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公开(公告)号：EP2090146A1
公开(公告)日：2009-08-19
申请号：EP07846409.6
申请日：2007-12-10
申请人： Danfoss Drives A/S
发明人： ZHENG, Li
IPC分类号： H05K7/20 , H01L23/467 , H02M7/00
CPC分类号： H05K7/20918 , H01L23/467 , H01L2924/0002 , H01L2924/00
摘要： The present invention provides an electronic device, comprising: a circuit board having at least one first heat-generating element and at least one second heat-generating element mounted thereon; a heat sink connected to said at least one first heat-generating element; a fan facing said heat sink; and an airflow guiding member placed between said fan and said heat sink for guiding the cooling air from said fan to said heat sink and said at least one second heat-generating element respectively. Said electronic device may further comprise a separating member for separating a main body of said at least one second heat-generating element from said circuit board, so as to prevent the cooling air guided to said at least one second heat-generating element from flowing to said circuit board; a bracket for separating said at least one first heat-generating element from other elements on said circuit board, so as to thermally insulate between them; and a flow-guiding gate guiding the airflow from said fan, and dispensing more airflow flow through the region on the heat sink corresponding to at least one first heat-generating element.
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公开(公告)号：EP2089962B1
公开(公告)日：2011-01-26
申请号：EP07846412.0
申请日：2007-12-10
申请人： Danfoss Drives A/S
CPC分类号： H02M7/003 , H05K7/20918
摘要： The present invention provides a frequency converter for driving a motor, comprising: a circuit board, having at least one first heat-generating element mounted thereon; a heat sink, connected to the at least one first heat-generating element; a fan, facing the heat sink; and a bracket, for positioning the at least one heat-generating element relative to the heat sink and the circuit board. The frequency converter further comprises: a separating member for separating the at least one portion of the main body of the at least one second heat-generating element from the circuit board, so as to prevent the cooling air guided to the at least one second heat-generating element from flowing to the circuit board; an airflow guiding member placed between the fan and the heat sink, for guiding the cooling air flowed from the fan to the heat sink and the at least one second heat-generating element respectively; and a flow guiding gate guiding the airflow from the fan to the heat sink, and dispensing more airflow to flow through the region corresponding to the at least one first heat-generating element.
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公开(公告)号：EP2090146B1
公开(公告)日：2014-07-09
申请号：EP07846409.6
申请日：2007-12-10
申请人： Danfoss Drives A/S
发明人： ZHENG, Li
IPC分类号： H05K7/20 , H01L23/467 , H02M7/00
CPC分类号： H05K7/20918 , H01L23/467 , H01L2924/0002 , H01L2924/00
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公开(公告)号：EP2089962A1
公开(公告)日：2009-08-19
申请号：EP07846412.0
申请日：2007-12-10
申请人： Danfoss Drives A/S
CPC分类号： H02M7/003 , H05K7/20918
摘要： The present invention provides a frequency converter for driving a motor, comprising: a circuit board, having at least one first heat-generating element mounted thereon; a heat sink, connected to the at least one first heat-generating element; a fan, facing the heat sink; and a bracket, for positioning the at least one heat-generating element relative to the heat sink and the circuit board. The frequency converter further comprises: a separating member for separating the at least one portion of the main body of the at least one second heat-generating element from the circuit board, so as to prevent the cooling air guided to the at least one second heat-generating element from flowing to the circuit board; an airflow guiding member placed between the fan and the heat sink, for guiding the cooling air flowed from the fan to the heat sink and the at least one second heat-generating element respectively; and a flow guiding gate guiding the airflow from the fan to the heat sink, and dispensing more airflow to flow through the region corresponding to the at least one first heat-generating element.
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