Automatic heating apparatus having a system for sensing the temperature of heated air generated by material being heated
US5140120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | May 3, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/6458
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating and cooking apparatus has a detection sensor for sensing the state of heating so as to automatically control the heating operation. A partition is disposed so as to be opened to the inside of an auxiliary passage which has an inlet located at a position in the vicinity of the circumference of an impeller of a cooling fan for cooling a magnetron provided on the back side of a heating chamber and through which steam from the heating chamber is discharged to the outside. Air supplied by the fan is blown off into the auxiliary passage so as to generate a venturi action, thus promoting the flow of steam in the auxiliary passage. The detection sensor is disposed in the auxiliary passage at a position in the vicinity of a region where air is blown off so as to accurately sense the state of steam generated from a material to be heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.