EP2925924A2 - Machine à laver à chargement frontal ayant un système de séchage incorporé - Google Patents

Machine à laver à chargement frontal ayant un système de séchage incorporé

Info

Publication number
EP2925924A2
EP2925924A2 EP13848141.1A EP13848141A EP2925924A2 EP 2925924 A2 EP2925924 A2 EP 2925924A2 EP 13848141 A EP13848141 A EP 13848141A EP 2925924 A2 EP2925924 A2 EP 2925924A2
Authority
EP
European Patent Office
Prior art keywords
air
condensation
washing
machine according
drum
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
Application number
EP13848141.1A
Other languages
German (de)
English (en)
Other versions
EP2925924B1 (fr
Inventor
Walter Emilio GARLATTI
Gianfranco Bacelli
Simone GIARDINIERI
Lorenzo AMICUCCI
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.)
Meccanica Generale SRL
Original Assignee
Meccanica Generale 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 Meccanica Generale SRL filed Critical Meccanica Generale SRL
Publication of EP2925924A2 publication Critical patent/EP2925924A2/fr
Application granted granted Critical
Publication of EP2925924B1 publication Critical patent/EP2925924B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/265—Counterweights mounted to the tub; Mountings 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • 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
    • D06F2105/26—Heat pumps
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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 
    • D06F58/206—Heat pump 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting 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
    • 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
    • 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

