电器包括在电池充电时电池端子被连接的充电器端子,产生用于对电池充电的充电电流的充电电流产生电路,电池温度检测器和控制器。 电池温度检测器被配置为包括电路,例如在与温度传感器协作的同时检测电池的温度,并输出指示电池的温度的温度信号。 提供有来自电池温度检测器的温度信号的控制器校正温度信号,并提供校正的温度信号。

    DC power source unit with battery charging function
    2.
    发明授权
    DC power source unit with battery charging function 有权
    直流电源单元带电池充电功能

    公开(公告)号:US07196911B2

    公开(公告)日:2007-03-27

    申请号:US10892185

    申请日:2004-07-16

    IPC分类号: H02M3/335 H02J7/00 H01F17/00

    CPC分类号: H02J7/022 H02J7/0031

    摘要: A DC power source unit supplies a DC voltage to a power tool through an adapter when a power switch of the tool is turned ON and also charges a battery pack used as an alternative power source of the tool when the power tool is not operated. In order to prevent a rush current from flowing in a switch interposed between a switching power source circuit and the battery pack when charging the battery pack is commenced, the switch is rendered OFF when the output voltage from the switching power source is greater than the battery voltage. Charging the battery is started upon once lowering the output of the switching power source to a level lower than the battery voltage.

    摘要翻译: 直流电源单元当工具的电源开关接通时,通过适配器向电动工具提供直流电压,并且在电动工具不工作时对用作工具的替代电源的电池组进行充电。 为了防止当对开关电源电路和电池组充电时插入在开关电源电路中的开关流动的冲击电流开始,当开关电源的输出电压大于电池时,开关变为OFF 电压。 一旦将开关电源的输出降低到低于电池电压的电平,就开始对电池充电。

    DC power source unit with battery charging function
    3.
    发明授权
    DC power source unit with battery charging function 有权
    直流电源单元带电池充电功能

    公开(公告)号:US07145314B2

    公开(公告)日:2006-12-05

    申请号:US10849868

    申请日:2004-05-21

    IPC分类号: H01M10/46

    摘要: A DC power source unit supplies a DC voltage to a power tool through an adapter when a power switch of the tool is turned ON and also charges a battery pack used as an alternative power source of the tool when the power tool is not operated. A minimum battery temperature gradient amongst battery temperature gradients ever computed is used to determine whether the battery pack has cooling effect when forcibly cooled by a cooling fan or whether the battery pack has reached a full charge condition. When charging the battery pack is interrupted due to operation of the power tool, computing the battery temperature gradient is halted for some time or determination of the battery pack's full charge condition is not performed for some time in order to prevent the minimum battery temperature from being updated during interruption of charging of the battery pack.

    摘要翻译: 直流电源单元当工具的电源开关接通时,通过适配器向电动工具提供直流电压,并且在电动工具不工作时对用作工具的替代电源的电池组进行充电。 在计算出的电池温度梯度之间的最小电池温度梯度用于确定当被冷却风扇强制冷却时电池组是否具有冷却效果,或者电池组是否达到完全充电状态。 当由于电动工具的操作而使电池组充电中断时,计算电池温度梯度暂停一段时间,或者确定电池组的满充电条件不能进行一段时间,以防止最小电池温度 在电池组充电中断期间更新。

    Battery charger capable of accurately detecting battery temperature for full charge determination
    4.
    发明申请
    Battery charger capable of accurately detecting battery temperature for full charge determination 失效
    电池充电器能够准确检测电池温度以进行全电荷测定

    公开(公告)号:US20050017691A1

    公开(公告)日:2005-01-27

    申请号:US10892183

    申请日:2004-07-16

    CPC分类号: H02J7/0091

    摘要: A full charge condition of a battery is determined based on a battery temperature gradient computed at every sampling time based on two values of detected battery temperatures. However, the battery temperature detected when the level of a charge current is switched does not exhibit an accurate temperature of the battery due to contact resistance existing in contact portion of a battery side terminal and a charger side terminal, resulting in inaccurate detection of the full charge condition. A microcomputer corrects the battery temperatures detected after the level of the charge current is switched and the full charge determination is made through computation of the battery temperature gradient using the corrected battery temperatures.

