Abstract:
The invention relates to a plug assembly for a small refrigerating unit or the like which plug assembly is equipped with one or more PTC resistors. Thermally loaded, ceramic resistors such as PTC resistors are generally brittle and have the characteristics of a substantial temperature expansion coefficient while being relatively weak structurally. The plug assembly accommodates one or more PTC resistors with a resistor holding device in which resiliently biased electrical contacts hold the resistors firmly in fixed positions while permitting the resistors to expand freely upon being heated without incurring stresses which would cause breakage.
Abstract:
The invention relates to a device for holding and contacting thermally loaded ceramic resistors. Thermally loaded ceramic resistors such as PTC resistors are generally brittle and, while they have the characteristic of a substantial temperature expansion coefficient, they are relatively weak structurally. The device hereof which accommodates a PTC resistor includes resiliently biased electrical contacts which old the resistor firmly in a fixed position while permitting the resistor to expand freely upon being heated without incurring stresses wihch would cause breakage.