Thermistor
AssigneeTyco Electronics Raychem GmbH
InventorsHiroyuki Koyama, Takashi Sato
Life of this patent
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Abstract
A thermistor is provided with a third electrode placed so that it is not in contact with either the first or second electrode, and with a heating part integrally formed with the same material as the variable resistance part and in contact with the third electrode, the heating part changing the resistance value of the variable resistance part by generating heat when current passes between the third electrode and either of the first or second electrodes.
Claims7
A thermistor having a variable resistance part, whose resistance value changes in accordance with changes in temperature, between a first and a second electrode, the thermistor interrupting current between the first and second electrodes in response to changes in the resistance value of the variable resistance part, comprising:
- a third electrode placed so that it is not in contact with either the first or second electrode and does not overlap either the first or second electrode;
- and
- a heating part integrally formed with the same material as the variable resistance part in the form of a sheet, the heating part and the variable resistance part forming a non-overlapping section of the sheet, the heating part being in contact with the third electrode, the heating part changing the resistance value of the variable resistance part by generating heat when current passes between the third electrode and either of the first or second electrodes.
Dependencies are inferred from the claim text.