WO2015074834A1 - A dishwasher comprising a heat pump - Google Patents

A dishwasher comprising a heat pump Download PDF

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Publication number
WO2015074834A1
WO2015074834A1 PCT/EP2014/072980 EP2014072980W WO2015074834A1 WO 2015074834 A1 WO2015074834 A1 WO 2015074834A1 EP 2014072980 W EP2014072980 W EP 2014072980W WO 2015074834 A1 WO2015074834 A1 WO 2015074834A1
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WO
WIPO (PCT)
Prior art keywords
compressor
evaporator
dishwasher
fan
around
Prior art date
Application number
PCT/EP2014/072980
Other languages
French (fr)
Inventor
Onur Poyraz
Onder Balioglu
Merve AYDIN
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2015074834A1 publication Critical patent/WO2015074834A1/en

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    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/18—Air temperature
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/12—Air blowers
    • 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 the washing and drying performance of which is improved.
  • the compressor heats up while operating and the said heating decreases the operation performance of the compressor.
  • the evaporator disposed in the fluid cycle draws the ambient temperature and thus heats the fluid passing therethrough.
  • the efficiency of the evaporator decreases.
  • the aim of the present invention is the realization of a dishwasher, the washing and drying effectiveness of which is improved.
  • the dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a compressor that pressurizes the fluid passing therethrough and an evaporator that heats the cool fluid passing therethrough with the heat of the air around the evaporator.
  • the dishwasher comprises a fan provided in the vicinity of the compressor and that enables the air around the compressor to be delivered towards the evaporator.
  • the fan is disposed between the compressor and the evaporator and blows the air sucked from around the compressor towards the evaporator.
  • the hot air around the compressor is moved away from the compressor and hot air is delivered to the evaporator to increase the efficiency of the evaporator.
  • the fan blows air towards the compressor, enables the air around the compressor to move towards the evaporator and the hot air around the compressor to be dispersed and enables the cold air over the evaporator to be moved away from over the evaporator or to be mixed with the said hot air.
  • the dishwasher comprises a channel extending from the compressor towards the evaporator and that enables the air transferred towards the evaporator by the fan to be delivered to the evaporator.
  • the channel that surrounds the compressor and extends to the evaporator enables the air to be directed by the fan towards the evaporator.
  • the dishwasher comprises a control unit that activates or deactivates the fan depending on the temperature around the compressor.
  • the fan is enabled to consume less energy.
  • the dishwasher comprises a temperature sensor provided around the compressor.
  • the control unit activates the fan when the air around the compressor reaches a first limit temperature value (T1) predetermined by the manufacturer and deactivates the fan when the air around the compressor reaches a second limit temperature value (T2) predetermined by the manufacturer.
  • the fan is activated by the control unit while the compressor operates and is kept deactivated while the compressor does not operate.
  • a dishwasher is realized wherein the efficiency of the compressor and the evaporator is increased and energy saving is provided at the same time.
  • Figure 1 – is the perspective view of a dishwasher.
  • Figure 2 – is the schematic view of the heat pump system in an embodiment of the present invention.
  • Figure 3 – is the schematic view of the heat pump system in another embodiment of the present invention.
