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WO2019129399A1 - Sèche-linge pourvu d'un filtre - Google Patents

Sèche-linge pourvu d'un filtre Download PDF

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Publication number
WO2019129399A1
WO2019129399A1 PCT/EP2018/076823 EP2018076823W WO2019129399A1 WO 2019129399 A1 WO2019129399 A1 WO 2019129399A1 EP 2018076823 W EP2018076823 W EP 2018076823W WO 2019129399 A1 WO2019129399 A1 WO 2019129399A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
duct
dryer
drying
horizontal portion
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.)
Ceased
Application number
PCT/EP2018/076823
Other languages
English (en)
Inventor
Cem SELCUK
Adem KAYTAZ
Can Sar
Aykun ACIL
Erdem Kara
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 WO2019129399A1 publication Critical patent/WO2019129399A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • 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 

Definitions

  • the present invention relates to a dryer comprising a filter enabling retaining the particles in the drying air such as fibers or lint.
  • the drying air is directed by means of an air duct into a drum in which the laundry items to be dried are placed, and after being passed through the laundry items, the drying air is sucked back into the duct in order to be heated.
  • various filters placed in the air duct have been developed, enabling retaining such particles.
  • the particles in the drying air are snagged on the filtering surface and are collected on the filter.
  • the particles collecting on said filter block the air flow, causing the energy consumption of the dryer to increase and the drying performance thereof to decrease. Therefore, the filter should be periodically cleaned by a user or automatically.
  • EP1951950 discloses a filter adapted to be used in a dryer, rotatably stretched between two deflectors.
  • this embodiment since almost all of the filter surfaces are disposed so as to extend against the air flow, particles always remain on the filter surfaces, decreasing the air flow rate and fiber retaining capacity.
  • the aim of the present invention is to realize a dryer having a filter with enhanced particle retaining capacity.
  • the dryer realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises at least two reels provided in an air duct, rotatable about a rotational axis, and a circular filter, rotatably placed on the reels.
  • the filter comprises a vertical portion through which the drying air is passed and a horizontal second portion extending in parallel to the duct wall, both of the portions provided so as to be almost vertical to each other.
  • the vertical portion extends along the width of the duct such that almost all of the drying air flowing in the duct is passed therethrough, and the horizontal portion extends almost vertically to the vertical portion so as to be subjected to a minimum air flow in the drying duct.
  • the particles conveyed with the drying air during the laundry items being dried are filtered by both filter surfaces disposed on the vertical portion and are thus collected on the vertical portion of the filter.
  • the reels are rotated and the filter rotates together with the reels such that the surfaces on which fiber is collected, are brought to the horizontal portion, and the clean surfaces disposed on the horizontal portion before the filter was rotated, are brought to the vertical portion
  • the fiber retaining capacity of the filter is thus averted from decreasing by bringing completely clean filter surfaces to the vertical portion. This also avoids decreasing of the air flow rate in the duct.
  • At least one heat exchanger such as an evaporator or a condenser is provided in the duct, and the vertical portion of the filter is disposed right before the heat exchanger so as to enable filtering the particles conveyed in the drying air before they reach the heat exchanger, and the horizontal portion of the filter extends in the space between the heat exchanger and the duct. Convenience in placement is thus provided since allocation of an additional space in the duct for the horizontal portion is not required.
  • the horizontal portion is placed above the heat exchanger so as to be close to the ceiling of the air duct. By this, the water condensing on the heat exchanger is prevented from soaking the horizontal portion.
  • a spraying device enabling spraying water on the filter, is provided in the air duct.
  • the water spraying device ejects water on the surfaces of the filter covered by fibers, enabling the fibers to be released from the filter surface and to be removed from the filter by flowing water.
  • the water spraying device preferably sprays water on the vertical portion, and the water with fibers is enabled to flow downwards from the vertical portion due to gravity.
  • an evaporator enabling dehumidifying the drying air, and a condenser enabling heating the drying air are provided in the air duct, and the second portion at least partially extends in the vicinity of the condenser.
  • the filter surface soaked by means of the water spraying device is enabled to be brought to the horizontal portion by rotation of the reels so as to be in the vicinity of the condenser, and the wet surfaces are dried by means of the heat provided by the condenser.
  • the dried surfaces are thus enabled to be brought to the vertical portion when the reels are rotated again, thereby avoiding a reduction of the permeability of the filter due to staying wet.
