Electrical heating device with a plate element comprising conductive paths

US9273882B2 · kind B2 · utility

Assignee

• Eberspächer Catem GmbH & Co. · DE

Inventors

• Franz Bohlender · Kandel, DE
• Kurt Walz · Hagenbach, DE
• Robert Götzelmann · Karlsruhe, DE
• Michael Niederer · Bad Bergzabern, DE
• Dieter Emanuel · Annweiler am Trifels, DE

Key dates

• Filing date: Mar 29, 2012
• Grant date: Mar 1, 2016
• Expiry date: Apr 30, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49368
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An electrical heating includes a plurality of electrical heating elements which are held by a housing and which abut heat conducting surfaces over which a medium to be heated flows. The electrical heating elements comprise contact lugs, arranged essentially at the same height, that are connected through a plate element. The plate element includes conductive paths and contact lug receptacles for the contact lugs. The plate element may include a carrier plate of non-conducting material and a stamped out metal plate that are joined together to form one unit. A method of manufacturing a plate element includes manufacturing the carrier plate by injection moulding and subjecting a metal plate to stamping operations to form area elements which are joined together by connecting ridges and in which the contact lug receptacles are located. The carrier plate and the metal plate are then joined, and the connecting ridges are then parted.