WO2015082126A1 - A washer and the control method thereof - Google Patents

A washer and the control method thereof Download PDF

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Publication number
WO2015082126A1
WO2015082126A1 PCT/EP2014/072889 EP2014072889W WO2015082126A1 WO 2015082126 A1 WO2015082126 A1 WO 2015082126A1 EP 2014072889 W EP2014072889 W EP 2014072889W WO 2015082126 A1 WO2015082126 A1 WO 2015082126A1
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WO
WIPO (PCT)
Prior art keywords
pump
cleaning agent
washer
control unit
amount
Prior art date
Application number
PCT/EP2014/072889
Other languages
French (fr)
Inventor
Ilkan Erdem
Ahmet Burak TOP
Aysegul AYDAY BESIKCI
Sinem KARAKAS
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
Priority to EP14787211.3A priority Critical patent/EP3077585A1/en
Publication of WO2015082126A1 publication Critical patent/WO2015082126A1/en

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    • 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 
    • D06F39/02—Devices for adding soap or other washing agents
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
    • 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
    • D06F2103/68—Operation mode; Program phase
    • 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
    • D06F2105/42—Detergent or additive 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06—Arrangements for preventing or destroying scum

Definitions

  • the present invention relates to a washer wherein washing is performed by using liquid cleaning agent and the control method thereof.
  • the aim of the present invention is the realization of a washer wherein the cleaning agents are prevented from foaming before reaching the tub, and the control method thereof.
  • 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 tub wherein the washing process is performed, a detergent dispenser wherein the cleaning agents are stored, a channel that is disposed between the tub and the detergent dispenser and that provides liquid transfer, a dosing unit that has at least one pump enabling cleaning agents to be sucked from the detergent dispenser to be delivered to the tub and at least one water supply valve, and furthermore a control unit that determines the amount of cleaning agent to be used depending on the selected program and the value entered by the user, that compares this amount with the amount of cleaning agent that will form excessive foam in the channel when mixed with water and/or with the amount of cleaning agent that the pump can pump in unit time and that controls the operation of the pump in accordance with the result.
  • the cleaning agents are prevented from foaming before reaching the tub and decreasing washing efficiency by means of the pump being operated controllably.
  • the flow rate of the pump is determined by the control unit.
  • the control unit changes the pump flow rate such that accurate dosing is provided.
  • the pump is operated by the control unit at a flow rate smaller than its maximum flow rate.
  • the control unit decreases the flow rate of the pump for accurate dosing.
  • control unit determines how many times the pump will perform the pumping operation. By means of this embodiment, formation of excessive foam in the channel is prevented, accurate dosing is provided and the cleaning agents are enabled to mix with the items to be washed better.
  • control unit optimizes the number of pumping, enabling the pump to perform more than one pumping so that the washing duration is not prolonged while the cleaning agent is pumped and in order to prevent formation of foam.
  • control unit enables the pump to pump the cleaning agent amount to be used in smaller and equal amounts and in more than one time.
  • accurate dosing is performed and formation of foam inside the channel is prevented.
  • control unit determines the duration between two working phases of the pump by taking into consideration the duration that elapses for the pumped cleaning agent amount to reach the tub in order to prevent excessive foam formation inside the channel.
