POWER INVERTER
    1.
    发明公开
    POWER INVERTER 审中-公开

    公开(公告)号:EP3634096A1

    公开(公告)日:2020-04-08

    申请号:EP18198224.0

    申请日:2018-10-02

    IPC分类号: H05K7/20 H01L23/40

    摘要: The invention relates to a power inverter (10) for an electrical machine (80). The power inverter (10) comprises a housing (20) having a central longitudinal axis (30) and a heat sink (210). A plurality of power semiconductors (41) are arranged in the housing (20), and cooperate with a coupling surface (210a) of the heat sink (210) in a thermally conductive manner.
    According to the invention, the coupling surface (210a) of the heat sink (210) extends perpendicularly to a power circuit board (40) which carries the power semiconductors (41). The power inverter (10) further incorporates a preloading arrangement (60) having at least one resilient element (630) and one force-applying element (610), wherein the at least one resilient element (630) is preloaded between at least one of the power semiconductors (41) and the force-applying element (610), and compresses at least one of the power semiconductors (41) against the coupling surface (210a) of the heat sink (210).
    The invention further relates to an electrical machine (80) having said power inverter (10).

    CONTROL DEVICE FOR AN ELECTRIC MACHINE
    2.
    发明公开

    公开(公告)号:EP4164349A1

    公开(公告)日:2023-04-12

    申请号:EP21201231.4

    申请日:2021-10-06

    IPC分类号: H05K7/20 H02K11/33

    摘要: The invention relates to a control device (1) for an electrical machine. The control device (1) comprises a housing (2) partially surrounding a housing interior (3). The housing (2) comprises a lower housing part (4) made of metal, preferably of aluminum, and with an upper housing part (5) made of plastic. A printed circuit board (6) is arranged in the housing interior (3) between the housing lower part (4) and the housing upper part (5), on whose upper side (7) facing the housing upper part (5) at least one electrical/electronic power transistor (8) for supplying the electrical machine with electrical energy is arranged, which generates waste heat during operation. According to the invention, a biasing element (10) is arranged between the at least one power transistor (8) and the upper housing part (5), which biases the power transistor (8) against the lower housing part (4) to form a thermal contact.

    POWER INVERTER
    3.
    发明公开
    POWER INVERTER 审中-公开

    公开(公告)号:EP3634095A1

    公开(公告)日:2020-04-08

    申请号:EP18198223.2

    申请日:2018-10-02

    IPC分类号: H05K7/20 H01L23/40

    摘要: The invention relates to a power inverter (10) for an electrical machine (80). The power inverter (10) comprises a power circuit board (40) with a plurality of power semiconductors (41) and a housing (20) with a housing wall (21), which extends around a central longitudinal axis (30) of the housing (20). The power circuit board (40) is fitted in the housing (20) perpendicularly to the central longitudinal axis (30).
    According to the invention, the power semiconductors (41) are arranged in an edge region (43) of the power circuit board (40), and are oriented perpendicularly to the latter and in parallel with the central longitudinal axis (30). The power inverter (10) further incorporates a preloading arrangement (60) having at least one resilient clamp (63) and a clamping plate (61) in parallel with the power circuit board (40), wherein the respective resilient clamp (63) is pre-loaded between the respective power semiconductors (41) and the clamping plate (61), and compresses the respective power semiconductors (41) against an inner surface (21a) of the housing wall (21).
    The invention further relates to an electrical machine (80) having said power inverter (10).