Power conversion device
AssigneeMitsubishi Electric Corporation
InventorsAtsuki WATAI, Yukio NAKASHIMA, Hiroyuki USHIFUSA
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Abstract
A power conversion device includes power units, blowers to generate airflows passing through the power units, and a housing that accommodates the power units and the blowers. The power conversion device further includes thermally conductive bases, and coolers thermally coupled to the respective bases and disposed outside the housing at positions on both sides of the housing in a horizontal direction. The power units each include capacitors arranged with a void therebetween in a direction away from a main surface of the corresponding base.
Claims21
A power conversion device, comprising:
- power units each including
- capacitors connected in series, and
- a power conversion circuit including primary terminals between which the capacitors are connected, the power conversion circuit being configured to convert DC power fed via the capacitors into electric power to be fed to a load device;
- blowers provided for the respective power units to generate airflows passing through the corresponding power units;
- a housing configured to accommodate the power units and the blowers;
- bases having thermal conductivity and to which the respective power units are provided;
- and
- coolers thermally coupled to the respective bases and disposed outside the housing at positions on both sides of the housing in a horizontal direction, wherein
- the capacitors included in each of the power units are arranged with a void therebetween.
4-15. (canceled)
Dependencies are inferred from the claim text.