公开(公告)号：US09730311B2

公开(公告)日：2017-08-08

申请号：US14443896

申请日：2013-10-25

申请人： MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

发明人： Gento Ichikawa ,  Takayuki Hagita ,  Akinori Yoshioka ,  Hiroyuki Kamitani ,  Koji Nakano ,  Masayuki Ishikawa ,  Masanori Takahashi ,  Kenji Aoyagi ,  Masato Ito

IPC分类号： H05K7/20 ,  H02K11/00 ,  H05K1/02 ,  H02K5/22 ,  F04C18/02 ,  F04C29/04 ,  F04B39/06 ,  H02K11/33 ,  F04B27/10 ,  F04B35/04 ,  H02K9/22

CPC分类号： H05K1/0203 ,  F04B27/10 ,  F04B35/04 ,  F04B39/06 ,  F04C18/0215 ,  F04C29/047 ,  F04C2240/808 ,  H02K5/225 ,  H02K9/22 ,  H02K11/33

摘要： An electric compressor includes a motor, a scroll compression mechanism, a housing, a circuit unit, a circuit housing housing the circuit unit and integrated with the housing. The electric compressor includes a heat sink provided on a circuit unit side of a partition wall so as to project to be brought into contact with a semiconductor element of a power substrate, facing the partition wall that erects along a vertical direction to separate the inside of the housing from the circuit housing. The heat sink has a lower surface and an upper surface formed into a cylindrical shape so that width of an upper end portion and a lower end portion of the heat sink gradually decreases to reach a tip portion.