EP3901352A2 - Gerät zum waschen und trocknen von wäsche - Google Patents

Gerät zum waschen und trocknen von wäsche Download PDF

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Publication number
EP3901352A2
EP3901352A2 EP21167627.5A EP21167627A EP3901352A2 EP 3901352 A2 EP3901352 A2 EP 3901352A2 EP 21167627 A EP21167627 A EP 21167627A EP 3901352 A2 EP3901352 A2 EP 3901352A2
Authority
EP
European Patent Office
Prior art keywords
drying
air
washing
clothes
laundry
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.)
Withdrawn
Application number
EP21167627.5A
Other languages
English (en)
French (fr)
Other versions
EP3901352A3 (de
Inventor
Mario FURIERI
Rosanna Ferri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosemar Srl
Original Assignee
Rosemar Srl
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 Rosemar Srl filed Critical Rosemar Srl
Publication of EP3901352A2 publication Critical patent/EP3901352A2/de
Publication of EP3901352A3 publication Critical patent/EP3901352A3/de
Withdrawn legal-status Critical Current

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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
    • D06F29/00—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus
    • D06F29/005—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus the other separate apparatus being a drying appliance
    • 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
    • D06F2105/28—Electric heating
    • 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
    • D06F2105/32—Air flow control means
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/63—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of air flow, e.g. blowing air during the washing process to prevent entanglement of the laundry
    • 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