  • control unit controls the water supply valve in accordance with the number of pumpings the pump performs and the water settings of the selected washing program in order that the dosing unit operates efficiently.
  • the pump and the water supply valve are enabled to operate in coordination with one another.
  • control unit operates the water supply valve just after one working phase of the pump is completed, thus preventing the total washing duration from being prolonged.
  • control unit controls the water supply valve so as to supply water just before the pump operates and as soon as the pumping operation is finished.
  • the interior of the channel is enabled to be always slippery and thus the cleaning agents are enabled to reach the tub without piling up.
  • control unit controls the water supply valve independently from the pump and the number of pumpings.
  • control unit delivers water by opening the water supply valve when required independently from the pump depending on the data received from the detectors inside the washer.
  • the washer of the present invention can be a washing machine, a laundry washer/dryer or a dishwasher in different embodiments.
  • the washer is controlled by the control unit included therein with the steps of:
  • control unit and the control method used in the washer of the present invention accurate and effective dosing is performed by controlling the dosing unit.
  • the cleaning agents are prevented from foaming as much as possible before reaching the tub wherein the washing process is performed and washing efficiency is prevented from decreasing as a result of the cleaning agent losses due to overflowing.
  • Figure 1 – is the front schematic view of a washer.
  • the washer (1) comprises a tub (2) wherein the washing process is performed, a detergent dispenser (3) having at least one partition (4) wherein the cleaning agents are stored, a channel (5) that is disposed between the tub (2) and the detergent dispenser (3) and that provides liquid transfer, a dosing unit (6) that has at least one pump (7) enabling the cleaning agents to be sucked from the detergent dispenser (3) to be delivered to the tub (2) and at least one water supply valve (8).
  • the washer (1) different types of cleaning agents, for example liquid detergent and softener are stored in different partitions (4) of the detergent dispenser (3) and the dosing unit (6) delivers the cleaning agent to be used in the washing process to the tub (2) by means of the channel (5).
  • different types of cleaning agents for example liquid detergent and softener are stored in different partitions (4) of the detergent dispenser (3) and the dosing unit (6) delivers the cleaning agent to be used in the washing process to the tub (2) by means of the channel (5).
  • the washer (1) of the present invention comprises a control unit (9)
  • the control unit (9) determines the amount of cleaning agent to be used according to the amount determined by the manufacturer depending on the selected program or manually entered by the user. Afterwards, the control unit (9) compares the decided amount with the cleaning agent amount that will form excessive foam inside the channel (5) and/or decides whether or not the pump (7) can pump at its maximum flow rate and controls the pump (7) for mixing the cleaning agent with the wash water according to the result.
  • control unit (9) decides at which flow rate the pump (7) pumps.
  • the control unit (9) changes the flow rate of the pump (7) upon deciding that the cleaning agent to be used in the washing process cannot be dosed controllably while the pump (7) operates at maximum flow rate.
  • control unit (9) enables the cleaning agent to be pumped at a smaller flow rate than the maximum flow rate of the pump (7).
  • the control unit (9) operates the pump (7) at 50 ml/s flow rate thus maintaining precise control.
  • control unit (9) decides after how many pumpings the pump (7) will pump the entire cleaning agent to be used. If the cleaning agent to be used will form excessive foam inside the channel (5) when pumped all at once, then the control unit (9) decreases the amount of cleaning agent to be pumped and increases the number of pumpings.
