EP4389958B1 - Wäschetrockner - Google Patents

Wäschetrockner

Info

Publication number
EP4389958B1
EP4389958B1 EP23207218.1A EP23207218A EP4389958B1 EP 4389958 B1 EP4389958 B1 EP 4389958B1 EP 23207218 A EP23207218 A EP 23207218A EP 4389958 B1 EP4389958 B1 EP 4389958B1
Authority
EP
European Patent Office
Prior art keywords
sump
suction port
pump
liquid
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.)
Active
Application number
EP23207218.1A
Other languages
English (en)
French (fr)
Other versions
EP4389958A1 (de
Inventor
Furkan SAHIN
Emre GEZE
Batuhan Guneri
Selcuk TABAK
Vedat Ulusoy
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 EP4389958A1 publication Critical patent/EP4389958A1/de
Application granted granted Critical
Publication of EP4389958B1 publication Critical patent/EP4389958B1/de
Active 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning 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

Definitions

  • the present invention relates to a laundry dryer wherein the wrinkles on the laundry are removed.
  • the basic operation method of said embodiments is to remove the wrinkles in the laundry by delivering steam into the drum.
  • the condensate formed in a condenser which dehumidifies the drying air is collected in a sump on the casing.
  • the condensate collected in the sump is generally delivered through a discharge pump to a tank which is disposed in the body of the laundry dryer, which is detachably attached to the body and which enables the user to discharge the condensate.
  • a steam sprayer comprising a condensation pump which is provided on the casing, a waste water chamber which is provided on the casing and wherein the condensate is collected, a spray pump which is connected to the waste water chamber and which enables the water collected in the waste water chamber to be delivered into the drum, a spray hose which is connected to the spray pump and which extends to the port of the drum, and at least one nozzle which is connected to the end of the spray hose and which delivers the water steam into the drum.
  • Document EP 3 933 097 A1 discloses a laundry dryer according to the preamble of claim 1 in which a three-way valve is used for supplying condensate water from the sump to the fluid inlet of the drum.
  • the aim of the present invention is the realization of a laundry dryer wherein the wrinkles in the laundry are reduced in a simple, cost-effective and efficient manner.
  • 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 drum which is disposed in the body and wherein the laundry to be dried is loaded; a condenser which is disposed in the body and which dehumidifies the drying air; at least one sump wherein the condensate resulting from the moisture condensed in the condenser is collected; a discharge pump which is disposed in the sump; a discharge line one end of which is connected to the discharge pump and the other end to a tank and which enables the condensate taken from the sump to be transferred to the tank by means of the discharge pump; at least one fluid inlet which opens into the drum so as to deliver liquid and/or steam into the drum; at least one supply pump which is disposed in the sump; and at least one delivery line one end of which
  • the discharge pump is positioned in the sump so as to be at a higher level than the supply pump, and the distance, to the base of the sump, of the first suction port which is provided on the discharge pump and which enables the water in the sump to be taken into the discharge pump is greater than the distance, to the base of the sump, of the second suction port which is provided on the supply pump and which enables the liquid in the sump to be taken into the supply pump. Since the first suction port is higher than the second suction port compared to the base of the sump, the condensate volume remaining between the first suction port and the second suction port is collected to be delivered to the fluid inlet. Thus, the need for controlling the operating times of the discharge pump and the supply pump separately is eliminated. Even if the discharge pump is continuously operated, there is always liquid (condensate) in the sump to be delivered to the fluid inlet.
  • the first suction port and/or the second suction port are positioned on the lower face of the discharge pump and/or the supply pump facing the base of the sump.
  • the vacuum effect is increased and the liquid in the sump is enabled to be easily sucked into the discharge pump and/or the supply pump.
  • the supply pump is disposed on the lower surface of the sump.
  • the second suction port is positioned so as to be flush with the base of the sump or at a very small distance therefrom. The reason for this is to use the liquid collected in the sump efficiently and to maximize the hydrostatic pressure created by the liquid in the sump at the second suction port.
  • the fluid inlet there is at least one spraying member which enables the liquid supplied to the fluid inlet to be sprayed into the drum through the fluid inlet.
  • the spraying member which has a narrow outlet acts as an injector. The liquid sprayed into the drum in the form of small water droplets evaporates in the drum. Thus, the wrinkles in the laundry are effectively reduced.
  • the supply pump is a centrifugal pump or a diaphragm pump and the delivery line is manufactured from flexible material.
  • the flow rate of a centrifugal pump is relatively high compared to other pumps. Therefore, when it is preferred by the manufacturer to spray the liquid in the sump into the drum more quickly, a centrifugal pump is used.
