Cooling body and rectifier module for an electrical machine

US7505273B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Horst Braun · Stuttgart, DE
• Holger Scholzen · Stuttgart, DE
• Hardy Haegele · Bruchsal, DE

Key dates

• Filing date: May 2, 2003
• Grant date: Mar 17, 2009
• Expiry date: May 2, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A heat sink, in particular for a rectifier unit of an electrical machine has at least one diode opening, and disposed around the at least one diode opening at least partially ring-shaped cooling air openings and at least one mass-increasing raised area, wherein the mass-increasing raised area extends between two of the cooling air openings associated with the diode opening.