  • the control unit (9) enables the cleaning agent to be pumped more than once so as to minimize the number of pumpings. Dosing the amount of the cleaning agent to be used by being divided into smaller amounts, excessive foaming of the cleaning agent before mixing with the wash water is prevented and cleaning agent losses are decreased. For example, when the amount of cleaning agent to be used is 100 ml, the pump (7) doses the amounts of 50 ml, 25 ml, 15 ml and 10 ml in that order in 4 allotments. In this embodiment, the number of pumpings the pump (7) performs is minimized so that the washing duration is not prolonged.
  • control unit (9) enables the amount of cleaning agent to be used to be pumped in equal amounts in more than one time. Controlled dosing is provided by dividing the amount of cleaning agent to be used into equal amounts. For example, when the amount of cleaning agent to be used is 100 ml, the pump (7) doses an amount of 10 ml ten times.
  • the control unit (9) regulates the time between two operation phases of the pump (7) with respect to the duration that elapses for the cleaning agent to leave the detergent dispenser (3) and reach the tub (2). For example, if the duration for a certain amount of cleaning agent leaving the detergent dispenser (3) to reach the tub (2) is 10 seconds, the control unit (9) operates the pump (7) every 5 seconds.
  • control unit (9) decides how many times the water supply valve (8) will be opened/closed with respect to the water settings of the selected program and how many times the pump (7) will pump.
  • the water supply valve (8) opening/closing according to the operating schedule of the pump (7) increases washing effectiveness.
  • control unit (9) operates the water supply valve (8) just after the pump (7) completes one operational phase.
  • the phase of cleaning agent intake is prevented from prolonging the total washing duration.
  • the washer (1) comprises the control unit (9) that controls the water supply valve (8) such that the number of times the water supply valve (8) opens/closes is twice the number of pumpings performed by the pump (7).
  • the control unit (9) controls the water supply valve (8) such that the number of times the water supply valve (8) opens/closes is twice the number of pumpings performed by the pump (7).
  • water is flushed before and after the pump (7) operates.
  • the cleaning agent is prevented from leaving residue on the path to the tub (2) and from foaming uncontrollably.
  • the washer (1) comprises the control unit (9) that controls the water supply valve (8) independently from the number of pumping performed by the pump (7).
  • the water supply valve (8) is enabled to supply water.
  • the washer (1) is a washing machine.
  • the washer (1) is a laundry washing and drying machine.
  • the washer (1) is a dishwasher.
  • the washer (1) is controlled by a control method comprising the steps of:
  • the control unit (9) decides on the type of cleaning agent to be used depending on the washing phase, for example detergent or softener, and chooses the amount of cleaning agent to be used depending on the selected program or if the user entered the cleaning agent amount manually, overrides the amount determined by the program and selects the amount entered by the user as the cleaning agent amount to be used in the washing process.
  • the control unit (9) compares the selected amount with the cleaning agent amount that will create excessive foam inside the channel (5) when mixed with water and/or decides whether the pump (7) can be pumped controllably at maximum flow rate, then decides after how many pumpings and at which flow rate the cleaning agent amount to be used will be pumped by the pump (7). Furthermore, the control unit (9) decides how many times the water supply valve (8) will open and close. According to the determined criteria, the dosing unit (6) enables the cleaning agents to be mixed with water.
  • the cleaning agents used in the washing process are prevented from foaming before reaching the tub (2) and hence the washing effectiveness is prevented from decreasing. Besides, cleaning agent losses are minimized.