  • the dishwasher (1) comprises a compressor (2) that pressurizes the fluid passing therethrough and an evaporator (3) that heats the cool fluid passing therethrough by drawing the heat of the air around the evaporator (3).
  • the dishwasher (1) of the present invention comprises a fan (4) provided around the compressor (2) and that transfers the air around the compressor (2) towards the evaporator (3) ( Figure 1, Figure 2, Figure 3).
  • the heat pump system comprises a compressor (2), an evaporator (3), a condenser (8) and a capillary (9).
  • the fluid pressurized by the compressor (2) is delivered to a condenser (8) disposed in the fluid cycle.
  • the water around the condenser (8), which is to be transferred into the washing tub heats up by drawing the heat of the fluid in the condenser (8) and is transferred to the washing tub for the washing operation.
  • the fluid passing through the condenser (8) reaches the evaporator (3) in a cold state by loosing pressure while passing through a capillary (9) provided on the cycle.
  • Heat transfer is provided from the air around the evaporator (3) to the fluid inside the evaporator (3) and thus the temperature of the fluid inside the evaporator (3) is increased.
  • the fan (4) that transfers the air around the compressor (2) to the evaporator (3), the cold air around the evaporator (3) is dispersed and the efficiency of the evaporator (3) is increased by creating a relatively hotter environment.
  • the hot air around the compressor (2) is dispersed and thus the compressor (2) is prevented from stopping while operating and/or the efficiency thereof is prevented from decreasing due to high temperature.
  • the fan (4) is disposed between the compressor (2) and the evaporator (3) and blows the air sucked from around the compressor (2) towards the evaporator (3).
  • the hot air around the compressor (2) is moved away from the compressor (2) and hot air is delivered to the evaporator (3) to increase the efficiency of the evaporator (3).
  • the fan (4) blows air towards the compressor (2), enables the air around the compressor (2) to flow towards the evaporator (3) and the hot air around the compressor (2) to be dispersed and enables the cold air over the evaporator (3) to be moved away from over the evaporator (3) and/or to be mixed with the said hot air.
  • the dishwasher (1) comprises a channel (5) extending from the compressor (2) towards the evaporator (3) and that enables the air transferred towards the evaporator (3) by the fan (4) to be delivered to the evaporator (3).
  • the channel (5) that surrounds the compressor (2) and extends to the evaporator (3) enables the air to be directed by the fan (4) towards the evaporator (3) ( Figure 2).
  • the dishwasher (1) comprises a control unit (7) that activates or deactivates the fan (4) depending on the temperature around the compressor (2).
  • the fan (4) is enabled to consume less energy.
  • the dishwasher (1) comprises a temperature sensor (6) provided around the compressor (2).
  • the control unit (7) activates the fan (4) when the air around the compressor (2) reaches a first limit temperature value (T1) predetermined by the manufacturer and deactivates the fan (4) when the air around the compressor (2) reaches a second limit temperature value (T2) predetermined by the manufacturer.
  • the fan (4) is activated by the control unit (7) while the compressor (2) operates and is kept deactivated while the compressor (2) does not operate.
  • the hot air around the compressor (2) is moved away from around the compressor (2) and the said air is delivered to around the evaporator (3) and the temperature of the air around the evaporator (3) is increased and thus a dishwasher (1) is realized wherein the evaporator (3) efficiency is increased.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a dishwasher (1) comprising a compressor (2) disposed in the fluid cycle in the heat pump system and that pressurizes the fluid passing therethrough and an evaporator (3) that heats the cool fluid passing therethrough by drawing the heat of the air around the evaporator (3).

