Planar heating device and seat with same
US8752891B2 · kind B2 · utility
6Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/029
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A planar heating device and a seat equipped with the device include: first and second warming heaters connected in parallel with electric power source; thermistor; thermostat connected in series with second warming heater; a heating part, i.e., first warming heater, that heats thermistor and thermostat; and controller to control temperatures of first and second warming heaters in accordance with temperature information from thermistor. For a period until thermostat turns off, quick-heating property is improved by energizing first and second warming heaters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.