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

Abstract

The present invention relates to a washer (1) comprising a tub (2) wherein the washing process is performed, a detergent dispenser (3) having at least one partition (4) wherein the cleaning agents are stored, a channel (5) disposed between the tub (2) and the detergent dispenser (3) which provides liquid transfer, a dosing unit (6) that has at least one pump (7) that enables the cleaning agents to be sucked from the detergent dispenser (3) to be delivered to the tub (2) and at least one water supply valve (8).

Description

A WASHER AND THE CONTROL METHOD THEREOF
The present invention relates to a washer wherein washing is performed by using liquid cleaning agent and the control method thereof.
The rate of using liquid cleaning agents in washers like washing machines and laundry washer/dryers or dishwashers is increasing. Accordingly, different dosing systems are being developed for the liquid cleaning agents to be mixed with the wash water. In these systems, wherein the dosing is aimed to be performed accurately and effectively, the cleaning agents foaming and overflowing upon contacting water before reaching the tub, wherein the washing process is performed, causes the washing efficiency to decrease and results in not realizing the intended accurate and precise dosing.
In the Patent Application No. WO2007074037, a washing machine that uses a foam decreasing algorithm is disclosed.
The aim of the present invention is the realization of a washer wherein the cleaning agents are prevented from foaming before reaching the tub, and the control method thereof.
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 tub wherein the washing process is performed, a detergent dispenser wherein the cleaning agents are stored, a channel that is disposed between the tub and the detergent dispenser and that provides liquid transfer, a dosing unit that has at least one pump enabling cleaning agents to be sucked from the detergent dispenser to be delivered to the tub and at least one water supply valve, and furthermore a control unit that determines the amount of cleaning agent to be used depending on the selected program and the value entered by the user, that compares this amount with the amount of cleaning agent that will form excessive foam in the channel when mixed with water and/or with the amount of cleaning agent that the pump can pump in unit time and that controls the operation of the pump in accordance with the result. In the washer of the present invention, the cleaning agents are prevented from foaming before reaching the tub and decreasing washing efficiency by means of the pump being operated controllably.
In an embodiment of the present invention, the flow rate of the pump is determined by the control unit. The control unit changes the pump flow rate such that accurate dosing is provided.
In a derivative of this embodiment, the pump is operated by the control unit at a flow rate smaller than its maximum flow rate. The control unit decreases the flow rate of the pump for accurate dosing.
In an embodiment of the present invention, the control unit determines how many times the pump will perform the pumping operation. By means of this embodiment, formation of excessive foam in the channel is prevented, accurate dosing is provided and the cleaning agents are enabled to mix with the items to be washed better.
In a derivative of this embodiment, the control unit optimizes the number of pumping, enabling the pump to perform more than one pumping so that the washing duration is not prolonged while the cleaning agent is pumped and in order to prevent formation of foam.
In another derivative of this embodiment, the control unit enables the pump to pump the cleaning agent amount to be used in smaller and equal amounts and in more than one time. By means of this embodiment, accurate dosing is performed and formation of foam inside the channel is prevented.
In an embodiment of the present invention, the control unit determines the duration between two working phases of the pump by taking into consideration the duration that elapses for the pumped cleaning agent amount to reach the tub in order to prevent excessive foam formation inside the channel.
In an embodiment of the present invention, the control unit controls the water supply valve in accordance with the number of pumpings the pump performs and the water settings of the selected washing program in order that the dosing unit operates efficiently. By means of this embodiment, the pump and the water supply valve are enabled to operate in coordination with one another.
In an embodiment of the present invention, the control unit operates the water supply valve just after one working phase of the pump is completed, thus preventing the total washing duration from being prolonged.
In an embodiment of the present invention, the control unit controls the water supply valve so as to supply water just before the pump operates and as soon as the pumping operation is finished. In this embodiment, the interior of the channel is enabled to be always slippery and thus the cleaning agents are enabled to reach the tub without piling up.
In another embodiment of the present invention, the control unit controls the water supply valve independently from the pump and the number of pumpings. By means of this embodiment, the control unit delivers water by opening the water supply valve when required independently from the pump depending on the data received from the detectors inside the washer.
