GAS SENSOR AND GAS SENSOR MANUFACTURING METHOD

摘要

Provided is a gas sensor in which a protective cover has no looseness even by repetitive use. The gas sensor includes a sensor element for detecting a predetermined measurement target gas component in a measurement gas; a protective cover which protects a side of one end portion of the sensor element; and a housing which houses the sensor element. The protective cover includes a brim portion at one end portion of an outer surface of the protective cover. The brim portion is brought into contact with a contact surface provided in said housing, and is held between a swaging portion and the contact surface, the swaging portion extending from the contact surface while bending, so that the protective cover is fixed to the housing. The brim portion is tilted at a tilt angle of 5° or more and 15° or less relative to a plane vertical to a central axis of the gas sensor.

主权项

1. A gas sensor comprising:
a sensor element for detecting a predetermined measurement target gas component in a measurement gas; a protective cover which protects one end portion side of said sensor element; and a housing which houses said sensor element, wherein said protective cover includes a brim portion at one end portion of an outer surface, said brim portion is brought into contact with a contact surface provided in said housing, and is held between a swaging portion and said contact surface, said swaging portion extending from said contact surface while bending, so that said protective cover is fixed to said housing, and said brim portion is tilted at a tilt angle of 5° or more and 15° or less relative to a plane vertical to a central axis of said gas sensor.