    摘要翻译: 基于基于检测到的电池温度的两个值在每个采样时间计算的电池温度梯度来确定电池的完全充电状态。 然而,当充电电流的电平被切换时检测到的电池温度由于存在于电池侧端子和充电器侧端子的接触部分中的接触电阻而不显示电池的精确温度,导致完全不正确的检测 充电条件。 微型计算机校正在充电电流的电平切换之后检测到的电池温度,并且通过使用校正的电池温度计算电池温度梯度来进行完全充电确定。

    Battery charger capable of accurately determining fully charged condition regardless of batteries with different charge chracteristics
    5.
    发明授权
    Battery charger capable of accurately determining fully charged condition regardless of batteries with different charge chracteristics 有权
    电池充电器能够准确地确定完全充电状态,而不管具有不同电荷特性的电池

    公开(公告)号:US06420853B1

    公开(公告)日:2002-07-16

    申请号:US09963515

    申请日:2001-09-27

    IPC分类号: H02J714

    摘要: To provide a battery charger capable of fully charging both an active battery and an inactive battery, which have different charging characteristics near the peak level, a voltage across the battery is periodically sampled during charging the battery. A voltage change is obtained by subtracting a voltage that has been sampled previously from the newly sampled voltage. Determination of the fully charged condition of the battery is made when a voltage change falls below a critical value (S1, S2) after identifying that the battery being charged is an active or inactive battery using another critical values (K1, K2 or K1′, K2′). The critical values S1 and S2 and another critical values K1 and K2 (or K1′ and K2′) are selectively referred to depending to the battery voltage change.

    摘要翻译: 为了提供能够在峰值电平附近具有不同充电特性的有源电池和不活动电池完全充电的电池充电器,在对电池充电期间周期性地采样电池两端的电压。 通过从新采样的电压中减去先前已经采样的电压来获得电压变化。 在识别到正在充电的电池是使用另一临界值(K1,K2或K1'的有功或不活动电池)之后,当电压变化低于临界值(S1,S2)时,确定电池的完全充电状态, K2')。 关键值S1和S2以及另一个临界值K1和K2(或K1'和K2')根据电池电压变化而被选择性地参考。

    DC power source unit with battery charging function
    6.
    发明申请
    DC power source unit with battery charging function 有权
    直流电源单元带电池充电功能

    公开(公告)号:US20050013144A1

    公开(公告)日:2005-01-20

    申请号:US10892185

    申请日:2004-07-16

    CPC分类号: H02J7/022 H02J7/0031

    摘要: A DC power source unit supplies a DC voltage to a power tool through an adapter when a power switch of the tool is turned ON and also charges a battery pack used as an alternative power source of the tool when the power tool is not operated. In order to prevent a rush current from flow in a switch interposed between a switching power source circuit and the battery pack when charging the battery pack is commenced, the switch is rendered OFF when the output voltage from the switching power source is greater than the battery voltage. Charging the battery is started upon once lowering the output of the switching power source to a level lower than the battery voltage.

    摘要翻译: 直流电源单元当工具的电源开关接通时,通过适配器向电动工具提供直流电压,并且在电动工具不工作时对用作工具的替代电源的电池组进行充电。 为了防止在开关电源电路和电池组之间插入的开关中的冲击电流从开关电源充电时开始流动,当开关电源的输出电压大于电池时,开关断开 电压。 一旦将开关电源的输出降低到低于电池电压的电平,就开始对电池充电。

    Battery charging operation and a detection of a fully charged condition
of the charged battery
    8.
    发明授权
    Battery charging operation and a detection of a fully charged condition of the charged battery 失效
    电池充电操作和充电电池充满状态的检测

    公开(公告)号:US05998970A

    公开(公告)日:1999-12-07

    申请号:US106306

    申请日:1998-06-29

    CPC分类号: G01R19/16542 H02J7/0081

    摘要: A microcomputer performs a total of 100 sampling actions during a 1 sec sampling period for obtaining a plurality of battery voltage data V. In each sampling period, a minimum value .upsilon.min and a maximum value .upsilon.max are stored in a RAM 53. A peak value VMAX, used for detecting a peak battery voltage in the charging operation, is renewed by a largest data among the sampled minimum values .upsilon.min. A differenc .DELTA.V between the peak value VMAX and the maximum value .upsilon.max is calculated the end of each sampling period. And, when the calculated difference .DELTA.V exceeds a predetermined value, a judgement is made that the battery is fully charged.

