WO2005012625A1 - A control method for a washer/dryer - Google Patents
A control method for a washer/dryer Download PDFInfo
- Publication number
- WO2005012625A1 WO2005012625A1 PCT/IB2004/051380 IB2004051380W WO2005012625A1 WO 2005012625 A1 WO2005012625 A1 WO 2005012625A1 IB 2004051380 W IB2004051380 W IB 2004051380W WO 2005012625 A1 WO2005012625 A1 WO 2005012625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drying
- air
- condenser
- instant
- limit
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/32—Temperature
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/34—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/62—Stopping or disabling machine operation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
Definitions
- This invention relates to a control method for a washer/dryer for the efficient determination of the period when the dried laundry reach at the required drying level.
- drying period is one of the important variable during the drying process. Drying period affects both the energy consumption values and the moisture amount in the dried laundry. In conventional washer/dryers, the drying period is determined by the user and drying is performed during the selected duration. Drying level of the laundry is measured to lower the energy consumption values and end the drying process when the laundry reach at the required drying level.
- the object of this invention is to realize a control method for a washer/dryer for providing the efficient determination of the time when the dried laundry reach at the required drying level.
- Figure 1 is a schematic view of a washer/dryer.
- Figure 2 is a flow chart of a control method for a washer/dryer.
- Figure 3 is a flow chart of another control method for a washer/dryer.
- a washer/dryer (1) comprises a drum (3) in which the laundry is placed, a tub (2) in which the drum (3) moves, a control unit (6) which evaluates the data related to the washing/drying conditions and regulates the operation, a condenser (8) which ensures the moisture in the air to be separated by condensing, a fan (9) which provides the circulation of the air in the drying cycle, a heater (10) which provides the heating energy in the drying cycle, a tub outlet (11) through which the moisture in the air is sucked from the tub (2), a tub inlet (12) through which the moisturless and heated air is delivered again to the tub (2), a circulation canal (4) in which the air of the drying cycle circulates, a moisture sensor (7) which is placed into the circulation canal (4) and measures the moisture level of the air in the drying cycle, a temperature sensor (5) which is placed into the circulation canal (4) and measures the temperature of the air in the drying cycle and a condenser valve (13) which controls the transfer of the cooling fluid which will be use in
- Temperature sensor (5) and moisture sensor (7) are placed into the circulation canal (4) preferably after the condenser (8) and the fan (9) to be least effected by the heater (10) and the condenser (8).
- the drying air is later subjected to the same cycle by the fan (9) until the required drying level is reached.
- Temperature sensor (5) and moisture sensor (7) send the measurement results of the drying cycle to the control unit (6).
- Moisture sensor (7) measures the instant moisture values of the drying air. Instant moisture values have instant decreases which is the during the opening of the condenser valve (13) and increases which is the during the closing of the condenser valve (13). The amplitude of the decreases when the condenser valve (13) is opened increases during the drying.
- Control unit (6) monitors the drying level by means of the data received from the sensors (5 and 7) and interrupts the drying cycle when the required drying level is achieved.
- h2 instant moisture amount of the air circulating in the drying cycle before the condenser valve (13) is closed.
- h imit limit difference value indicating that the required drying level is achieved.
- Tl instant temperature of the air circulating in the drying cycle.
- T imit limit temperature value when the need of condensation starts.
- Theating heating period when only the fan (9) and the heater (10) are used when the condenser (8) is not operated.
