EP3638838B1 - Condensation laundry dryer - Google Patents

Condensation laundry dryer Download PDF

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Publication number
EP3638838B1
EP3638838B1 EP18750262.0A EP18750262A EP3638838B1 EP 3638838 B1 EP3638838 B1 EP 3638838B1 EP 18750262 A EP18750262 A EP 18750262A EP 3638838 B1 EP3638838 B1 EP 3638838B1
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EP
European Patent Office
Prior art keywords
line
condensate
condensate tank
tank
laundry dryer
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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
EP18750262.0A
Other languages
German (de)
French (fr)
Other versions
EP3638838C0 (en
EP3638838A1 (en
Inventor
Izidor RUPNIK
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.)
Gorenje gospodinjski aparati dd
Original Assignee
Gorenje gospodinjski aparati dd
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Publication date
Application filed by Gorenje gospodinjski aparati dd filed Critical Gorenje gospodinjski aparati dd
Publication of EP3638838A1 publication Critical patent/EP3638838A1/en
Application granted granted Critical
Publication of EP3638838B1 publication Critical patent/EP3638838B1/en
Publication of EP3638838C0 publication Critical patent/EP3638838C0/en
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    • 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 refers to a condensation laundry dryer comprising a steam generator, and in particular to an automatic filling of the steam generator tank with water.
  • distilled water For the steam generator of the condensation laundry dryer to operate, distilled water is usually utilised. Distilled water condensate can be utilized to this extent, which originates during the drying process in the heat exchanger and the condenser, respectively, where water steam condensates. Water flows in the steam generator tank via a condensate pipe system in the laundry dryer, wherein the condensate tank is filled simultaneously. Since the condensate tank has to be emptied on a regular basis, a user can direct the pipe system directly into a drain resulting in the steam generator tank not to be filled.
  • Known embodiments of the automatic filling the steam generator tank depend on the attachment of the condensate pipe.
  • the tank thereof is filled directly from the condensate tank.
  • Such a solution comprises a system which enables overflow from the condensate tank further into the steam generator tank. Since each emptying of the condensate tank by the user is rather a time-consuming operation, some dryers offer limited possibilities of attaching the condensate pipe directly into the drain. In case the condensate drain pipe is attached directly into the drain, manual adding of distilled water into the condensate tank and, respectively, directly into the housing of the condensate tank is required.
  • a drying apparatus comprising a steam generator, that must be attached to a water supply pipeline in order to operate.
  • a drawback of such a system is additional water consumption and a need for additional water conduit.
  • a drying apparatus comprising a steam generator is known from the publication of the international patent application No. WO 2011/128241 formed in a manner that a system for draining the condensate fills the condensate tank, and simultaneously through a housing of the condensate tank also the steam generator tank.
