WO2011069870A1 - Appareil de traitement du linge présentant une fonction séchage et son procédé de commande - Google Patents

Appareil de traitement du linge présentant une fonction séchage et son procédé de commande Download PDF

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Publication number
WO2011069870A1
WO2011069870A1 PCT/EP2010/068641 EP2010068641W WO2011069870A1 WO 2011069870 A1 WO2011069870 A1 WO 2011069870A1 EP 2010068641 W EP2010068641 W EP 2010068641W WO 2011069870 A1 WO2011069870 A1 WO 2011069870A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling water
temperature
water
inlet valve
laundry
Prior art date
Application number
PCT/EP2010/068641
Other languages
English (en)
Inventor
Linjie Shen
Zhangying Song
Chaoping Xia
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2011069870A1 publication Critical patent/WO2011069870A1/fr

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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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • 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
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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

Definitions

  • the present invention relates to a laundry processing appliance and a control method thereof, in particular, to a laundry processing appliance having a drying function and a control method thereof.
  • the process air after cooling and condensation forms low-temperature and dry air, and then the low-temperature and dry air is heated by the heater again to repeat the above procedure, and finally, the moisture in the laundry is all taken away, achieving the objective of drying the laundry to a desired dryness thereby.
  • the circulation of the process air is driven through the operation of a blower.
  • the water inflow of the cooling water entering the washer- dryer is a constant value at present.
  • different stages of a drying process different laundry conditions and different external environments require different quantities of the cooling water to perform the drying process as desired.
  • different stages of the drying process require different quantities of the cooling water.
  • the process air temperature is low and the evaporation efficiency is low, so that the moisture content of the process air after exchange with the laundry is low, and accordingly a small quantity of the cooling water is required only.
  • the process air temperature has been heated to a certain temperature, the evaporation efficiency is increased, and the moisture content of the process air is increased, so that the required quantity of the cooling water is increased.
  • the evaporation efficiency is reduced and the moisture content of the process air turns low again, so that the required quantity of the cooling water is reduced.
  • the amount and type of laundry affects the required quantity of the cooling water.
  • the weight, texture and initial moisture content of the laundry to be dried are different, the evaporation efficiency in the drying procedure is also different, so that the requirement on the condensing quantity is different, and accordingly the quantity of the cooling water is also different.
  • the initial temperature of the cooling water also affects the required quantity of the cooling water.
  • the cooling water with different temperatures has different capabilities of condensing the vapour in the moist hot air, so the initial temperature of the cooling water also affects the required quantity of the cooling water even if the requirement on the condensing quantity is the same.
  • the supply of the cooling water at a constant flow rate fails to inlet water according to actual requirements. Either the supply of the cooling water is excessive, thus causing the waste of water, or the supply of the cooling water is insufficient, so that a desirable drying effect cannot be achieved, or the drying effect can only be achieved by prolonging the drying duration which increases the power consumption.
  • a control method of a laundry processing appliance having a drying function comprising: performing a drying operation on laundry by circulating process air; and supplying a cooling water, so as to condense moisture carried in the process air to condensed water, wherein the method further comprises controlling a water inflow of the cooling water according a temperature of the condensed water.
  • the water inflow of the cooling water is decreased; and when the temperature of the condensed water is higher than the preset temperature, the water inflow of the cooling water is increased.
  • the water inflow of the cooling water is controlled by adjusting an open and close rhythm of an inlet valve of the cooling water.
  • the open and close rhythm of the inlet valve of the cooling water is controlled through an open or close duration of the inlet valve.
  • the open duration of the inlet valve of the cooling water is modified to the first set open duration, and when the determined open duration of the inlet valve of the cooling water is larger than a second set open duration, the open duration of the inlet valve of the cooling water is the actually determined open duration.
  • the first set open duration is 20 seconds
  • the second set open duration is 60 seconds.
  • Another objective of the present invention is to provide a laundry processing appliance having a drying function, so that when the laundry processing appliance performs a drying operation, the cooling water can be supplied according to actual requirements, and thus the consumption of the cooing water in the drying procedure is reduced while ensuring a desirable drying effect, thereby saving water resources.
  • a laundry processing appliance having a drying function, comprising a drying system performing a drying operation on laundry, wherein the drying system comprises an air circulation system for promoting heat exchange between circulating air and the laundry, a condensing system for condensing humidity from the air after the heat exchange, and a cooling water supply system to supply cooling water for the condensing system, wherein control means for controlling the cooling water supply according to a temperature of a condensed water formed by the condensing system and a temperature detecting device for detecting the temperature of the condensed water are provided.
  • the temperature detecting device is disposed in a drainage pipe of the laundry processing appliance.
  • the laundry processing appliance further includes a preset relation table of the temperature of the condensed water and a parameter of controlling the water inflow of the cooling water.
  • the parameter of controlling the water inflow of the cooling water is a time parameter controlling the inlet valve of the cooling water to open or close.
  • the beneficial effects of the present invention include those specified as follows.
