发明名称 ELECTRICALLY-OPERATED CONSTRUCTION MACHINE
摘要 An electrically-operated construction machine with a battery charging operation. A lock switch provides a closed contact when a lock lever in a cab is placed in an unlock position. A feed port is disposed outside the cab to accept a cable from a commercial power source. The feed port is provided with a charge start switch . A control device has a motor control function for driving an electric motor with electrical power of a main battery when a signal is input from the lock switch. A charge control function is for charging the main battery with electrical power of the commercial power source when dictated by the charge start switch. The lock switch is wire-connected so as not to output the signal to the control device even if the closed contact is provided by the lock switch when the control device exercises charge control.
申请公布号 US2013197766(A1) 申请公布日期 2013.08.01
申请号 US201113703675 申请日期 2011.10.19
申请人 KURIKUMA HAJIME;NASU KATSUYOSHI;TAKISHITA TATSUO;TAKAGI WATARU;HITACHI CONSTRUCTION MACHINERY CO., LTD. 发明人 KURIKUMA HAJIME;NASU KATSUYOSHI;TAKISHITA TATSUO;TAKAGI WATARU
分类号 E02F9/20 主分类号 E02F9/20
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