  • the reason for using a diaphragm pump is that the supply pump or the second suction port is easily positioned in the sump. Manufacturing the delivery line from a flexible material provides ease of assembly for the manufacturer. Moreover, the maintenance and repair process is enabled to be completed in a shorter time.
  • a laundry dryer is realized with a simplified structure and increased wrinkle removal performance in a cost-efficient manner by using the optimum number of components.
  • the laundry dryer (1) comprises a body (2); a drum (3) which is disposed in the body (2) and wherein the laundry to be dried is loaded; a condenser (4) which is disposed in the body (2) and which dehumidifies the drying air; at least one sump (5) wherein the liquid formed in the condenser (4) is collected; a tank (7) which is connected to the sump (5) by means of a discharge line (6) and which receives the liquid in the sump (5); a discharge pump (8) which is disposed on the discharge line (6) and which is positioned in the sump (5); and at least one fluid inlet (9) which opens into the drum so as to enable the fluid to be supplied into the drum (3).
  • the water formed in the condenser (4) is first collected in the sump (5).
  • the laundry dryers (1) there is generally a casing in the body (2) and at the bottom of the body (2), whereon components such as heat exchanger are placed.
  • the sump (5) is preferred to be positioned on the casing.
  • the condensate collected in the sump (5) is delivered to the tank (7) through the discharge line (6) by the discharge pump (8).
  • the tank (7) can be preferably attached and detached by the user.
  • the condensate directed to the tank (7) is discharged by the user.
  • There is a fluid inlet (9) which opens into the drum (3) to deliver fluids such as steam or water droplets etc. into the drum (3).
  • the laundry dryer (1) of the present invention comprises at least one supply pump (10) which is disposed in the sump (5) and at least one delivery line (11) one end of which is connected to the fluid inlet (9) and the other end to the supply pump (10) and which enables the liquid to be taken from the sump (5) to be delivered to the fluid inlet (9) by means of the supply pump (10).
  • the condensate in the sump (5) is being delivered to the tank (7) through the discharge line (6)
  • the condensate in the sump (5) is delivered to the fluid inlet (9) through the delivery line (11).
  • the need for using any valve to direct the water in the sump (5) to the tank (7) or the fluid inlet (9) is eliminated.
  • devices such as valves are not used, the strain on the control unit resulting from complex algorithms and therefore the occurrence of various technical problems are prevented.
  • the discharge pump (8) there is at least one first suction port (12) which enables the liquid in the sump (5) to be taken into the discharge pump (8), and on the supply pump (10), there is at least one second suction port (13) which enables the liquid in the sump (5) to be supplied into the supply pump (10), and the discharge pump (8) is positioned in the sump (5) such that the second suction port (13) is lower than the first suction port (12).
  • the discharge pump (8) delivers the liquid collected above the level of the first suction port (12) to the tank (7).
  • the first suction port (12) and/or the second suction port (13) faces the base of the sump (5).
  • the first suction port (12) is positioned at the base of the discharge pump (9) and the second suction port (13) is positioned at the base of the supply pump (10).
  • the supply pump (10) is disposed on the base of the sump (5).
  • the liquid is prevented from always being present in the sump (5) and the liquid collected in the sump (5) is prevented from causing bad odor over time.
  • the spraying member (14) on the fluid inlet (9), there is at least one spraying member (14) which enables the water carried by the delivery line (11) to be sprayed into the drum (3) in the form of droplets.
  • the spraying member (14) sprays extremely small amounts of water droplets and thus the water droplets sprayed from the spraying member (14) evaporate instantly. Therefore, the spraying member (14) is also used as a steam provider.
  • the wrinkle performance is increased at an optimum level.
  • the supply pump (10) is a centrifugal pump or a diaphragm pump.
  • a centrifugal pump By using a centrifugal pump, the flow rate of the liquid supplied to the fluid inlet (9) is increased.
  • the diaphragm pump is preferred because of its relatively smaller size and its ability to enable the second suction port (13) to be easily positioned in the region preferred by the manufacturer in the sump (5).
  • the delivery line (11) is manufactured from a flexible material.
  • the placement of the delivery line (11) between the supply pump (10) and the fluid inlet (9) is facilitated.
  • a laundry dryer (1) is realized, wherein the wrinkles in the laundry are removed with a simple and cost-efficient embodiment by placing a supply pump (10) in the sump (5) where the condensate formed in the condenser (4) is collected in addition to the discharge pump (8).
  • a supply pump (10) in the sump (5) where the condensate formed in the condenser (4) is collected in addition to the discharge pump (8).
  • the water to be supplied to the fluid inlet (9) is enabled to be always kept ready in the sump (5).

