EP2716809A2 - Elektrisches Haushaltsgerät zum Waschen und Trocknen von Wäsche - Google Patents
Elektrisches Haushaltsgerät zum Waschen und Trocknen von Wäsche Download PDFInfo
- Publication number
- EP2716809A2 EP2716809A2 EP13187574.2A EP13187574A EP2716809A2 EP 2716809 A2 EP2716809 A2 EP 2716809A2 EP 13187574 A EP13187574 A EP 13187574A EP 2716809 A2 EP2716809 A2 EP 2716809A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- compartment
- household appliance
- tank
- electrical household
- channel
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 46
- 238000001035 drying Methods 0.000 title claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000002826 coolant Substances 0.000 claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000003599 detergent Substances 0.000 claims description 4
- 239000008237 rinsing water Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002979 fabric softener Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- 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
- 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
- D06F2103/18—Washing liquid 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
- D06F2105/02—Water supply
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
Definitions
- the present invention relates to an electrical household appliance for washing and drying linen (more commonly known as a washing machine) equipped with a water storage tank.
- washing machines of the traditional type are electrical household appliances comprising:
- the washing compartment is connected to counterweights (usually made of concrete) whose function is to stabilise the washing machine reducing the vibrations transmitted by the oscillating unit to the remaining parts of the washing machine frame.
- some existing washing machines further comprise a water storage tank, connected to the drum in order to receive therefrom the linen rinsing water.
- This rinsing water is then stored in the tank to then be reused in the subsequent washing cycle.
- a drawback of this washing machine is the need to filter the rinsing water once it has already come into contact with the linen to be washed and could therefore be dirty or contain textile residues detached from the linen and/or residues of undissolved detergent.
- This washing machine is therefore equipped with special filters which, as well as defining additional costs, also require periodic maintenance.
- Dryers are also known comprising a drying compartment comprising a conduit for extracting a gaseous fluid from the drying compartment.
- a condenser is placed which determines the condensation of the particles of vapour carried by the fluid extracted from the drying compartment.
- Downstream of the condenser there is a suction impeller which draws the fluid contained in the drying compartment.
- Downstream of the impeller there is a conduit for re-introducing the gaseous fluid into the drying compartment.
- a drawback of such a dryer is connected with the consumption of the coolant water circulating in the condenser in order to determine the condensation of the vapour contained in the gaseous fluid.
- the technical task of the present invention is therefore to provide an electrical household appliance for washing and drying linen that obviates the above-described drawbacks.
- the object of the present invention is to provide an electrical household appliance for washing and drying linen with greater construction simplicity and lower maintenance costs and times.
- a further object of the present invention is to provide an electrical household appliance for washing and drying linen that enables the optimisation of water saving and also the energy for heating it.
- no. 1 indicates an electrical household appliance for washing and drying linen.
- an electrical household appliance is known as a washer-dryer. It has the possibility to wash and subsequently dry linen.
- the electrical household appliance 1 comprises a compartment 2. Such compartment is a drying compartment. It coincides with the washing compartment. In technical jargon such compartment 2 is also called a tank.
- the compartment 2 contains a drum 90 intended to house the linen to be dried and/or washed. The drum 90 indicated above is therefore intended to contain the linen during a drying cycle and during a washing cycle.
- the electrical household appliance 1 comprises a door 200 for accessing the drum 90; the door 200 contributes to delimiting the compartment 2.
- the electrical household appliance 1 further comprises a circulation line 3 which takes the gaseous fluid from the compartment 2 and re-introduces it into said compartment 2. Preferably, but not necessarily, the circulation line 3 develops starting from an end wall 201 opposite the door 200.
- the electrical household appliance 1 comprises a condenser 4 which enables the condensation of at least a part of the vapour contained in the gaseous fluid.
- the circulation line 3, downstream of the condenser 4 with respect to the flow of the gaseous fluid, preferably comprises a conduit for re-introducing the gaseous fluid into the compartment 2.
- the electrical household appliance 1 comprises means for heating the gaseous fluid (typically an electrical element).
- the electrical household appliance 1 Normally along the re-introduction conduit the electrical household appliance 1 comprises means 11 for moving the gaseous fluid (typically a fan that aspirates the gaseous fluid from the compartment 2 through the condenser 4 and re-introduces it into the compartment 2 through the re-introduction conduit).
