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    • 6. 发明公开
    • HEAT SINK FOR POWER MODULE
    • KÜHLKÖRPERFÜREIN LEISTUNGSMODUL
    • EP1898464A4
    • 2009-09-02
    • EP06767404
    • 2006-06-27
    • TOYOTA JIDOSHOKKI KKSHOWA DENKO KK
    • KUBO HIDEHITOKIMBARA MASAHIKOTOH KEIJIOTOSHI KOTAKONO EIJITANAKA KATSUFUMIWAKABAYASHI NOBUHIRONAKAGAWA SHINTAROFURUKAWA YUICHIYAMAUCHI SHINOBU
    • H01L23/36H01L23/367H05K7/20
    • H05K7/20263F28F3/027H01L23/3672H01L23/473H01L2924/0002H01L2924/00
    • A heat sink (1) for a power module can be mounted with a power device (101) at least on one plane. The heat sink (1) is provided with a cooling medium flow path (1d) wherein a cooling medium communicates to dissipate heat from the power device (101), and a corrugated fin (1a) arranged in the cooling medium flow path (1d). The corrugated fin (1a) is provided with ridges (21b) and furrows (21c) extending in a communication direction of the cooling medium, and side walls (21a) connecting the adjacent ridges (21b) and the furrows (21c). A fin section (21) is composed of the two adjacent side walls (21a), and the ridge (21b) or the furrow (21c) positioned between the both side walls (21a). Each side wall (21a) is provided with a louver (31) which at least operates to turn the cooling medium communicating inside a corresponding fin section (21). Heat dissipating performance can be further improved by the heat sink (1).
    • 用于功率模块的散热器(1)能够将功率器件(101)安装在散热器的至少一个表面上。 散热器包括散发由动力装置(101)产生的热量的冷却介质流动的制冷剂通路(1d)和布置在制冷剂通路(1d)中的波纹状散热片体(1a)。 波纹状散热片体(1a)具有沿着冷却介质的流动方向延伸的波峰(21b)和槽(21c),以及各个顶部(21b)与相邻的顶部 一个槽(21c)。 布置在相邻的侧壁(21a)之间的每个相邻的一对侧壁(21a)和相应的一个峰(21b)或相应的一个槽(21c)形成翅片(21)。 每个侧壁(21a)具有百叶窗(31),该百叶窗(31)至少使在相关的翅片(21)中流动的冷却介质旋转。 因此,散热器(1)具有进一步改善的散热性能。