Patent ID: 9322718
Filing Date: 2016-04-26
CPC Classification: G01K

Claim Text:
1. A temperature sensor comprising: a closed-end cylindrical protective tube with one end side closed and another end side open; first and second thermistors placed on the one end side in the protective tube; a first pair of wires connected to two poles of the first thermistor and a second pair of wires connected to two poles of the second thermistor; a first pair of lead wires connected at one end to the first pair of wires in the protective tube and led out of the protective tube at another end; a second pair of lead wires connected at one end to the second pair of wires in the protective tube and led out of the protective tube at another end; and a pair of holders made of insulative material and adapted to hold connecting portions between the first and second pairs of wires and the first and second pairs of lead wires in the protective tube, wherein each holder has a substantially semicircular cross-section with a flat face and an opposing flat portion on an outer circumferential surface of the holder and is configured such that a space is formed between an inner circumferential surface of the protective tube and the flat portion of the holder when the pair of holders is inserted into the protective tube, the flat face of each holder opposes the other holder, each of the first and second thermistors is provided with one of the pair of holders corresponding thereto; and the connecting portions between the first and second pairs of wires and the first and second pairs of lead wires are held by the pair of holders with wire insulation being provided, a pair of grooves is formed in each holder that opens on a side of the holder in which the flat face of the holder is provided, wherein each groove is configured to house one wire of the first and second pairs of wires and one lead wire of the first and second pairs of lead wires connected to the one wire.