CN110191985B - Laundry care appliance with control device - Google Patents
Laundry care appliance with control device Download PDFInfo
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- CN110191985B CN110191985B CN201880007446.3A CN201880007446A CN110191985B CN 110191985 B CN110191985 B CN 110191985B CN 201880007446 A CN201880007446 A CN 201880007446A CN 110191985 B CN110191985 B CN 110191985B
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- laundry care
- water
- substance
- control device
- lye container
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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
- 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
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
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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
- 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
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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
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
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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)
- Detergent Compositions (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to a laundry care appliance (100) having a lye container (105) for receiving washing liquor, a water supply device (115) for supplying water into the lye container (105), a substance supply device (119) for supplying a laundry care substance into the lye container (105), and a control device (123) for controlling the water supply device (115) and the substance supply device (119), wherein the control device (123) is designed to activate the water supply device (115) during a metering time period in order to supply a quantity of water into the lye container (105), to determine the amount of laundry care substance as a function of the quantity of water supplied during the metering time period, and to activate the substance supply device (119) during the metering time period in order to supply the determined amount of laundry care substance into the lye container (105).
Description
Technical Field
The invention relates to a laundry care appliance with a control device.
Background
In order to achieve effective laundry care of the laundry in the laundry care appliance, water and a laundry care substance, for example a solid or liquid detergent or softener, are supplied to the lye container of the laundry care appliance. In order to be able to ensure a sufficient laundry care effect, an optimum amount of laundry care substance must be added to the lye container, wherein in particular an overdosing or an under-dosing of the laundry care substance must be avoided. It should furthermore be ensured that the delivered amount of the laundry care substance is delivered in the shortest possible time period.
Publication WO 2016/102011 a1 describes a method for washing laundry in a washing machine.
Publication DE 102012109840 a1 describes a method for operating a washing machine.
Publication EP 2447411 a2 describes a washing machine.
Disclosure of Invention
The object of the present invention is to provide a laundry care appliance which ensures an advantageous delivery of laundry care substances.
This object is achieved by the subject matter having the features according to the independent claims. Advantageous embodiments are the subject matter of the dependent claims, the description and the figures.
According to a first aspect, the object is achieved according to the invention by a laundry care appliance having a lye container for receiving washing liquor, a water feed device for feeding water into the lye container, a substance feed device for feeding laundry care substance into the lye container, and a control device for controlling the water feed device and the substance feed device, wherein the control device is designed to activate the water feed device during a dosing period in order to feed a quantity of water into the lye container, wherein the control device is designed to determine the quantity of laundry care substance depending on the quantity of water fed during the dosing period, wherein the control device is designed to activate the substance feed device during the dosing period in order to feed the determined quantity of laundry care substance into the lye container.
The technical advantage achieved thereby is that both the quantity of water and the corresponding specific quantity of laundry care substance required for achieving effective laundry care are delivered to the lye container during the dosing period. The conveyed laundry care substance is dissolved in the conveyed water and forms the washing liquid required for the laundry care, which is received in the lye container.
In conventional laundry care appliances, the laundry care substance is fed to the lye container over a long period of time during a plurality of different, temporally successive dosing steps. This prolongs the duration of the laundry care program and does not always ensure a precisely metered introduction of the laundry care substance into the lye container.
In the laundry care appliance according to the disclosure, water and the laundry care substance are delivered during a single dosing period. As soon as water is supplied to the lye container by the water supply device, the control device determines the respective laundry care substance, which is also supplied to the lye container during the dosing period, as a function of the quantity supplied.
This ensures that the water and the laundry care substance are fed into the lye container in time agreement with one another during the dosing period. The dosing in connection with the water supply enables the laundry care substance to be rapidly supplied together with the water, whereby the duration of the laundry care program can be shortened. Furthermore, the required laundry care substance or the required water consumption can be set as desired in order to achieve a particularly effective and optimized dosing of the laundry care substance.
By laundry care appliance is understood an appliance for laundry care, for example a washing machine or a laundry dryer. In particular, the laundry care appliance is understood to be a household laundry care appliance. In other words, laundry care appliances are used in domestic services and with the aid of which household-normal laundry is treated.
In an advantageous embodiment of the laundry care appliance, the control device is designed to activate the substance delivery device and the water delivery device simultaneously in order to deliver the laundry care substance and the water simultaneously to the lye container during the dosing time period, or the control device is designed to activate the substance delivery device and the water delivery device time-staggered in order to deliver the water and the laundry care substance to the lye container time-staggered during the dosing time period.
