EP2938777B1 - A laundry dryer comprising a spraying device - Google Patents

A laundry dryer comprising a spraying device Download PDF

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Publication number
EP2938777B1
EP2938777B1 EP13826571.5A EP13826571A EP2938777B1 EP 2938777 B1 EP2938777 B1 EP 2938777B1 EP 13826571 A EP13826571 A EP 13826571A EP 2938777 B1 EP2938777 B1 EP 2938777B1
Authority
EP
European Patent Office
Prior art keywords
spraying device
circulation duct
air circulation
laundry
laundry dryer
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.)
Not-in-force
Application number
EP13826571.5A
Other languages
German (de)
French (fr)
Other versions
EP2938777A1 (en
Inventor
Onur Hartoka
Mehmet Kaya
Onur MUHIDDIN
Celal Vatansever
Mehmet MUTLUDOGAN
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP2938777A1 publication Critical patent/EP2938777A1/en
Application granted granted Critical
Publication of EP2938777B1 publication Critical patent/EP2938777B1/en
Not-in-force 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the present invention relates to a laundry dryer comprising a spraying device.
  • the drying process is realized with the interaction between the cooling air and the processing air(PA) that do not directly contact each other.
  • the process air(PA) is heated by a heater and directed into the drum, which dehumidifies the laundry by contacting the damp laundry and is transferred to a condenser to be dehumidified.
  • the cooling air is sent onto the condenser by means of a fan and thus, the moisture in the processing air(PA) is provided to be condensed by the condenser being cooled.
  • the processing air(PA) is heated by the heater and sent to the drum by being included again into the drying cycle with low relative humidity rate and at high temperature.
  • the heated air is directed into the drum containing the laundry to be dried and is sucked to be redirected into the heating cycle.
  • particles such as fiber, lint etc. accumulate in the air circulation duct and cause the air circulation duct to be clogged.
  • spraying devices are placed on the air circulation duct.
  • the spraying device sprays water onto the particles, such as fiber, lint etc. accumulating in the air circulation duct and provides the removal of these particles from the air circulation duct.
  • the particles accumulating in the air circulation duct may clog the outlet of the spraying device and prevent the spraying device from operating effectively.
  • European Patent Application EP 2 386 679 A1 discloses a clothes dryer with a dehumidification unit disposed in an air channel to condense moisture, with a filter to filter lint from the air, and with a cleaning nozzle to spray water to the filter to remove lint from it.
  • the cleaning nozzle is attached to the end of a hose.
  • the aim of the present invention is the realization of a laundry dryer, the drying effectiveness of which is increased.
  • the laundry dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a body, a cylindrical drum wherein the laundry to be dried is placed, an air circulation duct enabling the processing air(PA) to be sent onto the laundry in the drum, and a spraying device situated in the air circulation duct, spraying water onto particles such as fiber, lint etc. accumulating(PA) in the air circulation duct and thus providing the cleaning of these particles.
  • the laundry dryer of the present invention furthermore comprises the spraying device that is detachably placed to the air circulation duct.
  • the laundry dryer comprises a filter that is situated in the air circulation duct, that can be moved together with the spraying device and that retains the particles such as fiber, lint etc. in the processing air(PA) blown onto the laundry.
  • the particles such as fiber, lint etc. in the processing air(PA) accumulate on the filter that is situated in the air circulation duct.
  • the user detaches and cleans the filter in the laundry dryer, and then replaces the filter to the air circulation duct.
  • the spraying device moving together with the filter, the user can clean the spraying device as well while cleaning the filter.
  • the heat exchanger can be moved together with the spraying device as a single piece.
  • the particles such as fiber, lint etc. in the processing air(PA) accumulate on the heat exchanger that is situated in the air circulation duct.
  • the user detaches and cleans the heat exchanger in the laundry dryer, and then replaces the heat exchanger to the air circulation duct.
  • the spraying device moving together with the heat exchanger, the user can clean the spraying device as well while cleaning the heat exchanger.
  • the laundry dryer comprises a heat exchanger such as condenser, evaporator, etc. that enables the temperature of the processing air(PA) blown onto the laundry to be changed.
  • the spraying device moves together with the heat exchanger.
