Thermal switching device
AssigneeThermostat- und Schaltgeratebau GmbH & Co.
InventorsKarlheinz Eberl, Udo Stenzel, Klaus Dölling
Life of this patent
Estimating the term…
Abstract
The invention relates to a thermally controlled electric switching device 1, especially a temperature fuse or a temperature limiter, with a switching contact device 2 comprising a fixed contact 3 and a motion contact 4, as well as a meltable element 8 containing a meltable material 7, wherein the meltable material 7 supports a transmission element 9 before being activated when a trigger temperature is exceeded and, when the trigger temperature is exceeded, is forced out of its receptacle 6 by the end of the transmission element 9 impinging upon it, wherein a radially protruding, flat melt material screen 19 is arranged on the transmission element 9.
Claims10
A thermally controlled electric switching device (1), especially a temperature fuse or a temperature limiter, with a switching contact device (2) comprising a fixed contact (3) and a motion contact (4), as well as a meltable element (8) containing a meltable material (7), wherein the meltable material (7) supports a transmission element (9) before being activated when a trigger temperature is exceeded and, when the trigger temperature is exceeded, is forced out of its receptacle (6) by the end of the transmission element (9) impinging upon it,
- wherein a radially protruding, flat meltable material screen (19) is arranged on the transmission element (9), the outer edge (21) of the meltable material screen (19) is pulled downward in the direction of the meltable element (8) to form an undercut (22), the undercut (22) beneath the meltable material screen (19) has a rounded cross-section and is shaped in such a way so that the flow direction of the fluid meltable material (7) running up a stamp-like segment (20) of the transmission element (9) is diverted after it has entered the undercut (22).
Dependencies are inferred from the claim text.