    摘要翻译: 在1秒采样周期内,微计算机执行100次采样动作,以获得多个电池电压数据V.在每个采样周期中,最小值upminon和最大值up max max被存储在RAM 53中。峰值 用于检测充电操作中的峰值电池电压的值VMAX由采样的最小值upminon中的最大数据更新。 在每个采样周期结束时计算峰值VMAX和最大值upsilon max之间的不同DELTA V。 并且,当计算出的差值DELTA V超过预定值时,判断电池是充满电的。

    Miter saw for displaying angle of cutter blade cutting workpiece
    9.
    发明申请
    Miter saw for displaying angle of cutter blade cutting workpiece 有权
    斜切锯用于显示刀片切割工件的角度

    公开(公告)号:US20050076760A1

    公开(公告)日:2005-04-14

    申请号:US10960719

    申请日:2004-10-08

    IPC分类号: B23D45/04 B23D59/00 G06F19/00

    摘要: A miter saw for displaying angle of a cutter blade cutting the workpiece. The miter saw has a base mounting a workpiece thereon, a movable member movably supported to the base, and a cutting unit connected to the movable member for supporting the cutter blade. A positioning portion is associated with the movable member and provides a predetermined nominal position of the movable member with respect to the base. The predetermined nominal position includes a reference position and other positions labeled angle. A detector detects the position of the movable member with respect to the base. A processor sets an angle between the reference position and the predetermined nominal position as a displayed moving amount when the movable member is positioned at the predetermined nominal position. Otherwise, the processor computes the moving amount based on the output signal from the detector.

    摘要翻译: 用于显示刀片切割工件的角度的斜切锯。 斜切锯具有将工件安装在其上的基座,可移动地支撑在基座上的可动构件,以及连接到用于支撑切割刀片的可动构件的切割单元。 定位部分与可移动部件相关联并且提供可移动部件相对于基部的预定标称位置。 预定的标称位置包括参考位置和标记为角度的其他位置。 检测器检测可动构件相对于基座的位置。 当可移动部件位于预定的标称位置时,处理器将参考位置和预定的标称位置之间的角度设置为显示的移动量。 否则,处理器基于来自检测器的输出信号来计算移动量。

    Battery charger determining charging conditions depending upon whether a cooling device is provided
    10.
    发明授权
    Battery charger determining charging conditions depending upon whether a cooling device is provided 有权
    电池充电器根据是否提供冷却装置确定充电条件

    公开(公告)号:US06204639B1

    公开(公告)日:2001-03-20

    申请号:US09514184

    申请日:2000-02-28

    IPC分类号: H01M1046

    CPC分类号: H02J7/0003 H02J7/0091

    摘要: To provide inexpensive and economic battery chargers with excellent productivity, a control circuit board for the battery charger is produced so as to be usable in common for both the battery chargers with a cooling device and the battery chargers without a cooling device. In the control circuit board, a cooling device detection circuit is provided for detecting whether or not the cooling device is provided. An average charge current to be applied to a battery pack to be charged is controlled depending on whether or not the cooling device is provided. The average charge current is further controlled depending on the type of the battery pack, i.e., whether it is of a small rated capacity or of a large rated capacity, and on a rate of change in battery temperature at the time of start of charging.

    摘要翻译: 为了以优异的生产率提供廉价和经济的电池充电器,制造了用于电池充电器的控制电路板,以便对具有冷却装置的电池充电器和没有冷却装置的电池充电器都可以共同使用。 在控制电路板中,设置有用于检测冷却装置是否被提供的冷却装置检测电路。 根据是否设置冷却装置来控制要施加到要充电的电池组的平均充电电流。 平均充电电流根据电池组的类型,即其是否具有小的额定容量或大的额定容量以及充电开始时的电池温度的变化率进一步控制。