WO2013098008A1 - A washer with reduced energy consumption expense - Google Patents

A washer with reduced energy consumption expense Download PDF

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Publication number
WO2013098008A1
WO2013098008A1 PCT/EP2012/073598 EP2012073598W WO2013098008A1 WO 2013098008 A1 WO2013098008 A1 WO 2013098008A1 EP 2012073598 W EP2012073598 W EP 2012073598W WO 2013098008 A1 WO2013098008 A1 WO 2013098008A1
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WO
WIPO (PCT)
Prior art keywords
water
chamber
tub
washer
heater
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/EP2012/073598
Other languages
French (fr)
Inventor
Ufuk Levan Yakut
Bulent Efecik
Musa OZDEMIR
Ovunc Doruk Izgen
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Arcelik AS
Original Assignee
Arcelik AS
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of WO2013098008A1 publication Critical patent/WO2013098008A1/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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0047—Energy or water consumption, e.g. by saving energy or water
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/46—Control of the energy or water consumption
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/72—Control of the energy or water consumption
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply 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
    • A47L15/42—Details
    • A47L15/4285—Water-heater 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
    • A47L15/42—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
    • 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
    • A47L2401/12—Water 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
    • 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
    • A47L2401/34—Other automatic detections
    • 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
    • A47L2501/06—Water heaters
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10—Temperature of washing liquids; Heating means therefor

