Dishwasher and method for detecting the water level within a dishwasher
US9451868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Aug 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2501/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The invention relates to a method for detecting a water level in a dishwasher comprising a circulation pump and a TRIAC connected to the circulation pump for providing electrical power to a motor (20) of the circulation pump. According to the invention, a firing angle condition (18) of the TRIAC is used to derive the water level in the dishwasher.The invention further relates to a dishwasher comprising a circulation pump and a TRIAC connected to the circulation pump for providing electrical power to a motor of the circulation pump, a drain pump connected to a sump of the dishwasher, means for detecting a firing angle condition of the TRIAC. Control means are provided for starting the drain pump and/or supplying additional water when predefined conditions of the TRIAC firing angle are reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.