High voltage power converter

US12220987B2 · kind B2 · utility

Assignee

• ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

• Uwe Waltrich · Forchheim, DE
• Stanley Buchert · Herzogenaurach, DE
• Marco Bohlländer · Hirschaid, DE
• Claus Müller · Wolfratshausen, DE

Key dates

• Filing date: Apr 3, 2024
• Grant date: Feb 11, 2025
• Expiry date: Apr 3, 2044

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2240/525
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A power electronics converter includes a multi-layer planar carrier substrate and a converter commutation cell including a power circuit. The power circuit includes at least one power semiconductor switching element. Each power semiconductor switching element is included in a power semiconductor prepackage. One or more terminals of the power semiconductor switching element are connected to at least one conductive layer of the multi-layer planar carrier substrate at an electrical connection side of the power semiconductor prepackage. The electrical connection side is spaced apart in a z-direction from the carrier substrate by a prepackage gap. A peak rated power output of the power electronics converter is greater than or equal to 25 kW, and a converter parameter θ, which is defined as a size in the z-direction of the prepackage gap divided by a maximum electric field strength in the prepackage gap, is less than or equal to 300 pm2/V.