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    • 9. 发明申请
    • Power Conversion Device
    • 电源转换装置
    • US20130128646A1
    • 2013-05-23
    • US13811497
    • 2011-07-25
    • Atsuo NishiharaKenichiro NakajimaKeisuke Horiuchi
    • Atsuo NishiharaKenichiro NakajimaKeisuke Horiuchi
    • H05K7/20
    • H05K7/20H01L23/367H01L23/473H01L23/552H01L25/072H01L2924/0002H01L2924/1203H01L2924/13055H01L2924/13091H02M7/003H02M7/48H01L2924/00
    • A power conversion device includes: a cooling base 5 in which a flow passage 51 through which a cooling medium flows is formed and an opening portion 50 which is communicated with the flow passage 51 is formed; a power module 1; and a flow passage control portion 16b. The power module 1 has a bottomed cylindrical portion 13a in which a power semiconductor element is housed and which is inserted into the flow passage 51 through the opening portion 50, a flange portion 13b which is formed on an opening of the cylindrical portion 13a and is fixed to the cooling base 5 so as to close the opening portion 50, and a group of radiator fins 144 which are mounted on an outer peripheral surface of the cylindrical portion 13a with a gap of a predetermined distance formed between the flange portion 13b and the group of radiator fins 144. The flow passage control portion 16b is arranged in a gap formed between the flange portion 13b and the group of radiator fins 144, and introduces the cooling medium into the group of radiator fins 144 while preventing the cooling medium from flowing into gaps 51c.
    • 电力转换装置包括:冷却基座5,其中形成有冷却介质流动的流动通道51和与流动通道51连通的开口部分50; 电源模块1; 和流路控制部16b。 功率模块1具有底部的圆筒部13a,其中容纳有功率半导体元件,并且通过开口部50插入到流路51中;凸缘部13b,形成在圆筒部13a的开口上,并且是 固定在冷却基座5上,以封闭开口部分50;以及一组散热器散热片144,其安装在圆筒部分13a的外圆周表面上,具有形成在凸缘部分13b和 一组散热器散热片144.流路控制部分16b布置在形成在凸缘部分13b和一组散热片144之间的间隙中,并将冷却介质引入散热片144的一组中,同时防止冷却介质流动 进入间隙51c。