  • the laundry dryer comprises a cover situated on the body and providing access to the spraying device.
  • the user can easily access the spraying device by means of the cover that can be opened by being rotated and/or pulled.
  • the laundry dryer comprises a locking mechanism that enables the spraying device to be detachably mounted into the air circulation duct.
  • the locking mechanism preferably has a claw-shaped structure that can be seated into the housing by being slid or has a structure that can be mounted onto a tooth rack.
  • the spraying device can be easily attached/detached.
  • the laundry dryer (1) comprises a body (2), a drum (3) wherein laundry to be dried is placed, an air circulation duct (4) providing the processing air (PA) to be sent onto the laundry in the drum (3), at least one filter (5) situated in the air circulation duct (4) and that holds the particles like fiber, lint etc. in the processing air (PA) blown onto the laundry, a heat exchanger (6) situated in the air circulation duct (4) and enabling the temperature of the processing air (PA) blown onto the laundry to be changed, and a spraying device (7) situated in the air circulation duct (4), spraying water onto particles such as fiber, lint etc. accumulating in the air circulation duct (4) and thus providing the cleaning of these particles.
  • PA processing air
  • the laundry dryer (1) of the present invention furthermore comprises the spraying device (7) that is detachably placed to the air circulation duct (4).
  • the spraying device (7) sprays water onto these particles accumulating in the air circulation duct (4) and provides the removal of these particles from the air circulation duct (4).
  • the water condensing in the processing air (PA) condensed by the heat exchanger (6) is delivered to a receptacle located in the vicinity of the heat exchanger (6).
  • the water collected in the tank is transferred to the spraying device (7) by means of a transfer means.
  • the spraying device (7) sprays water onto components such as the heat exchanger (6), the filter (5) and thus cleans these components.
  • the particles such as fiber, lint, etc. are densely present in the processing air (PA)
  • these particles may stick to the spraying device (7) and clog the spraying device (7).
  • the user should check and/or clean the said spraying device (7) at certain intervals.
  • the spraying device (7) can be easily accessed by the user and can be easily attached/detached.
  • the spraying device (7) that is detachably mounted to the air circulation duct (4), the user can easily detach and clean spraying device (7) and mount it again to the air circulation duct (4).
  • the spraying device (7) can be moved together with the filter (5).
  • the particles such as fiber, lint etc. in the processing air (PA) accumulate on the filter (5) that is situated in the air circulation duct (4).
  • the user detaches and cleans the filter (5) in the laundry dryer (1), and then replaces the filter (5) to the air circulation duct (4).
  • the spraying device (7) moving together with the filter (5), the user can clean the spraying device (7) as well while cleaning the filter (5).
  • the heat exchanger (6) can be moved together with the spraying device (7).
  • the particles such as lint, fluff, etc. in the processing air (PA) accumulate on the heat exchanger (6) that is situated in the air circulation duct (4).
  • the user detaches and cleans the heat exchanger (6) in the laundry dryer (1), and then replaces the heat exchanger (6) to the air circulation duct (4).
  • the spraying device (7) moving together with the heat exchanger (6), the user can clean the spraying device (7) as well while cleaning the heat exchanger (6).
  • the laundry dryer (1) comprises a heat exchanger (6) such as condenser, evaporator, etc. that enables the temperature of the processing air (PA) blown onto the laundry to be changed.
  • the spraying device (7) moves together with the heat exchanger (6).
  • the laundry dryer (1) comprises a cover (8) situated on the body (2) and providing access to the spraying device (7).
  • the user can easily access the spraying device (7) by means of the cover (8) that is preferably situated on the body (2) and that can be opened by being rotated and/or pulled.
  • the laundry dryer (1) comprises a locking mechanism (9) that enables the spraying device (7) to be detachably mounted into the air circulation duct (4).
  • the locking mechanism (9) preferably has a claw-shaped structure that can be seated into the housing by being slid or has a structure that can be mounted onto a tooth rack.
  • the spraying device (7) can be easily attached/detached.
  • the spraying device (7) that sprays water onto the particles such as hair, lint, fiber, etc. in the processing air (PA) accumulating on the components in the air circulation duct (4) is used more efficiently.
  • PA processing air

