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WO2018069019A1 - A dishwasher - Google Patents

A dishwasher Download PDF

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Publication number
WO2018069019A1
WO2018069019A1 PCT/EP2017/073971 EP2017073971W WO2018069019A1 WO 2018069019 A1 WO2018069019 A1 WO 2018069019A1 EP 2017073971 W EP2017073971 W EP 2017073971W WO 2018069019 A1 WO2018069019 A1 WO 2018069019A1
Authority
WO
WIPO (PCT)
Prior art keywords
pocket
drying
dishwasher
collection
phase change
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/EP2017/073971
Other languages
French (fr)
Inventor
Erkan KUTUK
Mahmut Murat GOCMEN
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 WO2018069019A1 publication Critical patent/WO2018069019A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0013—Drying phases, including dripping-off phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a dishwasher with improved drying efficiency.
  • the dishwasher realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises a body, a washing tub provided on the body, in which items to be washed are placed, and a drying pocket provided between the washing tub and the body.
  • the drying pocket is provided between the body and the washing tub.
  • Phase change material is provided in the drying pocket. Phase change material changes phase in drying step.
  • the dishwasher of the invention comprises a cold surface, a hot surface and a collection pocket.
  • the cold surface is formed on the portion of the drying pocket contacting the body, and the hot surface is formed on the portion of the drying pocket contacting the washing tub.
  • the collection pocket enables collection of the phase change material changing phase between the hot surface and the cold surface.
  • the collection pocket is arranged proximate to the cold surface in the drying pocket, without contacting the hot surface.
  • an opening is provided on the collection pocket, opening from the collection pocket towards the drying pocket.
  • the opening is controlled by means of a valve.
  • the dishwasher comprises a control unit enabling controlling of the valve according to the washing steps.
  • the phase change material (PCM) provided in the collection pocket is transferred to the drying pocket according to the washing step.
  • the valve enables the phase change material to stay in the collection pocket in the washing step, and to be transferred to the drying pocket in the drying step.
  • one surface of the collection pocket is the cold surface.
  • the collection pocket has a trapezoid shape. It has a shape tapering from the cold surface to the hot surface. By this, the collection pocket is enabled to be further from the hot surface.
  • a plurality of protrusions are provided on the cold surface.
  • At least one fan is provided on the cold surface.
  • Figure 2 is a schematic view of the drying pocket and the collection pocket.
  • Figure 3 is a schematic view of the drying pocket and the fins.
  • Figure 4 is a schematic view of the drying pocket and the fan.
  • the dishwasher (1) comprises a body (2), a washing tub (3) provided on the body (2), in which washing is performed, and a drying pocket (4) provided between the washing tub (3) and the body (2), in which phase change material (PCM) is provided.
  • PCM phase change material
  • the phase change material (PCM) enables enhancing of the drying efficiency. The duration and energy used for drying is thus reduced.
  • the dishwasher (1) of the invention comprises a drying pocket (4) having a hot surface (H) on its portion contacting the washing tub (3), a cold surface (C) on its portion contacting the body (2), and a collection pocket (5) enabling collection of the phase change material (PCM) after it changes phase between the cold surface (C) and the hot surface (H).
  • the drying pocket (4) is provided between the body (2) and the washing tub (3).
  • the cold surface (C) is formed on the portion of the drying pocket (4) contacting the body(2)
  • the hot surface (H) is formed on the portion of the drying pocket (4) contacting the washing tub (3) due to hot water used in the washing tub (3).
  • the phase change material (PCM) provided in the drying pocket (4) evaporates through the heat coming from the hot surface (H). Evaporating particles of the phase change material dispersedly move on the drying pocket (4) and condense by coinciding with the cold surface (C). The phase change material particles shifting to liquid phase again, are collected in the collection pocket (5).
  • the dishwasher (1) comprises a collection pocket (5) arranged in the drying pocket (4) proximate to the cold surface (C), so as not to contact the hot surface (H).
  • the collection pocket (5) is as close to the cold surface (C) as possible, and is far from the hot surface (H).
  • the phase change material particles moving as vapor in the drying pocket (4) condense by coinciding with the cold surface (C) and are collected in the collection pocket (5). Since the collection pocket (5) is further from the hot surface (H), the phase change material (PCM) does not evaporate again when it is in the collection pocket (5).
  • the dishwasher (1) comprises an opening (6) opening from the collection pocket (5) towards the drying pocket (4), and a valve (7) enabling controlling of the opening (6).
  • the phase change material (PCM) being in liquid phase in the collection pocket (5), is transferred to be used again to the drying pocket (4) by means of the opening (6). Transferring of the phase change material (PCM) from the collection pocket (5) to the drying pocket (4) is controlled by means of the valve (7) provided on the opening (6).
  • the dishwasher (1) comprises a control unit (8) enabling controlling of the valve (7) according to the washing steps performed in the washing tub (3).
  • the control unit (8) enables opening and closing of the valve (7) according to the washing steps performed in the dishwasher (1).
  • the valve (7) enables the phase change material to stay in the collection pocket (5) in the washing step, and to be transferred from the collection pocket (5) to the drying pocket (4) in the drying step.
  • the washing tub (3) needs to be kept hot in the washing step for sterilization of the items to be washed. Therefore, the phase change material is located in the collection pocket (5) in the washing step, and it does not draw heat from the washing cabinet.
  • the valve (7) is opened by means of the control unit (8), and the phase change material is transferred from the collection pocket (5) to the drying pocket (4).
  • the phase change material evaporates by drawing heat from the washing tub (3) by means of the hot surface (H). The temperature of the washing tub (3) is thus reduced and the drying step is efficiently performed in a short time.
  • the dishwasher (1) comprises a collection pocket (5) whose one surface is the cold surface (C).
  • the cold surface (C) forms a surface of the collection pocket (5).
  • the drying pocket (4) comprises a trapezoid shaped collection pocket (5) tapering from the hot surface (H) to the cold surface (C).
  • the collection pocket (5) is enabled to have a maximum volume further from the hot surface (H).
  • the drying pocket (4) comprises a plurality of fins (9) provided on the cold surface (C).
  • the cold surface area is increased by means of the fins (9) enabling falling of the temperature of the cold surface (C).
  • the phase change materials can thus condense more rapidly.
  • the drying pocket (4) comprises at least one fan (10) provided on the cold surface (C). Enforced transfer is applied and heat transfer is increased thanks to the fan (10). Thus the heat of the cold surface (C) is enabled to fall.
  • a dishwasher (1) with improved drying efficiency is realized with the present invention.
  • the drying step is performed more efficiently by means of a drying pocket (4) in which phase change material (PCM) is provided, being used between the washing tub (3) and the body (2).
  • PCM phase change material
  • the energy consumption and time used is thus reduced.
  • the phase change material is used again at the same performance level thanks to the collection pocket (5) provided in the drying pocket (4).
  • phase change material according to the washing steps of the dishwasher (1) is provided.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a dishwasher (1 ) comprising a body (2), a washing tub (3) provided on the body (2), in which washing is performed, and a drying pocket (4) provided between the washing tub (3) and the body (2), in which phase change material (PCM) is provided.