Definitions

  • the invention can be applied in the front load laundry washing machine industry preferably for domestic use, in particular it refers to a front load washing machine which besides washing is also capable of drying the laundry; in other words the action of drying the laundry is not provided with separate devices, but it is provided by the machine which performs the washing.
  • the machine incorporates - therein - an advantageous drying system, described hereinafter.
  • front load laundry washing machines for domestic use, comprising a door adapted to close the loading opening of a rotary drum in a washing tub; the laundry to be washed is introduced into the drum through the door.
  • the door usually comprises a transparent inspection hole which allows the user an inner view of the rotary drum and the laundry introduced thereinto.
  • Washer/dryer machines are also known.
  • a washer/dryer machine is a domestic appliance which combines the washing cycle to the drying one.
  • the washing cycle is identical to that of the washing machines, while the drying one is characterized in that:
  • a patent document EP2270276 is known, which describes a laundry washer/dryer appliance that combines the features of a washing machine with those of a dryer.
  • a laundry drying appliance comprising a cabinet having a top, a rotating drum accommodated within a tub housed in the cabinet, and a laundry drying air circulation system for circulating drying air.
  • the drying air circulation system of EP2270276 comprises a drying air return duct through which drying air coming from drum flows, the drying air return duct having an outlet, and a drying air delivery duct through which the drying air is sent back to the drum, the drying air delivery duct having an inlet.
  • the top forms a ready-to-mount moisture condensing module ready to be mounted to the cabinet for dehydrating drying air used to dry laundry within the drying drum of the laundry drying appliance.
  • a non-linear air path for the drying air is defined in the base element by means of a series of walls.
  • moisten-laden drying air coming from the drum and the tub through the return air duct, and entering into the top through the opening is initially caused to flow essentially parallel to the left side of the top, from the rear to the front, and to pass through an air defluff filter that is removably accommodated within a respective filter seat formed in the base element.
  • the drying air passes through a moisture condenser comprising an air-air heat exchanger, so as to be cooled down and release moisture in the form of condense water.
  • drying recirculation system is considered to be an add-on to the detriment of the standardisation of the dimensions of a standard machine; in the case in question, i.e. the invention, the system is not to the detriment of the dimensions given that it is contained in the standard measurements.
  • EP2339063 and EP2436818 describe a drying machine with a housing provided with an internal space for accommodating various devices such as the rotating drum, the water tank and a heat pump device.
  • the machine comprises an air ventilation circulatory system flue which communicates the water tank and the heat pump device.
  • the circulatory ventilation flue includes an upstream ventilation flue extending upward from the exhaust outlet, and a downstream ventilation flue connected to the bottom wall of the water tank.
  • the washing and drying machine further comprises a filter disposed between the upstream ventilation flue and the heat pump device.
  • the filter connected to the upstream ventilation flue removes lint (dust components) in the dry air.
  • An object of the present invention is to overcome the aforementioned drawbacks by providing the art with a front load washing machine with incorporated drying system, with a heat pump, still maintaining the advantage of performing the washing and the drying within the dimensions i.e. the standard overall size for the machines in question.
  • a laundry washing machine comprising, besides the washing system, a drying system with a dehumidification cycle circuit adapted to condensate the moist air extracted from the washing tub and subsequently reintroduced thereinto but heated by the very circuit.
  • Said condensation and heating are performed by special exchangers arranged centrally and above the washing tub and connected thereto through a series of mouthpieces or fittings, respectively for delivery and return, and ventilator means for the circulation of air.
  • the machine also comprises counterweights for reducing the vibrations that occur following the high speed rotation of the basket; said counterweights being arranged at the sides of exchanger means.
  • Figures 1 and 2 illustrate the core of the machine, i.e. the washing tub with the air recirculation system and the heating and condensation thereof
  • Figure 3 illustrates the upper portion of the laundry washing machine with the detail on the condensate water collection container, arranged beneath the relative exchanger (the cooling one) and ventilator means which suction air from the washing tub through special channels,
  • FIG. 4 the rear of the machine in question, with the suctioning channels and relative ducts or ports for connection with the tub; the figures clearly show the arrangement of two counterweights arranged laterally with respect to the exchanger groups
  • Figure 5 illustrates, still seen from the top of the machine, with exchangers arranged centrally and counterweights at the sides, a system for the recirculation through fans arranged at the front part of the machine; it should also be observed that the detergent container at the rear part is arranged to leave space for said ventilator means,
  • Figure 6 illustrates a median section of the washing machine in question with the two exchangers arranged in series, a filtering means for filtering the air suctioned from the tub and recirculation ducts, arranged so as to establish a linear path for the suctioned air at the rear part from the drum and reintroduced from the front part.
  • a front load washing machine for domestic use serving as a laundry washer/dryer, according to the present invention is indicated in its entirety with 1.
  • the machine 1 comprises a cabinet 2 within which there is arranged a washing tub 3 in a known manner.
  • a drum In the latter there is rotated, around a horizontal or substantially horizontal axis X, a drum also of the known type and in particular perforated.
  • the laundry to be washed is placed in the drum 4 through a loading opening 5 associated to a front part of the cabinet 2.
  • the drum4 is closed at the rear part by a bottom wall while at the centre, i.e. at the aforementioned axis X, it is supported by a shaft 6 connected/driven in rotation by an electric motor 7, of known type, usually mounted outside the tub 3 and connected thereto through a belts and pulleys system.
  • the axis X of the drum is horizontal, but the latter may also be slightly inclined, raised towards the front part of the cabinet so as to allow an easier loading of the laundry into the drum4 by a user.