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

  • The present invention relates to a laundry dryer comprising a spraying device.
  • In closed cycle laundry dryers widely used nowadays, the drying process is realized with the interaction between the cooling air and the processing air(PA) that do not directly contact each other. The process air(PA) is heated by a heater and directed into the drum, which dehumidifies the laundry by contacting the damp laundry and is transferred to a condenser to be dehumidified. Meanwhile, the cooling air is sent onto the condenser by means of a fan and thus, the moisture in the processing air(PA) is provided to be condensed by the condenser being cooled. After being dehumidified on the condenser, the processing air(PA) is heated by the heater and sent to the drum by being included again into the drying cycle with low relative humidity rate and at high temperature. In dryers, the heated air is directed into the drum containing the laundry to be dried and is sucked to be redirected into the heating cycle. During this cycle in the air circulation duct, particles such as fiber, lint etc. accumulate in the air circulation duct and cause the air circulation duct to be clogged. For this reason, spraying devices are placed on the air circulation duct. The spraying device sprays water onto the particles, such as fiber, lint etc. accumulating in the air circulation duct and provides the removal of these particles from the air circulation duct. However, the particles accumulating in the air circulation duct may clog the outlet of the spraying device and prevent the spraying device from operating effectively.
  • In the state of the art European Patent Application No. EP2072660 , a spraying device is described, providing the cleaning of the filter situated in the laundry dryer.
  • European Patent Application EP 2 386 679 A1 discloses a clothes dryer with a dehumidification unit disposed in an air channel to condense moisture, with a filter to filter lint from the air, and with a cleaning nozzle to spray water to the filter to remove lint from it. The cleaning nozzle is attached to the end of a hose.
  • The aim of the present invention is the realization of a laundry dryer, the drying effectiveness of which is increased.
  • The laundry dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a body, a cylindrical drum wherein the laundry to be dried is placed, an air circulation duct enabling the processing air(PA) to be sent onto the laundry in the drum, and a spraying device situated in the air circulation duct, spraying water onto particles such as fiber, lint etc. accumulating(PA) in the air circulation duct and thus providing the cleaning of these particles.
  • The laundry dryer of the present invention furthermore comprises the spraying device that is detachably placed to the air circulation duct.
  • In an embodiment of the present invention, the laundry dryer comprises a filter that is situated in the air circulation duct, that can be moved together with the spraying device and that retains the particles such as fiber, lint etc. in the processing air(PA) blown onto the laundry. In the course of time the particles such as fiber, lint etc. in the processing air(PA) accumulate on the filter that is situated in the air circulation duct. The user detaches and cleans the filter in the laundry dryer, and then replaces the filter to the air circulation duct. By means of the spraying device moving together with the filter, the user can clean the spraying device as well while cleaning the filter.
  • In an embodiment of the present invention, the heat exchanger can be moved together with the spraying device as a single piece. In the course of time the particles such as fiber, lint etc. in the processing air(PA) accumulate on the heat exchanger that is situated in the air circulation duct. The user detaches and cleans the heat exchanger in the laundry dryer, and then replaces the heat exchanger to the air circulation duct. By means of the spraying device moving together with the heat exchanger, the user can clean the spraying device as well while cleaning the heat exchanger. The laundry dryer comprises a heat exchanger such as condenser, evaporator, etc. that enables the temperature of the processing air(PA) blown onto the laundry to be changed. Preferably situated in front of, above or behind the heat exchanger, the spraying device moves together with the heat exchanger.
  • In an embodiment of the present invention, the laundry dryer comprises a cover situated on the body and providing access to the spraying device. The user can easily access the spraying device by means of the cover that can be opened by being rotated and/or pulled.
  • In an embodiment of the present invention, the laundry dryer comprises a locking mechanism that enables the spraying device to be detachably mounted into the air circulation duct. The locking mechanism preferably has a claw-shaped structure that can be seated into the housing by being slid or has a structure that can be mounted onto a tooth rack. Thus, the spraying device can be easily attached/detached.
  • In the laundry dryer of the present invention, hygienic utilization conditions and energy efficiency are improved by using the spraying device efficiently.
  • The laundry dryer realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