Definitions

  • a device for washing and drying clothes products, garments, clothing, sheets, towels, or the like in particular a device for speeding up the washing and drying at home of laundry and garments in general, comprising a household appliance for washing fabrics (washing machine), including an air dehumidification apparatus, useful to speed up the drying of the washed fabrics and put to dry externally to the household appliance itself, preferably hung, thanks to particular hanging tumble dryers, in the space located immediately above the invention; but, above all, indispensable to avoid the formation of condensation and the onset of mould in the room where this drying takes place, characterized in that the drying air produced by this dehumidification apparatus does not pass through the drum of the washing machine but follows an independent path, so as to allow to carry out the washing of a load of laundry placed inside the drum of the invention and, simultaneously, to speed up the drying of another load of laundry previously washed placed outside the drum of the invention.
  • a household appliance for washing fabrics washing machine
  • an air dehumidification apparatus useful to speed up the drying of the washed
  • the object of the present application belongs to the sector of washing and drying of clothes products for predominantly domestic use, i.e., a mini-laundry room located in the walkable surface of the house generally occupied only by the washing machine.
  • the invention is inserted in the field of architecture and interior design, in particular in the field of building structures such as flats, houses or the like, and also tourist or service facilities, where the washing, drying and ironing of laundry, clothing or the like is required, such as hotels, laundromats, wellness centres, etc.
  • Tumble dryers and dryers are two profoundly different products, but despite appearances, they use the same drying technique, a technique that is completely wrong.
  • the dryer introduces very hot air (up to 80°/90°) inside the drum and sends it onto the fabrics.
  • This system allows to reduce considerably the drying time, because the air is an "elastic container” and its capacity to contain water increases as its temperature increases.
  • the fabrics piled up on top of each other, inside the drum considerably reduces their surface in direct contact with the air, for this reason the dryer is forced to continuously send very hot air, which explains the high consumption of electricity of this household appliance.
  • Drying laundry by folding the fabrics generates a second problem: the formation of creases the removal of which requires final ironing.
  • Fabrics behave exactly like our hair, the shape it has after washing it does not depend on how we have washed it but on how we have dried it. If we want straight hair, we will dry it flat, without any styling, but if we want curly hair, we will do the so-called styling, folding it around the curlers. Once dried it will retain the shape acquired during drying.
  • air is an "elastic container” whose capacity varies as its temperature varies.
  • the air is saturated (100% humidity) and the temperature drops, as is the case at night, the "air container” shrinks and the excess water vapour condenses, turning back into liquid water: the droplets that can be seen on the window panes and those on the walls of the room that cannot be seen, because they are absorbed by the plaster.
  • drying racks are not able to produce either the one or the other condition, because, as we have explained, the fabrics, folded on their lines, dry in always too long times and release in the environment all their water.
  • the dryer dries the laundry in a few hours and condenses most of the water removed from the fabrics, without releasing it into the environment, so it should be able to prevent the formation of condensation and the onset of mould, but no, things are quite different.
  • the dryer sucks air from the environment in which it is located and introduces it into the drum, after heating it.
  • the energy label which shows the condensation efficiency class of the dryer, precisely indicates the percentage of water that it is able to condense.
  • a dryer in condensation class "B" in second place out of seven condensation efficiency classes, capable of condensing between 80% and 90% of the water contained in the laundry) releases an average of 500 grams of water (15% of 3,500) into the environment in just two hours, combined with air at high temperature (40/50°). Since, as we have seen, condensation is generated by decreases in air temperature, when said hot, humid (100%) air exits the dryer, it creates a bubble that immediately rises to the top. As it cools down, in contact with the coldest walls of the room (whose temperature generally does not exceed 20°), the water vapour condenses and turns back into water, favouring the onset of mould.
  • Said invention also envisages the use of devices for producing and heating the drying air that allow to further reduce the drying time of the laundry, however it is not able yet, to carry out the drying in very short times (3/4 hours) like those of the dryer, nor to totally avoid the formation of condensation.
  • drying fabrics without ever folding them onto themselves allows to cut drying times by 50% compared to drying racks.
  • Sending an air flow from the top downwards on the fabrics hung to dry, by means of clothes holding hangers, on a clothes hanger arm placed immediately below the drying air production device, allows to further reduce the drying time by consuming very little electricity (about 20 watts for a whole drying cycle).
  • the invention in a preferred embodiment thereof, envisages that its air dehumidification apparatus comprises a drying air inlet located immediately below the plane of the household appliance for washing clothes products, in such a way as to immediately intercept the air loaded with humidity sent from the top downwards by the "Modular Drying Device" fixed to the wall, above the invention, at a height of about one hundred and ninety centimetres from the ground.
  • the humid air, intercepted by the dehumidification apparatus is sent inside the "Device for Washing and Drying Clothes Product" and, without passing through the drum, follows a completely independent path, where the condensation apparatus transforms the water vapour into liquid water, to be eliminated through the same drain channel of the washing apparatus.
  • the dehumidified air is then expelled from a grille located on the rear part of the upper plane of the invention and advantageously oriented, so as to convey the dried air on the lower part of the fabrics hung to dry, the most difficult to dry because far from the sources of aeration and particularly loaded with humidity due to the force of gravity and the effect of ventilation itself that favour the descent of the water contained in the fabrics towards the lower part thereof.
  • the air dehumidification apparatus can contain a device (electric resistance, heat pump, etc.) able to heat the dehumidified air before it is expelled outside through the outlet grille, further increasing the drying efficiency of the invention.
  • a device electrical resistance, heat pump, etc.
  • a more complete version of the present invention envisages that the "Modular Drying Device", in all of its versions, but, in particular, in the version provided with the drying air production system and the retractable and expandable cabinet container, is built as a single piece with the "Device for Washing and Drying Clothes Product" subject matter of the present application, creating a complete domestic laundry room located in the space currently occupied by the washing machine only.
