POSITIVE TEMPERATURE CO-EFFICIENT HEATING ELEMENT

摘要

A heating element for an electrical appliance, such as an electric razor. The element has a hollow metallic sleeve having first and second sides, the sleeve being formed or otherwise arranged so that the first side of the sleeve has greater thermal mass that the second side of the sleeve. A positive temperature coefficient ceramic element is located within the sleeve and held in thermal contact with the sleeve by compressing a portion of the sleeve about the ceramic element.