  • the horizontal portion extends along the evaporator and the condenser in air flow direction.
  • the filter is thus enabled to have a sufficient length so to be used throughout a plurality of drying cycles without completing a full spin.
  • This embodiment is particularly advantageous when a plurality of drying processes are successively performed, enabling the drying air to be filtered in each drying cycle by fiber-free and dry filter surfaces positioned on the vertical portion.
  • control unit activates respectively the spraying device and the engine.
  • the control unit when a user starts a drying cycle, the control unit first activates the spraying device and then the engine at the beginning of a drying cycle.
  • the fibers collected on the filter in the previous drying cycle are removed from the filter surface by means of the water sprayed by the spraying device, and by activation of the engine, the wet portion of the filter is brought to the horizontal portion in order to be dried by the heat provided by the condenser operating during the drying cycle. The filter is thus prevented from staying wet.
  • a dryer is realized, having a filter with enhanced fiber retaining capacity, which does not require frequent cleaning by a user, thereby providing ease of use and improving drying performance.
  • Figure 1 is a schematic view of the dryer of an embodiment of the invention.
  • Figure 2 is a partial schematic view of the dryer of another embodiment of the invention.
  • the dryer (1) comprises a body (2), a drum (3) provided in the body (2), in which the laundry items to be dried are loaded, a duct (4) opening to the drum (3), in which the drying air circulates, at least two reels (5) provided in the duct (4), and a filter (6) provided in the duct (4), shaped as a continuous belt stretched between the reels (5) so as to rotate together with the reels (5) suitable for retaining particles such as fibers or lint in the drying air.
  • the drying air heated and dried in the duct (4) is blown on the laundry items in the drum (3), and is sucked back into the duct (4) by means of a fan (not shown in the figures) after being passed through the laundry items.
  • the drying air sucked into the duct (4) is purged of the particles such as fibers or lint by being passed through the filter (6).
  • the filter (6) retaining said particles is rotated manually or automatically by means of the reels (5), and the filter surface to which the drying air initially contacts in flow direction is thus changed.
  • the dryer (1) of the invention comprises a filter (6) having at least one vertical portion (7) extending so as to be almost vertical to the air flow direction in the duct (4), and at least one horizontal portion (8) extending so as to be almost parallel to the air flow direction in the duct (4).
  • the filter (6) is shaped as a continuous belt preferably made of textile.
  • the filter (6) is stretched between a pair of reels (5) so as to almost have an “L” shape, and has a vertical portion (7) extending angularly, preferably vertically to the flow direction of the drying air flowing in the duct (4), and a horizontal portion (8) extending almost in parallel to the flow direction of the drying air flowing in the duct (4).
  • the filter (6) is supported by means of at least one support (12) at its bending portion located between the vertical portion (7) and the horizontal portion (8).
  • the drying air circulating in the duct (4) is passed through the surfaces of the filter (6) resting on the vertical portion (7), and the particles are collected on the filter surfaces located on the vertical portion (7). Since the surfaces of the filter (6) resting on the horizontal portion (8), extend in parallel to the air flow, particles are not collected thereon.
  • the filter (6) is rotated by means of the reels (5), enabling replacing the surface of the filter (6) resting on the vertical portion (7) with the surface resting on the horizontal portion (8).
  • the clean surfaces of the filter (6) located on the horizontal portion (8) before rotation of the filter (6) are brought to the vertical portion (7).
  • At least one heat exchanger is provided in the duct (4), and the horizontal portion (8) extends between a heat exchanger (9, 10) and the duct (4) wall.
  • At least one heat exchanger (9, 10) is provided in the duct (4) in order to dehumidify the drying air and/or to heat the drying air.
  • the vertical portion (7) is disposed before the heat exchanger (9, 10) in air flow direction, and the particles conveyed by the drying air are enabled to be filtered before reaching the heat exchanger (9, 10).
  • the horizontal portion (8) extends between the heat exchanger (9, 10) and the duct (4) wall so as to be almost adjacent to the heat exchanger (9, 10).
  • the filter (6) is thus placed in the duct (4) so as to surround the heat exchanger (9, 10) from two sides, thereby avoiding occupation of a large space in the duct (4) for the filter (6).
  • the horizontal portion (8) extends above the heat exchanger (9, 10).
  • the horizontal portion (8) extends right below the duct (4) ceiling so as to be above the heat exchanger (9, 10). Access to the filter (6) is thus facilitated, providing ease of service in case of desiring a replacement of the filter (6).
  • a water spraying device (11) is provided in the duct (4), enabling spraying water on the filter (6) so as to enable removing the particles collected on the filter (6).