The technical advantage achieved thereby is that a particularly efficient supply of water and washing liquid to the lye container is ensured. When water and the laundry care substance are simultaneously supplied to the lye container, a particularly rapid dosing of the laundry care substance can be ensured. Alternatively, the control device can activate the substance supply device and the water supply device at intervals during the dosing time, either by first supplying water to the lye container and then supplying the laundry care substance to the lye container with a time offset, or by first supplying the laundry care substance to the lye container and then supplying the water to the lye container with a time offset. The control device can activate the substance delivery device and the water delivery device in such a time-staggered manner that the delivery of the laundry care substance is directly connected to the water delivery, or the delivery of water is directly connected to the laundry care substance delivery. This ensures a particularly rapid delivery of water and laundry care substances.
In a further advantageous embodiment of the laundry care appliance, the water supply device and the washing liquid supply device are fluidically connected to the lye container by means of a supply line, wherein the supply line in particular comprises a supply valve, wherein the supply valve is designed to disconnect the supply line in a first valve position and to connect the supply line in a second valve position, wherein the control device is designed to determine the laundry care substance quantity when the supply valve is switched into the first valve position or into the second valve position.
The technical advantage achieved thereby is that water and laundry care substance can be effectively conveyed to the lye container by means of the common conveying line. Furthermore, the determination of the laundry care quantity is temporally linked to the actuation of the delivery valve, wherein a particularly rapid delivery of the determined laundry care quantity into the lye container is ensured. The laundry care substance quantity can be determined by the control device either when the delivery valve is switched into the first valve position, i.e. when the delivery valve is closed, or when the delivery valve is switched into the second valve position, i.e. when the delivery valve is opened.
In a further advantageous embodiment of the laundry care appliance, the water supply device is fluidically connected to the lye container via a water supply line and the substance supply device is fluidically connected to the lye container via a substance supply line, wherein the water supply line comprises in particular a supply valve, wherein the supply valve is designed to disconnect the supply line in a first valve position and to connect the supply line in a second valve position, wherein the control device is designed to determine the laundry care substance quantity when the supply valve is switched into the first valve position or into the second valve position.
The technical advantage achieved thereby is that water and the laundry care substance can be supplied to the lye container independently of one another by separate supply of water by the water supply line and supply of the laundry care substance by the substance supply line. The determination of the laundry care quantity is thereby temporally linked to the actuation of the delivery valve in the water delivery line, which ensures a particularly rapid delivery of the determined laundry care quantity into the lye container. In this case, the laundry care substance quantity can be determined either when the delivery valve is switched into the first valve position, i.e. when the delivery valve is closed, or when the delivery valve is switched into the second valve position, i.e. when the delivery valve is opened.
In a further advantageous embodiment of the laundry care appliance, the water feed device is designed to feed water to the lye container at a water flow rate, and the control device is designed to determine the laundry care substance quantity as a function of the water flow rate.
The technical advantage achieved thereby is that the control device can determine the laundry care substance quantity particularly accurately and rapidly, taking into account the water flow rate. The water flow rate is in particular dependent on the geometry of the water supply and/or the supply line used. The water flow rate can have a structurally dependent constant value which is supplied to the control device in order to make an effective determination of the laundry care substance quantity. The water flow rate as a constant value can be stored in the control device or determined by the control device during calibration of the laundry care appliance, for example. The laundry care substance quantity can thus be determined easily and advantageously based on the water flow rate in relation to the quantity of water delivered.
In a further advantageous embodiment of the laundry care appliance, the control device is designed to determine a dosing rate of the delivered laundry care substance as a function of the quantity of water delivered during a dosing period, and to deliver the determined amount of the laundry care substance to the lye container during the dosing period at the dosing rate.
The technical advantage achieved thereby is that the delivery rate of the laundry treatment substance can be adapted to the quantity of water delivered by determining the metering flow.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a weight detection device, in particular a weighing device, for detecting the weight of the quantity of water delivered, and the control device is designed to determine the laundry care substance quantity as a function of the weight of the quantity of water delivered.
The technical advantage achieved thereby is that the quantity of laundry care substance delivered can be determined particularly advantageously and rapidly by weighing the quantity of water delivered.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a volume flow sensor for detecting a volume flow of the water quantity supplied to the lye container, and the control device is designed to determine the laundry care substance quantity as a function of the supplied water quantity and the detected volume flow.
The technical advantage achieved thereby is that by detecting the volume flow of the delivered water quantity, the control device can determine the laundry care substance quantity particularly accurately. In this case, the volume flow sensor measures in particular the volume flow of water flowing through the supply line during the water supply. This is particularly advantageous when water and laundry care substance quantities are simultaneously supplied to the lye container, since in particular the supply of laundry care substance quantities can be terminated quickly with the end of the water supply.
In a further advantageous embodiment of the laundry care appliance comprising a washing drum for receiving the laundry, the laundry care appliance comprises a weight detection device for detecting the weight of the laundry in the washing drum, and the control device is designed to determine the laundry care substance quantity as a function of the quantity of water conveyed and the weight of the laundry, wherein the weight detection device comprises in particular a weighing device, a device for detecting the drop of the oscillating system of the washing drum, and/or a device for detecting a power parameter of the drive of the washing drum.