Description

A DISHWASHER
The present invention relates to a dishwasher with improved drying efficiency.
In a dishwasher, after applying the steps of washing and rinsing, the dishes are dried at the drying step. The drying step is of utmost importance for the dishes to come out of the dishwasher shinier and cleaner. In the drying step, water droplets on the dishes are removed from the dishes by being evaporated. The evaporated water droplets condense by coinciding with cold surfaces and humid air, and is discharged from the washing cabinet. In order for the drying step to be efficient, it is necessary to remove water vapor rapidly from the washing cabinet or to condense water vapor for removing from the washing cabinet after completion of the step. However, the water droplets on the dishes being evaporated, re-condensed and being discharged from the washing cabinet takes time. Therefore, the drying step takes a long time, leading to an increase in program duration and energy consumption. Energy saving programs have a reduced drying performance.
State of the art German patent application no. DE102009049066 discloses a dishwasher in which phase change material is used to improve drying performance.
The aim of the present invention is to realize a dishwasher with improved drying efficiency.
The dishwasher realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises a body, a washing tub provided on the body, in which items to be washed are placed, and a drying pocket provided between the washing tub and the body. The drying pocket is provided between the body and the washing tub. Phase change material is provided in the drying pocket. Phase change material changes phase in drying step.
The dishwasher of the invention comprises a cold surface, a hot surface and a collection pocket. The cold surface is formed on the portion of the drying pocket contacting the body, and the hot surface is formed on the portion of the drying pocket contacting the washing tub. The collection pocket enables collection of the phase change material changing phase between the hot surface and the cold surface.
In an embodiment of the invention, the collection pocket is arranged proximate to the cold surface in the drying pocket, without contacting the hot surface.
In an embodiment of the invention, an opening is provided on the collection pocket, opening from the collection pocket towards the drying pocket. The opening is controlled by means of a valve.
In an embodiment of the invention, the dishwasher comprises a control unit enabling controlling of the valve according to the washing steps. By this, the phase change material (PCM) provided in the collection pocket is transferred to the drying pocket according to the washing step.
In an embodiment of the invention, the valve enables the phase change material to stay in the collection pocket in the washing step, and to be transferred to the drying pocket in the drying step.
In an embodiment of the invention, one surface of the collection pocket is the cold surface.
In an embodiment of the invention, the collection pocket has a trapezoid shape. It has a shape tapering from the cold surface to the hot surface. By this, the collection pocket is enabled to be further from the hot surface.
In an embodiment of the invention, a plurality of protrusions are provided on the cold surface.
In an embodiment of the invention, at least one fan is provided on the cold surface.
The dishwasher realized to achieve the aim of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a perspective view of the dishwasher.
Figure 2 is a schematic view of the drying pocket and the collection pocket.
Figure 3 is a schematic view of the drying pocket and the fins.
Figure 4 is a schematic view of the drying pocket and the fan.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Dishwasher
  2. Body
  3. Washing tub
  4. Drying pocket
  5. Collection pocket
  6. Opening
  7. Valve
  8. Control unit
  9. Fin
  10. Fan
The symbols below are used in the text below for better understanding of the invention.
C- Cold surface
H- Hot surface
The dishwasher (1) comprises a body (2), a washing tub (3) provided on the body (2), in which washing is performed, and a drying pocket (4) provided between the washing tub (3) and the body (2), in which phase change material (PCM) is provided. The phase change material (PCM) enables enhancing of the drying efficiency. The duration and energy used for drying is thus reduced.