- the gaseous fluid typically a fan that aspirates the gaseous fluid from the compartment 2 through the condenser 4 and re-introduces it into the compartment 2 through the re-introduction conduit.
- the condenser 4 comprises:
- the condenser 4 is preferably made of plastic.
- the condenser 4 preferably comprises a first and a second arm 12, 13, which develop from a common connection zone.
- the condenser 4 is therefore shaped like an "L".
- the first arm 12 comprises an inlet 120 of the gaseous fluid into the condenser 4
- the second arm 13 comprises an outlet 130 of the gaseous fluid from the condenser 4.
- the second channel 42 develops along the first arm 12.
- the first channel 41 also develops along the second arm 13 (as well as in the first arm 12).
- the portion of the condenser 4 which delimits said first channel 41 is advantageously a single part.
- the electrical household appliance 1 further comprises a tank 5 for storing a liquid (it is a liquid that will then be used to wash the linen).
- a liquid it is a liquid that will then be used to wash the linen.
- the tank 5 is made of plastic.
- such a tank 5 has a capacity of over 10 litres, preferably over 15 litres (for the linen drying process up to 40 litres of water can be used).
- the electrical household appliance 1 comprises first hydraulic connection means 6 active at least between the second passing channel 42 and said tank 5 for performing a transfer of the liquid from the second passing channel 42 to the tank 5. This enables the coolant liquid transiting in the second channel 42 to be stored, in order to be used as a washing liquid.
- the first connection means 6 comprise a conduit.
- the electrical household appliance 1 comprises a discharge conduit 8 of the electrical household appliance.
- the discharge conduit 8 is a conduit that enables the evacuation of the washing liquid contained in the compartment 2.
- the tank 5 comprises an overflow 80 which directs the excess liquid contained in the tank 5 towards the discharge conduit 8 of the electrical household appliance 1 (by-passing the compartment 2).
- the excess coolant liquid used in a drying cycle is higher than the volume of the tank 5, at least the excess coolant liquid must be disposed of (or alternatively recirculated - potentially after further cooling - in the second passing channel 42).
- first hydraulic connection means 6 comprise a valve which:
- the electrical household appliance 1 further comprises a bin 10 for introducing a detergent.
- a bin 10 for introducing a detergent.
- Such bin 10 allows the introduction of washing agents (actual detergent, fabric softener, bleach, etc.) needed during the implementation of a washing cycle.
- bin 10 is integrated into an extractable drawer (not illustrated in the attached figures).
- the electrical household appliance 1 comprises means 9 for feeding the washing liquid contained in the tank 5 into the compartment 2.
- the feeding means 9 comprise:
- the electrical household appliance 1 further comprises introduction means into the compartment 2 of mains water (typically solenoid valves).
- the electrical household appliance 1 comprises sensor means operatively associated with the introduction means.
- the introduction means of the mains water are activated when a first predetermined condition arises.
- the sensor means may comprise a pressure switch operatively associated with the tank 5; in that case the first predetermined condition corresponds to the detection of a level in the tank 5 lower than a predetermined value at the start of a washing cycle.
- the sensor means comprise a pressure switch associated with the compartment 2.
- the level present in the compartment 2 can be determined after the transfer into said compartment 2 of at least a part of the liquid contained in the tank 5.
- the first condition corresponds to the detection in the compartment 2 of a level lower than a predetermined value (by way of non-limiting example the first condition could also coincide with the detection of an increase in the level lower than a predetermined value).
- the electrical household appliance 1 could implement a procedure which envisages:
- the condenser 4 may partly coincide with the second channelling means 92.
- the condenser 4 it could be of various kinds.
- the condenser 4 comprises two overlapping metal sheets comprising a first zone in which they are in contact and a second zone in which they are spaced out to enclose between them at least one stretch of the second passing channel 42 of the coolant fluid.
- the two metal sheets are unamovably connected to each other (according to a technique known as "roll-bond"). They are preferably made of aluminium.
- the condenser 4 comprises a removable door 14 for the access/protection of said two metal sheets (in Figure 7 a space 15 is highlighted in which the two sheets connected with the roll-bond technique are intended to be positioned; during the assembly of the two metal sheets the bulkhead indicated by reference number 16 is removed so as to allow direct contact of the gaseous fluid contained in the first channel 41 with at least one of said two metal sheets).
