EP3855996B1 - Wärmepumpengeschirrspüler mit einer verdampferschale - Google Patents

Wärmepumpengeschirrspüler mit einer verdampferschale Download PDF

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Publication number
EP3855996B1
EP3855996B1 EP19761831.7A EP19761831A EP3855996B1 EP 3855996 B1 EP3855996 B1 EP 3855996B1 EP 19761831 A EP19761831 A EP 19761831A EP 3855996 B1 EP3855996 B1 EP 3855996B1
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EP
European Patent Office
Prior art keywords
evaporator
dishwasher
air duct
water
air
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
EP19761831.7A
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English (en)
French (fr)
Other versions
EP3855996A1 (de
Inventor
Onur Poyraz
Emre SAGLICAN
Nevin AKKAS
Mehmet Kaya
Murat Elgun
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
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Arcelik AS
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Publication date
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Publication of EP3855996A1 publication Critical patent/EP3855996A1/de
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Publication of EP3855996B1 publication Critical patent/EP3855996B1/de
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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
    • A47L15/483—Drying arrangements by using condensers
    • 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
    • A47L15/4285—Water-heater arrangements

Definitions

  • the present invention relates to a heat pump dishwasher.
  • the heat pump system in the heat pump dishwashers is composed of a compressor which pressurizes the refrigerant and provides the circulation thereof, flow tubes wherein the refrigerant circulates, a condenser, an evaporator, and an expansion element.
  • the water heating process is realized by means of the heat pump system.
  • the washing water accumulated under the tub is delivered to the water heating receptacle which contains the condenser by means of the circulation pump.
  • the water heating up in the water heating receptacle is directed to the spray arms by means of the multiport valve. This cycle continues until the temperature of the washing water reaches the desired value.
  • the evaporator in the heat pump system draws heat from the environment while the compressor delivers heat to the condenser, and the condenser transfers heat to the washing water.
  • At least one fan directs the ambient air towards the evaporator such that the evaporator draws heat.
  • the ambient air passing over the evaporator leaves its heat on the surfaces thereof and the air leaving the evaporator is discharged to the kitchen environment.
  • the water vapor in the ambient air getting in contact with the evaporator condenses and the resulting water droplets are accumulated in the condensation receptacle under the evaporator.
  • the volume of the condensation receptacle is limited, and if not emptied in time the water in the condensation receptacle overflows and disperses on the floor.
  • the humidity of the ambient air used decreases depending on the operation of the heat pump system, the air in the environment wherein the dishwasher is installed gets dry, and the dry air disturbs the user.
  • Patent No. EP2682037 (B1 ) relates to a heat pump dishwasher wherein the water condensed on the evaporator surfaces due to the humidity of the ambient air is accumulated in a condensation receptacle.
  • Patent Application No. EP3166466 (A1 ) relates to the method for transferring the water condensing on the evaporator surface to the washing cycle in a heat pump dishwasher.
  • Patent Application No. CN105476584 discloses the placement of the evaporator, the compressor and the fan into a channel under the body of the dishwasher.
  • the aim of the present invention is the realization of a heat pump dishwasher which improves the air conditions of the environment wherein the same is installed.
  • the dishwasher realized in order to attain the aim of the present invention is of heat pump type, and comprises a compressor, a condenser, an evaporator, an expansion element and a condensation receptacle wherein the water condensing on the evaporator is accumulated, which together perform the refrigerant cycle.
  • the washing water is heated by the condenser.
  • the dishwasher of the present invention comprises an air duct having an inlet port which collects the air leaving the evaporator during the washing process and an outlet port which opens to the kitchen environment.
  • the water taken from the evaporator condensation receptacle is delivered into the air duct by means of a water supply line.
  • the air passing through the air duct evaporates the water taken from the condensation receptacle and humid air is delivered to the kitchen environment through the outlet port.