The washer of the present invention can be a washing machine, a laundry washer/dryer or a dishwasher in different embodiments.
In an embodiment of the present invention, the washer is controlled by the control unit included therein with the steps of:
  • deciding on the type of cleaning agent according to the washing phase,
  • deciding on the amount of cleaning agent to be used according to the selected program or data entered by the user,
  • comparing the amount of cleaning agent to be used with the amount of cleaning agent that foams excessively inside the channel when mixed with water and/or with the amount the pump can pump in unit time,
  • deciding on by which flow rate and how many times the pump will pump and how many times the water supply valve will open/close depending on the result of the comparison,
  • controlling the dosing unit in accordance with the determined values.
Thus, the problems like the cleaning agent to be used foaming and overflowing by being flushed with water at once etc. are solved.
By means the control unit and the control method used in the washer of the present invention, accurate and effective dosing is performed by controlling the dosing unit. The cleaning agents are prevented from foaming as much as possible before reaching the tub wherein the washing process is performed and washing efficiency is prevented from decreasing as a result of the cleaning agent losses due to overflowing.
The model embodiments related to the washer and the control method thereof realized in order to attain the aim of the present invention are illustrated in the attached figures, where:
Figure 1 – is the front schematic view of a washer.
The elements illustrated in the figures are numbered as follows:
1. Washer
2. Tub
3. Detergent dispenser
4. Partition
5. Channel
6. Dosing unit
7. Pump
8. Water supply valve
9. Control unit
The washer (1) comprises a tub (2) wherein the washing process is performed, a detergent dispenser (3) having at least one partition (4) wherein the cleaning agents are stored, a channel (5) that is disposed between the tub (2) and the detergent dispenser (3) and that provides liquid transfer, a dosing unit (6) that has at least one pump (7) enabling the cleaning agents to be sucked from the detergent dispenser (3) to be delivered to the tub (2) and at least one water supply valve (8).
In the washer (1), different types of cleaning agents, for example liquid detergent and softener are stored in different partitions (4) of the detergent dispenser (3) and the dosing unit (6) delivers the cleaning agent to be used in the washing process to the tub (2) by means of the channel (5).
The washer (1) of the present invention comprises a control unit (9)
  • that decides on the amount of cleaning agent to be used according to the selected program or data entered by the user,
  • that compares the determined amount of cleaning agent with the amount of cleaning agent that will foam excessively inside the channel (5) when mixed with water and/or
  • that controls the operation of the pump (7) by deciding whether or not the determined amount of cleaning agent can be pumped controllably in the maximum flow rate of the pump (7).
In the washer (1) of the present invention, the control unit (9) determines the amount of cleaning agent to be used according to the amount determined by the manufacturer depending on the selected program or manually entered by the user. Afterwards, the control unit (9) compares the decided amount with the cleaning agent amount that will form excessive foam inside the channel (5) and/or decides whether or not the pump (7) can pump at its maximum flow rate and controls the pump (7) for mixing the cleaning agent with the wash water according to the result.
In an embodiment of the present invention, the control unit (9) decides at which flow rate the pump (7) pumps. The control unit (9) changes the flow rate of the pump (7) upon deciding that the cleaning agent to be used in the washing process cannot be dosed controllably while the pump (7) operates at maximum flow rate.
In another derivative of this embodiment, the control unit (9) enables the cleaning agent to be pumped at a smaller flow rate than the maximum flow rate of the pump (7). By dosing the cleaning agent to be used at lower flow rates, excessive foaming of the cleaning agent before mixing with the wash water is prevented and cleaning agent losses are decreased. For example, if the amount of cleaning agent to be used is 100 ml and the maximum flow rate of the pump (7) is 500 ml/s, then the control unit (9) operates the pump (7) at 50 ml/s flow rate thus maintaining precise control.
In an embodiment of the present invention, the control unit (9) decides after how many pumpings the pump (7) will pump the entire cleaning agent to be used. If the cleaning agent to be used will form excessive foam inside the channel (5) when pumped all at once, then the control unit (9) decreases the amount of cleaning agent to be pumped and increases the number of pumpings.
