Patent ID: 9360448
Filing Date: 2016-06-07
CPC Classification: G01K,G01N

Claim Text:
1. A gas sensor comprising a sensor element which measures the concentration of a specific gas component contained in gas flowing through a flow passage provided in an internal combustion engine, a housing which accommodates and holds the sensor element and which is inserted into the flow passage, and a base portion which is attached to the housing and which is disposed outside the flow passage, the gas sensor being characterized in that the base portion includes: a first base portion which is a portion of the base portion located on the side toward the housing; and a second base portion which is molded separately from the first base portion, which is a portion of the base portion located opposite the housing, and which has a connector portion in which a plurality of terminals which are to be connected electrically to the sensor element are disposed such that they extend in a direction intersecting an insertion direction of the sensor element, wherein the first base portion is formed of metal, and the first base portion and the housing are fixed together by welding, a sleeve and a talc ring are accommodated in the housing, and the sleeve is disposed so as to press the talc ring toward a lower end side of the gas sensor in cooperation with the housing, and an upper end of the housing is deformed inward in a radial direction, the radial direction being perpendicular to the insertion direction of the sensor element.