Flexible circuit assembly and cover for traction inverter system for an electric vehicle

A cover for a traction inverter system, comprising:

• an outer surface including:
• a central region, a first lateral region, and a second lateral region, and
• a constrained layer damping material attached to at least a portion of the central region, at least a portion of the first lateral region, and at least a portion of the second lateral region;
• an inner surface including ribs;
• and
• a perimeter configured to be attached to a housing,
• wherein the central region, the first lateral region, and the second lateral region form contours that conform to locations of components within the housing, and the constrained layer damping material conforms to the contours.

A traction inverter system, comprising:

• a first flexible circuit assembly attached to a main controller board and a first motor controller board;
• a second flexible circuit assembly attached to the main controller board and a second motor controller board, wherein each flexible circuit assembly includes:
• a flexible printed circuit body forming an angled shape having an inner side and an outer side,
• a first connector attached to a first end of the flexible printed circuit body, and
• a second connector attached to a second end of the flexible printed circuit body;
• and
• a cover, including:
• an outer surface including:
• a central region, a first lateral region, and a second lateral region, and
• a constrained layer damping material attached to at least a portion of the central region, at least a portion of the first lateral region, and at least a portion of the second lateral region,
• an inner surface including ribs, and
• a perimeter attached to a housing,
• wherein the central region, the first lateral region, and the second lateral region form contours that conform to locations of the first and second flexible circuit assemblies, the main controller board, and the first and second motor controller boards within the housing, and the constrained layer damping material conforms to the contours.