Thermal fuse for electronic telephone case in motor vehicle, has bridge for connecting parts of conductor paths and spanning opening that ruptures electrical contact between parts, where bridge is supported against parts of conductor paths

摘要

#CMT# #/CMT# The fuse has a brazed bridge (14) connecting parts (10, 11) of conductor paths and spanning an opening (12) that ruptures electrical contact between the parts of the conductor paths. The bridge is supported against the parts of the conductor paths. Electronic components are assembled on the conductor paths that are etched on a printed circuit board (1). The width of the bridge is equal to that of parts of the conductor paths. #CMT#USE : #/CMT# Thermal fuse for protecting an electronic case (claimed) e.g. electronic telephone case in a motor vehicle, against short circuits. #CMT#ADVANTAGE : #/CMT# The thermal fuse is fabricated without requiring additional pieces and additional operations after brazing, so that the fabrication cost of the fuse is reduced. The thermal fuse protects the electronic case against short circuit in a reliable and economic manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic top view of a thermal fuse during fabrication with a wedge inserted in an opening that ruptures contact. XX' : Longitudinal axis 1 : Printed circuit board 10, 11 : Conductor path's parts 12 : Opening 13 : Wedge 14 : Brazed bridge.