Patent ID: 8256956
Filing Date: 2012-09-04
Classification: G01K

Abstract:
1. A temperature sensor comprising: a temperature sensing device having a temperature sensing unit and a pair of device electrode wires extending from the temperature sensing unit; a sheath member including a sheath wire connected at a junction to at least one of the device electrode wires and a sheath outer pipe retaining the sheath wire in an insulating material; an inner tube made of a metal which has a cylindrical shape having a closed bottom at a front end thereof, said inner tube accommodating the temperature sensing element and the junction in the closed bottom of the inner tube serving as a leading detecting end of the temperature sensor, and extending in an extension direction of the device electrode wire and the sheath wire; and an outer tube which has a cylindrical shape having a closed bottom at a front end thereof and including a gas inlet hole, said outer tube covering the inner tube, and being spaced from the inner tube frontward of the junction when viewed in a direction perpendicular to an axial direction of the inner tube, wherein the sheath member is disposed within the inner tube, and a front end of the sheath outer pipe is rearward of the junction.