发明名称 |
Battery pack for electric power tool |
摘要 |
<p>A battery pack for an electric power tool includes a control device (40) that determines the necessity of a balancing control to reduce difference in voltages of cells (11-15) of a battery (10) based upon voltages of the respective cells (11-15) measured by a voltage measuring device (28). The control device (40) controls a subject cell (11-15), which is subject to the balancing control to discharge via the discharging device (21-25) when the balancing control is determined to be necessary. A voltage measuring device (28) measures the voltages of the respective cells (11-15) when a battery charger detecting device (56) detects the connection of the battery charger (60) in a state where the battery (10) has not been connected to the battery charger (60) 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.</p> |
申请公布号 |
EP2579383(B1) |
申请公布日期 |
2015.09.16 |
申请号 |
EP20120186804 |
申请日期 |
2012.10.01 |
申请人 |
MAKITA CORPORATION |
发明人 |
HANAI, HIROSHI;OKABAYASHI, HISAKAZU;YAMADA, TORU;NODA, MASAFUMI;ENDO, TAKAYOSHI |
分类号 |
H02J7/00;G01R31/36;H01M10/42;H01M10/48 |
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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