  • the air in the environment wherein the dishwasher operates is prevented from getting dry and disturbing the user.
  • the dishwasher comprises an evaporator tray which is disposed into the air duct and wherein the water taken from the condensation receptacle is collected.
  • the water taken from the condensation receptacle is sprayed into the air duct via nozzles.
  • the dishwasher (1) comprises a body (2); a circulation pump (3) which provides the delivery of the washing water into the washing environment in the tub; at least one rack (4) wherein the items to be washed are placed; at least one spray arm (5) which provides the delivery of the washing water to the racks (4); and a heat pump (6) which heats the washing water.
  • the heat pump (6) comprises a compressor (7) which performs the refrigerant cycle; a condenser (8) which is used for heating the washing water; an evaporator (9) which draws heat from the outer environment and transfers the same to the condenser (8) by means of the compressor (7); at least one fan (10) which provides the heat transfer by blowing the ambient air onto the evaporator (9); an expansion element (11), for example a capillary tube or an expansion valve, which is disposed between the condenser (8) and the evaporator (9); and a condensation receptacle (12) which is disposed under the evaporator (9) and wherein the water condensing on the evaporator (9) is collected ( Figure 1 ).
  • the dishwasher (1) of the present invention comprises
  • the dishwasher (1) comprises an evaporator tray (18) which is disposed into the air duct (15) and wherein the water taken from the condensation receptacle (12) by means of the water supply line (16) and the water supply pump (17) is collected.
  • the air flowing through the air duct (15) passes over and evaporates the water in the evaporator tray (18), thus enabling humid air to be released to the outer environment ( Figure 2 ).
  • the water collected in the condensation receptacle (12) is partially transferred to the evaporator tray (18) disposed in the air duct (15) by means of the water supply line (16) and the water supply pump (17).
  • the water which exceeds the capacity of the evaporator tray (18) and which remains in the condensation receptacle (12) is discharged as waste water.
  • the dry air leaving the evaporator (9) passes over the water in the evaporator tray (18) so as to evaporate the water.
  • the humidified air is released to the kitchen environment through the outlet port (14) opened on the front side of the body (2).
  • the compressor (7) in the heat pump (6) contacts the outer surface of the air duct (15).
  • the cold and dry air leaving the evaporator (9) heats up by drawing the heat from the part where the compressor (7) is in contact with the surface of the air duct (15).
  • the heated dry air increases the evaporation rate of the water in the evaporator tray (18).
  • more water is evaporated, increasing the humidity of the air discharged to the outer environment ( Figure 2 ).
  • the compressor (7) is placed in the air duct (15) before the evaporator tray (18) in the direction of the air flow.
  • the surface waste heat of the compressor (7) is completely used, increasing the evaporation rate of the water in the evaporator tray (18).
  • the effectiveness and working life thereof are increased ( Figure 3 ).
  • the dishwasher (1) comprises a heater (19) which is disposed in the air duct (15) before the evaporator tray (18) in the direction of air flow or into the evaporator tray (18) ( Figure 4 ).
  • the dishwasher (1) comprises a refrigerant pipe extension (20) which is disposed in the air duct (15) before the evaporator tray (18) in the direction of air flow or into the evaporator tray (18) and which is connected to the condenser (8).
  • the heat generated in the condenser (8) which is the hot component of the heat pump (6) is used ( Figure 5 ).
  • the dishwasher (1) comprises a water tank (21) which surrounds the air duct (15) and which is filled with the hot water discharged from the dishwasher (1).
  • the air flowing through the air duct (15) draws heat from the water tank (22) ( Figure 6 ).
  • the dishwasher (1) comprises at least one nozzle (21) which is connected to the water supply line (16), which is arranged in the air duct (15) and which sprays water onto the inner surface of the air duct (15).
  • the air flowing through the air duct (15) evaporates the water sprayed by the nozzles (21), thus eliminating the need for using the evaporator tray (18) ( Figure 7 ).
  • the water collected in the condensation receptacle (12) is delivered into the air duct (15) extending from the evaporator (9) towards the outside of the body (2).
  • the cold and dry air leaving the evaporator (9) and passing through the air duct (15) evaporates the water delivered into the same air duct (15), thus releasing humid air to the outer environment.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (8)

