CN107268242B - Clothes care appliance with control device - Google Patents
Clothes care appliance with control device Download PDFInfo
- Publication number
- CN107268242B CN107268242B CN201710212637.0A CN201710212637A CN107268242B CN 107268242 B CN107268242 B CN 107268242B CN 201710212637 A CN201710212637 A CN 201710212637A CN 107268242 B CN107268242 B CN 107268242B
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- Prior art keywords
- pump
- laundry care
- level
- washing liquid
- outflow
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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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/088—Liquid supply arrangements
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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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
- D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit
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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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
Abstract
The invention relates to a clothing care appliance with a control device, comprising a liquid immersion container, a water supply device, an outflow opening, wherein the water supply device is connected to the liquid immersion container via a supply line, the outflow opening is connected to an outflow hose and can be closed by a closure device, and the outflow hose is connected to a liquid immersion pump. The control device is configured to activate the water supply device for a first period of time in order to deliver the washing liquid up to a supply level when the closure device is open. The control device is designed to activate the delivery operation of the immersion liquid pump for a second period of time when the closure device is open in order to pump washing liquid from the immersion liquid container into the outflow hose up to a pump-out level which is higher than the supply level, the washing liquid in the immersion liquid container having a container level which is lower than the pump-out level after being pumped out, the washing liquid in the outflow hose exerting a pressure on the closure device as a result of the higher pump-out level compared to the container level in order to close the outflow opening by means of the closure device.
Description
Technical Field
The invention relates to a laundry care appliance with a control device.
Background
Conventional laundry care appliances have an immersion liquid container with an outflow opening, wherein the outflow opening is fluidically connected to an outflow hose in order to drain washing liquid from the immersion liquid container and to pump the drained washing liquid out of the laundry care appliance within the scope of a pumping-out process. After the pumping-out process, a very low washing liquid level may be present in the outflow hose, as a result of which it is no longer possible to ensure an effective closure of the outflow opening by the closure device of the laundry care appliance. In the case of an ineffective closure of the outflow opening, washing liquid can seep from the immersion liquid container into the outflow hose during the washing phase, which can lead to a loss of laundry care substances available for the laundry care process.
DE 3149666 a1 discloses a washing machine with a detergent flush-in housing which can be supplied with fresh water by a multiple magnet valve via a hose.
GB 1,020,085 a discloses a washing machine having a washing liquid container and a washing drum, wherein the washing liquid container has a discharge opening which is controlled by a discharge valve.
Disclosure of Invention
The invention is based on the object of providing a laundry care appliance with which the loss of laundry care substance during a laundry care process can be reduced.
This object is achieved by the subject matter having the features according to the independent claims. Advantageous embodiments of the invention are the subject matter of the dependent claims, the description and the figures.
According to a first aspect of the invention, this object is achieved by a laundry care appliance having: an immersion liquid container for receiving a washing liquid; a water supply device for supplying washing liquid into the immersion liquid container, wherein the water supply device is fluidically connected to the immersion liquid container via a supply line; an outflow opening arranged on the immersion liquid container for discharging washing liquid, wherein the outflow opening is fluidically connected to an outflow hose and can be closed by a closing device, wherein the outflow hose is connected to an immersion liquid pump; and a control device for controlling the immersion pump and the water supply device, wherein the control device is designed to activate the water supply device in a first time period in order to deliver washing liquid up to a supply level in the outflow hose and in the immersion container when the closure device is opened, and the control device is designed to activate a delivery operation of the immersion pump in a second time period following the first time period when the closure device is opened in order to pump washing liquid from the immersion container into the outflow hose up to a pump-out level, which is higher than the supply level, wherein the washing liquid in the immersion container has a container level after the pump-out, which is lower than the pump-out level, wherein the washing liquid in the outflow hose exerts a pressure on the closure device as a result of a higher pump-out level than the container level In order to close the outflow opening by means of the closing means.
The following technical advantages are thereby achieved: after the washing liquid has been pumped out of the immersion liquid container, a height difference is produced between the container level of the washing liquid in the immersion liquid container and the pumped-out level of the washing liquid in the outflow hose when the closure device is opened. Due to the higher pumped-out level of the washing liquid in the outflow hose compared to the container level, the washing liquid in the outflow hose exerts a pressure on the closure device, whereby the closure device closes the outflow opening.
