EP1990464A1 - Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment - Google Patents

Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment Download PDF

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Publication number
EP1990464A1
EP1990464A1 EP07425268A EP07425268A EP1990464A1 EP 1990464 A1 EP1990464 A1 EP 1990464A1 EP 07425268 A EP07425268 A EP 07425268A EP 07425268 A EP07425268 A EP 07425268A EP 1990464 A1 EP1990464 A1 EP 1990464A1
Authority
EP
European Patent Office
Prior art keywords
flow
passage
drying
air
compartment
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
EP07425268A
Other languages
German (de)
English (en)
Other versions
EP1990464B1 (fr
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Priority to EP07425268A priority Critical patent/EP1990464B1/fr
Publication of EP1990464A1 publication Critical patent/EP1990464A1/fr
Application granted granted Critical
Publication of EP1990464B1 publication Critical patent/EP1990464B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F58/10—Drying cabinets or drying chambers having heating or ventilating 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
    • 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
    • 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
    • D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam 
    • D06F73/02—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam  having one or more treatment chambers
    • 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
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature

Definitions

  • the present invention relates to a laundry drying machine in which a flow of drying air is made to circulate in a closed path which comprises an electric fan for driving the said flow, a drum containing the washing to be dried with the corresponding loading door in the closed position, a detector of the moisture level of the flow, a battery of heaters for heating the flow of air, and a condenser for removing from the flow the moisture absorbed in its passage through the washing in the drum, and in which a flow of cooling air for the condenser is guided in a passage which has a first opening for the intake of the air and a second opening for discharge, both openings being in communication with the environment outside the drying machine, and which has a portion which passes through the said condenser, means for controlling the rate of flow of the cooling air flowing into the passage, and electric fan means for generating and propagating the flow in the said passage, the said laundry drying machine including at least one supplementary drying compartment incorporated in the circuit of the said cooling air flow and placed in a portion between the said condenser and
  • This compartment is therefore particularly useful for drying delicate or very delicate washing which requires no ironing, or very little ironing, but it is not so suitable for drying washing which needs to be ironed with the use of steam or adequate moisturizing.
  • the object of the present invention is therefore to increase the number of drying modes of the supplementary compartment of the laundry drying machine whose characteristics have been indicated in the preamble.
  • the number 1 indicates schematically the drum of a laundry drying machine M which can be of the static or rotary type.
  • the drum 1 is provided with a door (not shown) for loading the washing to be dried and for hermetically sealing the drum during the operation of the machine.
  • the drum 1 is included in a closed circuit formed by the portions of a passage 2 for the drying air, comprising a conventional filter 3, a heat exchanger 4 of the air/air type which condenses the moisture carried by the drying air flow, an electric fan 5 for circulating the air flow in the circuit, and a heater 6 of the conventional electrical resistance type, positioned, for example, immediately upstream of the drum 1.
  • the drying air flow circulates in the direction of the arrows F1 in Figure 1 .
  • the equipment comprises a further circuit, formed by portions of passage 7 dedicated to the flow of the cooling air.
  • This further circuit is provided with an opening 8 for the intake of air from the environment of the laundry drying machine, with members 9 for controlling the rate of the flow, with an electric fan 10 for generating and propagating the flow in the passages 7, and with an opening 11 for discharging the air again towards the environment of the machine.
  • the circuit formed by the passages 7 has a portion 7a which passes in a conventional way through the condensation exchanger 4, in such a way that the external heat exchange surface of the exchanger is contacted by the flow of cooling air whose direction of circulation is indicated by the arrows F2 in Figure 1 .
  • the condensate which is formed in the condenser 4 as a result of the cooling flows in a conventional way into a collecting vessel 12 connected to the condenser 4 by a passage 12a.
  • Both the air intake opening 8 and the discharge opening 11 are positioned on the laundry drying machine M in positions spaced apart from each other and preferably in opposing positions, in the sense that, if the intake opening 8 is located on the front part of the machine, the discharge opening 11 is preferably positioned in the rear part.
  • cooling air flow control member 9 is shown in Figure 1 in a position between the intake opening 8 and the electric fan 10, it can alternatively be placed in another position in the circuit formed by the passages 7, and particularly in the proximity of the discharge opening 11.
  • the laundry drying machine M has a supplementary compartment S, generally placed beside the main body of the machine.
  • This supplementary compartment S is intended for drying delicate washing which does not need to be ironed, or alternatively, as explained in the following description, for drying items of washing for which ironing is preferably preceded by a suitable stage of moisturizing as in the case of steam ironing.
  • the passage 7 is provided with a switching valve 7c, by means of which the cooling air flow does not proceed directly towards the discharge 11, but is diverted into the portion 7d which opens into the supplementary compartment S from which it passes out through the opening shown schematically at 11a, following the path indicated by the arrows F3.
  • the laundry drying machine M is also provided with a supplementary passage 13 which runs through a valve 14 and opens into the supplementary compartment S with an aperture shown schematically at 15.
  • This passage 13 connects the passage 2, immediately downstream of a moisture sensor 16 and upstream of the heat exchanger 4, with the inside of the supplementary compartment S.
  • valve 14 which can also be of the flow rate control type, is opened, a predetermined quantity of moist hot air from the drum 1 is injected into the supplementary compartment S and thus moisturizes the washing placed in the said compartment, causing the washing to have an adequate moisture level for ironing.
  • the flow passes out of the compartment S through the aforementioned opening 11a.
  • the cooling air flow from the passage 7d is normally diverted directly to the external environment by the diversion valve 7c through the opening 11.
  • the supply of the cooling air flow which has a moderate temperature because of its passage through the heat exchanger 4 can continue, although with a limited flow rate, in order to optimize the moisture content of the washing to be ironed at the end of the drying operation.
  • both the valve 7c and the valve 14 are controlled by an electronic programming and control unit 17, which also sets the member 9 to various degrees of opening between the closed position and the fully open position, according to an operating program provided and stored in the unit, and also according to the values of temperature and the level of moisture in the drying air flow detected by the conventional detector 16 placed in a portion of passage 2, for example immediately upstream of the exchanger 4.
  • the said programming and control unit 17 can also control the operation, stopping and speed of the electric fan 10, as an alternative to the control member 9, or in conjunction with it.
  • the said programming and control unit 17 also determines the setting of the heater 6 so as to provide the drying air flow with any heat required for correct operation.
  • the operation of the equipment includes the possibility of modulating the rate of the cooling flow directed into the supplementary compartment S, or interrupting it completely by diverting it to the outside of the machine, or finally the possibility of supplying the said supplementary compartment S, simultaneously or alternatively, with hot moist air taken from the passage 2 of the drying flow at the point where this flow has the highest moisture level.
  • the rate of this last-mentioned flow can also be controlled by means of the control valve 14.
  • the flow of hot moist air to the supplementary compartment S is supplied at suitable points in the machine cycle, preferably in the form of a pulsed supply controlled by a sequence of opening and closing of the valve 14.
  • the flow of hot moist air from the passage 2 is taken, as shown in Figure 2 , after the drying air present in the drum 1 and in the circuit associated therewith has been brought to the specified temperature Tf from the ambient temperature Ta, and therefore after sufficient heat has been supplied by means of the heater 6.
  • the programming and control unit 17 acts on the valve 14 to cause a series of opening and closing operations according to a cycle of programmed duration.
  • time intervals t1, t2, ... tn and their number are clearly dependent on the type of washing load placed in the supplementary compartment S, and also on the weight of the whole structure of the drying machine.
  • the supplementary compartment S is put into operation by a dedicated program which can terminate independently of the duration of the washing cycle taking place in the drum of the machine.
  • the laundry drying machine according to the invention makes it possible to carry out different kinds of drying in the supplementary compartment S, ranging from a condition of dry washing which does not require subsequent ironing to that of washing with a moisture level suitable for ironing, without necessarily making use of steam ironing.
EP07425268A 2007-05-09 2007-05-09 Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment Expired - Fee Related EP1990464B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425268A EP1990464B1 (fr) 2007-05-09 2007-05-09 Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425268A EP1990464B1 (fr) 2007-05-09 2007-05-09 Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment

