Positive TCR thermistor device having surface roughness and filling oil for high heat transfer characteristics
US5729189A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Apr 11, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/141
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive TCR thermistor device has excellent electrical contact between a heat generator and heat radiating blocks and high heat transfer efficiency therebetween. The positive TCR thermistor includes a heat generator having a positive temperature coefficient of resistance and heat radiating blocks supplying electric current to the heat generator and heating a heated medium by receiving heat generated by the heat generator. The heat generator is provided with a metallic paste electrode at a contact surface which is in contact with the heat radiating blocks and oil having flowability is disposed between the metallic paste electrode of the heat generator and the heat radiating blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.