Landscapes

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

Claims (7)

  1. Ein Wäschetrockner (1) umfasst einen Körper (2); eine Trommel (3), die in dem Körper (2) angeordnet ist und in die die zu trocknende Wäsche geladen wird; einen Kondensator (4), der in dem Körper (2) angeordnet ist und der die Trocknungsluft entfeuchtet; mindestens einen Sumpf (5), in dem die in dem Kondensator (4) gebildete Flüssigkeit gesammelt wird; einen Tank (7), der mit dem Sumpf (5) mittels einer Auslassleitung (6) verbunden ist und der die Flüssigkeit in dem Sumpf (5) aufnimmt; eine Auslasspumpe (8), die an der Auslassleitung (6) angeordnet ist und die in dem Sumpf (5) positioniert ist; und mindestens einen Flüssigkeitszulauf (9), der in die Trommel mündet, um zu ermöglichen, dass die Flüssigkeit in die Trommel (3) zugeführt wird, mindestens eine Zuführungsleitung (11), von der ein Ende mit dem Flüssigkeitszulauf (9) verbunden ist und die ermöglicht, dass die Flüssigkeit aus dem Sumpf (5) entnommen wird, um zu dem Flüssigkeitszulauf (9) zugeführt zu werden, gekennzeichnet ist es dadurch, dass der Wäschetrockner zusätzlich umfasst:
    mindestens eine Versorgungspumpe (10), die in dem Sumpf (5) angeordnet ist, und wobei das andere Ende der mindestens einen Zuführungsleitung (11) mit der Versorgungspumpe (10) verbunden ist, so dass die aus dem Sumpf (5) entnommene Flüssigkeit mittels der Versorgungspumpe (10) zu dem Flüssigkeitszulauf (9) gefördert wird.
  2. Ein Wäschetrockner (1) wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass mindestens ein erster Ansauganschluss (12), der an der Auslasspumpe (8) vorgesehen ist und der es ermöglicht, die Flüssigkeit im Sumpf (5) in die Auslasspumpe (8) zu bringen, mindestens eine zweite Ansaugöffnung (13), die an der Versorgungspumpe (10) vorgesehen ist und die es ermöglicht, die Flüssigkeit im Sumpf (5) in die Versorgungspumpe (10) zu fördern, und die Auslasspumpe (8), die im Sumpf (5) so positioniert ist, dass die zweite Ansaugöffnung (13) tiefer liegt als der erste Ansauganschluss (12).
  3. Ein Wäschetrockner (1) wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass der erste Ansauganschluss (12) und/oder die zweite Ansaugöffnung (13) dem Boden des Sumpfes (5) zugewandt ist.
  4. Ein Wäschetrockner (1) wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass die Versorgungspumpe (10) auf dem Boden des Sumpfes (5) angeordnet ist.
  5. Ein Wäschetrockner (1) wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass mindestens ein Sprühelement (14) am Flüssigkeitszulauf (9) vorgesehen ist und es ermöglicht, das von der Zuführungsleitung (11) mitgeführte Wasser in Form von Tröpfchen in die Trommel (3) zu sprühen.
  6. Ein Wäschetrockner (1) wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass die Versorgungspumpe (10) eine Kreiselpumpe oder eine Membranpumpe ist.
  7. Ein Wäschetrockner (1) wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass die Zuführungsleitung (11) aus einem flexiblen Material hergestellt ist.
EP23207218.1A 2022-12-23 2023-10-31 Wäschetrockner Active EP4389958B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR202220285 2022-12-23

Publications (2)

Publication Number Publication Date
EP4389958A1 EP4389958A1 (de) 2024-06-26
EP4389958B1 true EP4389958B1 (de) 2025-08-06

Family

ID=88647398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23207218.1A Active EP4389958B1 (de) 2022-12-23 2023-10-31 Wäschetrockner

Country Status (1)

Country Link
EP (1) EP4389958B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2543700T3 (es) * 2011-05-03 2015-08-21 Miele & Cie. Kg Secadora de ropa
PL3004450T3 (pl) * 2013-05-24 2023-02-06 Electrolux Appliances Aktiebolag Suszarka do prania oraz sposób sterowania suszarką do prania
FR3006336B1 (fr) * 2013-06-03 2015-12-11 Fagorbrandt Sas Procede de commande en fonctionnement d'un appareil de sechage du linge et appareil de sechage du linge associe
WO2020015914A1 (en) 2018-07-19 2020-01-23 Arcelik Anonim Sirketi Steam sprayer
TR202010194A2 (tr) * 2020-06-29 2022-01-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Bi̇r çamaşir kurutucu

Also Published As

Publication number Publication date
EP4389958A1 (de) 2024-06-26

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