Power conversion device and capacitor device

A capacitor device comprising:

• capacitor elements each having a first electrode and a second electrode on end faces separated in a width direction, the capacitor elements being arranged in an alignment direction different from the width direction;
• a high-potential busbar connected to the first electrode;
• and
• a low-potential busbar connected to the second electrode, wherein
• the high-potential busbar and the low-potential busbar are provided at positions overlapping the capacitor elements in a plate thickness direction different from the alignment direction and the width direction,
• the high-potential busbar has a first high-potential portion and a second high-potential portion,
• the low-potential busbar has a first low-potential portion and a second low-potential portion,
• the first high-potential portion is provided farther from the capacitor elements than the first low-potential portion in the plate thickness direction, and
• the second low-potential portion is provided farther from the capacitor elements than the second high-potential portion in the plate thickness direction.

A power conversion device comprising:

• a capacitor device provided between an electrical component and a switch module, wherein
• the capacitor device includes:
• a capacitor element having a first electrode and a second electrode separated in a width direction;
• a high-potential busbar electrically connecting the first electrode, the electrical component, and the switch module;
• and
• a low-potential busbar electrically connecting the second electrode, the electrical component, and the switch module, wherein
• the high-potential busbar and the low-potential busbar are provided at positions overlapping the capacitor element in a plate thickness direction different from the width direction,
• the high-potential busbar has a first high-potential portion and a second high-potential portion,
• the low-potential busbar has a first low-potential portion and a second low-potential portion,
• the first high-potential portion is provided farther from the capacitor element than the first low-potential portion in the plate thickness direction, and
• the second low-potential portion is provided farther from the capacitor element than the second high-potential portion in the plate thickness direction.

A capacitor device comprising:

• a capacitor element having a first electrode and a second electrode on end faces separated in a width direction;
• a high-potential busbar connected to the first electrode;
• and
• a low-potential busbar connected to the second electrode, wherein
• the high-potential busbar and the low-potential busbar are provided at positions overlapping the capacitor element in a plate thickness direction different from the width direction,
• the high-potential busbar has a first high-potential portion and a second high-potential portion,
• the low-potential busbar has a first low-potential portion and a second low-potential portion,
• the first high-potential portion is provided farther from the capacitor element than the first low-potential portion in the plate thickness direction, and
• the second low-potential portion is provided farther from the capacitor element than the second high-potential portion in the plate thickness direction.