Positive-temperature-coefficient thermistor heating device and process for production of the same
US5354969A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | May 13, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/141
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive-temperature-coefficient thermistor heating device including of a PTC element, a first electrode formed on its surface, a heat radiating means having heat radiating fins and a second electrode, and conductive particles contained in the first electrode and electrically conductive with the second electrode, and, also, a process for production of a positive-temperature-coefficient thermistor heating device including the steps of printing an electrode material paste containing conductive particles on the surface of a PTC element, heating this to bake it on and form a first electrode having a rough surface, and bringing the first electrode and the second electrode of the heat radiating means into contact by the conductive particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.