Electric power conversion device

An electric power conversion device comprising:

• a semiconductor element section having an upper arm element and a lower arm element;
• a capacitor;
• an element-side first electrode conductor electrically connected to one of the upper arm element and the lower arm element and extending toward one side in a first direction;
• an element-side second electrode conductor electrically connected to the other one of the upper arm element and the lower arm element and extending toward the one side in the first direction;
• a capacitor-side first electrode conductor electrically connected to the capacitor and extending toward other side in the first direction;
• and
• a capacitor-side second electrode conductor electrically connected to the capacitor and extending toward the other side in the first direction,
• wherein the element-side first electrode conductor and the element-side second electrode conductor face each other and constitute an element-side conductor set,
• the capacitor-side first electrode conductor and the capacitor-side second electrode conductor face each other and constitute a capacitor-side conductor set,
• the element-side first electrode conductor comprises an element-side first connecting surface that overlaps with the capacitor-side first electrode conductor,
• the element-side second electrode conductor comprises an element-side protrusion protruding further toward the one side in the first direction than the element-side first electrode conductor,
• the element-side protrusion comprises an element-side second connecting surface that overlaps with the capacitor-side second electrode conductor,
• the capacitor-side first electrode conductor comprises a capacitor-side protrusion protruding further toward the other side in the first direction than the capacitor-side second electrode conductor,
• the capacitor-side protrusion comprises a capacitor-side first connecting surface that overlaps with the element-side first connecting surface,
• the capacitor-side second electrode conductor comprises a capacitor-side second connecting surface that overlaps with the element-side second connecting surface,
• the element-side first connecting surface and the capacitor-side first connecting surface extend parallel to each other and are electrically connected to each other since the element-side first connecting surface and the capacitor-side first connecting surface overlap with each other, and
• the element-side second connecting surface and the capacitor-side second connecting surface extend parallel to each other and are electrically connected to each other since the element-side second connecting surface and the capacitor-side second connecting surface overlap with each other.