  • the temperature of the cooling water is detected by the temperature detecting device, and then the water inflow of the cooling water is accurately controlled according to the detected temperature, which implements a technology for controlling the water inflow of the cooling water, achieves the water supply according to actual requirements, and technically optimizes the water-cooling drying technology, thereby saving water resources and reducing the power consumption of the appliance while ensuring a desirable drying effect of the appliance.
  • the embodiments described are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, for example, the present invention is also applicable to a laundry processing appliance having a drying function that uses a mixture of air and water or uses air for condensation. It should be understood by persons of ordinary skill in the art that any equivalent modification made based on the teachings of the present invention shall fall within the scope of the present invention as defined by the appended claims.
  • FIG. 1 is a schematic system view of a laundry processing appliance having a drying function according to an embodiment of the present invention
  • FIG. 2 is a schematic view of a laundry processing appliance having a drying function according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a control method of the laundry processing appliance shown in FIG. 2.
  • a laundry processing appliance having a drying function 1 includes a drying system 2 performing a drying operation on laundry.
  • the drying system 2 includes an air heating and circulation system 3 for heating air and promoting heat exchange between the air and the laundry, and a condensing system 4 for condensing the air after the heat exchange.
  • the laundry processing appliance 1 further includes a cooling water supply system 5 controlled according to a temperature of a condensed water formed by the condensing system 4 to supply a cooling water for the condensing system 4.
  • the laundry processing appliance 1 having a drying function according to the present embodiment may be a washer-dryer, or a dryer only having the drying function. Referring to FIGs.
  • the air heating and circulation system 3 includes a drum 6 capable of rotating at a high rate about a horizontal shaft or a rotating shaft inclined at an angle when driven by an electric motor, a tub 7 receiving the drum 6, a heating pipe component 8 disposed on the top of the tub 7, and a blower device 9 for promoting the air circulation.
  • a heating device 10 for heating the process air is disposed in the heating pipe component 8, and the condensing system 4 includes a condensing device 1 1 disposed behind the tub 7.
  • One end of the heating pipe component 8 is connected to the tub 7, and the other end is connected to the condensing device 1 1 through the blower device 9.
  • the heating pipe component 8, the tub 7, the drum 6, the condensing device 1 1 and the blower device 9 form a closed air circulation loop.
  • the cooling water supply system 5 is disposed between the condensing device 1 1 and the blower device 9, so that the cooling water is supplied to the condensing system 4, and the cooling water supply system 5 is controlled by opening and closing an inlet valve 12 in a given rhythm.
  • the process air is first heated by the heating device 10 to form hot dry air with a high temperature, and then is supplied to the drum 6 to fully contact and exchange heat with the wet laundry put by a user ito the drum 6 so as to form hot air with high moisture and low temperature.
  • the process air is fully mingled with the laundry, and thus the moisture in the laundry is absorbed by the process air and then is drained into the condensing system 4 through an air vent on the tub 7 for condensation by the condensing device 1 1.
  • the hot air with high moisture and low temperature exchanges heat with the cooling water supplied by the cooling water supply system 5 to form hot air with low moisture and low temperature, which is heated again by the heating device 10 under the action of the blower device 9 to enter a next circulation, and the circulation is repeated to dry the moisture carried in the laundry, and finally the drying procedure is achieved.
  • a temperature detecting device 14 is disposed on an appropriate position of the corrugated drainage pipe 13. During the execution of the drying program, the temperature detecting device 14 detects a temperature of the condensed water flowing through the corrugated drainage pipe 13, and the temperature of the condensed water to reflect the condensing effect.
  • the supply of the cooling water is controlled through the inlet valve 12, when it is required to increase the supply of the cooling water, the inlet valve 12 is opened to inlet the water, and when it is required to reduce the supply of the cooling water, the inlet valve 12 is closed or partly closed.
  • a corresponding relation exists between the temperature of the condensed water and the water inflow of the cooling water, and therefore, a corresponding relation table between the temperature of the condensed water and a control rhythm of the inlet valve of the cooling water can be obtained according to experimental results (as shown in FIG. 1 ) and stored in the control means 15 provided in the appliance 1 for interfacing with the user and process control.
  • control means 15 directly obtains the control rhythm of the inlet valve 12 from the corresponding relation table according to the temperature of the condensed water detected by the temperature detecting device 14, that is, required open/close duration of the inlet valve 12.
  • the open duration of the inlet valve 12 is modified to the first set open duration, that is, the open duration is 20 seconds, and when the determined open duration of the inlet valve 12 is larger than a second set open duration, for example, 60 seconds, the open duration of the inlet valve 12 is the actually determined open duration.
  • FIG. 3 illustrates a control method of the laundry processing appliance 1 having a drying function according to the embodiment shown the Figures described above.
  • a user selects a certain drying program, it is first judged whether the selected program is a program of timed 15-minute drying, and if yes, the cooling stage is directly entered; otherwise, a timed drying program is entered.
  • the temperature detecting device 14 continuously detects the temperature of the condensed water in the drainage pipe 13, and then a corresponding open/close duration of the inlet valve 12 is determined in the relation table between the temperature of the condensed water and the control rhythm of the inlet valve 12 according to the detected temperature value, so as to control the rhythm of the inlet valve 12. The above procedure is repeated until the cooling procedure is entered.
  • the water inflow of the cooling water is accurately controlled, thereby avoiding the drawback of low drying efficiency and increased energy consumption due to insufficient supply of the cooling water, and avoiding unnecessary waste of water resources due to excessive supply of the cooling water.