- the control method which is used for the determination of achievement of the required drying level comprises the following steps ( Figure 2): - starting the drying process (101), - measuring the instant moisture amount (hi) of the air circulating in the drying air by the moisture sensor (7) just before the condenser valve (13) is opened (102), - providing the condenser (8) with the water by opening the condenser valve (13) (103), - measuring the instant moisture amount (h2) of the air circulating in the drying air by the moisture sensor (7) just before the condenser valve (13) is closed (104), - closing the condenser valve (13) (105), - calculating the difference (#h) between the instant moisture amount (hi) of the air circulating in the drying air just before the condenser valve (13) is opened and the instant moisture amount (h2) of the air circulating in the drying air just before the condenden
- the control method which is used for the dete ⁇ nination of achievement of the required drying level comprises the following steps ( Figure 3): - operating the fan (9) and the heater (10) (201), - measuring the instant temperature (Tl) of the air circulating in the drying cycle by means of the temperature sensor (5) (202), - comparing the instant temperature (Tl) with the limit temperature value (T_limit) when the need of condensation is started (203), - returning to the step (202) of measuring the instant temperature (Tl) of the air circulating in the drying cycle by means of the temperature sensor (5), if the instant temperature (Tl) is lower than the limit temperature value (T_limit) when the need of condensation is started, - calculating the heating period (Theating) in which only the fan (9) and the heater (10) are used by the control unit (6) before the condenser (8) is operated if the following steps ( Figure 3): - operating the fan (9) and the heater (10) (201), - measuring the instant temperature (Tl) of the air circulating in the
- the drying level of the laundry is detected by monitoring the changes in the moisture values in the drying air when the condenser valve (13) is opened and closed, and drying period is optimized.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04744728A EP1660712B1 (en) | 2003-08-05 | 2004-08-03 | A control method for a washer/dryer |
DE602004011533T DE602004011533D1 (en) | 2003-08-05 | 2004-08-03 | CONTROL PROCEDURE FOR DRYERS |
TR2006/02026T TR200602026T1 (en) | 2003-08-05 | 2004-08-03 | A washer / dryer and control method. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR200301274 | 2003-08-05 | ||
TR2003/01274 | 2003-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005012625A1 true WO2005012625A1 (en) | 2005-02-10 |
Family
ID=34114587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2004/051380 WO2005012625A1 (en) | 2003-08-05 | 2004-08-03 | A control method for a washer/dryer |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1660712B1 (en) |
CN (1) | CN100564657C (en) |
AT (1) | ATE384817T1 (en) |
DE (1) | DE602004011533D1 (en) |
TR (1) | TR200602026T1 (en) |
WO (1) | WO2005012625A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006100332A1 (en) * | 2005-03-23 | 2006-09-28 | Ibai, S.Coop. | Clothes-smoothing and drying wardrobe |
WO2006100334A1 (en) * | 2005-03-23 | 2006-09-28 | Ibai, S.Coop. | Clothes-smoothing and drying wardrobe |
CN103485142A (en) * | 2013-07-26 | 2014-01-01 | 无锡小天鹅股份有限公司 | Clothes drying machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1585945A1 (en) * | 1963-02-21 | 1969-09-25 | Siemens Elektrogeraete Gmbh | Method for operating a tumble dryer |
US4763425A (en) * | 1987-06-25 | 1988-08-16 | Speed Queen Company | Automatic clothes dryer |
US5347727A (en) * | 1991-12-23 | 1994-09-20 | Goldstar Co., Ltd. | Method for controlling combined sensing type clothes dryer |
EP0829569A2 (en) * | 1996-09-13 | 1998-03-18 | Kabushiki Kaisha Toshiba | Washer-dryer apparatus |
-
2004
- 2004-08-03 DE DE602004011533T patent/DE602004011533D1/en active Active
- 2004-08-03 WO PCT/IB2004/051380 patent/WO2005012625A1/en active IP Right Grant
- 2004-08-03 EP EP04744728A patent/EP1660712B1/en not_active Not-in-force
- 2004-08-03 TR TR2006/02026T patent/TR200602026T1/en unknown
- 2004-08-03 CN CNB2004800291497A patent/CN100564657C/en not_active Expired - Fee Related
- 2004-08-03 AT AT04744728T patent/ATE384817T1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1585945A1 (en) * | 1963-02-21 | 1969-09-25 | Siemens Elektrogeraete Gmbh | Method for operating a tumble dryer |
US4763425A (en) * | 1987-06-25 | 1988-08-16 | Speed Queen Company | Automatic clothes dryer |
US5347727A (en) * | 1991-12-23 | 1994-09-20 | Goldstar Co., Ltd. | Method for controlling combined sensing type clothes dryer |
EP0829569A2 (en) * | 1996-09-13 | 1998-03-18 | Kabushiki Kaisha Toshiba | Washer-dryer apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006100332A1 (en) * | 2005-03-23 | 2006-09-28 | Ibai, S.Coop. | Clothes-smoothing and drying wardrobe |
WO2006100334A1 (en) * | 2005-03-23 | 2006-09-28 | Ibai, S.Coop. | Clothes-smoothing and drying wardrobe |
ES2263373A1 (en) * | 2005-03-23 | 2006-12-01 | Ibai, S. Coop. | Clothes-smoothing and drying wardrobe |
ES2279674A1 (en) * | 2005-03-23 | 2007-08-16 | Ibai, S. Coop. | Clothes-smoothing and drying wardrobe |
CN103485142A (en) * | 2013-07-26 | 2014-01-01 | 无锡小天鹅股份有限公司 | Clothes drying machine |
Also Published As
Publication number | Publication date |
---|---|
ATE384817T1 (en) | 2008-02-15 |
EP1660712B1 (en) | 2008-01-23 |
DE602004011533D1 (en) | 2008-03-13 |
CN100564657C (en) | 2009-12-02 |
TR200602026T1 (en) | 2007-02-21 |
EP1660712A1 (en) | 2006-05-31 |
CN1863960A (en) | 2006-11-15 |
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