- the second passing channel 42 of the coolant fluid is a winding shape in order to improve the heat exchange with the gaseous fluid contained in the first channel 41.
- At least one of said metal sheets contributes to defining said first passing channel 41 of the gaseous fluid.
- at least one of the metal sheets is licked by said gaseous fluid.
- both the metal sheets are licked by said gaseous fluid (in particular two opposite faces of a body defined by joining the two metal sheets are licked).
- the electrical household appliance 1 comprises second hydraulic connection means 7 active at least between the first passing channel 41 of the gaseous fluid and the compartment 2 to create a transfer of the condensed vapour from said first passing channel 41 to the compartment 2 to allow the subsequent evacuation through the discharge conduit 8 (the second means 7 are only partly visible in Figure 8 ).
- the condensed vapour could return directly into the compartment 2 running backwards along the circulation line 3.
- the electrical household appliance 1 could comprise a conduit that places the circulation line 3 in communication with the discharge conduit 8 of the electrical household appliance 1 by-passing the drying compartment 2.
- the tank 5 rinsing water coming from the compartment 2 and/or condensed water coming out of the first channel 41 can also be stored. In that case the water may be appropriately filtered before introduction into the tank 5.
- An operating method of the electrical household appliance 1 comprises the following steps:
- the invention thus conceived enables multiple advantages to be attained.
- a second advantage is connected with the fact that the coolant liquid is clean water and therefore does not need to be filtered before being placed in the tank. This enables the use of filters to be avoided (which imply a cost and require maintenance). Furthermore, it prevents (as happens in traditional washing machines) the water stored in the tank previously coming into contact with linen being washed and therefore being potentially dirty and containing textile fibres that have detached from the linen. Another important advantage is connected with energy saving.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Detergent Compositions (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000005U ITPR20120005U1 (it) | 2012-10-08 | 2012-10-08 | Elettrodomestico di lavaggio e asciugatura di panni. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2716809A2 true EP2716809A2 (de) | 2014-04-09 |
EP2716809A3 EP2716809A3 (de) | 2018-01-03 |
EP2716809B1 EP2716809B1 (de) | 2018-12-12 |
Family
ID=48046950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13187574.2A Active EP2716809B1 (de) | 2012-10-08 | 2013-10-07 | Elektrisches Haushaltsgerät zum Waschen und Trocknen von Wäsche |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2716809B1 (de) |
IT (1) | ITPR20120005U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2775028A3 (de) * | 2013-03-05 | 2015-02-25 | Samsung Electronics Co., Ltd | Wäschebehandlungsvorrichtung |
WO2020015513A1 (zh) * | 2018-07-19 | 2020-01-23 | 青岛海尔滚筒洗衣机有限公司 | 一种洗干一体机用冷凝器及洗干一体机的控制方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1308701B1 (it) * | 1999-02-16 | 2002-01-10 | Iar Siltal Spa | Macchina di lavaggio combinata |
EP2149635B1 (de) * | 2008-08-01 | 2013-11-27 | Electrolux Home Products Corporation N.V. | Waschmaschine und Wäschetrockner mit integriertem Kondensator für den Waschteil |
EP2241663B1 (de) * | 2009-04-15 | 2013-03-20 | Electrolux Home Products Corporation N.V. | Wasch- und Trockenmaschine sowie Betriebsverfahren dafür |
ITRN20110054A1 (it) * | 2011-08-05 | 2013-02-06 | Indesit Co Spa | Elettrodomestico |
-
2012
- 2012-10-08 IT IT000005U patent/ITPR20120005U1/it unknown
-
2013
- 2013-10-07 EP EP13187574.2A patent/EP2716809B1/de active Active
Non-Patent Citations (1)
Title |
---|
None |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2775028A3 (de) * | 2013-03-05 | 2015-02-25 | Samsung Electronics Co., Ltd | Wäschebehandlungsvorrichtung |
WO2020015513A1 (zh) * | 2018-07-19 | 2020-01-23 | 青岛海尔滚筒洗衣机有限公司 | 一种洗干一体机用冷凝器及洗干一体机的控制方法 |
Also Published As
Publication number | Publication date |
---|---|
ITPR20120005U1 (it) | 2014-04-09 |
EP2716809B1 (de) | 2018-12-12 |
EP2716809A3 (de) | 2018-01-03 |
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