  • the fibers collected on the vertical portion (7) of the filter (6) are flushed by the water sprayed by the spraying device (11), and the surface of the filter (6) is thus cleaned by being purged of the particles.
  • the spraying device (11) is preferably disposed right above the vertical portion (7), and sprays water on the surfaces of the filter (6) located on the vertical portion (7). The particles are removed from the filter (6) surface with the water flowing downwards due to gravity, thereby automatically cleaning the filter (6).
  • two heat exchangers (9, 10) are provided successively in air flow direction in the duct (4), which are an evaporator (9) enabling dehumidifying the drying air and a condenser (10) enabling heating the drying air, and at least a portion of the horizontal portion (8) extends in the vicinity of the condenser (10).
  • Two heat exchangers (9, 10) are provided in the duct, namely an evaporator (9) on which the humidity of the drying air is condensed, and a condenser (10) enabling heating the dehumidified drying air.
  • the horizontal portion (8) is placed in the duct (4) so as to extend at least partially on the condenser (10).
  • the wet surfaces of the filter (6) displaced to the horizontal portion (8) by rotation of the filter (6) is moved closer to the condenser (10), and are dried thanks to the heat provided by the condenser (10).
  • the filter (6) is thus prevented from causing malodors and bacteria formation due to remaining wet.
  • the horizontal portion (8) extends almost along the evaporator (9) and the condenser (10).
  • the heat exchangers (9, 10) are placed side-by-side such that the evaporator (9) and the condenser (10) is disposed respectively in air flow direction in the duct (4), and the horizontal portion (8) extends almost along the evaporator (9) and the condenser (10).
  • the length of the filter (6) is thus elongated, enlarging the surface area extending in the vicinity of the condenser (10), enabling the filter (6) to be dried effectively.
  • At least one support (12) is provided in the duct (4), rotatable so as rotate together with the filter (6), supporting the filter (6) at its bending portion located between the vertical portion (7) and the horizontal portion (8).
  • the bending portion of the filter (6) located between the vertical portion (7) and the horizontal portion (8), is passed over the rotatable support (12).
  • the support (12) is preferably an idler roller on which the filter (6) is wound, rotatably supporting the filter (6). The filter (6) is thus enabled to rotate smoothly.
  • the dryer (1) comprises an engine (13) connected to at least one of the reels (5), enabling rotating said reel (5).
  • the engine (13) enables interchanging the surfaces of the filter (6) on the horizontal portion (8) and the vertical portion (7) by rotating at least one of the reels (5).
  • This embodiment is advantageous in that it enables rotating the filter (6) without requiring a manual operation, avoiding problems likely to occur due to not interchanging the filter (6) surfaces frequently enough.
  • the dryer (1) comprises a control unit (not shown in the figures) enabling activation of the spraying device (11) and the engine (13) respecitively such that the filter (6) is rotated after being sprayed with water.
  • the control unit activates the engine (13) and enables the filtering surface to be displaced.
  • the wet surfaces of the filter (6) on the vertical portion (7) is replaced with the dry surfaces on the horizontal portion (8), enabling the drying air to always pass through dry surfaces. A drop in the drying performance is thus averted by avoiding loading additional humidity to the drying air.
  • control unit enables activation of the water spraying device (11) and the engine (13) respectively at the beginning of the drying cycle.
  • the control unit first activates the spraying device (11) and enables cleaning the particles collected on the vertical portion (7), remaining from the previous cycle, and then activates the engine (13) and enables moving the wet filter (6) surfaces to the horizontal portion (8).
  • This embodiment is advantageous in that it enables drying the wet filter (6) surfaces with the heat provided by the condenser (10) operating throughout a drying cycle. Consuming additional energy to dry the filter (6) is thus avoided.
  • At least one sensor (14) is provided in the duct (4), enabling detecting the air flow rate, and the control unit enables activating the spraying device (11) and the engine (13) according to data received from the sensor (14).
  • the control unit determines by means of the data received from the sensor (14), that the flow rate of the drying air drops below a limit value, it detects collection of a lot of particles on the vertical portion (7), and respectively activates the spraying device (11) and the engine (13).
  • the filter (6) surfaces are automatically cleaned and replaced when a lot of particles are collected on the vertical portion (7) during the drying process, preventing the drying performance from dropping during a drying cycle.
  • the drying air is effectively filtered by keeping the filtering surfaces of the filter (6) always clean and dry. Furthermore, the drying efficiency of the dryer (1) is enhanced by means of the invention by preventing loading additional humidity to the drying air.