Definitions

  • the present invention relates to a washer of which electric energy consumption expenses are decreased.
  • a dishwasher that comprises a storage tank wherein the water which is externally heated to be used during peak electricity demand is stored.
  • the aim of the present invention is the realization of a washer such as dishwasher or washing machine wherein washing algorithms compatible with smart-grid are applied and the washing performance of which is improved and/or the washing duration of which is shortened.
  • the washer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a control unit wherein the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies is recorded and a chamber wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied.
  • the temperature of the water in the chamber is measured by means of a temperature sensor; when the temperature of the water decreases under a predetermined limit value, the temperature of the water stored in the chamber is kept constant by means of a heater that directly heats the water in the chamber or a heater used in washing processes in the washing tub and the water is provided not to get cold during the waiting time.
  • the washer for example a dishwasher or a washing machine, comprises a circulation pump that provides the circulation of the water in the washing tub, a heater disposed at the inlet of the circulation pump, outside or inside the tub, a multiple way pump outlet valve disposed at the outlet of the circulation pump, which delivers the water received from the tub back to the tub for circulating the water during the heating time and guides the heated water to the chamber, and a hot water feedback line disposed between the pump outlet valve and the tub.
  • a circulation pump that provides the circulation of the water in the washing tub
  • a heater disposed at the inlet of the circulation pump, outside or inside the tub
  • a multiple way pump outlet valve disposed at the outlet of the circulation pump, which delivers the water received from the tub back to the tub for circulating the water during the heating time and guides the heated water to the chamber
  • a hot water feedback line disposed between the pump outlet valve and the tub.
  • the washer comprises a multiple way water inlet valve that guides the water received from the water mains to the chamber to be stored at time periods during which electricity is cheap or to the tub to be used in washing processes, a water filling line that provides the water inlet valve-chamber connection, and the heater is situated inside the chamber.
  • the washer comprises a flow through heater situated in the water filling line and an additional circulation pump that provides the circulation of the water between the chamber and the heater to be heated again, when the water in the chamber gets cold.
  • the heater is not operated in the washing processes at time periods during which electricity consumption cost is high and the hot water that is previously stored in a chamber is used.
  • the temperature of the water stored in the chamber is controlled by means of the temperature sensor, when the waiting time in the chamber is prolonged and the water gets cold, the water is provided to be kept hot by operating the heater and the washing performance is prevented from decreasing.
  • Figure 1 – is the schematic view of a washer.
  • Figure 2 – is the schematic view of a washer in an embodiment of the present invention.
  • Figure 3 – is the schematic view of a washer in another embodiment of the present invention.
  • the washer (1) comprises a tub (2) wherein the items to be washed are placed, a water inlet valve (3, 103) that provides water to be received from the outer water connection (water mains) (M), a discharge line (H) providing the waste water to be discharged, a two way tub outlet valve (V) disposed at the outlet of the tub (2) guiding the water to the tub (2) during the washing process and to the discharge line (H) at the end of the washing process, a control unit (4) that controls the washing processes and comprises the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies, a chamber (5) wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied, a hot water transmission line (6), one end of which is connected to the chamber (5) and the other end to the tub (2), providing the hot water in the chamber (5) to be delivered to the tub (2) in washing processes performed at time periods during which electricity is expensive and a chamber outlet valve (7) disposed in the hot water transmission line (6).
  • the washer (1) of the present invention comprises a temperature sensor (8) disposed in the chamber (5) and a heater (9, 109, 209) that provides the water in the chamber (5) to be kept hot by being operated by the control unit (4) when the temperature of the water in the chamber (5) decreases under a required and predetermined limit value at time periods during which electricity is cheap.
  • the hot water heated by the heater (9, 109, 209) up to a temperature required for the washing process is stored in the chamber (5).
  • the hot water stored in the chamber (5) at time periods during which the electricity unit price is expensive is delivered to the tub (2) from the hot water transmission line (6) and used in the washing process.
  • cold water is received from the outer water connection (M), heated by means of the heater (9, 109, 209) and stored in the chamber (5).
