发明名称 |
BATTERY PACK FOR ELECTRIC POWER TOOL |
摘要 |
A battery pack for an electric power tool includes a control device that determines the necessity of a balancing control to reduce difference in voltages of cells of a battery based upon voltages of the respective cells measured by a voltage measuring device. The control device controls a subject cell, which is subject to the balancing control to discharge via the discharging device when the balancing control is determined to be necessary. A voltage measuring device measures the voltages of the respective cells when a battery charger detecting device detects the connection of the battery charger in a state where the battery has not been connected to the battery charger for a predetermined specified period of time or more and power feeding to the electric power tool has not been performed for the specified period of time or more.
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申请公布号 |
US2013082658(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
US201213628784 |
申请日期 |
2012.09.27 |
申请人 |
HANAI HIROSHI;OKABAYASHI HISAKAZU;YAMADA TORU;NODA MASAFUMI;ENDO TAKAYOSHI |
发明人 |
HANAI HIROSHI;OKABAYASHI HISAKAZU;YAMADA TORU;NODA MASAFUMI;ENDO TAKAYOSHI |
分类号 |
H02J7/00 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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