EP2240063A1 - A dishwasher - Google Patents
A dishwasherInfo
- Publication number
- EP2240063A1 EP2240063A1 EP08867435A EP08867435A EP2240063A1 EP 2240063 A1 EP2240063 A1 EP 2240063A1 EP 08867435 A EP08867435 A EP 08867435A EP 08867435 A EP08867435 A EP 08867435A EP 2240063 A1 EP2240063 A1 EP 2240063A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- door
- dishwasher
- measurements
- wash water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/26—Loading door status, e.g. door latch opened or closed state
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/36—Other output
Definitions
- the present invention relates to dishwashers comprising a sensor wherein the data collected is recorded in the memory.
- a washing program comprised of various steps such as pre-washing, main washing, rinsing is implemented.
- turbidity sensors, conductivity sensors etc. are used for detecting the data relating to the amount of dirt in the dishes placed in the machine, whether the dishes are properly cleaned after washing or the amount of detergent mixed in the wash water.
- these sensors used are affected by factors such as intake of water into the washing chamber and the rotational speed of the spray arms and as a result the measurement cannot be performed accurately.
- the aim of the present invention is the realization of a dishwasher comprising a sensor that detects with a high precision even if the user opens the door during washing.
- a sensor is used for measuring the variables such water turbidity, conductivity etc. of water for determining the washing program steps and the parameters such as water temperature, duration etc. relating to these steps.
- a series of measurements are taken at certain intervals, for example at the start, middle and end of washing and these measurements are recorded in the memory until the necessary number of measurements are taken for determining the status of the wash water.
- the average of the data in the memory is taken to obtain the information about the status of the wash water.
- the memory is reset by deleting the data recorded during the last series of measurements and measurements are started afresh after the door is closed.
- accuracy of measurement is increased by preventing the erroneous detection of the wash water due to the discontinuity of data.
- the senor waits for a period of time after the door is closed and afterwards starts to take measurements. Accordingly, defective detection is prevented by enabling remixing of the dirt.
- FIG. 1 is the schematic view of a dishwasher.
- the dishwasher (1) provides cleaning of the dishes in accordance with a washing program including at least some of the various steps such as pre-washing, main washing, rinsing, drying and regeneration.
- the dishwasher (1) comprises
- At least one sensor (4) that measures a variable relating to the wash water in order to detect the status of the wash water
- the sensor (4) makes a series of measurements at certain intervals. The readings taken as a result of the measurements are recorded in the memory (5) until the necessary number of measurements is taken for assessing the status of the wash water. When the sufficient number of measurements is taken, the average of the data in the memory (5) is taken in order to assess the status of the wash water.
- the sensor (4) waits for a period of time (t w ) after the door (3) is closed and afterwards starts to take measurements.
- the sensor (4) detects the turbidity of the wash water. There is a great difference between the turbidity measurements taken by the sensor (4) before the door (3) is opened from the ones measured right after the door (3) is closed since the dirt settles down when the door (3) is opened due to stopping of the washing.
- these data that can be misleading are prevented from being used in detecting the amount of dirt and the status of the dirt is detected with a high accuracy. Accordingly, dirt status of the dishes emplaced in the dishwasher (1) is detected with a high accuracy and the selection of the washing program is made correctly in accordance with the said data.
- the senor (4) detects the conductivity status of the wash water.
- the amount of detergent mixed in the wash water is detected correctly and the decisions relating to washing are made in accordance with this information.
- the information that needs to be identified correctly relating to the amount of dirt and detergent in order to implement the washing process with the highest performance level is prevented from being detected erroneously due to the discontinuance occurring when the door (3) is opened during washing, thereby increasing the washing effectiveness.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL08867435T PL2240063T3 (en) | 2007-12-31 | 2008-12-06 | A dishwasher |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR200709234 | 2007-12-31 | ||
| PCT/EP2008/066965 WO2009083399A1 (en) | 2007-12-31 | 2008-12-06 | A dishwasher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2240063A1 true EP2240063A1 (en) | 2010-10-20 |
| EP2240063B1 EP2240063B1 (en) | 2014-11-12 |
Family
ID=40405061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08867435.3A Not-in-force EP2240063B1 (en) | 2007-12-31 | 2008-12-06 | A dishwasher |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2240063B1 (en) |
| ES (1) | ES2527650T3 (en) |
| PL (1) | PL2240063T3 (en) |
| WO (1) | WO2009083399A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673441A (en) * | 1982-10-18 | 1987-06-16 | Meyers Theodore F | Dishwashing method |
| JP2005329068A (en) * | 2004-05-20 | 2005-12-02 | Sanyo Electric Co Ltd | Dish washer |
| JP4350013B2 (en) * | 2004-09-14 | 2009-10-21 | シャープ株式会社 | dishwasher |
-
2008
- 2008-12-06 WO PCT/EP2008/066965 patent/WO2009083399A1/en not_active Ceased
- 2008-12-06 ES ES08867435.3T patent/ES2527650T3/en active Active
- 2008-12-06 PL PL08867435T patent/PL2240063T3/en unknown
- 2008-12-06 EP EP08867435.3A patent/EP2240063B1/en not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009083399A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009083399A1 (en) | 2009-07-09 |
| EP2240063B1 (en) | 2014-11-12 |
| PL2240063T3 (en) | 2015-04-30 |
| ES2527650T3 (en) | 2015-01-28 |
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