    • Figure 1 - is the schematic view of a laundry dryer.
    • Figure 2 - is the schematic view of the laundry dryer while the spraying device is being taken out of the laundry dryer in an embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. 1. Laundry dryer
    2. 2. Body
    3. 3. Drum
    4. 4. Air circulation duct
    5. 5. Filter
    6. 6. Heat exchanger
    7. 7. Spraying device
    8. 8. Cover
    9. 9. Locking mechanism
  • The laundry dryer (1) comprises a body (2), a drum (3) wherein laundry to be dried is placed, an air circulation duct (4) providing the processing air (PA) to be sent onto the laundry in the drum (3), at least one filter (5) situated in the air circulation duct (4) and that holds the particles like fiber, lint etc. in the processing air (PA) blown onto the laundry, a heat exchanger (6) situated in the air circulation duct (4) and enabling the temperature of the processing air (PA) blown onto the laundry to be changed, and a spraying device (7) situated in the air circulation duct (4), spraying water onto particles such as fiber, lint etc. accumulating in the air circulation duct (4) and thus providing the cleaning of these particles.
  • The laundry dryer (1) of the present invention furthermore comprises the spraying device (7) that is detachably placed to the air circulation duct (4).
  • During the operation of the laundry dryer (1), fiber, lint and hair coming off the laundry accumulate in the processing air (PA) that circulates in the air circulation duct (4) situated in the body (2) in the course of time. The spraying device (7) sprays water onto these particles accumulating in the air circulation duct (4) and provides the removal of these particles from the air circulation duct (4). The water condensing in the processing air (PA) condensed by the heat exchanger (6) is delivered to a receptacle located in the vicinity of the heat exchanger (6). The water collected in the tank is transferred to the spraying device (7) by means of a transfer means. The spraying device (7) sprays water onto components such as the heat exchanger (6), the filter (5) and thus cleans these components. In the case the particles such as fiber, lint, etc. are densely present in the processing air (PA), these particles may stick to the spraying device (7) and clog the spraying device (7). The user should check and/or clean the said spraying device (7) at certain intervals. Thus, the spraying device (7) can be easily accessed by the user and can be easily attached/detached. By means of the spraying device (7) that is detachably mounted to the air circulation duct (4), the user can easily detach and clean spraying device (7) and mount it again to the air circulation duct (4).
  • In an embodiment of the present invention, the spraying device (7) can be moved together with the filter (5). In the course of time the particles such as fiber, lint etc. in the processing air (PA) accumulate on the filter (5) that is situated in the air circulation duct (4). The user detaches and cleans the filter (5) in the laundry dryer (1), and then replaces the filter (5) to the air circulation duct (4). By means of the spraying device (7) moving together with the filter (5), the user can clean the spraying device (7) as well while cleaning the filter (5).
  • In an embodiment of the present invention, the heat exchanger (6) can be moved together with the spraying device (7). In the course of time the particles such as lint, fluff, etc. in the processing air (PA) accumulate on the heat exchanger (6) that is situated in the air circulation duct (4). The user detaches and cleans the heat exchanger (6) in the laundry dryer (1), and then replaces the heat exchanger (6) to the air circulation duct (4). By means of the spraying device (7) moving together with the heat exchanger (6), the user can clean the spraying device (7) as well while cleaning the heat exchanger (6). The laundry dryer (1) comprises a heat exchanger (6) such as condenser, evaporator, etc. that enables the temperature of the processing air (PA) blown onto the laundry to be changed. Preferably situated in front of, above or behind the heat exchanger (6), the spraying device (7) moves together with the heat exchanger (6).
  • In an embodiment of the present invention, the laundry dryer (1) comprises a cover (8) situated on the body (2) and providing access to the spraying device (7). The user can easily access the spraying device (7) by means of the cover (8) that is preferably situated on the body (2) and that can be opened by being rotated and/or pulled.
  • In an embodiment of the present invention, the laundry dryer (1) comprises a locking mechanism (9) that enables the spraying device (7) to be detachably mounted into the air circulation duct (4). The locking mechanism (9) preferably has a claw-shaped structure that can be seated into the housing by being slid or has a structure that can be mounted onto a tooth rack. Thus, the spraying device (7) can be easily attached/detached.
  • In the laundry dryer (1) of the present invention, the spraying device (7) that sprays water onto the particles such as hair, lint, fiber, etc. in the processing air (PA) accumulating on the components in the air circulation duct (4) is used more efficiently. Thus, a more hygienic laundry dryer (1) with high energy effectiveness is realized.