Abstract

La présente invention concerne un appareil de traitement du linge (1) présentant une fonction séchage et son procédé de commande. L'appareil de traitement du linge (1) comprend un système de séchage (2) effectuant une opération de séchage sur le linge, le système de séchage (2) comprenant un système de circulation d'air (3, 9) servant à favoriser l'échange de chaleur entre l'air en circulation et le linge, un système de condensation (5, 11) servant à condenser l'humidité provenant de l'air après l'échange de chaleur, et un système d'apport en eau de refroidissement (5, 12) destiné à apporter de l'eau de refroidissement au système de condensation (5, 11). En outre, l'appareil (1) comprend un moyen de commande (15) servant à commander le système d'apport en eau de refroidissement (5, 12) selon une température d'une eau condensée formée par le système de condensation (5, 11) et un dispositif de détection de température (14) servant à détecter la température de l'eau condensée, ce qui permet de garantir un effet séchant souhaitable et d'éviter un gaspillage inutile des ressources en eau.
PCT/EP2010/068641 2009-12-11 2010-12-01 Appareil de traitement du linge présentant une fonction séchage et son procédé de commande WO2011069870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910259173.4 2009-12-11
CN2009102591734A CN102094309A (zh) 2009-12-11 2009-12-11 带有烘干功能的衣物处理设备及其控制方法

Publications (1)

Publication Number Publication Date
WO2011069870A1 true WO2011069870A1 (fr) 2011-06-16

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WO (1) WO2011069870A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2844794A4 (fr) * 2012-05-03 2015-10-28 Lg Electronics Inc Machine de traitement de linge et procédé de commande de celle-ci
EP2998433A1 (fr) * 2014-09-18 2016-03-23 BSH Hausgeräte GmbH Sèche-linge et procédé de séchage associé

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3192912A1 (fr) * 2016-01-14 2017-07-19 BSH Hausgeräte GmbH Sèche-linge avec un circuit d'eau de refroidissement
CN107574643B (zh) * 2016-07-05 2020-12-25 青岛海尔滚筒洗衣机有限公司 一种根据加热器控制周期调节冷凝介质量的方法
CN110453468B (zh) * 2018-05-08 2022-01-04 青岛海尔洗涤电器有限公司 一种衣物处理装置及控制方法
CN111851020B (zh) * 2019-04-16 2023-11-03 无锡小天鹅电器有限公司 衣物处理装置及控制方法、控制设备、存储介质和门组件
CN112301645B (zh) * 2020-07-13 2022-10-11 湖北美的洗衣机有限公司 衣物处理设备的控制方法、装置、设备及存储介质
CN112458718B (zh) * 2020-09-04 2021-12-21 珠海格力电器股份有限公司 一种衣物处理设备及其烘干控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522307A1 (de) * 1995-06-20 1997-01-02 Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Wasch- oder Geschirrspülmaschine
EP0829569A2 (fr) * 1996-09-13 1998-03-18 Kabushiki Kaisha Toshiba Machine à laver et à sécher
EP1657341A2 (fr) * 2004-11-12 2006-05-17 LG Electronics Inc. Procédé et dispositif de commande d'un processus de séchage dans une machine à laver et à sécher
EP1698722A1 (fr) * 2005-03-04 2006-09-06 Samsung Electronics Co., Ltd. Machine à laver et son procédé d'élimination de mousse
EP1961853A1 (fr) * 2005-11-17 2008-08-27 Kabushiki Kaisha Toshiba Seche-linge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522307A1 (de) * 1995-06-20 1997-01-02 Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Wasch- oder Geschirrspülmaschine
EP0829569A2 (fr) * 1996-09-13 1998-03-18 Kabushiki Kaisha Toshiba Machine à laver et à sécher
EP1657341A2 (fr) * 2004-11-12 2006-05-17 LG Electronics Inc. Procédé et dispositif de commande d'un processus de séchage dans une machine à laver et à sécher
EP1698722A1 (fr) * 2005-03-04 2006-09-06 Samsung Electronics Co., Ltd. Machine à laver et son procédé d'élimination de mousse
EP1961853A1 (fr) * 2005-11-17 2008-08-27 Kabushiki Kaisha Toshiba Seche-linge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2844794A4 (fr) * 2012-05-03 2015-10-28 Lg Electronics Inc Machine de traitement de linge et procédé de commande de celle-ci
EP2998433A1 (fr) * 2014-09-18 2016-03-23 BSH Hausgeräte GmbH Sèche-linge et procédé de séchage associé

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