  • the loading opening is closed through a door, not illustrated, comprising an inspection hole made of transparent material, glass or plastic.
  • the previously described machine 1 combined with the washing system, comprises a drying system which provides for:
  • At least one vertical or horizontal rotary compressor 8 for the compression - with substantially constant volume - of a gas which, once compressed, traverses the ducts 9 and reaches
  • Said groups 10 and 11 (condensation and heating) are thus exchangers adapted to exchange heat between the air in recirculation and the gas contained in the compressor.
  • the exchangers are arranged over the washing tub and connected to the latter through a series of mouthpieces 12, 13, or fittings and suctioning 14 and re-introduction 15 channels which connect said groups to corresponding openings on the tub.
  • the flow is separated into two channels 14, thus joined for passing into the exchangers, and thus once again separated in the two reintroduction channels 15.
  • This allows reducing the overall dimensions required by the ducts 14, 15, while the problem regarding overall dimensions of the upper linear exchangers is resolved by the movement of the masses or counterweights, as described hereinafter.
  • the drying system performs the operation of a heat pump which, as known, is made up of a circuit sealed from the internal, in which a gas performs an entire thermodynamic cycle or Carnot cycle, which practically consists in an almost adiabatic compression (with practically constant volume) in the hermetic volumetric compressor.
  • the driving electric motor which could for example be an inverter electric motor, and the compressor are incorporated in a single hermetic container, entirely heat sealed, so as to reduce heat dispersions towards the external; obviously, the hermetic container also contains the oil for the lubrication of the compressor.
  • the gas increases in terms of pressure and temperature with an increase of the enthalpy content thereof; in the second step the gas traverses an exchanger, in this case that of the heating group, in which it is at contact with the air in recirculation from the washing tub through the fans, transferring the stored air thereto in the two previous steps.
  • the gas, traversing an expansion valve is subjected to a "lamination" process and an ensuing reduction of pressure and thus a temperature drop. This change of state from gas to liquid is used in the evaporation (fourth step) where the gas is at very low temperatures, such to allow it to absorb heat (in the condensation group) from the external energy carrier vector fluid, i.e.
  • the air is suctioned from the drum and conveyed on both exchangers through a tangential fan.
  • the air is thus cooled by a few degrees centigrade (thus causing the condensation of the water contained therein) and sent to the other exchanger, while the gas absorbs the heat thereof evaporating once again and returning to the compressor to recover the described cycle.
  • the machine comprises - at the upper part - the heat exchanger groups of the heat pump cycle actuated by the heat pump, while the latter is positioned at the lower part and adjacent to the drum driving motor 7.
  • a container 17 for collecting the condensate water the latter comprises a series of grooves which divert the collected water towards at least one discharge point where - under gravity - the water flows to the lower part and it is then discharged by the pump of the laundry washing machine.
  • the ventilator means are housed in the front portion of the cabinet, i.e. between the cabinet 2 and the heating group, creating an air circulation which rises at the rear part from the basket, traverses both the cooling (at the rear part) and the heating (at the front part) exchanger, then it descends again through the front channels and it is re-introduced into the tub.
  • the figure clearly shows the arrangement of two upper counterweights 18, now arranged laterally to provide space for the exchanger groups.
  • the counterweights are shaped so as to be able to adapt to the new arrangement. The aforementioned allows preserving stability during centrifuge and simultaneously limiting the overall size of the machine.
  • the present invention provides for positioning a series of exchangers, between the heat pump cycle and the air within the machine, at the upper part and in central position on the machine and arrange the counterweights for the vibrations on the sides.
  • the present invention provides for a system for the recirculation, condensation and heating of the air through a series of ventilator means at the front part of the machine.
  • both the detergents container and the filter are accessible from the upper plane which shall be partly tiltable to allow said access.
  • Said container arranged below the plane and adapted to contain the detergent, is arranged at the rear part so as to clear suitable space occupied by the aforementioned ventilator means.
  • Said exchangers are arranged in series and comprise at least one filtering means 19 at the inlet with the function of filtering the air suctioned from the tub, through the rear suctioning ducts, keeping the condensation and heating groups clean of any residues of textile fibres could be contained in the suctioned air.
  • the filtering means is in axis with said exchangers and it is arranged before the airflow - which rises at the rear part from the drum- is intercepted by the exchanger 10.
  • the aforementioned drying system could also be applied to rotary baskets with induction motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne une machine à laver à chargement frontal comportant un système de séchage incorporé, ayant une pompe à chaleur, tout en préservant l'avantage consistant à réaliser le lavage et le séchage dans la même dimension, c'est-à-dire la dimension globale standard pour les machines en question. Hormis le système de lavage, la machine comprend un système de séchage ayant un circuit de pompe à chaleur conçu pour condenser l'air extrait de la cuve de lavage et réintroduit ensuite dans celle-ci, mais chauffé par le circuit de pompe à chaleur. Lesdites étapes de condensation et de chauffage sont actionnées par des échangeurs de chaleur spéciaux agencés au centre et au-dessus de la cuve de lavage et reliés à celle-ci par une série d'embouts ou de raccords, respectivement pour une distribution et un retour, et des moyens de ventilateur avant pour la circulation de l'air et comprenant un filtre intermédiaire pour collecter des impuretés. Une cuve de collecte détourne l'eau de condensat vers la pompe de la machine.
EP13848141.1A 2012-11-27 2013-11-26 Machine à laver à chargement frontal ayant un système de séchage incorporé Not-in-force EP2925924B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000082A ITPR20120082A1 (it) 2012-11-27 2012-11-27 Macchina lavabiancheria a carica frontale con sistema di asciugatura incorporato
PCT/IB2013/060423 WO2014083503A2 (fr) 2012-11-27 2013-11-26 Machine à laver à chargement frontal ayant un système de séchage incorporé

