发明名称 SERVO CONTROL SYSTEM AND WORK MACHINE
摘要 <P>PROBLEM TO BE SOLVED: To provide a servo control system and a work machine that effectively suppress the rise of temperature in a CPU integrated in a control unit having a hermetically sealed structure. <P>SOLUTION: A servo control system 1 includes multiple driver units each of which includes an inverter circuit to drive an AC motor by converting the DC power to the AC power, and a control unit 600 that controls the inverter circuits of the multiple driver units. The control unit 600 includes a housing 601 having a hermetically sealed structure, multiple CPUs 605a to 605e provided for each of the multiple driver units in the housing 601 for controlling the inverter circuits of the driver units, and a cooling pipe 608 that is thermally connected with the CPUs 605a to 605e for cooling the CPUs 605a to 605e by introducing a cooling liquid from outside of the housing 601. <P>COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010187526(A) 申请公布日期 2010.08.26
申请号 JP20090281814 申请日期 2009.12.11
申请人 SUMITOMO HEAVY IND LTD 发明人 YUASA HIDEAKI
分类号 H02M7/48;B66F9/24;H01L23/473;H02P27/06;H05K7/20 主分类号 H02M7/48
代理机构 代理人
主权项
地址