  • This solution makes it possible to avoid having to drill holes in the wall in order to fix the "Modular Drying Device" since it is supported by the "Device for Washing and Drying Clothes Product".
  • a further great advantage of this solution is to be able to provide the invention with a centralized command and control system of all the devices present, capable of allowing the simultaneous switching on of the devices for drying (blowing means, dehumidification system, air heating means) and the devices for washing clothes products (washing machine) capable of controlling, managing and harmonizing their operation without exceeding a certain value of electricity absorption previously set by the user (e.g. 2.5 kWh), so as to avoid the intervention of the limiter in buildings with electricity supply contracts of only 3 kWh, most of those for domestic use. Solution that advantageously allows to dry a load of laundry, previously washed, while a second load of laundry is being washed.
  • Said centralized command and control system of all the drying and washing devices of the clothes products, present in the invention can be advantageously designed to program and manage, in an automatic way and with weekly schedule, the washing and drying of the clothes products in compliance with the times (minutes, hour, day) of the end of washing and the end of drying, set by the user, washing and drying the clothes products with the lowest possible energy consumption.
  • This design can envisage that the invention is provided with sensors capable of detecting the temperature and the relative humidity of the ambient air, the relative humidity of the drying air, after this has lapped the clothes products hung up to dry and that the user can communicate to the program itself, by entering the relative values, some very important data for drying purposes, such as the volumetry (cubic metres of air) of the room where the finding is located, the number of physiological air exchanges in this room and the presence or absence of openings (external windows, internal doors, etc.).
  • a "Device for Washing and Drying Clothes Product” including at least one apparatus for dehumidifying the ambient air, external to the invention, characterized in that said air to be dehumidified does not pass through the drum, as is the case in the dryer, but follows a completely independent path, illustrated in the description below and in the annexed claims which form an integral part of said description.
  • any dimensional and spatial terms refer to the position according to which the elements are substantially arranged under actual conditions.
  • clothes product is to be understood as any item made of natural fabric (cotton, linen, wool, etc.) or artificial fabric (viscose, polyamide, rayon, etc.) such as clothing and other garments.
  • the "Device for Washing and Drying Clothes Product” (1) in the basic version, comprises a household appliance for washing clothes products (10) containing at least one device for dehumidifying (11) the air, in practice a washer-dryer, in which the air to be dehumidified follows a path completely independent from the drum, because the laundry is not dried inside the drum of the household appliance, but outside it and preferably above it, hung to dry, by means of clothes holding hangers, on the clothes hanger arm of the "Modular Drying Device", subject matter of our patent application no. 1020200007822 dated 14/04/2020 .
  • the dehumidification device (11), according to a preferred embodiment, is located in the upper part of the household appliance and comprises an intake grille (12) of the air to be dehumidified, located in front of and immediately below the upper plane of the washing device (10); the best position to intercept the flow of humid air (120) sent from the top downwards by the "Modular Drying Device".
  • the outlet grille (13) of the dehumidified air, of said dehumidification device (11), is instead positioned on the rear part, above the upper plane of the washing device (10), and advantageously oriented towards the front part, in order to send the flow of dehumidified air (130) directly on the lower part of the products, which is the most difficult part to dry because it is far from the sources of aeration and particularly full of humidity due to the force of gravity and the effect of the ventilation itself that favour the descent of the water contained in the fabrics towards the lower part thereof.
  • More complete versions of the invention are obtained by providing the invention with a load-bearing structure (14) capable of accommodating and supporting, by means of appropriate slots (141), other apparatus and devices useful for speeding up the drying of the just washed laundry.
  • a device (100) specially designed to dry clothes products without ever folding them on themselves by hanging them, by means of clothes holding hangers, to a telescopic clothes hanger arm.
  • An apparatus (101) for producing drying air capable of sending a flow of air from top to bottom on the laundry hanging to dry on the telescopic clothes hanger arm.
  • a retractable and expandable cabinet container (102) ( Figure 4 ) that is able to hide the laundry hanging to dry from view, but, above all, to maximize the efficiency of the drying air production system by avoiding the dispersion of the air flow that, in this case, is completely sent to the fabrics closed in its inside. Even more advantageously said flow of humid air coming out (120) from the cabinet container (102) is immediately intercepted by the inlet grille (12) of the dehumidification system, thus maximizing the efficiency of this apparatus as well.
  • the dehumidified air is then expelled (130) from the outlet grille (13) of the dehumidification apparatus (11) and sent directly on the lower part of the fabrics hung to dry inside the cabinet container (102), a solution that advantageously allows to avoid the dispersion of this second drying air flow as well.
  • the dehumidification apparatus (11) may comprise devices (resistances, heat pump, etc.) that allow heating the dehumidified air, to be sent to the fabrics, further reducing the drying time of the laundry.
  • Said smart centralized command and control system of all the drying and washing devices of the clothes products, present in the invention is advantageously designed to program and manage, in an automatic way and with weekly schedule, the washing and drying of the clothes products in compliance with the times (minutes, hour, day) of the end of washing and the end of drying, set by the user, washing and drying the clothes products with the lowest possible energy consumption.
  • the invention is provided with sensors able to detect the temperature and the relative humidity of the ambient air, outside the cabinet container, and with sensors to detect the humidity of the clothes products hanging to dry.
  • Said smart centralized command and control system envisages that the user can communicate to the program, by entering the relative values, some very important data for drying purposes, such as the volumetry (cubic metres of air) of the room where the invention is located, the number of physiological air exchanges of said room and the presence or absence of openings (external windows, internal doors, etc.). These data are essential for the smart centralized command and control system of the devices, in order to correctly predict the drying times of the clothes products hung up to dry inside the room where the invention is located.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Cleaning In General (AREA)
EP21167627.5A 2020-04-20 2021-04-09 Gerät zum waschen und trocknen von wäsche Withdrawn EP3901352A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000008398A IT202000008398A1 (it) 2020-04-20 2020-04-20 Dispositivo per il lavaggio e l'asciugatura di manufatti in tessuto