  • the water kept in the chamber (5) to be used at the expensive electricity period gets cold in due course and the temperature of the water is controlled by means of a temperature sensor (8), for example a PTC, in the chamber (5).
  • a temperature sensor (8) for example a PTC
  • the washer (1) comprises a circulation pump (10) that provides the circulation of the washing water, a heater (9) situated before the circulation pump (10), outside or inside the tub (2), a multiple way pump outlet valve (11) disposed at the outlet of the circulation pump (10), which delivers the water received from the tub (2) back to the tub (2) for circulating the water by being passed from the heater (9) during the heating time and guides the water to the chamber (5) when the temperature of the water reaches the desired level, and a feedback line (12) one end of which is connected to the pump outlet valve (11) and the other end to the chamber (5) ( Figure 1).
  • the control unit (4) applies a water heating and storage program not intended for washing at time periods during which electricity consumption cost is low.
  • the heater (9) that heats the water in the chamber (5) is used for heating the water in the tub (2) as in the known embodiments in normal washing processes.
  • water is received to the tub (2) from the outer water connection (M) by means of the water inlet valve (3) to be used at times during which electricity is expensive and the water in the tub (2) is passed over the heater (9) by operating the circulation pump (10).
  • the water in the tub (2) is heated by being circulated between the tub (2) and the heater (9) and the heated water is delivered to the chamber (5) by means of the pump outlet valve (11).
  • the amount of the water received to the tub (2) and then to the chamber (5) after being heated is controlled by means of a level sensor (not shown in the figures) situated in the tub (2) or the chamber (5) or by means of a flow meter (not shown in the figures) situated at the outlet of the water inlet valve (3).
  • a level sensor not shown in the figures
  • a flow meter not shown in the figures
  • the water is delivered to the chamber (5) via the circulation pump (10)- pump outlet valve (11)- feedback line (12).
  • the temperature of the water in the chamber (5) is controlled by the temperature sensor (8).
  • the water in the chamber (5) loses its desired temperature for washing as a result of being kept for a long time
  • the water in the chamber (5) is delivered to the tub (2) through the hot water transmission line (6) and then delivered to the chamber (5) by being heated by the heater (9) therein.
  • the washer (1) comprises a multiple way water inlet valve (103) that guides the water received from the outer water connection (M) to the chamber (5) to be stored at time periods during which electricity is cheap or to the tub (2) to be used in washing processes, a water filling line (13) one end of which is connected to the water inlet valve (103) and the other end to the chamber (5) and a heater (109) situated inside the chamber (5) ( Figure 2).
  • the water received from the outer water connection (M) is delivered to the chamber (5) via the water inlet valve (103) and the water filling line (13) at time periods during which electricity is cheap.
  • the water in the chamber (5) is heated by the heater (109) and the heater (109) is turned off when the water reaches the desired temperature value.
  • the temperature of the water in the chamber (5) is controlled by means of the temperature sensor (8), when the measured temperature decreases under the limit value, the heater (109) is operated again by the control unit (4) and the water is provided to be kept hot.
  • the washer (1) comprises a flow through heater (209) situated in the water filling line (13) outside the chamber (5) and an additional circulation pump (14) that provides the circulation of the water between the chamber (5) and the heater (209) to be heated again when the temperature of the water in the chamber (5) decreases under the limit value ( Figure 3).
  • the water received from the outer water connection (M) and guided to the chamber (5) via the water inlet valve (103) - water filling line (13) is passed from the heater (209) before flowing into the chamber (5) and is filled into the chamber (5) in a hot state.
  • the control unit (4) operates the heater (209) and the additional circulation pump (14) and the water is provided to be kept hot by being heated again.
  • the washer (1) is a dishwasher.
  • the washer (1) is a washing machine or laundry washer/dryer.
  • the heater (9, 109, 209) is not operated at time periods during which the unit cost of electricity is high, the water stored previously in the chamber (5) by being heated at time periods during which the unit cost of electricity is low is used for the washing process and electricity consumption expense is decreased.
  • the temperature of the water stored in the chamber (5) to be used at time periods during which electricity is expensive is controlled by means of the temperature sensor (8), when the water gets cold, the water is provided to be kept hot by being heated again by means of the heater (9, 109, 209) operated by the control unit (4) and thus the decreasing of the washing performance and the prolonging of the washing time are prevented.

