WO2020078673A1 - Élimination de la congélation dans la ligne d'admission d'eau d'une machine à laver - Google Patents

Élimination de la congélation dans la ligne d'admission d'eau d'une machine à laver Download PDF

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Publication number
WO2020078673A1
WO2020078673A1 PCT/EP2019/075607 EP2019075607W WO2020078673A1 WO 2020078673 A1 WO2020078673 A1 WO 2020078673A1 EP 2019075607 W EP2019075607 W EP 2019075607W WO 2020078673 A1 WO2020078673 A1 WO 2020078673A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
evaporator
water tank
washing machine
tub
Prior art date
Application number
PCT/EP2019/075607
Other languages
English (en)
Inventor
Semih KURULAR
Mutlu IPEK
Mehmet Kaya
Murat Elgun
Turan SENDINC
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 WO2020078673A1 publication Critical patent/WO2020078673A1/fr

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 

Definitions

  • the present invention relates to a washing machine wherein the frozen part of the evaporator during the operation is thawed.
  • heat pump systems which operate according to the vapor compression-based cooling cycle, are used for heating purposes
  • heat is transferred to the environment with heating needs while heat is drawn from another environment. This is performed by an evaporator and a condenser in air conditioners or all devices with a heat pump system.
  • the heat which is drawn from the evaporator is transferred by means of the condenser.
  • the water used for washing purposes in washing machines is heated in order to improve the performance of the washing process.
  • said heating function is performed by an electric heater.
  • electric heaters consume too much electrical energy per unit heating capacity and therefore the use of electric heaters, which consume high amounts of energy, decreases day by day.
  • the fast-moving heat pump technology is started to be used as an alternative solution to the electric heater systems in heating applications. Moreover, as such systems can be designed according to conditions and can be easily applied, the use thereof becomes quickly widespread.
  • the heat pump systems are composed of four components which are compressor, condenser, evaporator, and throttle valve (capillary).
  • a heat pump system is used for heating water in a washing machine.
  • the condenser is used for heating water
  • the evaporator draws heat from an environment.
  • the evaporator is disposed in a water tank and heat is drawn from the cold mains water.
  • the main problem in this embodiment is that the water used as a heat source for the evaporator may freeze as heat is drawn. Since the evaporator and the tank thereof are positioned on the water intake line, mains water cannot be taken from the evaporator tank for the rinsing step. This causes the failure of the machine to carry out rinsing and spin-drying steps.
  • the aim of the present invention is to ensure that the machine takes water for the rinsing step and works without any problems in case freezing occurs in the evaporator tank.
  • an ice thawing line is provided between the tub and the evaporator.
  • the freezing point is checked and if the temperature of the evaporator falls below the freezing point, the valve disposed on this line is opened and the hot water thaws the ices in the evaporator.
  • the freezing in the evaporator is prevented, and water can be taken for the rinsing step without any problems.
  • the washing machines comprise
  • a heat pump having a heater or an evaporator and a water tank, a temperature sensor, a condenser, a compressor, and a throttle valve, and
  • an ice thawing line which provides the connection between the tub and the evaporator and which has an ice thawing line.
  • the washing machine comprises the water intake valve which provides the intake of water from the mains and which is connected to the detergent dispenser, a tub which receives the water passing through the detergent dispenser thus creating a washing environment, a drum which rotates inside the tub thus providing mechanical movement, and a heater which heats the water collected in the tub.
  • the water received from the mains is mixed with detergent in the detergent dispenser and then enters the tub, and the heater is operated to heat the water in the tub up to a temperature adjusted according to the selected program, and thus the washing process is realized.
  • a heat pump is used in order to reach higher temperatures by using less energy.
  • the evaporator and the water tank are disposed at the lower side of the machine and directly positioned on the water intake line of the machine by being directly connected to the water intake valve.
  • the evaporator water tank In order for the water leaving the evaporator and the water tank to reach the detergent dispenser, the evaporator water tank must be completely filled. After the evaporator and the water tank are filled, the water leaving the same is directly sent to the detergent dispenser. From the detergent dispenser, the water together with detergent is delivered into the tub-drum structure.
  • the heat pump system starts to operate in the main washing step, as the evaporator and the water tank are filled with water, the heat drawn therefrom is transferred to the water to be heated by the condenser.
  • the water to be heated is sent to the condenser, which is composed of concentric tubes, by means of the jet pump, and then from here is delivered back into the tub-drum structure by means of the jet.
  • an ice thawing line and an ice thawing line control valve are disposed between the tub-drum system and the evaporator and the water tank.
  • a temperature sensor is provided in the evaporator and the water tank, and the temperature of the evaporator and the water tank is continuously measured.
  • the ice thawing line control valve is opened and hot water in the tub is delivered to the evaporator and the water tank.
  • Continuous monitoring of the temperature of the evaporator allows intervention in case of freezing. After the temperature falls below freezing point, the valve on the ice thawing line is opened, and the hot water in the tub is taken into the evaporator, thus thawing the ice therein. Thus, the operation of the washing machine is not hindered and the intake of the rinsing water is performed.

