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公开(公告)号：US20210075243A1
公开(公告)日：2021-03-11
申请号：US17011347
申请日：2020-09-03
Applicant: MAKITA CORPORATION
Inventor： Hiroki UESUGI
Abstract: A battery pack in one aspect of the present disclosure includes a first cell, a memory device, a target current calculator, and an information notifier. The memory device stores a maximum variation of a charging current value. The maximum variation is determined depending on a characteristic of the battery pack. The target current calculator calculates a newest value of a target current value based on (i) a previous value of the target current value and (ii) the maximum variation. The information notifier transmits a charge condition information including the newest value.
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公开(公告)号：US20220359921A9
公开(公告)日：2022-11-10
申请号：US17297279
申请日：2019-11-07
Applicant: MAKITA CORPORATION
Inventor： Kohei NAKATANI , Kazuya TANAKA , Hiroki UESUGI
IPC: H01M10/48 , H01M10/613 , H01M10/643 , H01M50/213 , H01M10/6235 , H01M50/247 , H01M10/42
Abstract: A battery pack contains a plurality of battery cells that includes a first battery cell and a second battery cell; a first thermistor disposed closest to the first battery cell among the battery cells; a second thermistor disposed closest to the second battery cell among the battery cells. A case of the battery pack holds the battery cells, the first thermistor, and the second thermistor. The first battery cell is disposed such that at least one of the other battery cells is interposed between the first battery cell and a wall surface of the case in a direction orthogonal to a longitudinal direction of the first battery cell. The second battery cell is disposed such that none of the other battery cells is interposed between the second battery cell and the wall surface of the case in a direction orthogonal to a longitudinal direction of the second battery cell.
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公开(公告)号：US20160359350A1
公开(公告)日：2016-12-08
申请号：US15175509
申请日：2016-06-07
Applicant: MAKITA CORPORATION
Inventor： Hiroki UESUGI
IPC: H02J7/00
CPC classification number: H02J7/0044 , G08B5/38 , G08B7/06 , G08B19/005 , H02J3/02 , H02J7/0004 , H02J7/0021 , H02J7/0026 , H02J7/0052 , H02J7/007 , H02J7/0086 , H02J7/0091 , H02J7/045 , H02J7/047 , H02J9/061
Abstract: A battery charger in one aspect of the present disclosure includes an attachment portion, a charging circuit, a positive electrode terminal, a negative electrode terminal, at least one signal input terminal, an analog value acquisition device, a charging current detector, a comparison processor, and a current value reflection processor. The current value reflection processor performs one of a variable determination process for reference values and an analog value correction process. The variable determination process is a process for the current value reflection processor to variably determine the reference value based on a value of a charging current detected by the charging current detector. The analog value correction process is a process for the current value reflection processor to correct an analog value to be used in a comparison by the comparison processor based on the value of the charging current detected by the charging current detector.
Abstract translation: 本公开的一个方面的电池充电器包括附接部分，充电电路，正极端子，负极端子，至少一个信号输入端子，模拟值获取装置，充电电流检测器，比较处理器 ，以及电流值反射处理器。 当前值反射处理器执行参考值的可变确定处理和模拟值校正处理之一。 可变确定处理是当前值反射处理器基于由充电电流检测器检测到的充电电流的值来可变地确定参考值的处理。 模拟值校正处理是当前值反射处理器基于由充电电流检测器检测到的充电电流的值来校正要在比较处理器的比较中使用的模拟值的处理。
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4.发明申请公开(公告)号：US20150200535A1
公开(公告)日：2015-07-16
申请号：US14596600
申请日：2015-01-14
Applicant: MAKITA CORPORATION
Inventor： Hiroki UESUGI , Takuya UMEMURA , Takayoshi ENDO , Masafumi NODA
CPC classification number: H02H7/18 , H02H3/044 , H02H3/05 , H02J7/0031 , H02J7/0063 , H02J2007/004
Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.
Abstract translation: 本公开的实施例的一个方面中的电驱动加工装置包括：电池; 异常检测单元; 电源路径; 第一断开单元; 第二断开单元; 和控制单元。 如果由异常检测单元检测到电池的过载或过度放电，则控制单元激活第一断开单元以断开电源路径，并且随后在激活第一断开单元之后确定来自电池的放电是否停止 并且如果来自电池的放电没有停止，则启动第二断开单元以断开电源路径。
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公开(公告)号：US20150153416A1
公开(公告)日：2015-06-04
申请号：US14556698
申请日：2014-12-01
Applicant: MAKITA CORPORATION
Inventor： Takuya UMEMURA , Tadahiko KOBAYAKAWA , Hiroki UESUGI , Hiroshi HANAI
CPC classification number: G01R31/3606 , H01M10/0525 , H01M10/443 , H01M10/48 , H01M10/486 , H02J7/0031 , H02J7/0052 , H02J7/007 , H02J7/008 , H02J7/0091
Abstract: A charge control device includes a voltage detector that detects a voltage of a battery, a temperature detector that detects a battery temperature, a voltage setting unit that sets at least one of a charge completion voltage and an abnormality determination voltage to a high temperature time voltage that is lower than a normal voltage when the battery temperature detected by the temperature detector is or is above a high temperature determination threshold set in advance, and a charging current limiting unit that reduces a charging current a charger supplies to the battery when the battery temperature is in a temperature range between a set temperature that is lower by a predetermined temperature than the high temperature determination threshold and the high temperature determination threshold and the battery voltage detected by the voltage detector is in a voltage range between the normal voltage and the high temperature time voltage.
