THERMISTOR ELEMENT, TEMPERATURE SENSOR, AND METHOD FOR MANUFACTURING THE THERMISTOR ELEMENT

摘要

A thermistor element includes a thermistor main body having a rectangular parallelepiped shape, and a first covering layer having reduction resistance and covering the periphery of the thermistor main body. At least a portion (exposed outer surface) of the outer surface of the first covering layer is exposed to the outside. When the shortest distance in a straight line in the first covering layer extending from a starting point on the thermistor main body to the exposed outer surface is defined as an exposed layer thickness at the starting point, the first covering layer is formed such that an exposed layer thickness measured by using any vertex of the rectangular parallelepiped thermistor main body as a starting point is equal to or greater than the smallest one of exposed layer thicknesses measured by using points on three sides and three flat surfaces which form the vertex.

主权项

1. A thermistor element comprising:
a thermistor main body made of an electrically conductive sintered oxide and having a rectangular parallelepiped shape; and a first covering layer which has reduction resistance, said first covering layer covering a periphery of the thermistor main body and having an outer surface, at least a portion of which is an exposed outer surface exposed to the outside, wherein when a shortest distance in a straight line in the first covering layer extending from a starting point on the thermistor main body to the exposed outer surface is defined as an exposed layer thickness at the starting point, the first covering layer is formed such that the exposed layer thickness measured by using any vertex of the rectangular parallelepiped thermistor main body as a starting point is equal to or greater than the smallest one of exposed layer thicknesses measured by using, as starting points, points which are other than the vertex and are located on three sides and three flat surfaces which form the vertex.