Publications (2)

Publication Number Publication Date
EP1990464A1 true EP1990464A1 (fr) 2008-11-12
EP1990464B1 EP1990464B1 (fr) 2010-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425268A Expired - Fee Related EP1990464B1 (fr) 2007-05-09 2007-05-09 Sèche-linge avec compartiment supplémentaire à température contrôlée et procédé pour sécher dans ce compartiment

Country Status (1)

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EP (1) EP1990464B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2511414A1 (fr) 2011-04-15 2012-10-17 Candy S.p.A. Système de filtration pour sèche-linge
EP2511415A1 (fr) 2011-04-15 2012-10-17 Candy S.p.A. Condensateur pour sèche-linge
WO2020034487A1 (fr) * 2018-08-15 2020-02-20 广州视源电子科技股份有限公司 Dispositif et procédé de commande pour un appareil d'entretien de vêtements, appareil d'entretien de vêtements et support de stockage
CN112696972A (zh) * 2020-12-29 2021-04-23 国家能源集团煤焦化有限责任公司 换热器在线清洗结构和换热器在线清洗方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146161A1 (fr) * 2000-04-10 2001-10-17 Whirlpool Corporation Accessoire pour sèche-linge à tambour
EP1541744A1 (fr) * 2003-12-11 2005-06-15 Electrolux Home Products Corporation N.V. Sèche-linge domestique avec condenseur perfectionné
US20060137206A1 (en) * 2004-11-30 2006-06-29 Lg Electronics, Inc. Composite washing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146161A1 (fr) * 2000-04-10 2001-10-17 Whirlpool Corporation Accessoire pour sèche-linge à tambour
EP1541744A1 (fr) * 2003-12-11 2005-06-15 Electrolux Home Products Corporation N.V. Sèche-linge domestique avec condenseur perfectionné
US20060137206A1 (en) * 2004-11-30 2006-06-29 Lg Electronics, Inc. Composite washing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2511414A1 (fr) 2011-04-15 2012-10-17 Candy S.p.A. Système de filtration pour sèche-linge
EP2511415A1 (fr) 2011-04-15 2012-10-17 Candy S.p.A. Condensateur pour sèche-linge
WO2020034487A1 (fr) * 2018-08-15 2020-02-20 广州视源电子科技股份有限公司 Dispositif et procédé de commande pour un appareil d'entretien de vêtements, appareil d'entretien de vêtements et support de stockage
CN112696972A (zh) * 2020-12-29 2021-04-23 国家能源集团煤焦化有限责任公司 换热器在线清洗结构和换热器在线清洗方法
CN112696972B (zh) * 2020-12-29 2022-11-25 国家能源集团煤焦化有限责任公司 换热器在线清洗结构和换热器在线清洗方法

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Publication number Publication date
EP1990464B1 (fr) 2010-03-10

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