Electrical switching device
AssigneeE.G.O. Elektro-Geratebau GmbH
InventorsGünther Reimold, Nils Platt, Siegfried Mannuss
Life of this patent
Estimating the term…
Abstract
An electrical switching device includes a switching device socket and terminals. The device also includes a snap-action switch with at least one catch spring. The catch spring carries at least one switching contact stud. The snap-action switch is trippable by a thermobimetal. For thermal influencing the thermobimetal, a heating device with a heating resistor mounted on a metal support is provided. The metal support can be made from a steel plate carrying an electrically insulating layer made from glass. An extensive heating resistor is provided on the insulating glass.
Claims13
Electrical switching device, with a switching device socket and terminals, which has a snap-action switch with at least one catch spring, which carries at least one switching contact stud, said snap-action switch being trippable by a thermomechanical switching member;
- wherein a heating device for the thermal influencing of said thermomechanical switching member is provided;
- wherein said heating device is provided with a support for at least one heating resistor;
- wherein said support is made of metal and has an electrically insulating layer between one surface and said at least one heating resistor;
- and
- wherein said at least one heating resistor is a flat, thick-film resistor being directly applied to said insulating layer.
Dependencies are inferred from the claim text.