Microwave oven capable of preventing overcurrent of a microswitch for controlling a DC power source
US6664523B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | May 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/6417
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microwave oven has a case forming a cooking chamber, a door for opening/closing said chamber, a high voltage transformer for generating a high voltage, and a magnetron for generating microwaves driven by the high voltage outputted from the high voltage transformer. The microwave oven further includes a microswitch serving as a detector for detecting opening/closing of the cooking chamber; a control device for outputting a driving signal corresponding to the detected opening/closing of the chamber, and an opening/closing device for controlling a power source supplying power to the high voltage transformer according to reception of the driving signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.