Description

A DISHWASHER COMPRISING A HEAT PUMP
The present invention relates to a dishwasher the washing and drying performance of which is improved.
In heat pump dishwashers, the compressor heats up while operating and the said heating decreases the operation performance of the compressor. Moreover, the evaporator disposed in the fluid cycle draws the ambient temperature and thus heats the fluid passing therethrough. However, if the ambient temperature is not enough, the efficiency of the evaporator decreases. These problems decrease the performance of the dishwasher and cause the water to be delivered to the washing tub not to be heated sufficiently by the condenser. In the technique, air is blown over the compressor in order to cool the compressor. However, the said solution does not sufficiently increase the performance of the dishwasher.
In the state of the art Japanese Patent Application No. JP2007215887, a dishwasher comprising a heat pump system is explained.
The aim of the present invention is the realization of a dishwasher, the washing and drying effectiveness of which is improved.
The dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a compressor that pressurizes the fluid passing therethrough and an evaporator that heats the cool fluid passing therethrough with the heat of the air around the evaporator.
The dishwasher comprises a fan provided in the vicinity of the compressor and that enables the air around the compressor to be delivered towards the evaporator.
In an embodiment of the present invention, the fan is disposed between the compressor and the evaporator and blows the air sucked from around the compressor towards the evaporator. Thus, the hot air around the compressor is moved away from the compressor and hot air is delivered to the evaporator to increase the efficiency of the evaporator.
In an embodiment of the present invention, the fan blows air towards the compressor, enables the air around the compressor to move towards the evaporator and the hot air around the compressor to be dispersed and enables the cold air over the evaporator to be moved away from over the evaporator or to be mixed with the said hot air.
In an embodiment of the present invention, the dishwasher comprises a channel extending from the compressor towards the evaporator and that enables the air transferred towards the evaporator by the fan to be delivered to the evaporator. The channel that surrounds the compressor and extends to the evaporator enables the air to be directed by the fan towards the evaporator.
In an embodiment of the present invention, the dishwasher comprises a control unit that activates or deactivates the fan depending on the temperature around the compressor. Thus, the fan is enabled to consume less energy.
In an embodiment of the present invention, the dishwasher comprises a temperature sensor provided around the compressor. The control unit activates the fan when the air around the compressor reaches a first limit temperature value (T1) predetermined by the manufacturer and deactivates the fan when the air around the compressor reaches a second limit temperature value (T2) predetermined by the manufacturer.
In an embodiment of the present invention, the fan is activated by the control unit while the compressor operates and is kept deactivated while the compressor does not operate.
By means of the present invention, a dishwasher is realized wherein the efficiency of the compressor and the evaporator is increased and energy saving is provided at the same time.
A dishwasher realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 – is the perspective view of a dishwasher.
Figure 2 – is the schematic view of the heat pump system in an embodiment of the present invention.
Figure 3 – is the schematic view of the heat pump system in another embodiment of the present invention.
The elements illustrated in the figures are numbered as follows:
  1. Dishwasher
  2. Compressor
  3. Evaporator
  4. Fan
  5. Channel
  6. Temperature sensor
  7. Control unit
  8. Condenser
  9. Capillary
The dishwasher (1) comprises a compressor (2) that pressurizes the fluid passing therethrough and an evaporator (3) that heats the cool fluid passing therethrough by drawing the heat of the air around the evaporator (3).
The dishwasher (1) of the present invention comprises a fan (4) provided around the compressor (2) and that transfers the air around the compressor (2) towards the evaporator (3) (Figure 1, Figure 2, Figure 3).
In the heat pump dishwasher (1), the heat pump system comprises a compressor (2), an evaporator (3), a condenser (8) and a capillary (9). The fluid pressurized by the compressor (2) is delivered to a condenser (8) disposed in the fluid cycle. The water around the condenser (8), which is to be transferred into the washing tub heats up by drawing the heat of the fluid in the condenser (8) and is transferred to the washing tub for the washing operation. The fluid passing through the condenser (8) reaches the evaporator (3) in a cold state by loosing pressure while passing through a capillary (9) provided on the cycle. Heat transfer is provided from the air around the evaporator (3) to the fluid inside the evaporator (3) and thus the temperature of the fluid inside the evaporator (3) is increased. By means of the fan (4) that transfers the air around the compressor (2) to the evaporator (3), the cold air around the evaporator (3) is dispersed and the efficiency of the evaporator (3) is increased by creating a relatively hotter environment. At the same time, the hot air around the compressor (2) is dispersed and thus the compressor (2) is prevented from stopping while operating and/or the efficiency thereof is prevented from decreasing due to high temperature.
In an embodiment of the present invention, the fan (4) is disposed between the compressor (2) and the evaporator (3) and blows the air sucked from around the compressor (2) towards the evaporator (3). Thus, the hot air around the compressor (2) is moved away from the compressor (2) and hot air is delivered to the evaporator (3) to increase the efficiency of the evaporator (3).
In an embodiment of the present invention, the fan (4) blows air towards the compressor (2), enables the air around the compressor (2) to flow towards the evaporator (3) and the hot air around the compressor (2) to be dispersed and enables the cold air over the evaporator (3) to be moved away from over the evaporator (3) and/or to be mixed with the said hot air.
In an embodiment of the present invention, the dishwasher (1) comprises a channel (5) extending from the compressor (2) towards the evaporator (3) and that enables the air transferred towards the evaporator (3) by the fan (4) to be delivered to the evaporator (3). The channel (5) that surrounds the compressor (2) and extends to the evaporator (3) enables the air to be directed by the fan (4) towards the evaporator (3) (Figure 2).
In an embodiment of the present invention, the dishwasher (1) comprises a control unit (7) that activates or deactivates the fan (4) depending on the temperature around the compressor (2). Thus, the fan (4) is enabled to consume less energy.
In an embodiment of the present invention, the dishwasher (1) comprises a temperature sensor (6) provided around the compressor (2). The control unit (7) activates the fan (4) when the air around the compressor (2) reaches a first limit temperature value (T1) predetermined by the manufacturer and deactivates the fan (4) when the air around the compressor (2) reaches a second limit temperature value (T2) predetermined by the manufacturer.
In an embodiment of the present invention, the fan (4) is activated by the control unit (7) while the compressor (2) operates and is kept deactivated while the compressor (2) does not operate.
By means of the present invention, by means of a fan (4), the hot air around the compressor (2) is moved away from around the compressor (2) and the said air is delivered to around the evaporator (3) and the temperature of the air around the evaporator (3) is increased and thus a dishwasher (1) is realized wherein the evaporator (3) efficiency is increased.