Publications (2)

Publication Number Publication Date
EP2925924A2 true EP2925924A2 (fr) 2015-10-07
EP2925924B1 EP2925924B1 (fr) 2017-02-01

Family

ID=47633301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13848141.1A Not-in-force EP2925924B1 (fr) 2012-11-27 2013-11-26 Machine à laver à chargement frontal ayant un système de séchage incorporé

Country Status (4)

Country Link
US (1) US20150322610A1 (fr)
EP (1) EP2925924B1 (fr)
IT (1) ITPR20120082A1 (fr)
WO (1) WO2014083503A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017174766A1 (fr) * 2016-04-08 2017-10-12 Arcelik Anonim Sirketi Machine à laver et/ou sécher le linge à pompe à chaleur

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Publication number Priority date Publication date Assignee Title
CN105220425B (zh) * 2014-05-30 2018-05-04 杭州三花研究院有限公司 一种衣物干燥装置及烘干系统
CN105696290B (zh) * 2014-11-25 2019-06-14 杭州三花研究院有限公司 一种衣物干燥装置
EP3088596B1 (fr) * 2015-04-29 2018-07-11 Whirlpool EMEA S.p.A Machine à laver et à sécher le linge
EP3178985A1 (fr) * 2015-12-07 2017-06-14 Wuxi Little Swan Co. Ltd. Machine à laver et à sécher le linge
KR102585025B1 (ko) * 2016-01-05 2023-10-05 엘지전자 주식회사 히트펌프 모듈을 구비하는 의류처리장치
US20170342636A1 (en) * 2016-05-31 2017-11-30 Wuxi Little Swan Co., Ltd. Heat pump module for laundry treatment device and laundry treatment device
WO2017206231A1 (fr) * 2016-05-31 2017-12-07 无锡小天鹅股份有限公司 Boîte d'installation de pompe à chaleur et sèche-linge à pompe à chaleur ou machine à laver et à sécher intégrée à pompe à chaleur
EP3467184A1 (fr) * 2017-10-09 2019-04-10 Whirlpool Corporation Machine de séchage de linge, en particulier une laveuse-sécheuse, équipée d'un système de pompe à chaleur
EP3467187B1 (fr) 2017-10-09 2021-12-22 Whirlpool Corporation Filtre conçu pour être utilisé dans une machine à sécher le linge et machine à sécher le linge équipé d'un tel filtre

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WO2017174766A1 (fr) * 2016-04-08 2017-10-12 Arcelik Anonim Sirketi Machine à laver et/ou sécher le linge à pompe à chaleur

Also Published As

Publication number Publication date
WO2014083503A2 (fr) 2014-06-05
EP2925924B1 (fr) 2017-02-01
WO2014083503A3 (fr) 2014-07-31
US20150322610A1 (en) 2015-11-12
ITPR20120082A1 (it) 2014-05-28

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