The technical advantage achieved thereby is that, by detecting the laundry weight, the control device is designed such that the laundry care substance quantity can be determined particularly accurately, since the optimally required laundry care substance quantity is dependent in particular on the water quantity and thus on the laundry weight in the washing drum. The weighing device, the device for detecting the drop of the oscillating system of the washing drum, and/or the device for detecting the power variable of the drive of the washing drum can realize the especially accurate determination of the weight of the washing in the washing drum.
In a further advantageous embodiment of the laundry care appliance, the control device is designed to determine the amount of laundry care substance delivered by the substance delivery device to the lye container on the basis of the following formula: mass of laundry care product F basic dosage mMess/mReferenzWherein F corresponds to a factor specific to the laundry care appliance, wherein mMessCorresponding to the measured weight of the laundry in the washing drum, wherein mReferenzCorresponding to a reference weight of the laundry, wherein the basic dosage corresponds to the dosage of the amount of laundry care substance when the laundry is loaded at the reference weight.
The technical advantage achieved thereby is that the control device can determine the laundry care substance quantity particularly effectively. The basic dosage corresponding to the reference weight is used as a basic standardQuantity mReferenzThe metered dose of the amount of laundry care substance when loaded with laundry and may in particular be between 10ml and 200ml, in particular 75 ml. Reference weight mReferenzThe reference weight is determined according to a usual measuring cycle and can be, for example, 2kg, but can also be varied by the user of the laundry care appliance himself. By a factor mMess/mReferenzThe basic dosage can be adjusted according to the weight of the laundry detected by the weight detection means. The factors specific to the laundry care appliance include, in particular, a scaling factor, a specific factor and/or a customer factor. The scaling factor here comprises in particular a value range between 0 and 2.55, in particular 1, and is dependent on the laundry care appliance used. The specific factors here include, in particular, values of 0.3, 0.4 and 1 and are dependent on the laundry care appliance used. The customer factor here comprises in particular values of 0.7, 1 and 1.3 and is dependent on the laundry care appliance used, for example, in order to achieve an automatic adaptation to the degree of soiling of the laundry, and can be changed by the user of the laundry care appliance, for example, in order to achieve a manual adaptation to the degree of soiling of the laundry.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a program selection device for selecting a laundry care program, wherein the control device is designed to determine the laundry care substance quantity as a function of the quantity of water delivered and the selected laundry care program.
The technical advantage achieved thereby is that a particularly effective determination of the laundry care substance quantity by the control device is ensured. Depending on the use of the laundry care program, different amounts of laundry care substance can be required, since, for example, different amounts of laundry care substance are required for the treatment of woolen laundry than, for example, for the treatment of laundry made of cotton.
In a further advantageous embodiment of the laundry care appliance, the control device is designed to determine the amount of laundry care substance delivered by the substance delivery device to the lye container on the basis of the following formula: quality of laundry care product F basic dosageVMess/VReferenzWherein F corresponds to a factor specific to the laundry care appliance, wherein VMessCorresponding to the volume of water corresponding to the quantity of water to be delivered, wherein VReferenzCorresponding to a reference volume of water to be delivered, wherein the basic dosage corresponds to the volume VReferenzLower dosage of laundry care substance.
The technical advantage achieved thereby is that the control device can determine the laundry care substance quantity particularly effectively. The basic dosing amount, which corresponds to the dosing amount of the laundry care substance when water is delivered in the reference volume and can be in particular between 10ml and 200ml, in particular 75ml, is used as a basic criterion here. The reference volume is determined according to the usual measuring cycle and can be, for example, 16 liters, but it can also be changed by the user of the laundry care appliance himself. By a factor VMess/VReferenzThe basic dosage can be adjusted according to the amount of water actually delivered. The factors specific to the laundry care appliance include, in particular, a scaling factor, a specific factor and/or a customer factor. The scaling factor here comprises in particular a value range between 0 and 2.55, in particular 1, and is dependent on the laundry care appliance used. The specific factors here include, in particular, values of 0.3, 0.4 and 1 and are dependent on the laundry care appliance used. The customer factor here comprises in particular values of 0.7, 1 and 1.3 and is dependent on the laundry care appliance used, for example, in order to achieve an automatic adaptation to the degree of soiling of the laundry, and can be changed by the user of the laundry care appliance, for example, in order to achieve a manual adaptation to the degree of soiling of the laundry.
In a further advantageous embodiment of the laundry care appliance, the control device is designed to activate the water feed device several times during the dosing time period in order to feed the water quantity to the lye container in each case in several feed processes, the control device is designed to determine the respective laundry care substance quantity as a function of the respectively fed water quantity, and the control device is designed to activate the substance feed device several times during the dosing time period in order to feed the respective laundry care substance quantity to the lye container in the respective feed process.
