| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive characteristic ceramic heating element to which safety aspects are paid attention influence the positive characteristic ceramic electrode surface, even if surface condensation is caused on a heating element fin in a high humidity state, such as a bathroom dryer in a positive characteristic ceramic heating element unit having high safety and reliability, through prevention of oxidation by protecting a positive characteristic ceramic electrode from humidity. SOLUTION: This positive characteristic ceramic heating element unit is formed by arranging positive characteristic ceramics and a current-carrying plate in an aluminum cylinder body and has an insulating plate, interposed between the cylinder body and the current-carrying plate. In this constitution, the aluminum cylinder body can be constituted, by having a single slit in the lengthwise direction.
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