Patent ID: 9151728
Filing Date: 2015-10-06
Classification: G01N

Abstract:
1. A gas sensor, comprising: a cylindrical sensor element; a connection terminal extending axially of the sensor element and brought into contact with an outer surface of the sensor element; and a separator located rear of the sensor element and having a through hole in which a rear end side of the connection terminal is inserted, wherein the connection terminal has: a cylindrical outer fitting portion formed on a front end side of the connection terminal and fitted onto the sensor element; an extension portion extending rearward from the outer fitting portion and inserted in the through hole of the separator; and a pulling prevention portion adapted to prevent the extension portion from further pulling in the through hole by contact with a front end surface of the separator; wherein the outer fitting portion has cuts axially formed in a rear end side thereof such that the cuts are located on opposite sides of the extension portion; and the extension portion includes a bottom section protruding axially from a position in front of a rear end of the outer fitting portion.