In a derivative of this embodiment, the control unit (9) enables the cleaning agent to be pumped more than once so as to minimize the number of pumpings. Dosing the amount of the cleaning agent to be used by being divided into smaller amounts, excessive foaming of the cleaning agent before mixing with the wash water is prevented and cleaning agent losses are decreased. For example, when the amount of cleaning agent to be used is 100 ml, the pump (7) doses the amounts of 50 ml, 25 ml, 15 ml and 10 ml in that order in 4 allotments. In this embodiment, the number of pumpings the pump (7) performs is minimized so that the washing duration is not prolonged.
In another derivative of this embodiment, the control unit (9) enables the amount of cleaning agent to be used to be pumped in equal amounts in more than one time. Controlled dosing is provided by dividing the amount of cleaning agent to be used into equal amounts. For example, when the amount of cleaning agent to be used is 100 ml, the pump (7) doses an amount of 10 ml ten times.
In an embodiment of the present invention, when the pump (7) operates more than once, the control unit (9) regulates the time between two operation phases of the pump (7) with respect to the duration that elapses for the cleaning agent to leave the detergent dispenser (3) and reach the tub (2). For example, if the duration for a certain amount of cleaning agent leaving the detergent dispenser (3) to reach the tub (2) is 10 seconds, the control unit (9) operates the pump (7) every 5 seconds.
In an embodiment of the present invention, the control unit (9) decides how many times the water supply valve (8) will be opened/closed with respect to the water settings of the selected program and how many times the pump (7) will pump. The water supply valve (8) opening/closing according to the operating schedule of the pump (7) increases washing effectiveness.
In an embodiment of the present invention, the control unit (9) operates the water supply valve (8) just after the pump (7) completes one operational phase. Thus, in methods used for preventing the cleaning agent from foaming before reaching the tub (2), the phase of cleaning agent intake is prevented from prolonging the total washing duration.
In an embodiment of the present invention, the washer (1) comprises the control unit (9) that controls the water supply valve (8) such that the number of times the water supply valve (8) opens/closes is twice the number of pumpings performed by the pump (7). In this embodiment, water is flushed before and after the pump (7) operates. Thus, the cleaning agent is prevented from leaving residue on the path to the tub (2) and from foaming uncontrollably.
In an embodiment of the present invention, the washer (1) comprises the control unit (9) that controls the water supply valve (8) independently from the number of pumping performed by the pump (7). By controlling the water supply valve (8) independently, in situations where necessary, for example when foam sensors detect foam, the water supply valve (8) is enabled to supply water.
In an embodiment of the present invention, the washer (1) is a washing machine.
In an embodiment of the present invention, the washer (1) is a laundry washing and drying machine.
In an embodiment of the present invention, the washer (1) is a dishwasher.
In an embodiment of the present invention, the washer (1) is controlled by a control method comprising the steps of:
  • deciding on the type of cleaning agent to be used by taking into consideration the washing phase,
  • deciding on the amount of cleaning agent to be used in accordance with the selected program or if present, the data entered manually by the user,
  • comparing the amount of cleaning agent with the cleaning agent amount that will form excessive foam inside the channel (5) when mixed with water and/or deciding whether or not the pump (7) can operate at maximum flow rate controllably,
  • deciding on the flow rate and how many times the pump (7) will pump and how many times the water supply valve (8) will open/close according to the result of comparison,
  • pumping the amount of cleaning agent to be used by the pump (7), at the determined number of times and flow rate,
  • opening/closing the water supply valve (8) for a determined number of times.
The control unit (9) decides on the type of cleaning agent to be used depending on the washing phase, for example detergent or softener, and chooses the amount of cleaning agent to be used depending on the selected program or if the user entered the cleaning agent amount manually, overrides the amount determined by the program and selects the amount entered by the user as the cleaning agent amount to be used in the washing process. The control unit (9) compares the selected amount with the cleaning agent amount that will create excessive foam inside the channel (5) when mixed with water and/or decides whether the pump (7) can be pumped controllably at maximum flow rate, then decides after how many pumpings and at which flow rate the cleaning agent amount to be used will be pumped by the pump (7). Furthermore, the control unit (9) decides how many times the water supply valve (8) will open and close. According to the determined criteria, the dosing unit (6) enables the cleaning agents to be mixed with water.
By means of the control unit (9) and the control method used in the washer (1) of the present invention, the cleaning agents used in the washing process are prevented from foaming before reaching the tub (2) and hence the washing effectiveness is prevented from decreasing. Besides, cleaning agent losses are minimized.