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

Abstract

The present invention relates to a washer (1) comprising a control unit (4) that controls the washing processes and comprises the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies, a chamber (5) wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied, a hot water transmission line (6), one end of which is connected to the chamber (5) and the other end to the tub (2), providing the hot water in the chamber (5) to be delivered to the tub (2) in washing processes performed at time periods during which electricity is expensive and a chamber outlet valve (7) disposed in the hot water transmission line (6).

Description

A WASHER WITH REDUCED ENERGY CONSUMPTION EXPENSE
The present invention relates to a washer of which electric energy consumption expenses are decreased.
The concept of smart-grid has become more and more important for decreasing the electric energy consumption expenses of household appliances. Electricity distribution companies charge the electric energy consumed in certain times of the day by different tariffs for providing the applications that consume too much energy to be performed at time periods during which energy consumption is lower. Therefore, household appliances are provided to be operated in compliance with the variable electricity tariff and price advantage is provided for the user. In the systems that internally or externally provide hot water to washers, for example dishwashers or washing machines, to be used in the washing process, heater is the element that consumes most electric energy. Therefore, heaters are not operated or operated with low power at time periods during which the unit cost of electricity is high for decreasing electricity consumption expense. Storing hot water in washers when electricity is cheap and using the hot water when electricity is expensive is a known method; however, the hot water stored to be used in the expensive period gets cold depending on the waiting time, the desired performance cannot be obtained in the washing process performed at the temperature lower than required and washing duration is prolonged.
In the United States Patent No. US8001810, a dishwasher is explained that comprises a storage tank wherein the water which is externally heated to be used during peak electricity demand is stored.
The aim of the present invention is the realization of a washer such as dishwasher or washing machine wherein washing algorithms compatible with smart-grid are applied and the washing performance of which is improved and/or the washing duration of which is shortened.
The washer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a control unit wherein the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies is recorded and a chamber wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied. The temperature of the water in the chamber is measured by means of a temperature sensor; when the temperature of the water decreases under a predetermined limit value, the temperature of the water stored in the chamber is kept constant by means of a heater that directly heats the water in the chamber or a heater used in washing processes in the washing tub and the water is provided not to get cold during the waiting time.
In an embodiment of the present invention, the washer, for example a dishwasher or a washing machine, comprises a circulation pump that provides the circulation of the water in the washing tub, a heater disposed at the inlet of the circulation pump, outside or inside the tub, a multiple way pump outlet valve disposed at the outlet of the circulation pump, which delivers the water received from the tub back to the tub for circulating the water during the heating time and guides the heated water to the chamber, and a hot water feedback line disposed between the pump outlet valve and the tub.
In another embodiment of the present invention, the washer comprises a multiple way water inlet valve that guides the water received from the water mains to the chamber to be stored at time periods during which electricity is cheap or to the tub to be used in washing processes, a water filling line that provides the water inlet valve-chamber connection, and the heater is situated inside the chamber.
In another embodiment of the present invention, the washer comprises a flow through heater situated in the water filling line and an additional circulation pump that provides the circulation of the water between the chamber and the heater to be heated again, when the water in the chamber gets cold.
In the washer of the present invention, the heater is not operated in the washing processes at time periods during which electricity consumption cost is high and the hot water that is previously stored in a chamber is used. The temperature of the water stored in the chamber is controlled by means of the temperature sensor, when the waiting time in the chamber is prolonged and the water gets cold, the water is provided to be kept hot by operating the heater and the washing performance is prevented from decreasing.
The washer realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 – is the schematic view of a washer.
Figure 2 – is the schematic view of a washer in an embodiment of the present invention.
Figure 3 – is the schematic view of a washer in another embodiment of the present invention.
The elements illustrated in the figures are numbered as follows:
  1. Washer
  2. Tub
  3. 103 Water inlet valve
  4. Control unit
  5. Chamber
  6. Hot water transmission line
  7. Chamber outlet valve
  8. Temperature sensor
  9. 109, 209 Heater
  10. Circulation pump
  11. Pump outlet valve
  12. Feedback line
  13. Water filling line
  14. Additional circulation pump
The washer (1) comprises a tub (2) wherein the items to be washed are placed, a water inlet valve (3, 103) that provides water to be received from the outer water connection (water mains) (M), a discharge line (H) providing the waste water to be discharged, a two way tub outlet valve (V) disposed at the outlet of the tub (2) guiding the water to the tub (2) during the washing process and to the discharge line (H) at the end of the washing process, a control unit (4) that controls the washing processes and comprises the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies, a chamber (5) wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied, a hot water transmission line (6), one end of which is connected to the chamber (5) and the other end to the tub (2), providing the hot water in the chamber (5) to be delivered to the tub (2) in washing processes performed at time periods during which electricity is expensive and a chamber outlet valve (7) disposed in the hot water transmission line (6).
The washer (1) of the present invention comprises a temperature sensor (8) disposed in the chamber (5) and a heater (9, 109, 209) that provides the water in the chamber (5) to be kept hot by being operated by the control unit (4) when the temperature of the water in the chamber (5) decreases under a required and predetermined limit value at time periods during which electricity is cheap.
