Electrical heating device, especially for motor vehicles

US7361868B2 · kind B2 · utility

Assignees

• BEHR GMBH & CO. KG · DE
• Behr France S.A.R.L. · FR

Inventors

• Jurgen Otto · Hattingen, DE
• Michel Brun · Bourges, FR
• Yannik Laumonnerie · Rouffach, FR
• Gregory Lucas · La Crescent, US
• Pascal Miss · Creutzwald, FR
• Mathieu Mougey · Ensisheim, FR
• Christophe Schmittheisler · Bruz, FR

Key dates

• Filing date: Mar 5, 2004
• Grant date: Apr 22, 2008
• Expiry date: Mar 5, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2203/023
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

This disclosure relates to an electrical heating device, especially for motor vehicles, including a closed frame (2) which include rails (3, 4) and cross rails (5, 6), heating elements (7) which include elements made of electrically conductive plastic layers (18) having PCT effect, which are arranged between contact plates (15, 16), heat-conducting secondary surface elements (8) that can be overflown by air and at least one electrically conductive spring element (9), wherein the heating elements (7) and the secondary surface elements (8) are alternatingly arranged next to one another and are braced against each other by the rails (3, 4) and a spring element (9) placed centrally which replaces the secondary surface element (8).