  • the condensate pipe with said apparatus is attached directly into the drain, the water inlet into the steam generator tank is disabled. In such a case it is necessary to directly pour distilled water into the housing of the condensate tank.
  • Moist air that is warmed up in a condensation drying apparatus 1 during drying process is cooled down in a condenser 2.
  • the condensate flows out of said condenser 2 via a channel 3 and via a pipe 4 into a housing 5 of a pump 6, which in turn pumps condensate via a line 7 to a condensate tank 8.
  • Said housing 5 with the pump 6 is arranged in the region under said condenser 2, whereas said condensate tank 8 is arranged in the region above a drum 9 of the drying apparatus 1.
  • Said condensate tank 8 is arranged in a receptacle 10 being fluidly connected via a draining line 11 with a container 12' for the water for a steam generator 12, which is normally arranged in the lower region of the drying apparatus 1 under said condenser 2.
  • a branching element 13 is connected to said line 7 for transporting the condensate from the pump 6 to the condensate tank 8, said branching element 13 divides said line 7 into two separate lines, that is a first line 14 having a lower flow capacity, and a second line 15 having a larger flow capacity.
  • said branching element 13 is selected as a reducing tee (T element), for example, which is connected via a first, smaller outlet aperture with said first line 14, and which is connected via a second, larger aperture with said second line 15. It is achieved in this manner that the condensate flow through the first, smaller aperture and, respectively, through the first line 14 is smaller than the condensate flow through the second, larger aperture and, respectively, through the second line 15.
  • T element reducing tee
  • said first, smaller line 14 is constantly fluidly connected with the receptacle 10 for the condensate tank 8
  • the second, larger line 15 is via a pipe connection 16 only optionally directly fluidly connected with the condensate tank 8.
  • the second line 15 is exposed and, respectively, accessible the user at least in the region of said pipe connection 16, preferably in the outer region of the condensation dryer.
  • both the line 7 for transproting condensate from the pump 6 to the tank 8 and the second line 15 to extend in the back wall 17 region of the drying apparatus 1.
  • the inflow of the water and, respectively, the condensate into the water container 12' of the steam generator 12 does not depend on how and, respectively, where the line 15 for condensate transportation is attached to, that is either to the condensate tank 8 or to the alternative condensate sink.
  • the water container 12' as well as the steam generator 12 is constantly filled.
  • the container 12' of the steam generator 12 is full, the excessive water overflows into the housing 5 of the pump 6.
  • Due to the higher condensate level a float 18 rises consequently, and when it reaches a certain level the drying apparatus is turned off via a switch and the user is alerted about emptying the condensate tank 8.
  • the steam generator 12 uses a condensate collecting in the water container 12' of the steam generator 12. If said container 12' of the steam generator 12 lacks water, a water level sensor 19 indicates a low level condition. The user fills up the water container 12' in a manner to pull the condensate tank 8 out of the drying apparatus 1 and pours distilled water from the tank 8 into said receptacle 10 for the tank 8.

