POSITIVE CHARACTERISTIC THERMISTOR HEATING ELEMENT AND CONNECTING STRUCTURE OF ELECTRODE TERMINAL AND POSITIVE CHARACTERISTIC THERMISTOR HEATING ELEMENT

摘要

PURPOSE: To simplify normal connection between an electrode layer and an electrode terminal of a heating element, and reliably take out a desired calorific value by firmly sandwiching a positive characteristic thermistor heating element by spring elasticity of the electrode terminal formed in a cross-sectional almost U shape. ;CONSTITUTION: An electrode terminal 1 is formed in a cross-sectional almost U shape out of a stainless steel plate excellent in spring elasticity. A positive characteristic thermistor(PTC) heating element 11 is composed of a barium titanate type ceramic element or the like, and silver paste electrode layers 11a are respectively arranged on its both upper and under surfaces. The element 11 is arranged between contact pieces 1b and 1b' of the element 1, and the element 1 is firmly sandwiched by the contact pieces 1b and 1b'. Therefore, a normal connecting condition can be reliably obtained.;COPYRIGHT: (C)1996,JPO