Patent · US Active

PTC heating element and electric heating device comprising such a PTC heating element and method for producing an electric heating device

US10485059B2 · kind B2 · utility

2Cited by

1References

11Claims

0Family size

Assignee

Eberspächer Catem GmbH & Co. · DE

Inventors

Franz Bohlender · Kandel, DE
Patrick Kachelhoffer · Seebach, FR
Michael Niederer · Bad Bergzabern, DE
Andreas Schwarzer · Hemmingen, DE
Kurt Walz · Hagenbach, DE

Key dates

Filing date	Jun 1, 2016
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Nov 5, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2203/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A PTC heating element includes at least one PTC element provided between strip conductors. To reduce the air gap and creep distance between the two strip conductors an insulating mass seals at least one of the strip conductors and/or the PTC element over the whole circumference. In the electric heating device according to the invention, such a PTC heating element lies in an electrically conducting manner against heat-emitting surfaces of the heating device. According to the method of the invention for producing an electric heating device, the strip conductors are glued to the PTC element for producing a PTC heating cell. The PTC heating cell is then sealed between two electrical insulation layers by an insulating mass which is applied circumferentially around at least one of the strip conductors and/or the PTC element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.