  1. - Eine Geschirrspülmaschine (1) umfasst einen Körper (2), eine Umwälzpumpe (3); mindestens einen Gestell (4); mindestens einen Sprüharm (5), der die Abgabe von Waschwasser an das mindestens eine Gestell (4) bereitstellt; eine Wärmepumpe (6), die das Erhitzen von Waschwasser ermöglicht, wobei die Wärmepumpe (6) einen Kompressor (7) umfasst, einen Kondensator (8), einen Verdampfer (9), der es ermöglicht, der äußeren Umgebung Wärme zu entziehen und diese mittels des Kompressors (7) an den Kondensator (8) zu übertragen, mindestens einen Lüfter (10), der eine Wärmeübertragung ermöglicht, indem Umgebungsluft auf den Verdampfer (9) geleitet wird, ein Ausdehnungselement (11) und einen Kondensatbehälter (12), der unter dem Verdampfer (9) angeordnet ist und in dem das am Verdampfer (9) kondensierende Wasser gesammelt wird; die Geschirrspülmaschine (1) ist dadurch gekennzeichnet, dass sie weiterhin folgendes umfasst:
    - einen Luftkanal (15), der eine Einlassöffnung (13), die die Luft sammelt, die über den Verdampfer (9) mittels des Lüfters (10) geleitet wird, und die dem Verdampfer (9) zugewandt ist, und eine Auslassöffnung (14) aufweist, die sich aus dem Körper (2) in die äußere Umgebung öffnet, dabei verdunstet der Luftkanal (15) das aus dem Kondensatbehälter (12) entnommene Wasser mit der aus der Einlassöffnung (13) kommenden Luft und gibt feuchte Luft an die äußere Umgebung durch die Auslassöffnung (14) ab, und
    - eine Wasserversorgungsleitung (16) und eine Wasserversorgungspumpe (17) zum Fördern des Wassers im Kondensatbehälter (12) in den Luftkanal (15).
  2. - Eine Geschirrspülmaschine (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass ein Verdampferboden (18), die in dem Luftkanal (15) angeordnet ist und in der das dem Kondensatbehälter (12) mittels der Wasserversorgungsleitung (16) und der Wasserversorgungspumpe (17) entnommene Wasser gesammelt wird.
  3. - Eine Geschirrspülmaschine (1), wie in Anspruch 1 oder 2 aufgeführt, ist dadurch gekennzeichnet, dass der Kompressor (7) die Außenfläche des Luftkanals (15) berührt.
  4. - Eine Geschirrspülmaschine (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass der Kompressor (7) in Luftströmungsrichtung vor dem Verdampferboden (18) im Luftkanal (15) angeordnet ist.
  5. - Eine Geschirrspülmaschine (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass sie eine Heizung (19) aufweist, die im Luftkanal (15) in Luftströmungsrichtung vor dem Verdampferboden (18) oder in den Verdampferboden (18) angeordnet ist.
  6. - Eine Geschirrspülmaschine (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass eine Kältemittelleitungsverlängerung (20) im Luftkanal (15) in Luftströmungsrichtung vor dem Verdampferboden (18) oder in den Verdampferboden (18) angeordnet und mit dem Kondensator (8) verbunden ist.
  7. - Eine Geschirrspülmaschine (1), wie in Anspruch 1 oder 2 aufgeführt, ist dadurch gekennzeichnet, dass ein Wasserbehälter (22) den Luftkanal (15) umgibt und mit dem aus der Geschirrspülmaschine (1) abgegebenen heißen Wasser gefüllt ist.
  8. - Eine Geschirrspülmaschine (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass mindestens eine Düse (21) mit der im Luftkanal (15) angeordneten Wasserversorgungsleitung (16) verbunden ist und Wasser auf die Innenfläche des Luftkanals (15) sprüht.
EP19761831.7A 2018-09-25 2019-08-29 Wärmepumpengeschirrspüler mit einer verdampferschale Active EP3855996B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201813884 2018-09-25
PCT/EP2019/073030 WO2020064254A1 (en) 2018-09-25 2019-08-29 A heat pump dishwasher comprising an evaporator tray

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Publication Number Publication Date
EP3855996A1 EP3855996A1 (de) 2021-08-04
EP3855996B1 true EP3855996B1 (de) 2022-08-10

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PL (1) PL3855996T3 (de)
WO (1) WO2020064254A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114680768A (zh) * 2020-12-30 2022-07-01 广东美的白色家电技术创新中心有限公司 热泵式洗涤设备
DE102022000060A1 (de) * 2022-01-09 2023-07-13 Alexander Mlynek Vorrichtung zur Reinigung von Reinigungsgut

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040261820A1 (en) * 2003-06-30 2004-12-30 Monsrud Lee J. Dishwashing machine having a water vapor recovery line and method for washing articles
DE102012105906A1 (de) 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
WO2015074834A1 (en) * 2013-11-22 2015-05-28 Arcelik Anonim Sirketi A dishwasher comprising a heat pump
WO2016004990A1 (en) 2014-07-09 2016-01-14 Electrolux Appliances Aktiebolag Method of operating a dishwasher and a dishwasher
CN105476584B (zh) 2014-09-19 2019-08-23 杭州三花研究院有限公司 热泵型餐具清洗机及其控制方法
PL3291720T3 (pl) * 2015-05-06 2019-06-28 Arçelik Anonim Sirketi Zmywarka do naczyń zawierająca pompę ciepła

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PL3855996T3 (pl) 2022-12-05
WO2020064254A1 (en) 2020-04-02

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