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

Description

  • The present invention refers to a condensation laundry dryer comprising a steam generator, and in particular to an automatic filling of the steam generator tank with water.
  • For the steam generator of the condensation laundry dryer to operate, distilled water is usually utilised. Distilled water condensate can be utilized to this extent, which originates during the drying process in the heat exchanger and the condenser, respectively, where water steam condensates. Water flows in the steam generator tank via a condensate pipe system in the laundry dryer, wherein the condensate tank is filled simultaneously. Since the condensate tank has to be emptied on a regular basis, a user can direct the pipe system directly into a drain resulting in the steam generator tank not to be filled.
  • Known embodiments of the automatic filling the steam generator tank depend on the attachment of the condensate pipe. With some drying apparatuses comprising an embedded steam generator, the tank thereof is filled directly from the condensate tank. Such a solution comprises a system which enables overflow from the condensate tank further into the steam generator tank. Since each emptying of the condensate tank by the user is rather a time-consuming operation, some dryers offer limited possibilities of attaching the condensate pipe directly into the drain. In case the condensate drain pipe is attached directly into the drain, manual adding of distilled water into the condensate tank and, respectively, directly into the housing of the condensate tank is required.
  • Furthermore, a drying apparatus is known comprising a steam generator, that must be attached to a water supply pipeline in order to operate. A drawback of such a system is additional water consumption and a need for additional water conduit.
  • Yet further, a drying apparatus comprising a steam generator is known from the publication of the international patent application No. WO 2011/128241 formed in a manner that a system for draining the condensate fills the condensate tank, and simultaneously through a housing of the condensate tank also the steam generator tank. However, when the condensate pipe with said apparatus is attached directly into the drain, the water inlet into the steam generator tank is disabled. In such a case it is necessary to directly pour distilled water into the housing of the condensate tank.
  • It is the object of the present invention to create a condensation laundry dryer where a steam generator tank is automatically filled with water when the laundry dryer attached directly into a drain.
  • According to the present invention, the object as set above is solved by features set forth in claim 1. Details of the invention are further disclosed in respective subclaims.
  • The invention is further described in detail by way of non-limiting embodiment, and with a reference to the accompanying drawing, showing a schematic view of a condensation laundry dryer according to the invention.
  • Moist air that is warmed up in a condensation drying apparatus 1 during drying process is cooled down in a condenser 2. The condensate flows out of said condenser 2 via a channel 3 and via a pipe 4 into a housing 5 of a pump 6, which in turn pumps condensate via a line 7 to a condensate tank 8. Said housing 5 with the pump 6 is arranged in the region under said condenser 2, whereas said condensate tank 8 is arranged in the region above a drum 9 of the drying apparatus 1.
  • Said condensate tank 8 is arranged in a receptacle 10 being fluidly connected via a draining line 11 with a container 12' for the water for a steam generator 12, which is normally arranged in the lower region of the drying apparatus 1 under said condenser 2. In the close vicinity of said condensate tank 8 a branching element 13 is connected to said line 7 for transporting the condensate from the pump 6 to the condensate tank 8, said branching element 13 divides said line 7 into two separate lines, that is a first line 14 having a lower flow capacity, and a second line 15 having a larger flow capacity. Said division is achieved in a manner that said branching element 13 is selected as a reducing tee (T element), for example, which is connected via a first, smaller outlet aperture with said first line 14, and which is connected via a second, larger aperture with said second line 15. It is achieved in this manner that the condensate flow through the first, smaller aperture and, respectively, through the first line 14 is smaller than the condensate flow through the second, larger aperture and, respectively, through the second line 15.
  • Further, it is provided according to the present invention that said first, smaller line 14 is constantly fluidly connected with the receptacle 10 for the condensate tank 8, whereas the second, larger line 15 is via a pipe connection 16 only optionally directly fluidly connected with the condensate tank 8. Namely, it is a user of the drying apparatus 1 who decides whether the second line 15 is fluidly connected with the condensate tank 8, or is, for instance, fluidly connected to an external condensate sink, not shown, which does not constitute the drying apparatus 1. In order to enable the user to switch said second line 15 between the position in which the second line 15 is connected with the condensate tank 8, and the position in which the second line 15 is disengaged from the condensate tank 8, the second line 15 is exposed and, respectively, accessible the user at least in the region of said pipe connection 16, preferably in the outer region of the condensation dryer. Herewith, it is deemed for both the line 7 for transproting condensate from the pump 6 to the tank 8 and the second line 15 to extend in the back wall 17 region of the drying apparatus 1.
  • According to the invention, it is achieved in the above described manner that the inflow of the water and, respectively, the condensate into the water container 12' of the steam generator 12 does not depend on how and, respectively, where the line 15 for condensate transportation is attached to, that is either to the condensate tank 8 or to the alternative condensate sink. As a result, the water container 12' as well as the steam generator 12 is constantly filled. When the container 12' of the steam generator 12 is full, the excessive water overflows into the housing 5 of the pump 6. Due to the higher condensate level, a float 18 rises consequently, and when it reaches a certain level the drying apparatus is turned off via a switch and the user is alerted about emptying the condensate tank 8.
  • In order to operate, the steam generator 12 uses a condensate collecting in the water container 12' of the steam generator 12. If said container 12' of the steam generator 12 lacks water, a water level sensor 19 indicates a low level condition. The user fills up the water container 12' in a manner to pull the condensate tank 8 out of the drying apparatus 1 and pours distilled water from the tank 8 into said receptacle 10 for the tank 8.

Claims (4)