The dishwasher (1) of the invention comprises a drying pocket (4) having a hot surface (H) on its portion contacting the washing tub (3), a cold surface (C) on its portion contacting the body (2), and a collection pocket (5) enabling collection of the phase change material (PCM) after it changes phase between the cold surface (C) and the hot surface (H). The drying pocket (4) is provided between the body (2) and the washing tub (3). The cold surface (C) is formed on the portion of the drying pocket (4) contacting the body(2), and the hot surface (H) is formed on the portion of the drying pocket (4) contacting the washing tub (3) due to hot water used in the washing tub (3). The phase change material (PCM) provided in the drying pocket (4), evaporates through the heat coming from the hot surface (H). Evaporating particles of the phase change material dispersedly move on the drying pocket (4) and condense by coinciding with the cold surface (C). The phase change material particles shifting to liquid phase again, are collected in the collection pocket (5).
In an embodiment of the invention, the dishwasher (1) comprises a collection pocket (5) arranged in the drying pocket (4) proximate to the cold surface (C), so as not to contact the hot surface (H). The collection pocket (5) is as close to the cold surface (C) as possible, and is far from the hot surface (H). By this, the phase change material particles moving as vapor in the drying pocket (4), condense by coinciding with the cold surface (C) and are collected in the collection pocket (5). Since the collection pocket (5) is further from the hot surface (H), the phase change material (PCM) does not evaporate again when it is in the collection pocket (5).
In an embodiment of the invention, the dishwasher (1) comprises an opening (6) opening from the collection pocket (5) towards the drying pocket (4), and a valve (7) enabling controlling of the opening (6). The phase change material (PCM) being in liquid phase in the collection pocket (5), is transferred to be used again to the drying pocket (4) by means of the opening (6). Transferring of the phase change material (PCM) from the collection pocket (5) to the drying pocket (4) is controlled by means of the valve (7) provided on the opening (6).
In an embodiment of the invention, the dishwasher (1) comprises a control unit (8) enabling controlling of the valve (7) according to the washing steps performed in the washing tub (3). The control unit (8) enables opening and closing of the valve (7) according to the washing steps performed in the dishwasher (1).
In an embodiment of the invention, the valve (7) enables the phase change material to stay in the collection pocket (5) in the washing step, and to be transferred from the collection pocket (5) to the drying pocket (4) in the drying step. The washing tub (3) needs to be kept hot in the washing step for sterilization of the items to be washed. Therefore, the phase change material is located in the collection pocket (5) in the washing step, and it does not draw heat from the washing cabinet. When the dishwasher (1) takes the drying step, the valve (7) is opened by means of the control unit (8), and the phase change material is transferred from the collection pocket (5) to the drying pocket (4). The phase change material evaporates by drawing heat from the washing tub (3) by means of the hot surface (H). The temperature of the washing tub (3) is thus reduced and the drying step is efficiently performed in a short time.
In an embodiment of the invention, the dishwasher (1) comprises a collection pocket (5) whose one surface is the cold surface (C). The cold surface (C) forms a surface of the collection pocket (5). By this, heat is not lost during heat transfer.
In an embodiment of the invention, the drying pocket (4) comprises a trapezoid shaped collection pocket (5) tapering from the hot surface (H) to the cold surface (C). By this, the collection pocket (5) is enabled to have a maximum volume further from the hot surface (H).
In an embodiment of the invention, the drying pocket (4) comprises a plurality of fins (9) provided on the cold surface (C). The cold surface area is increased by means of the fins (9) enabling falling of the temperature of the cold surface (C). The phase change materials can thus condense more rapidly.
In an embodiment of the invention, the drying pocket (4) comprises at least one fan (10) provided on the cold surface (C). Enforced transfer is applied and heat transfer is increased thanks to the fan (10). Thus the heat of the cold surface (C) is enabled to fall.
A dishwasher (1) with improved drying efficiency is realized with the present invention. The drying step is performed more efficiently by means of a drying pocket (4) in which phase change material (PCM) is provided, being used between the washing tub (3) and the body (2). The energy consumption and time used is thus reduced. The phase change material is used again at the same performance level thanks to the collection pocket (5) provided in the drying pocket (4). Using phase change material according to the washing steps of the dishwasher (1) is provided.

