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发明公开
CN103828215A 功率转换装置 有权 转让

功率转换装置
摘要：
本发明提供一种功率转换装置，包括：逆变器（4），该逆变器（4）由直流电源系统进行供电，对作为负载的电动机（6）进行驱动；冷却片（5），该冷却片（5）对逆变器（4）进行冷却；第一铁芯（8），该第一铁芯（8）具有贯通孔，所述贯通孔使连接直流电源系统和逆变器（4）的正极侧导体（21）、及使逆变器（4）接地的负极侧导体（22）穿过；接地导体（50），该接地导体（50）对第一铁芯（8）连接至直流电源系统侧的负极侧导体（22），以将冷却片（5）进行接地；接地导体（59），该接地导体（59）对第一铁芯（8）连接至直流电源系统侧的负极侧导体（22），以将电动机磁轭（6A）经由电容器（10）以交流方式进行接地；以及接地导体（61），该接地导体（61）的一端对第一铁芯（8）连接至直流电源系统侧的负极侧导体（22）或接地导体（50），另一端接地。
摘要（英）：

A power conversion device provided with: an inverter (4) which receives power from a direct current power system, and drives a motor (6), which is a load; a fin (5) which cools the inverter (4); a first core (8) having a through-hole which enables a cathode side conductor (21), connecting the direct current power system and the inverter (4), and an anode side conductor (22), connecting the inverter (4) to the ground, to pass there-through; a ground-contact conductor (50) which is connected to the anode side conductor (22) on the direct current power system-side, relative to the first core (8), and connects the fin (5) to the ground; another ground-contact conductor (59) which is connected to the anode side conductor (22) on the direct current power system-side, relative to the first core (8), and which AC-connects a motor yoke (6A), via a capacitor, to the ground; and yet another ground-contact conductor (61), of which one end is connected to the first ground-contact conductor (50) or to the anode side conductor (22) on the direct current power system-side, relative to the first core (8), and the other end is connected to the ground.

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