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Patent Searching and Data


Title:
TEMPERATURE SENSOR ELEMENT AND METHOD FOR MANUFACTURING TEMPERATURE SENSOR ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/065541
Kind Code:
A1
Abstract:
Provided is a temperature sensor element capable of maintaining an electrical resistance value constant even when used continuously in a high-temperature reductive atmosphere. A temperature sensor element 1 according to the present invention is provided with: an element body 2 that comprises a heat sensitive body 11 formed of a thermistor sintered body having an electrical characteristic that changes depending on the temperature, and a pair of lead wires 15, 15 connected to the heat sensitive body 11 with electrodes 13, 13 therebetween; and a protective layer 3 that protects the heat sensitive body 11. The protective layer 3 has an inner protective layer 20 that covers the heat sensitive body 11 and an outer protective layer 30 that covers the outside of the inner protective layer 20. The inner protective layer 20 in the present invention comprises an aggregate of particles that are made of nonmetal and are chemically stable with respect to the thermistor sintered body.

Inventors:
TAKEUCHI Akitaka (1-24, Kamiochiai 2-Chome, Chuo-k, Saitama-shi Saitama 01, JP)
NIIZEKI Naohiro (1-24, Kamiochiai 2-Chome, Chuo-k, Saitama-shi Saitama 01, JP)
Application Number:
JP2020/035269
Publication Date:
April 08, 2021
Filing Date:
September 17, 2020
Export Citation:
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Assignee:
SHIBAURA ELECTRONICS CO., LTD. (Kamiochiai 2-Chome Chuo-ku, Saitama-sh, Saitama 01, JP)
International Classes:
G01K7/22; H01C7/04
Attorney, Agent or Firm:
OBA, Mitsuru et al. (8F KM Building, 4-3, Iwamotocho 1-chome, Chiyoda-k, Tokyo 32, JP)
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