Claims (7)

  1. A dishwasher (1) comprising a compressor (2) that pressurizes the fluid passing therethrough and an evaporator (3) that heats the cool fluid passing therethrough by drawing the heat of the air around the evaporator (3), characterized in that a fan (4) provided around the compressor (2) and that transfers the air around the compressor (2) towards the evaporator (3).
  2. A dishwasher (1) as in Claim 1, characterized in that the fan (4) disposed between the compressor (2) and the evaporator (3) and that blows the air sucked from around the compressor (2) towards the evaporator (3).
  3. A dishwasher (1) as in Claim 1 or 2 characterized in that the fan (4) that blows air towards the compressor (2) and that enables the air around the compressor (2) to flow towards the evaporator (3).
  4. A dishwasher (1) as in any one of the above claims, characterized in that a channel (5) extending from the compressor (2) towards the evaporator (3) and that enables the air transferred towards the evaporator (3) by the fan (4) to be delivered to the evaporator (3).
  5. A dishwasher (1) as in any one of the above claims characterized in that a control unit (7) that activates or deactivates the fan (4) depending on the temperature around the compressor (2).
  6. A dishwasher (1) as in Claim 5, characterized in that a temperature sensor (6) provided around the compressor (2) and in that a control unit (7) that activates the fan (4) when the air around the compressor (2) reaches a first limit temperature value (T1) predetermined by the manufacturer and deactivates the fan (4) when the air around the compressor (2) reaches a second limit temperature value (T2) predetermined by the manufacturer.
  7. A dishwasher (1) as in Claim 5 or 6, characterized in that the control unit (7) that activates the fan (4) while the compressor (2) operates and keeps the fan (4) deactivated while the compressor (2) does not operate.
PCT/EP2014/072980 2013-11-22 2014-10-27 A dishwasher comprising a heat pump WO2015074834A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201313643 2013-11-22
TRA2013/13643 2013-11-22

Publications (1)

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WO2015074834A1 true WO2015074834A1 (en) 2015-05-28

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3427632A1 (en) * 2017-07-12 2019-01-16 Miele & Cie. KG Operating method for a dishwasher with a heat pump circuit and a dishwasher provided with a heat pump circuit
EP3427631A1 (en) * 2017-07-12 2019-01-16 Miele & Cie. KG Dishwasher with a heat pump circuit
WO2019034373A1 (en) * 2017-08-18 2019-02-21 Arcelik Anonim Sirketi A dishwasher comprising a heat pump
WO2020001898A1 (en) * 2018-06-26 2020-01-02 Arcelik Anonim Sirketi A heat pump dishwasher
WO2020064254A1 (en) * 2018-09-25 2020-04-02 Arcelik Anonim Sirketi A heat pump dishwasher comprising an evaporator tray
CN111631658A (en) * 2020-05-28 2020-09-08 珠海格力电器股份有限公司 Dish washing machine
US11284774B2 (en) * 2018-11-28 2022-03-29 Lg Electronics Inc. Dishwasher with heat pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986345A (en) * 1974-12-03 1976-10-19 Stierlen-Maquet Ag Heat recovering device for dishwashers
EP2312049A1 (en) * 2009-10-15 2011-04-20 Electrolux Home Products Corporation N.V. A tumble dryer with a heat pump system
EP2478969A1 (en) * 2011-01-24 2012-07-25 Electrolux Home Products Corporation N.V. Home appliance
EP2728052A1 (en) * 2012-10-30 2014-05-07 Electrolux Home Products Corporation N.V. Washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986345A (en) * 1974-12-03 1976-10-19 Stierlen-Maquet Ag Heat recovering device for dishwashers
EP2312049A1 (en) * 2009-10-15 2011-04-20 Electrolux Home Products Corporation N.V. A tumble dryer with a heat pump system
EP2478969A1 (en) * 2011-01-24 2012-07-25 Electrolux Home Products Corporation N.V. Home appliance
EP2728052A1 (en) * 2012-10-30 2014-05-07 Electrolux Home Products Corporation N.V. Washing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3427632A1 (en) * 2017-07-12 2019-01-16 Miele & Cie. KG Operating method for a dishwasher with a heat pump circuit and a dishwasher provided with a heat pump circuit
EP3427631A1 (en) * 2017-07-12 2019-01-16 Miele & Cie. KG Dishwasher with a heat pump circuit
WO2019034373A1 (en) * 2017-08-18 2019-02-21 Arcelik Anonim Sirketi A dishwasher comprising a heat pump
WO2020001898A1 (en) * 2018-06-26 2020-01-02 Arcelik Anonim Sirketi A heat pump dishwasher
WO2020064254A1 (en) * 2018-09-25 2020-04-02 Arcelik Anonim Sirketi A heat pump dishwasher comprising an evaporator tray
US11284774B2 (en) * 2018-11-28 2022-03-29 Lg Electronics Inc. Dishwasher with heat pump
CN111631658A (en) * 2020-05-28 2020-09-08 珠海格力电器股份有限公司 Dish washing machine

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