  1. A condensation laundry dryer (1) comprising a condenser (2) from which condensate flows out via a channel (3) and a pipe (4) into a pump (6) housing (5), which in turn via a condensate transporting line (7) pumps condensate to a condensate tank (8), wherein said housing (5) with the pump i (6) is arranged in the region below said condenser (2) whereas said condensate tank (8) is arranged in the region above a drum (9) of the drying apparatus (1), and a steam generator (12) with a water container (12'), wherein the latter is automatically filled with the water, wherein the condensate tank (8) is arranged in a receptacle (10) which is via a draining line (11) fluidly connected with the container (12') of water for the steam generator (12), wherein in the close vicinity of said condensate tank (8), a branching element (13) is connected to the condensate transporting line (7) for transporting the condensate from the pump (6) to the condensate tank (8), said branching element (13) divides said condensate transporting line (7) into two separate lines, that is a first line (14) having a lower flow capacity, and a second line (15) having a larger flow capacity, wherein said first line (14) is constantly fluidly connected with the receptacle (10) for the condensate tank (8), characterized in that the second line (15) is via a pipe connection (16) only optionally in a direct fluid connection with the condensate tank (8) or is fluidly connected to an external condensate sink which does not constitute the drying apparatus (1).
  2. A condensation laundry dryer according to claim 1, characterized in that said division is achieved in a manner that said branching element (13) is selected as a reducing tee (T element), which is connected via a first, smaller outlet aperture with said first line (14), and which is connected via a second, larger aperture with said second line (15).
  3. A condensation laundry dryer according to any of the preceding claims, characterized in that a decision whether the second line (15) is fluidly connected with the condensate tank (8) or is fluidly connected to said external condensate sink rests with a user of said drying apparatus (1), wherein in order to enable the user to switch said second line (15) between the position in which the second line (15) is connected with the condensate tank (8), and the position in which the second line (15) is disengaged from the condensate tank (8).
  4. A condensation laundry dryer according to claim 3, characterized in that the second line (15) is exposed and, respectively, accessible to a user at least in the region of a pipe connection (16), preferably in the outer region of the condensation dryer.
EP18750262.0A 2017-06-16 2018-06-13 Condensation laundry dryer Active EP3638838B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI201700172A SI25452A (en) 2017-06-16 2017-06-16 Condensing dryer
PCT/IB2018/054288 WO2018229667A1 (en) 2017-06-16 2018-06-13 Condensation laundry dryer

Publications (3)

Publication Number Publication Date
EP3638838A1 EP3638838A1 (en) 2020-04-22
EP3638838B1 true EP3638838B1 (en) 2024-04-10
EP3638838C0 EP3638838C0 (en) 2024-04-10

Family

ID=63108602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18750262.0A Active EP3638838B1 (en) 2017-06-16 2018-06-13 Condensation laundry dryer

Country Status (4)

Country Link
EP (1) EP3638838B1 (en)
CN (1) CN110753767B (en)
SI (1) SI25452A (en)
WO (1) WO2018229667A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110592908A (en) * 2019-10-08 2019-12-20 海信（山东）冰箱有限公司 Clothes dryer
CN111607946A (en) * 2020-05-09 2020-09-01 海信（山东）冰箱有限公司 Clothes care equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10259343B4 (en) * 2002-12-18 2013-01-17 BSH Bosch und Siemens Hausgeräte GmbH Condensing tumble dryer and condensate collection vessel
EP2014820B1 (en) * 2007-07-13 2010-01-27 Electrolux Home Products Corporation N.V. Method of determining clogging of the steam generator tank filter of a home laundry drier, and home laundry drier implementing such a method
DE102010002661A1 (en) * 2010-03-08 2011-09-08 BSH Bosch und Siemens Hausgeräte GmbH Device for supplying rinse water for domestic appliance, particularly clothes dryer or dishwasher, comprises condensation container for condensation water, pump, controllable valve with feed channel, and two drain channels
SI23343A (en) * 2010-04-15 2011-10-28 Gorenje Gospodinjski Aparati, D.D. Condensation based laundry dryer
WO2014198303A1 (en) * 2013-06-11 2014-12-18 Electrolux Appliances Aktiebolag Laundry treatment apparatus having a condensate tank and method of condensate collecting and draining
PL2826909T3 (en) * 2013-07-19 2022-02-14 Electrolux Appliances Aktiebolag Method for operating a steam generation unit in a laundry dryer and method of operating a laundry dryer

Also Published As

Publication number Publication date
SI25452A (en) 2018-12-31
CN110753767A (en) 2020-02-04
EP3638838C0 (en) 2024-04-10
WO2018229667A1 (en) 2018-12-20
EP3638838A1 (en) 2020-04-22
CN110753767B (en) 2022-05-10

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