Patent ID: 9207130
Filing Date: 2015-12-08
Classification: F01N,G01K,Y10T

Abstract:
1. A method of manufacturing a sensor comprising: a temperature sensor element having a temperature-sensing portion whose electrical characteristic changes with a change in an atmosphere, and a terminal wire extending from the temperature-sensing portion in an axial direction; and an electricity conduction wire composed of a plurality of stranded conductors, extending in the axial direction, and conveying an electric signal from the temperature sensor element, the terminal wire and the electricity conduction wire being disposed such that they overlap each other in the axial direction and being joined through welding, the method being characterized by comprising: a first step of partially fusing the plurality of conductors by first welding, to thereby unite the plurality of conductors; and a second step of connecting the terminal wire and the electricity conduction wire by forming a second weld portion by second welding in a region where the terminal wire overlaps with the electricity conduction wire, wherein a first weld portion which unites the plurality of conductors is formed by the first welding, and the second weld portion is formed by the second welding at a position located rearward of the first weld portion.