The technical advantage achieved thereby is that the water supplied to the lye container and the laundry care substance supplied to the lye container are not supplied to the lye container in a single supply process, but are supplied to the lye container in a decentralized manner in a plurality of supply processes. This ensures a particularly effective and uniform wetting of the laundry by the water and the laundry care substance.
In a further advantageous embodiment of the laundry care appliance, the control device is designed to convey the maximum laundry care quantity to the lye container in a conveying process if the determined laundry care quantity exceeds a maximum threshold value, wherein the difference between the determined laundry care quantity and the maximum laundry care quantity is conveyed to the lye container in a further conveying process during the dosing time period.
The technical advantage achieved thereby is that an excessive delivery of the laundry care substance can be prevented if the determined laundry care substance quantity has an excessively large value. The maximum laundry care quantity corresponding to the maximum threshold value corresponds to a laundry care quantity of such a quantity that it can be maximally delivered to the lye container during a single delivery process without causing an excessive delivery of the laundry care substance. Since the determined laundry mass is greater than the maximum laundry mass in this case, the difference between the determined laundry mass and the maximum laundry mass is delivered in a further delivery process during the dosing period, so that the entire laundry mass can be completely delivered.
In a further advantageous embodiment of the laundry care appliance, the control device is designed not to convey the determined laundry care substance quantity to the lye container during a conveying process if the determined laundry care substance quantity falls below a minimum threshold value, wherein the control device is designed to convey the determined laundry care substance quantity to the lye container during a further conveying process during the dosing time period.
The technical advantage achieved thereby is that, if the determined laundry care substance quantity has a too low value, unnecessary activation of the substance delivery device is prevented. If the determined laundry care substance quantity is below the minimum threshold value, the determined laundry care substance quantity is not conveyed during this conveying process, but instead during a further conveying process.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has a foam detection device for detecting foam in the laundry care appliance, wherein the control device is designed to deactivate the substance delivery device or to reduce a defined laundry care substance quantity delivered to the lye container if foam in the laundry care appliance is detected.
The technical advantage achieved thereby is that the foam can be prevented from being discharged from the laundry care appliance. If foam is detected, the control device deactivates the material delivery device or delivers the determined laundry care mass to the lye container not completely but within a reduced range in order to prevent further foam formation.
According to a further aspect, the object is achieved according to the invention by a method for treating laundry in a laundry care appliance, wherein the laundry care appliance has a lye container for receiving washing liquor, a water feed device for feeding water into the lye container, a substance feed device for feeding laundry care substances into the lye container, and a control device for controlling the water feed device and the substance feed device, wherein the method comprises the following steps: the method comprises the steps of activating the water delivery device by the control device during a dosing period in order to deliver a quantity of water to the lye container, determining a quantity of the laundry care substance by the control device during the dosing period as a function of the quantity of water delivered, and activating the substance delivery device by the control device during the dosing period in order to deliver the determined quantity of the laundry care substance to the lye container.
The technical advantage achieved thereby is that an effective metered delivery of the laundry care substance into the lye container is achieved during the metering time period.
Drawings
Embodiments of the invention are illustrated in the drawings and described in detail below. In the drawings:
fig. 1 shows a schematic view of a laundry care appliance;
FIG. 2 shows a schematic representation of a laundry care appliance with a lye container and a control device; and
fig. 3 shows a method for conditioning laundry in a laundry care appliance.
Detailed Description
Fig. 1 shows a schematic view of a conventional laundry care appliance 100, for example a washing machine. The laundry care appliance 100 comprises a storage container 101, which is also referred to as a rinsing housing and into which detergent or other laundry care substances can be introduced. The laundry care appliance 100 comprises a door 103 for loading the laundry care appliance 100 with laundry.
Fig. 2 shows a schematic view of a laundry care appliance with a lye container and a control device. The laundry care appliance 100 comprises a lye container 105 for receiving washing liquid and a washing drum 107 arranged in the lye container 105 for receiving the laundry. The lye container 105 comprises a discharge opening 109. The outlet 109 is connected to a line 111, which in turn is connected to a pump 113, which in turn is designed to pump washing lye out of the lye container 105 through the outlet 109 and out of the laundry care appliance 100 through the line 111.
The laundry care appliance 100 further comprises a water feed 115 for feeding water into the lye container 105 via a feed line 117. The laundry care appliance 100 further comprises a substance feed device 119 for feeding laundry care substances into the lye container 105 via the feed line 117. The water feed device 115 is connected to a control device 123 via a first control connection 121, wherein the control device 123 controls the water feed device 115. The substance delivery means 119 is connected to the control means 123 via a second control connection 125, wherein the control means 123 controls the substance delivery means 119. When this is not shown in fig. 2, the water supply device 115 and the substance supply device 119 are alternatively each connected separately to the lye container 105 via a water supply line or a substance supply line.
