Patent ID: 6639505
Filing Date: 2003-10-28
Classification: G01K,H01C

Abstract:
A temperature sensor comprising:a metal enclosure; a thermistor element contained in said metal enclosure; and a pair of electrode wires connected to two opposing end surfaces of said thermistor element in a form being exposed over said thermistor element in said metal enclosure to take out thermistor signals; wherein a distance between said thermistor element and said metal enclosure is not smaller than 0 but is not larger than 0.3 mm; said metal enclosure being of a cylindrical shape, said thermistor element is contained in said metal enclosure on the side of one end thereof, and a protion of said metal enclosure where said thermistor element is contained, is a small-diameter portion which is so draw-formed as to possess a diameter smaller than that of other portions of said metal enclosure; and a sheath pin in contained in said metal enclosure on the other side thereof, said sheath pin having core wires electrically connected to said pair of electrode wires and having a diameter larger than that of said thermistor element, and a portion of said metal enclosure between the portion containing said sheath pin and said small diameter portion is so draw-formed as to possess a diameter larger than that of said small-diameter portion but smaller than that of the portion containing the sheath pin, the outer diameter of the sheath pin being from 1.6 mm to 3.2 mm, and the diameter of the circumscribed circle of the thermistor element is from 0.35 mm to 0.8 mm.