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

La présente invention concerne un sèche-linge (1) comprenant un corps (2), un tambour (3) disposé dans le corps (2), dans lequel les articles de linge destinés à être séchés sont chargés, une conduite (4) débouchant sur le tambour (3), dans laquelle circule l'air de séchage, au moins deux bobines (5) disposées dans la conduite (4), et un filtre (6) mis en œuvre dans la conduite (4), formé sous la forme d'une courroie continue tendue entre les bobines (5) de façon à tourner conjointement avec les bobines (5), servant à retenir des particules telles que des fibres ou des peluches dans l'air de séchage.
PCT/EP2018/076823 2017-12-25 2018-10-02 Sèche-linge pourvu d'un filtre Ceased WO2019129399A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2017/21628 2017-12-25
TR2017/21628A TR201721628A2 (fr) 2017-12-25 2017-12-25

Publications (1)

Publication Number Publication Date
WO2019129399A1 true WO2019129399A1 (fr) 2019-07-04

Family

ID=63762524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/076823 Ceased WO2019129399A1 (fr) 2017-12-25 2018-10-02 Sèche-linge pourvu d'un filtre

Country Status (2)

Country Link
TR (1) TR201721628A2 (fr)
WO (1) WO2019129399A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1951950A1 (fr) 2005-11-18 2008-08-06 BSH Bosch und Siemens Hausgeräte GmbH Systeme de filtre a peluches et procede de nettoyage d'un tel systeme
EP2495363A1 (fr) * 2011-03-01 2012-09-05 V-Zug AG Sèche-linge doté d'un nettoyage du filtre à peluches
EP2620539A1 (fr) * 2012-01-26 2013-07-31 Electrolux Home Products Corporation N.V. Appareil de traitement du linge
JP2015002847A (ja) * 2013-06-20 2015-01-08 株式会社東芝 ドラム式洗濯乾燥機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1951950A1 (fr) 2005-11-18 2008-08-06 BSH Bosch und Siemens Hausgeräte GmbH Systeme de filtre a peluches et procede de nettoyage d'un tel systeme
EP2495363A1 (fr) * 2011-03-01 2012-09-05 V-Zug AG Sèche-linge doté d'un nettoyage du filtre à peluches
EP2620539A1 (fr) * 2012-01-26 2013-07-31 Electrolux Home Products Corporation N.V. Appareil de traitement du linge
JP2015002847A (ja) * 2013-06-20 2015-01-08 株式会社東芝 ドラム式洗濯乾燥機

Also Published As

Publication number Publication date
TR201721628A2 (fr) 2019-07-22

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