The addition or dosing of laundry care substances, such as liquid detergents, softeners and solid detergents, into the lye container 105 takes place in the conventional laundry care appliance 100 as follows. After a dosing in the pretreatment method, an initial dosing is carried out in the wetting phase at the beginning of the main wash phase and a final dosing is carried out at the end of the wetting phase in the main wash. In conventional laundry care appliances 100, the required dosage can be predicted only to a limited extent on the basis of the properties of the laundry with respect to quality, water absorption and degree of soiling. The required dosage is known at the end of the wetting phase, which can result in high expenditure of time or water and energy during the laundry care process.
Automatic dosing of the laundry care substances, such as detergent, washing agent and builder, can be carried out by the laundry care appliance 100 according to the disclosure, whereby the laundry care appliance 100 is provided with the required amount of laundry care substance in advance. In addition, the consumption of water and time for adding the laundry care substance is minimized and under-or over-dosing of the laundry care substance can be avoided.
During the dosing period, the control device 123 activates the water delivery device 115 in order to deliver a quantity of water into the lye container 105. The control device 123 is designed here to determine the laundry care substance quantity as a function of the quantity of water delivered. The control device 123 is designed to activate the substance supply device 119 during the metering time period in order to supply the determined amount of laundry care substance to the lye container 105.
The control device 123 is in particular designed to activate the water feed device 115 several times during the metering period in order to feed the water quantity to the lye container 105 in each case in several feed processes. The control device 123 is designed to determine the respective laundry care substance quantity as a function of the respectively delivered water quantity. The control device 123 is designed to activate the substance delivery device 119 several times during the metering time period in order to deliver the respective amount of laundry treatment substance to the lye container 105 during the respective delivery process.
The delivery or dosing of the laundry care substance at the end of the wetting phase is thus not carried out once, but rather is dependent on the delivery of water into the lye container 105 during the dosing period. During or after each water feed, the control device 123 determines the laundry care substance required in this case and ensures a reliable feed of the required laundry care substance quantity.
The control device 123 can here alternatively activate the water delivery device 115 and the substance delivery device 119 simultaneously in order to deliver water and the laundry care substance simultaneously to the lye container 105 during the dosing period. Alternatively, the control device 123 can activate the water delivery device 115 and the substance delivery device 119 in a time-staggered manner, in order to deliver the water and the laundry care substance to the lye container 105 in a time-staggered manner. The determination of the laundry care substance quantity can be carried out by the control device 123 either simultaneously with the water feed or at a time offset after the water feed has started.
The supply line 117 may be a supply valve, which fluidically disconnects the supply line 117 in a first valve position and connects the supply line 117 in a second valve position. For example, the opening or closing process of the delivery valve can be associated with the determination of the laundry care substance quantity and can take place continuously or at temporally defined intervals during the water delivery.
The control device 123 is designed to determine the amount of laundry care substance delivered by the substance delivery device 119 to the lye container 105 on the basis of the following formula: the quality of the laundry care product is F.basic dosage VMess/VReferenzWherein F corresponds to a factor specific to the laundry care appliance, wherein VMessCorresponding to the volume of water corresponding to the quantity of water to be delivered, wherein VReferenzCorresponding to a reference volume of water to be delivered, wherein the basic dosage corresponds toIn a reference volume VReferenzLower dosage of laundry care substance. Reference volume VReferenzIn this case, it can be set by the developer himself or by the user of the laundry care appliance 100 via the interface itself, since the corresponding value can be read, for example, from the label of the medium itself. Here, the user can input a reference volume V in litersReferenzOr the water level, which is converted into the reference volume V by the control device 123Referenz. In this case, the calibration factor includes, in particular, a value range between 0 and 2.55, in particular 1, and is dependent on the laundry care appliance 100 used. The specific factors here comprise in particular values of 0.3, 0.4 and 1 and are dependent on the laundry care appliance 100 used. The customer factor here comprises in particular values of 0.7, 1 and 1.3 and is dependent on the laundry care appliance 100 used and can be changed by the user of the laundry care appliance 100. The factor F thus enables the laundry care substance quantity to be adjusted manually or automatically as a function of the degree of soiling of the laundry.
The quantity of laundry care substance can be determined at the water inlet at the same time as the dosing process, depending on the water flow rate of the water quantity delivered, and/or the dosing speed of the quantity of laundry care substance can be set in proportion to the water flow rate, so that the dosing of the laundry care appliance 100 ends, for example, with or shortly after the end of the water supply. Alternatively, the volume flow of the delivered water can be determined by means of a volume flow sensor, and the control device 123 can determine the quantity of laundry care substance or the dosing flow of the quantity of laundry care substance as a function of the delivered water quantity and the detected volume flow.