At time periods during which the electricity unit price is cheap, the hot water heated by the heater (9, 109, 209) up to a temperature required for the washing process is stored in the chamber (5). The hot water stored in the chamber (5) at time periods during which the electricity unit price is expensive is delivered to the tub (2) from the hot water transmission line (6) and used in the washing process. In the hot water storage process, cold water is received from the outer water connection (M), heated by means of the heater (9, 109, 209) and stored in the chamber (5). The water kept in the chamber (5) to be used at the expensive electricity period gets cold in due course and the temperature of the water is controlled by means of a temperature sensor (8), for example a PTC, in the chamber (5). When the temperature of the water kept in the chamber (5) decreases under the limit value determined for washing, the water is provided to be kept hot by operating the heater (9, 109, 209).
In an embodiment of the present invention, the washer (1) comprises a circulation pump (10) that provides the circulation of the washing water, a heater (9) situated before the circulation pump (10), outside or inside the tub (2), a multiple way pump outlet valve (11) disposed at the outlet of the circulation pump (10), which delivers the water received from the tub (2) back to the tub (2) for circulating the water by being passed from the heater (9) during the heating time and guides the water to the chamber (5) when the temperature of the water reaches the desired level, and a feedback line (12) one end of which is connected to the pump outlet valve (11) and the other end to the chamber (5) (Figure 1).
In the washer (1), the control unit (4) applies a water heating and storage program not intended for washing at time periods during which electricity consumption cost is low. In this embodiment, the heater (9) that heats the water in the chamber (5) is used for heating the water in the tub (2) as in the known embodiments in normal washing processes. At time periods during which no washing process is performed and electricity is cheap, water is received to the tub (2) from the outer water connection (M) by means of the water inlet valve (3) to be used at times during which electricity is expensive and the water in the tub (2) is passed over the heater (9) by operating the circulation pump (10). The water in the tub (2) is heated by being circulated between the tub (2) and the heater (9) and the heated water is delivered to the chamber (5) by means of the pump outlet valve (11). The amount of the water received to the tub (2) and then to the chamber (5) after being heated is controlled by means of a level sensor (not shown in the figures) situated in the tub (2) or the chamber (5) or by means of a flow meter (not shown in the figures) situated at the outlet of the water inlet valve (3). In this embodiment, since water is circulated inside the tub (2) with the purpose of heating, no dirty item to be washed should be inside the tub (2). After being received to the tub (2) is heated by the heater (9) during a heating time as in the washing program, the water is delivered to the chamber (5) via the circulation pump (10)- pump outlet valve (11)- feedback line (12). The temperature of the water in the chamber (5) is controlled by the temperature sensor (8). In case the water in the chamber (5) loses its desired temperature for washing as a result of being kept for a long time, the water in the chamber (5) is delivered to the tub (2) through the hot water transmission line (6) and then delivered to the chamber (5) by being heated by the heater (9) therein.
In another embodiment of the present invention, the washer (1) comprises a multiple way water inlet valve (103) that guides the water received from the outer water connection (M) to the chamber (5) to be stored at time periods during which electricity is cheap or to the tub (2) to be used in washing processes, a water filling line (13) one end of which is connected to the water inlet valve (103) and the other end to the chamber (5) and a heater (109) situated inside the chamber (5) (Figure 2).
In this embodiment, the water received from the outer water connection (M) is delivered to the chamber (5) via the water inlet valve (103) and the water filling line (13) at time periods during which electricity is cheap. The water in the chamber (5) is heated by the heater (109) and the heater (109) is turned off when the water reaches the desired temperature value. The temperature of the water in the chamber (5) is controlled by means of the temperature sensor (8), when the measured temperature decreases under the limit value, the heater (109) is operated again by the control unit (4) and the water is provided to be kept hot.
In another embodiment of the present invention, the washer (1) comprises a flow through heater (209) situated in the water filling line (13) outside the chamber (5) and an additional circulation pump (14) that provides the circulation of the water between the chamber (5) and the heater (209) to be heated again when the temperature of the water in the chamber (5) decreases under the limit value (Figure 3). In this embodiment, the water received from the outer water connection (M) and guided to the chamber (5) via the water inlet valve (103) - water filling line (13) is passed from the heater (209) before flowing into the chamber (5) and is filled into the chamber (5) in a hot state. When the water in the chamber (5) gets cold and the temperature value thereof decreases under the limit value, the control unit (4) operates the heater (209) and the additional circulation pump (14) and the water is provided to be kept hot by being heated again.
In another embodiment of the present invention, the washer (1) is a dishwasher.
In another embodiment of the present invention, the washer (1) is a washing machine or laundry washer/dryer.
In the washer (1) of the present invention, the heater (9, 109, 209) is not operated at time periods during which the unit cost of electricity is high, the water stored previously in the chamber (5) by being heated at time periods during which the unit cost of electricity is low is used for the washing process and electricity consumption expense is decreased. The temperature of the water stored in the chamber (5) to be used at time periods during which electricity is expensive is controlled by means of the temperature sensor (8), when the water gets cold, the water is provided to be kept hot by being heated again by means of the heater (9, 109, 209) operated by the control unit (4) and thus the decreasing of the washing performance and the prolonging of the washing time are prevented.
It is to be understood that the present invention is not limited by the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These should be considered within the scope of the protection postulated by the claims of the present invention.