Claims (4)

  1. A laundry dryer (1) comprising
    - a body (2),
    - a drum (3) wherein laundry to be dried is placed,
    - an air circulation duct (4) providing the processing air (PA) to be sent onto the laundry in the drum (3),
    - at least one filter (5) situated in the air circulation duct (4) and that holds the particles like fiber, lint etc. in the processing air (PA) blown onto the laundry,
    - a heat exchanger (6) situated in the air circulation duct (4) and enabling the temperature of the processing air (PA) blown onto the laundry to be changed,
    - and a spraying device (7) situated in the air circulation duct (4), spraying water onto particles such as fiber, lint etc. accumulating in the air circulation duct (4) and thus providing the cleaning of these particles, the spraying device (7) being detachably mounted to the air circulation duct (4),
    characterized by the spraying device (7) that can be accessed by means of a cover (8) situated on the body (2) and providing access to the spraying device (7) such that it can be easily attached/detached.
  2. A laundry dryer (1) as in Claim 1, characterized by the spraying device (7) that can be moved together with the filter (5).
  3. A laundry dryer (1) as in Claim 1 or 2, characterized by the spraying device (7) that can be moved together with the heat exchanger (6).
  4. A laundry dryer (1) as in any one of the above claims, characterized by a locking mechanism (9) that enables the spraying device (7) to be detachably mounted into the air circulation duct (4).
EP13826571.5A 2012-12-28 2013-12-27 A laundry dryer comprising a spraying device Not-in-force EP2938777B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201215573 2012-12-28
PCT/EP2013/078049 WO2014102322A1 (en) 2012-12-28 2013-12-27 A laundry dryer comprising a spraying device

Publications (2)

Publication Number Publication Date
EP2938777A1 EP2938777A1 (en) 2015-11-04
EP2938777B1 true EP2938777B1 (en) 2016-12-07

Family

ID=50030228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13826571.5A Not-in-force EP2938777B1 (en) 2012-12-28 2013-12-27 A laundry dryer comprising a spraying device

Country Status (3)

Country Link
EP (1) EP2938777B1 (en)
ES (1) ES2618417T3 (en)
WO (1) WO2014102322A1 (en)

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US9562707B2 (en) 2013-03-14 2017-02-07 Whirlpool Corporation Refrigerator cooling system having a secondary cooling loop
WO2016108101A1 (en) * 2014-12-30 2016-07-07 Indesit Company S.P.A. Washing/drying machine with a device for cleaning an air filter
US10087569B2 (en) 2016-08-10 2018-10-02 Whirlpool Corporation Maintenance free dryer having multiple self-cleaning lint filters
US10519591B2 (en) 2016-10-14 2019-12-31 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
US10738411B2 (en) 2016-10-14 2020-08-11 Whirlpool Corporation Filterless air-handling system for a heat pump laundry appliance
US10502478B2 (en) 2016-12-20 2019-12-10 Whirlpool Corporation Heat rejection system for a condenser of a refrigerant loop within an appliance
US10544539B2 (en) 2017-02-27 2020-01-28 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
US10514194B2 (en) 2017-06-01 2019-12-24 Whirlpool Corporation Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators
US10718082B2 (en) 2017-08-11 2020-07-21 Whirlpool Corporation Acoustic heat exchanger treatment for a laundry appliance having a heat pump system
US11015281B2 (en) 2017-09-26 2021-05-25 Whirlpool Corporation Laundry appliance having a maintenance free lint removal system
PL3786342T3 (en) 2019-08-28 2023-10-16 Arçelik Anonim Sirketi A dryer

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Also Published As

Publication number Publication date
EP2938777A1 (en) 2015-11-04
WO2014102322A1 (en) 2014-07-03
ES2618417T3 (en) 2017-06-21

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