Patent ID: 8075753
Filing Date: 2011-12-13
Classification: G01N

Abstract:
1. A gas sensor comprising: a sensor element for detecting a concentration of a specific gas component in a gas under measurement; a heater for heating the sensor element, the heater having a roughly cylindrical shape; a housing into which the sensor element is inserted to be held therein; and a terminal unit disposed so as to cover a proximal end portion of the heater on a proximal end side of the housing, wherein the terminal unit includes a pair of insulators, a pair of metal terminals disposed on internal surfaces of the insulators and being in contact with a pair of electrode pads provided on a surface of the proximal end portion of the heater, and a pressing member pressing the pair of the insulators in a direction that the pair of the insulators approach each other, the pair of the insulators being in contact with the heater and out of contact with each other, the proximal end portion of the heater being contact-supported at three or more support points by the terminal unit.