Claims (6)

  1. A washer (1) comprising a tub (2) wherein the items to be washed are placed, a water inlet valve (3, 103) that provides water to be received from the outer water connection (M), a control unit (4) that controls the washing processes and comprises the start time and end time information of the cheap and expensive electricity consumption tariff determined by electricity distribution companies, a chamber (5) wherein hot water is stored to be used in the washing process performed at time periods during which expensive electricity tariff is applied, a hot water transmission line (6), one end of which is connected to the chamber (5) and the other end to the tub (2), providing the hot water in the chamber (5) to be delivered to the tub (2) in washing processes performed at time periods during which electricity is expensive and a chamber outlet valve (7) disposed in the hot water transmission line (6), characterized by a temperature sensor (8) disposed in the chamber (5) and a heater (9, 109, 209) that provides the water in the chamber (5) to be kept hot by being operated by the control unit (4) when the temperature of the water in the chamber (5) decreases under a required and predetermined limit value at time periods during which electricity is cheap.
  2. A washer (1) as in Claim 1, characterized by a circulation pump (10) that provides the circulation of the washing water, a heater (9) situated before the circulation pump (10), outside or inside the tub (2), a multiple way pump outlet valve (11) disposed at the outlet of the circulation pump (10), which delivers the water received from the tub (2) back to the tub (2) for circulating the water by being passed from the heater (9) and guides the water to the chamber (5) after the water is heated, and a feedback line (12) one end of which is connected to the pump outlet valve (11) and the other end to the chamber (5).
  3. A washer (1) as in Claim 1, characterized by a multiple way water inlet valve (103) that guides the water received from the outer water connection (M) to the chamber (5) or to the tub (2), a water filling line (13) one end of which is connected to the water inlet valve (103) and the other end to the chamber (5) and a heater (109) situated inside the chamber (5).
  4. A washer (1) as in Claim 2, characterized by a water filling line (13) one end of which is connected to the water inlet valve (103) and the other end to the chamber (5) and a heater (209) situated in the water filling line (13) outside the chamber (5) and an additional circulation pump (14) that provides the circulation of the water between the chamber (5) and the heater (209) to be heated again, when the temperature of the water in the chamber (5) decreases under the limit value.
  5. A washer (1) as in any one of the above claims, characterized by being a dishwasher.
  6. A washer (1) as in any one of the Claims 1 to 4, characterized by being a washing machine or laundry washer/dryer.
PCT/EP2012/073598 2011-12-26 2012-11-26 A washer with reduced energy consumption expense Ceased WO2013098008A1 (en)

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TRA2011/12964 2011-12-26
TR201112964 2011-12-26

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EP3364847B1 (en) 2015-10-21 2021-07-21 Illinois Tool Works Inc. Warewasher idling system and method
WO2025106040A1 (en) * 2023-11-14 2025-05-22 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi A storage tank for washing devices

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DE102008062349A1 (en) * 2008-12-15 2010-06-17 Wüste, Axel, Dr. Method for optimizing energy costs for washing machines, dryers, dishwashers and hot water tanks, involves adapting benefit of heating element of device by pulse width modulation
WO2011052955A2 (en) * 2009-10-26 2011-05-05 Lg Electronics Inc. Device and method for controlling electric product
US20110153110A1 (en) * 2009-12-22 2011-06-23 General Electric Company Return of appliance state after demand response event
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EP3364847B1 (en) 2015-10-21 2021-07-21 Illinois Tool Works Inc. Warewasher idling system and method
WO2025106040A1 (en) * 2023-11-14 2025-05-22 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi A storage tank for washing devices

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