Publications (2)

Publication Number Publication Date
EP3901352A2 true EP3901352A2 (de) 2021-10-27
EP3901352A3 EP3901352A3 (de) 2022-01-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21167627.5A Withdrawn EP3901352A3 (de) 2020-04-20 2021-04-09 Gerät zum waschen und trocknen von wäsche

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EP (1) EP3901352A3 (de)
IT (1) IT202000008398A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118854628A (zh) * 2023-04-17 2024-10-29 青岛海尔洗衣机有限公司 一种具有折叠衣架的洗衣机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200283184Y1 (ko) 2002-04-30 2002-07-26 엘지전자 주식회사 나사 고정용 홀더
EP2660381A1 (de) 2009-06-29 2013-11-06 Electrolux Home Products Corporation N.V. Vorrichtung zum Wäschetrocknen
WO2018217033A1 (ko) 2017-05-24 2018-11-29 엘지전자 주식회사 세탁물 처리기기
KR20200007822A (ko) 2017-05-19 2020-01-22 디에스엠 아이피 어셋츠 비.브이. 고형 입자

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2196573B1 (de) * 2008-12-12 2013-04-24 Electrolux Home Products Corporation N.V. Haushaltsgerät mit Ablagefläche für die Dampfbehandlung von Wäschestücken
EP2204487A1 (de) * 2008-12-30 2010-07-07 Electrolux Home Products Corporation N.V. Haushaltsgerät zum Trocknen von Kleidungsstücken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200283184Y1 (ko) 2002-04-30 2002-07-26 엘지전자 주식회사 나사 고정용 홀더
EP2660381A1 (de) 2009-06-29 2013-11-06 Electrolux Home Products Corporation N.V. Vorrichtung zum Wäschetrocknen
KR20200007822A (ko) 2017-05-19 2020-01-22 디에스엠 아이피 어셋츠 비.브이. 고형 입자
WO2018217033A1 (ko) 2017-05-24 2018-11-29 엘지전자 주식회사 세탁물 처리기기

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118854628A (zh) * 2023-04-17 2024-10-29 青岛海尔洗衣机有限公司 一种具有折叠衣架的洗衣机

Also Published As

Publication number Publication date
IT202000008398A1 (it) 2021-10-20
EP3901352A3 (de) 2022-01-12

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