Abstract translation: 充电控制装置包括检测电池的电压的电压检测器，检测电池温度的温度检测器，将充电完成电压和异常判定电压中的至少一个设定为高温时间电压的电压设定单元 当由温度检测器检测到的电池温度高于或超过预先设定的高温判定阈值时，该温度低于正常电压;以及充电电流限制单元，当电池温度 处于比所述高温判定阈值低预定温度的设定温度和所述高温判定阈值之间的温度范围内，并且所述电压检测器检测出的电池电压处于所述正常电压与所述高温 时间电压。
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Patent Agency Ranking
公开(公告)号：US20240106012A1
公开(公告)日：2024-03-28
申请号：US18529529
申请日：2023-12-05
Applicant: MAKITA CORPORATION
Inventor： Tadahiko KOBAYAKAWA , Hiroki UESUGI , Hayato KANO
IPC: H01M10/42 , G01R31/3828 , H01M10/44 , H01M10/48
CPC classification number: H01M10/425 , G01R31/3828 , H01M10/44 , H01M10/486 , H01M2010/4278
Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.
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公开(公告)号：US20220029214A1
公开(公告)日：2022-01-27
申请号：US17297279
申请日：2019-11-07
Applicant: MAKITA CORPORATION
Inventor： Kohei NAKATANI , Kazuya TANAKA , Hiroki UESUGI
IPC: H01M10/48 , H01M10/613 , H01M10/643 , H01M50/213 , H01M10/6235 , H01M50/247 , H01M10/42
Abstract: A battery pack contains a plurality of battery cells that includes a first battery cell and a second battery cell; a first thermistor disposed closest to the first battery cell among the battery cells; a second thermistor disposed closest to the second battery cell among the battery cells. A case of the battery pack holds the battery cells, the first thermistor, and the second thermistor. The first battery cell is disposed such that at least one of the other battery cells is interposed between the first battery cell and a wall surface of the case in a direction orthogonal to a longitudinal direction of the first battery cell. The second battery cell is disposed such that none of the other battery cells is interposed between the second battery cell and the wall surface of the case in a direction orthogonal to a longitudinal direction of the second battery cell.
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公开(公告)号：US20210098832A1
公开(公告)日：2021-04-01
申请号：US17022193
申请日：2020-09-16
Applicant: MAKITA CORPORATION
Inventor： Tadahiko KOBAYAKAWA , Hiroki UESUGI , Hayato KANO
IPC: H01M10/42 , H01M10/44 , G01R31/3828 , H01M10/48
Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.
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9.发明申请公开(公告)号：US20190074683A1
公开(公告)日：2019-03-07
申请号：US16181449
申请日：2018-11-06
Applicant: MAKITA CORPORATION
Inventor： Hiroki UESUGI , Takuya UMEMURA , Takayoshi ENDO , Masafumi NODA
Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.
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公开(公告)号：US20160359345A1
公开(公告)日：2016-12-08
申请号：US15170367
申请日：2016-06-01
Applicant: MAKITA CORPORATION
Inventor： Hiroki UESUGI
IPC: H02J7/00
CPC classification number: H02J7/0026 , H01M10/443 , H01M10/486 , H02J7/0008 , H02J7/0013 , H02J7/007 , H02J7/0091 , H02J7/045 , H02J7/047
Abstract: A battery-charge control device comprises an attachment-detecting unit, a temperature-obtaining unit, a voltage-obtaining unit, a threshold-value-determining unit, a determination unit, and a completion-processing unit. The threshold-value-determining unit determines, based on a battery temperature obtained by the temperature-obtaining unit, a completion-threshold-value corresponding to the battery temperature for determining necessity of charging when the attachment-detecting unit detects that the battery pack is attached to the battery charger. The determination unit performs a determination of whether a voltage obtained by the voltage-obtaining unit is equal to or greater than the completion-threshold-value determined by the threshold-value-determining unit when the attachment-detecting unit detects that the battery pack is attached to the battery charger. The completion-processing unit performs a specified battery-charge completion processing indicating unnecessity of charging of the battery by the battery charger when the determination unit determines that the obtained voltage is equal to or greater than the completion-threshold-value.
Abstract translation: 电池充电控制装置包括附件检测单元，温度获取单元，电压获取单元，阈值确定单元，确定单元和完成处理单元。 阈值确定单元基于由温度获取单元获得的电池温度，确定当安装检测单元检测到电池组是否为电池温度时确定充电必要性的电池温度的完成阈值 连接到电池充电器。 确定单元执行确定电压获取单元获得的电压是否等于或大于由阈值确定单元确定的完成阈值时，当附件检测单元检测到电池组是 连接到电池充电器。 当确定单元确定所获得的电压等于或大于完成阈值时，完成处理单元执行指示电池充电器对电池的充电不充足的指定的电池充电完成处理。
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