Furthermore, the laundry care appliance 100 comprises weight detection means for detecting the weight of the laundry in the washing drum 107, for example weighing means, means for detecting the amount of lowering of the oscillating system of the washing drum 107 and/or means for detecting a power parameter of the drive of the washing drum 107. The control device 123 is designed to determine the quantity of laundry care substance as a function of the quantity of water delivered and the load of laundry, and thus to achieve an accurate determination of the required quantity of laundry care substance. The control device 123 is designed in particular forThe amount of laundry care substance delivered to the lye container 105 by the substance delivery means 119 is determined on the basis of the following formula: mass of laundry care product F basic dosage mMess/mReferenzWherein F corresponds to a factor specific to the laundry care appliance, wherein mMessCorresponding to the detected weight of the laundry in the washing drum 107, wherein mReferenzCorresponding to a reference weight of the laundry, wherein the basic dosage amount corresponds to the reference weight mReferenzDosage of the amount of laundry care substance when loaded with laundry. Reference weight mReferenzIn this case, it can be set by the developer himself or by the user of the laundry care appliance 100 via the interface itself, since the corresponding value can be read, for example, from the label of the medium itself. The factors specific to the laundry care appliance include, in particular, a calibration factor, a specific factor and/or a customer factor. In this case, the calibration factor includes, in particular, a value range between 0 and 2.55, in particular 1, and is dependent on the laundry care appliance 100 used. The specific factors here comprise in particular values of 0.3, 0.4 and 1 and are dependent on the laundry care appliance 100 used. The customer factor here comprises in particular values of 0.7, 1 and 1.3 and is dependent on the laundry care appliance 100 used and can be changed by the user of the laundry care appliance 100.
Furthermore, the laundry care appliance 100 can comprise program selection means for selecting a laundry care program, wherein the control means 123 are designed to determine the laundry care substance quantity as a function of the quantity of water delivered and the selected laundry care program. Instead of weight-related measurements or, alternatively, textile properties are taken into account for determining the laundry care substance quantity, for example, assuming that the water absorption in the procedure terry cloth is x and the water absorption in the procedure wool is y.
The control device 123 is designed in particular to convey the maximum laundry care quantity to the lye container 105 in one conveying process if the determined laundry care quantity exceeds a maximum threshold value. The control device 123 thus limits the quantity of laundry care substance delivered in this case to a maximum laundry care substance quantity in order to prevent the laundry care substance from flowing out of the delivery line, in particular the delivery siphon. In this case, the difference between the determined laundry care quantity and the maximum laundry care quantity is supplied to the lye container 105 in a further supply process during the dosing period.
The control device 123 is designed in particular such that, if the determined quantity of laundry care substance falls below a minimum threshold value, the determined quantity of laundry care substance is not supplied to the lye container 105 during a supply process. This ensures that, in the case of particularly low laundry care substance quantities, it is not necessary to additionally activate the substance delivery device 119, as a result of which resources can be saved. In this case, the control device 123 is designed to deliver the determined amount of laundry care substance to the lye container 105 during a further delivery process during the dosing time period.
After the dosing period, a final water supply for a final rinse-in of the laundry care substance can be provided. The final water supply can be proportional to the total water quantity, the total metering quantity, to the final metering quantity or be set to a fixed value.
When foam is detected before the final dosing is achieved, the dosing can be interrupted and the setpoint calculation can be adjusted or ended.
Fig. 3 shows a method for conditioning laundry in a laundry care appliance. The method comprises a first step of: the water feeding means 115 is activated 201 by the control means 123 during the dosing period in order to feed an amount of water to the lye container 105. The method 200 comprises a second step of: the quantity of the laundry care substance is determined 203 by the control device 123 during the dosing period as a function of the quantity of water delivered. The method 200 comprises a third step: during the metering period, the substance feed device 119 is activated 205 by the control device 123 in order to feed the determined amount of laundry care substance to the lye container 105.
All the features described and shown in connection with the individual embodiments of the invention can be provided in the subject-matter according to the invention in different combinations in order to achieve the advantageous effects of the features at the same time.
The scope of protection of the invention is given by the claims and is not limited to the features described in the description or shown in the drawings.
List of reference numerals
100 washing nursing device
101 storage container
103 door
105 lye container
107 washing drum
109 discharge outlet
111 pipeline
113 pump
115 water delivery device
117 conveying pipeline
119 material delivery device
121 first control connection
123 control device
125 second control connection
200 method for treating laundry
201 first step: activated water delivery device
203 second step: determining the quality of laundry care products
205 a third step: activating the substance delivery device.
