Patent ID: 8668385

Claim:
A temperature sensor comprising: a metal tube having a closed front end; a temperature sensor element disposed in a front end portion of the tube; an insulation sheath disposed rearward of the temperature sensor element within the tube and core wires connected to respective electrodes of the temperature sensor element, the core wires extending through the insulation sheath; lead wires connected to respective rear ends of the core wires, the core wires extending outward from a rear end of the insulation sheath, and the lead wires extending outward from a rear end of the tube; and an elastic seal member having rubber-like elasticity, the lead wires extending through the seal member, at least a portion of the seal member being disposed within the tube and rearward of the rear end of the insulation sheath for maintaining a seal at a rear end portion of the tube; the seal member being deformed through crimping of the tube; the temperature sensor being characterized in that, through deformation of the seal member, the seal member presses the rear end of the insulation sheath frontward, directly or via another member, by means of a frontward-oriented surface of the seal member, whereby the temperature sensor element is pressed against a front end of the tube via the insulation sheath.