公开(公告)号：US09778321B2

公开(公告)日：2017-10-03

申请号：US14556698

申请日：2014-12-01

Applicant: MAKITA CORPORATION

Inventor： Takuya Umemura ,  Tadahiko Kobayakawa ,  Hiroki Uesugi ,  Hiroshi Hanai

IPC: H02J7/00 ,  H02J7/04 ,  H02J7/16 ,  G01R31/36 ,  H01M10/44 ,  H01M10/48 ,  H01M10/0525

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.

公开(公告)号：US09356464B2

公开(公告)日：2016-05-31

申请号：US14191744

申请日：2014-02-27

Applicant: MAKITA CORPORATION

Inventor： Miki Tomiyasu ,  Tadahiko Kobayakawa ,  Hiroshi Hanai

IPC: H02J7/04 ,  H02J7/16 ,  H02J7/00

CPC classification number: H02J7/0091 ,  H02J2007/0049

Abstract: A battery pack includes: a connecting portion connected to a battery charger; a battery chargeable by the battery charger connected to the connecting portion; an environment temperature detecting element detecting an environment temperature around the battery; and a control circuit. The control circuit periodically detects the environment temperature via the environment temperature detecting element and controls the battery charger to suspend starting of charging the battery or to temporarily discontinue charging the battery when a variation of the environment temperature detected exceeds a predetermined range, when the battery charger is connected to the connecting portion.

Abstract translation: 电池组包括：连接到电池充电器的连接部分; 由连接到连接部分的电池充电器充电的电池; 检测电池周围环境温度的环境温度检测元件; 和控制电路。 控制电路通过环境温度检测元件周期性地检测环境温度，并且当检测到的环境温度的变化超过预定范围时，控制电池充电器暂停对电池充电的开始或暂时中断对电池的充电，当电池充电器 连接到连接部分。