Claims (16)
1. A laundry care appliance (100) having a lye container (105) for receiving washing liquor, a water feed device (115) for feeding water into the lye container (105), a substance feed device (119) for feeding laundry care substances into the lye container (105) and a control device (123) for controlling the water feed device (115) and the substance feed device (119), wherein,
the control device (123) is designed to activate the water supply device (115) during a metering period in order to supply a quantity of water to the lye container (105),
the control device (123) is designed to determine the quantity of the laundry care substance as a function of the quantity of water delivered during the dosing period, and
the control device (123) is designed to activate the substance delivery device (119) during the dosing time period in order to deliver the determined laundry care substance quantity to the lye container (105),
characterized in that the control device (123) is designed to activate the water supply device (115) several times during the metering period in order to supply a quantity of water to the lye container (105) in each case in several supply processes,
the control device (123) is designed to determine the respective quantity of the laundry care substance on the basis of the respectively delivered quantity of water and to
The control device (123) is designed to activate the mass transport device (119) several times during the dosing time period in order to transport the respective amount of laundry care mass to the lye container (105) during the respective transport process, wherein the control device (123) is designed to transport the maximum amount of laundry care mass to the lye container (105) during one transport process if the determined amount of laundry care mass exceeds a maximum threshold value, wherein the difference between the determined amount of laundry care mass and the maximum amount of laundry care mass is transported to the lye container (105) during a further transport process during the dosing time period.
2. The laundry care appliance (100) according to claim 1, characterized in that the control device (123) is designed for simultaneously activating the substance delivery device (119) and the water delivery device (115) in order to deliver laundry care substance and water simultaneously to the lye container (105) during the dosing time period, or the control device (123) is designed for time-staggered activation of the substance delivery device (119) and the water delivery device (115) in order to deliver water and laundry care substance to the lye container (105) time-staggered during the dosing time period.
3. Laundry care appliance (100) according to claim 1 or 2, characterized in that the water delivery device (115) and the substance delivery device (119) are fluidically connected to the lye container (105) by a delivery line (117).
4. A laundry care appliance (100) as claimed in claim 3, characterized in that the conveying line (117) comprises a conveying valve, wherein the conveying valve is designed to disconnect the conveying line (117) in a first valve position and to connect the conveying line (117) in a second valve position, wherein the control device (123) is designed to determine the laundry care substance quantity when the conveying valve is switched into the first valve position or into the second valve position.
5. Laundry care appliance (100) according to claim 1 or 2, characterized in that the water conveying device (115) is fluidically connected to the lye container (105) by a water conveying line and the substance conveying device (119) is fluidically connected to the lye container (105) by a substance conveying line.
6. A laundry care appliance (100) as claimed in claim 5, characterized in that the water supply line comprises a supply valve, wherein the supply valve is designed to disconnect the water supply line in a first valve position and to connect the water supply line in a second valve position, wherein the control device (123) is designed to determine the laundry care substance quantity when the supply valve is switched into the first valve position or into the second valve position.
7. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, characterized in that the water conveying means (115) are designed for conveying water to the lye container (105) at a water flow rate and the control means (123) are designed for determining the laundry care substance quantity as a function of the water flow rate.
8. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, characterized in that the laundry care appliance (100) comprises a volume flow sensor for detecting a volume flow of the water quantity delivered to the lye container (105), and the control device (123) is designed for determining the laundry care substance quantity as a function of the delivered water quantity and the detected volume flow.
9. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, characterized in that the laundry care appliance (100) comprises a washing drum (107) for receiving laundry, the laundry care appliance (100) comprises weight detection means for detecting the weight of the laundry in the washing drum (107), and the control means (123) are designed for determining the laundry care substance quantity as a function of the quantity of water conveyed and the weight of the laundry.
10. A laundry care appliance (100) as claimed in claim 9, characterized in that the control device (123) is designed to determine the amount of laundry care substance delivered by the substance delivery device (119) to the lye container (105) on the basis of the following formula:
mass of laundry care product F basic dosage mMess/mReferenz
Wherein F corresponds to a factor specific to the laundry care appliance, wherein mMessCorresponding to the detected weight of the laundry in the washing drum (107), wherein mReferenzCorresponding to a reference weight of the laundry, wherein the basic dosage corresponds to the dosage of the amount of laundry care substance when the laundry is loaded at the reference weight.
11. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, 10, characterized in that the laundry care appliance (100) comprises program selection means for selecting a laundry care program, wherein the control means (123) are designed for determining the laundry care substance quantity as a function of the quantity of water delivered and the selected laundry care program.
12. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, 10, characterized in that the control device (123) is designed for determining the laundry care substance quantity delivered by the substance delivery device (119) to the lye container (105) on the basis of the following formula:
the quality of the laundry care product is F.basic dosage VMess/VReferenz
Wherein F corresponds to a factor specific to the laundry care appliance, wherein VMessCorresponding to the volume of water corresponding to the quantity of water to be delivered, wherein VReferenzCorresponding to a reference volume of water to be delivered, wherein the basic dosage corresponds to the volume VReferenzLower dosage of laundry care substance.
13. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, 10, characterized in that the control device (123) is designed not to convey the determined laundry care substance quantity to the lye container (105) during one conveying process if the determined laundry care substance quantity is below a minimum threshold value, wherein the control device (123) is designed to convey the determined laundry care substance quantity to the lye container (105) during a further conveying process during the dosing time period.
14. Laundry care appliance (100) according to any of claims 1, 2, 4, 6, 10, characterized in that the laundry care appliance (100) has a foam detection device for detecting foam in the laundry care appliance (100), wherein the control device (123) is designed to deactivate the substance conveying device (119) or to reduce the determined amount of laundry care substance conveyed to the lye container (105) if foam in the laundry care appliance (100) is detected.
15. A laundry care appliance (100) as claimed in claim 9, characterized in that the weight detection means comprise a weighing device, a device for detecting the amount of lowering of the oscillating system of the washing drum (107), or a device for detecting a power parameter of the drive of the washing drum (107).
16. A method (200) for treating laundry in a laundry care appliance (100), wherein the laundry care appliance (100) has a lye container (105) for receiving washing liquor, a water feed device (115) for feeding water into the lye container (105), a substance feed device (119) for feeding laundry care substances into the lye container (105), and a control device (123) for controlling the water feed device (115) and the substance feed device (119), wherein the method (200) comprises the following steps:
activating the water delivery device (115) by the control device (123) during a dosing period in order to deliver a quantity of water to the lye container (105),
determining the amount of laundry care substance during the dosing period by the control device (123) as a function of the amount of water delivered, and
activating the substance delivery device (119) by means of the control device (123) during the dosing time period in order to deliver the determined laundry care substance quantity to the lye container (105),
characterized in that the water delivery device (115) is activated a plurality of times by the control device (123) during the dosing time period in order to deliver a respective quantity of water to the lye container (105) in a plurality of delivery processes, in that the quantity of laundry care substance is determined by the control device (123) in each case as a function of the respectively delivered quantity of water, and in that the substance delivery device (119) is activated a plurality of times by the control device (123) during the dosing time period in order to deliver a respective quantity of laundry care substance to the lye container (105) in the respective delivery process, wherein a maximum quantity of laundry care substance is delivered to the lye container (105) by the control device (123) in one delivery process when the determined quantity of laundry care substance exceeds a maximum threshold value, wherein the determined quantity of laundry care substance and the maximum quantity of laundry care substance are delivered in one further delivery process during the dosing time period The difference between the amounts of substances to be treated is fed to the lye container (105).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017200748.6 | 2017-01-18 | ||
| DE102017200748.6A DE102017200748B4 (en) | 2017-01-18 | 2017-01-18 | Laundry care device with a control |
| PCT/EP2018/050493 WO2018134089A1 (en) | 2017-01-18 | 2018-01-10 | Laundry care appliance comprising a controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110191985A CN110191985A (en) | 2019-08-30 |
| CN110191985B true CN110191985B (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880007446.3A Active CN110191985B (en) | 2017-01-18 | 2018-01-10 | Laundry care appliance with control device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3571343B1 (en) |
| CN (1) | CN110191985B (en) |
| DE (1) | DE102017200748B4 (en) |
| PL (1) | PL3571343T3 (en) |
| WO (1) | WO2018134089A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019005000A1 (en) * | 2019-07-17 | 2021-01-21 | Stefan Schlack | Device for dosing detergent, container for receiving and dosing powder detergent and / or liquid detergent and corresponding system |
| CN111206368B (en) * | 2018-11-02 | 2022-11-04 | 青岛海尔洗衣机有限公司 | Laundry treatment agent dispensing method for washing apparatus |
| DE102019132256A1 (en) * | 2019-11-28 | 2021-06-02 | Miele & Cie. Kg | Washing machine with a device for adding treatment agent |
| WO2022174776A1 (en) * | 2021-02-20 | 2022-08-25 | 青岛海尔洗衣机有限公司 | Control method for additive dispensing apparatus, control module, and additive dispensing apparatus |
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- 2018-01-10 EP EP18700404.9A patent/EP3571343B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102017200748B4 (en) | 2022-02-03 |
| PL3571343T3 (en) | 2021-09-06 |
| DE102017200748A1 (en) | 2018-07-19 |
| CN110191985A (en) | 2019-08-30 |
| WO2018134089A1 (en) | 2018-07-26 |
| EP3571343A1 (en) | 2019-11-27 |
| EP3571343B1 (en) | 2021-03-10 |
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