Claims (9)

  1. A dishwasher (1) comprising a body (2), a washing tub (3) provided on the body (2), in which washing is performed, and a drying pocket (4) provided between the washing tub (3) and the body (2), in which phase change material (PCM) is provided, characterized by the drying pocket (4) having a hot surface (H) on its portion contacting the washing tub (3), a cold surface (C) on its portion contacting the body (2), and a collection pocket (5) enabling collection of the phase change material (PCM) after it changes phase between the cold surface (C) and the hot surface (H).
  2. A dishwasher (1) according to claim 1, characterized by the collection pocket (5) arranged in the drying pocket (4) proximate to the cold surface (C), so as not to contact the hot surface (H).
  3. A dishwasher (1) according to claim 1 or claim 2, characterized by an opening (6) opening from the collection pocket (5) towards the drying pocket (4), and by a valve (7) enabling controlling of the opening (6).
  4. A dishwasher (1) according to any one of the preceding claims, characterized by a control unit (8) enabling controlling of the valve (7) according to the washing steps performed in the washing tub (3).
  5. A dishwasher (1) according to any one of the preceding claims, characterized by the valve (7) enabling the phase change material to stay in the collection pocket (5) in washing step, and to be transferred from the collection pocket (5) to the drying pocket (4) in drying step.
  6. A dishwasher (1) according to any one of the preceding claims, characterized by the collection pocket (5) whose one surface being the cold surface (C).
  7. A dishwasher (1) according to any one of the preceding claims, characterized by the drying pocket (4) comprising a trapezoid shaped collection pocket (5) tapering from the hot surface (H) to the cold surface (C).
  8. A dishwasher (1) according to any one of the preceding claims, characterized by the drying pocket (4) comprising a plurality of fins (9) provided on the cold surface (C).
  9. A dishwasher (1) according to any one of the preceding claims, characterized by the drying pocket (4) comprising at least one fan (10) provided on the cold surface (C).
PCT/EP2017/073971 2016-10-10 2017-09-22 A dishwasher Ceased WO2018069019A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2016/14193 2016-10-10
TR2016/14193A TR201614193A1 (en) 2016-10-10 2016-10-10 A DISHWASHER

Publications (1)

Publication Number Publication Date
WO2018069019A1 true WO2018069019A1 (en) 2018-04-19

Family

ID=59974409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/073971 Ceased WO2018069019A1 (en) 2016-10-10 2017-09-22 A dishwasher

Country Status (2)

Country Link
TR (1) TR201614193A1 (en)
WO (1) WO2018069019A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622882A1 (en) * 1996-06-07 1997-12-11 Aeg Hausgeraete Gmbh Dish washing appliance
DE102009049066A1 (en) 2009-10-12 2011-04-14 Biechele, Günter drying process
WO2016089332A1 (en) * 2014-12-03 2016-06-09 Arcelik Anonim Sirketi A heat pump dishwasher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622882A1 (en) * 1996-06-07 1997-12-11 Aeg Hausgeraete Gmbh Dish washing appliance
DE102009049066A1 (en) 2009-10-12 2011-04-14 Biechele, Günter drying process
WO2016089332A1 (en) * 2014-12-03 2016-06-09 Arcelik Anonim Sirketi A heat pump dishwasher

Also Published As

Publication number Publication date
TR201614193A1 (en) 2018-04-24

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