Landscapes

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

Abstract

La présente invention concerne une machine à laver dans laquelle une pompe à chaleur est utilisée pour atteindre des températures plus élevées en utilisant moins d'énergie, ladite pompe à chaleur comprenant un évaporateur disposé à l'intérieur d'un réservoir d'eau, ce qui empêche l'eau qui se trouve dans le réservoir d'eau de geler.
PCT/EP2019/075607 2018-10-19 2019-09-24 Élimination de la congélation dans la ligne d'admission d'eau d'une machine à laver WO2020078673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/15543 2018-10-19
TR201815543 2018-10-19

Publications (1)

Publication Number Publication Date
WO2020078673A1 true WO2020078673A1 (fr) 2020-04-23

Family

ID=68069758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/075607 WO2020078673A1 (fr) 2018-10-19 2019-09-24 Élimination de la congélation dans la ligne d'admission d'eau d'une machine à laver

Country Status (1)

Country Link
WO (1) WO2020078673A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2206824A2 (fr) 2010-02-16 2010-07-14 V-Zug AG Appareil ménager doté d'une cuve, d'une pompe à chaleur et d'un réservoir
EP2224049A1 (fr) * 2010-06-11 2010-09-01 V-Zug AG Appareil de nettoyage avec un réservoir d'eau usée et une pompe à chaleur
EP2594185A2 (fr) * 2013-02-07 2013-05-22 V-Zug AG Appareil de nettoyage avec cuve, réservoir pour eaux usées et conduit de liaison
WO2014127799A1 (fr) * 2013-02-19 2014-08-28 Electrolux Appliances Aktiebolag Machine à laver
WO2014198300A1 (fr) * 2013-06-11 2014-12-18 Electrolux Appliances Aktiebolag Lave-linge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2206824A2 (fr) 2010-02-16 2010-07-14 V-Zug AG Appareil ménager doté d'une cuve, d'une pompe à chaleur et d'un réservoir
DK2206824T3 (da) 2010-02-16 2013-10-07 V Zug Ag Husholdningsindretning med kar, varmepumpe og tank
EP2224049A1 (fr) * 2010-06-11 2010-09-01 V-Zug AG Appareil de nettoyage avec un réservoir d'eau usée et une pompe à chaleur
EP2594185A2 (fr) * 2013-02-07 2013-05-22 V-Zug AG Appareil de nettoyage avec cuve, réservoir pour eaux usées et conduit de liaison
WO2014127799A1 (fr) * 2013-02-19 2014-08-28 Electrolux Appliances Aktiebolag Machine à laver
WO2014198300A1 (fr) * 2013-06-11 2014-12-18 Electrolux Appliances Aktiebolag Lave-linge

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