Heat-generating element of a heating device

US7667166B2 · kind B2 · utility

Assignee

• Catem GmbH & Co. KG · DE

Inventors

• Michael Zeyen · Herxheim, DE
• Kurt Walz · Hagenbach, DE
• Michael Niederer · Bad Bergzabern, DE
• Franz Bohlender · Kandel, DE

Key dates

• Filing date: Sep 22, 2006
• Grant date: Feb 23, 2010
• Expiry date: Nov 22, 2027

Classification

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

Abstract

A heat-generating element of a heating device for heating air includes at least one PTC element and, lying on opposing side surfaces of the PTC element, electric strip conductors. A heat-generating element that is improved with a view to safety from electric flashovers and leakage currents is created with the invention under consideration by providing an insulating gap between the PTC element and the positioning frame material that circumferentially surrounds the frame opening. Also disclosed is a heating device for heating air with multiple heat-generating elements, each heat-generating element comprising at least one PTC element and, lying on opposing side surfaces of the PTC element, electric strip conductors and multiple heat-emitting elements that are arranged in parallel layers and that are held in position in a frame on opposing sides of the heat-generating element with a spring bias. Due to the use of a heat-generating element, the heating device is protected from electric flashovers and leakage currents with a higher degree of certainty.