Claims (15)

  1. A washer (1) comprising a tub (2) wherein the washing process is performed, a detergent dispenser (3) having at least one partition (4) wherein the cleaning agents are stored, a channel (5) disposed between the tub (2) and the detergent dispenser (3) which provides liquid transfer, a dosing unit (6) that has at least one pump (7) that enables the cleaning agents to be sucked from the detergent dispenser (3) to be delivered to the tub (2) and at least one water supply valve (8), characterized in that a control unit (9)
    - that decides on the amount of cleaning agent to be used according to the selected program or data entered by the user,
    - that compares the determined amount of cleaning agent with the amount of cleaning agent that will foam excessively inside the channel (5) and/or
    - that controls the operation of the pump (7) by deciding whether or not the determined amount of cleaning agent can be pumped controllably at the maximum flow rate of the pump (7).
  2. A washer (1) as in Claim 1, characterized in that the control unit (9) that decides at which flow rate the pump (7) operates.
  3. A washer (1) as in Claim 2 characterized in that the control unit (9) that enables the cleaning agent to be pumped at a smaller flow rate than the maximum flow rate of the pump (7).
  4. A washer (1) as in any one of the above Claims, characterized in that the control unit (9) that decides after how many pumping the cleaning agent amount to be used will be entirely pumped by the pump (7).
  5. A washer (1) as in Claim 4 characterized in that the control unit (9) that enables the cleaning agent amount to be used to be pumped more than once so as to minimize the number of pumpings.
  6. A washer (1) as in Claim 4 characterized in that the control unit (9) that enables the cleaning agent amount to be used to be pumped more than once in equal amounts.
  7. A washer (1) as in any one of the above claims characterized in that the control unit (9) that regulates the time between two operation phases of the pump (7) with respect to the duration that elapses for the cleaning agent to leave the detergent dispenser (3) and reach the tub (2).
  8. A washer (1) as in any one of the above claims, characterized in that the control unit (9) that decides how many times the water supply valve (8) will be opened/closed with respect to the water settings of the selected program and how many times the pump (7) will pump.
  9. A washer (1) as in any one of the above claims, characterized in that the control unit (9) that opens the water supply valve (8) just after the pump (7) completes one operational phase.
  10. A washer (1) as in any one of the above claims, characterized in that the control unit (9) that controls the water supply valve (8) such that the number of times the water supply valve (8) opens/closes is twice the number of pumpings performed by the pump (7).
  11. A washer (1) as in any one of the Claims 1 to 7 characterized in that the control unit (9) that controls the water supply valve (8) independently from the number of pumpings performed by the pump (7).
  12. A washer (1) as in any one of the above claims, which is a washing machine.
  13. A washer (1) as in any one of the Claims 1 to 11, which is a laundry washing and drying machine.
  14. A washer (1) as in any one of the Claims 1 to 11, which is a dishwasher.
  15. A control method for a washer (1) as in any one of the above claims, comprising the steps of:
    - deciding on the type of cleaning agent to be used by taking into consideration the washing phase,
    - deciding on the amount of cleaning agent to be used in accordance with the selected program or if present, the data entered manually by the user,
    - comparing the amount of cleaning agent to be used with the cleaning agent amount that will create excessive foam inside the channel (5) when mixed with water and/or deciding whether or not the pump (7) can be pumped at maximum flow rate controllably,
    - deciding on the flow rate and how many times the pump (7) will perform pumping and how many times the water supply valve (8) will open/close according to the result of comparison,
    - pumping the amount of cleaning agent to be used by the pump (7), at the determined number of times and flow rate,
    - opening/closing the water supply valve (8) in the determined number of times.
PCT/EP2014/072889 2013-12-04 2014-10-24 A washer and the control method thereof WO2015082126A1 (en)

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TRA2013/14197 2013-12-04
TR201314197 2013-12-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007074037A1 (en) 2005-12-29 2007-07-05 Arcelik Anonim Sirketi A washing machine and a control method
US20070261177A1 (en) * 2006-05-11 2007-11-15 General Electric Company Bulk dispensing system for washing machine
EP1884584A2 (en) * 2006-07-31 2008-02-06 Indesit Company S.p.A. A washing machine, in particular a laundry washer, comprising a large capacity washing agents dispenser
US20100000024A1 (en) * 2008-07-01 2010-01-07 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
DE102009029443A1 (en) * 2009-09-14 2011-03-24 BSH Bosch und Siemens Hausgeräte GmbH Water-bearing household appliance e.g. washing machine, for washing and drying laundry, has controller determining dosing quantity of agent as function of data for measuring agent when dosing device is controlled by controller
DE102012017323A1 (en) * 2011-09-23 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Aquiferous household appliance i.e. laundry treatment apparatus, for washing laundry, has container for accommodating amount of conditioning medium, where residual amount of conditioning medium in container is displayed by display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007074037A1 (en) 2005-12-29 2007-07-05 Arcelik Anonim Sirketi A washing machine and a control method
US20070261177A1 (en) * 2006-05-11 2007-11-15 General Electric Company Bulk dispensing system for washing machine
EP1884584A2 (en) * 2006-07-31 2008-02-06 Indesit Company S.p.A. A washing machine, in particular a laundry washer, comprising a large capacity washing agents dispenser
US20100000024A1 (en) * 2008-07-01 2010-01-07 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
DE102009029443A1 (en) * 2009-09-14 2011-03-24 BSH Bosch und Siemens Hausgeräte GmbH Water-bearing household appliance e.g. washing machine, for washing and drying laundry, has controller determining dosing quantity of agent as function of data for measuring agent when dosing device is controlled by controller
DE102012017323A1 (en) * 2011-09-23 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Aquiferous household appliance i.e. laundry treatment apparatus, for washing laundry, has container for accommodating amount of conditioning medium, where residual amount of conditioning medium in container is displayed by display device

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