POWER MODULE AND POWER CONVERTER

To provide a power module capable of suppressing enlargement.SOLUTION: A power module comprises: a main terminal part having a first conductor with one end having a P-terminal, and a second conductor with one end having an N-terminal, connected to a capacitor together with the first conductor, and i...

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1. Verfasser: EZUMI MASAHIKO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a power module capable of suppressing enlargement.SOLUTION: A power module comprises: a main terminal part having a first conductor with one end having a P-terminal, and a second conductor with one end having an N-terminal, connected to a capacitor together with the first conductor, and installed in parallel with the first conductor via a gap; a circuit board having a power semiconductor element that converts a DC voltage from the main terminal part to an AC voltage; an output terminal part for outputting the AC voltage from the power semiconductor element; a pair of fastening parts each connecting the P-terminal and a positive electrode side terminal of the capacitor, and, the N-terminal and a negative electrode side terminal of the capacitor to each other; a base plate to which the circuit board is fixed; a case fixed to a surface of the base plate, and having an accommodation space that accommodates the P-terminal, the N-terminal, and the pair of fastening parts; and a first insulation part arranged in the accommodation space, and covering a first main surface of the P-terminal, a second main surface of the N-terminal, and the pair of fastening parts from a side opposite to the base plate in an embedded state of the gap.SELECTED DRAWING: Figure 3 【課題】大型化を抑制することができるパワーモジュールを提供する。【解決手段】P端子を一端に有する第一導体と、N端子を一端に有し、第一導体とともにコンデンサに接続され、第一導体とギャップを介して並設された第二導体と、を有する主端子部と、主端子部からの直流電圧を交流電圧に変換するパワー半導体素子を有する回路基板と、パワー半導体素子からの交流電圧を出力する出力端子部と、P端子及びコンデンサの正極側端子、並びに、N端子及びコンデンサの負極側端子を互いに接続する一対の締結部と、回路基板が固定されたベースプレートと、ベースプレートの表面に固定され、P端子、N端子、及び一対の締結部を収容する収容空間を有するケースと、収容空間内に配置され、ギャップを埋めた状態で、P端子の第一主面、N端子の第二主面、及び一対の締結部をベースプレートとは反対側から覆う第一絶縁部と、を備えるパワーモジュール。【選択図】図3