In conventional laundry care appliances, the immersion liquid container is arranged with an outflow opening, wherein the outflow opening is fluidically connected to an outflow hose and can be closed by a closure device. During the preceding laundry care process, the immersion pump pumps the washing liquid out of the laundry care appliance via the outflow hose in the region of the pumping-out process. In this case, a small amount of washing liquid remains in the outflow hose after the pumping-out process. During the subsequent laundry care process, fresh washing liquid is supplied to the immersion liquid container. However, since the closing means may not completely close the outflow opening in a fluid-technical manner, a portion of the supplied washing liquid and the laundry care substances contained therein may flow via the outflow opening into the outflow hose and thus no longer be available for laundry care during the laundry care process.
In the laundry care appliance according to the invention, a pressure is exerted by the washing liquid in the outflow hose on the closure device as a result of the difference in height between the container level of the washing liquid in the immersion liquid container and the pumped-out level of the washing liquid in the outflow hose, whereby the closure device closes the outflow opening. Due to the higher pump-out level compared to the container level, it can also be ensured during the supply of the washing liquid into the immersion liquid container following the second time period that the outflow opening continues to be effectively fluid-tightly closed by the closure device when the level of the washing liquid in the immersion liquid container rises. This prevents uncontrolled outflow of washing liquid from the immersion liquid container into the outflow hose, so that loss of laundry care substance can be limited.
By means of the laundry care appliance according to the invention, it is possible to limit the loss of laundry care substance during the laundry care process. Thereby, the quality of the laundry care process of the laundry care appliance may be improved, and the energy and resource consumption of the laundry care appliance may be optimized during the laundry care process.
By laundry care appliance is understood an appliance for laundry care, such as a washing machine or a drying machine. Such a laundry care appliance is understood to be, in particular, a household laundry care appliance. I.e. laundry care appliances which are used in the domestic context and which treat a suitable (haushaltueblich) amount of laundry for domestic use.
In an advantageous embodiment of the laundry care appliance, the control device is configured for activating the water supply device during a third time period following the second time period, in order to supply washing liquid to the immersion liquid container up to a washing liquid level with the outflow opening closed by the closure device.
The following technical advantages are thereby achieved: by effectively closing the outflow opening by the closing means, no washing liquid can flow into the outflow hose via the outflow opening during the following laundry care process, in particular during the third time period, and thus no laundry care substance is lost. The supplied washing liquid thus remains in the immersion liquid container, whereby the level of the washing liquid in the immersion liquid container rises until the washing liquid level is reached. When the level of the washing liquid in the liquor container reaches the washing liquid level, the laundry situated in the washing drum is sufficiently wetted with the washing liquid to enable effective laundry care of the laundry during the laundry care process.
In a further advantageous embodiment of the laundry care appliance, the control device is configured for activating the water supply device during the first time period of activity and for activating the delivery operation of the immersion pump during the second time period before a laundry care program is carried out by the laundry care appliance.
The following technical advantages are thereby achieved: due to the higher pumped-out level of the washing liquid in the outflow hose compared to the container level, it is ensured that the closure device effectively closes the outflow opening in a fluid-tight manner. In this case, it can be ensured that no washing liquid escapes from the immersion liquid container into the outflow hose during the execution of the laundry care program in the subsequent laundry care process.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has an immersion housing with a first immersion chamber for receiving laundry care substances and a second immersion chamber for conducting washing liquid, wherein the water supply device is configured for supplying washing liquid to the immersion liquid container via the second immersion chamber during the first time period.
The following technical advantages are thereby achieved: by means of the two rinsing chambers which are flushed into the housing, it can be controlled whether the washing liquid which is supplied to the immersion liquid container via the rinsing chambers contains laundry care substances. If wash liquid, in particular fresh water, is guided through the first rinsing chamber containing the laundry care substance, the wash liquid receives the laundry care substance and is supplied as wash liquor to the liquor container. If wash liquid, in particular fresh water, is guided through the second rinsing chamber which does not contain laundry care substances, the wash liquid is supplied as fresh water to the immersion liquid container.
In a further advantageous embodiment, the laundry care appliance comprises a washing drum for receiving laundry, wherein the washing drum has a drum underside, and wherein a supply level of the washing liquid in the immersion liquid container, which is supplied during the first time period, is arranged below the drum underside.
The following technical advantages are thereby achieved: by arranging the supply level below the lower side of the drum it is ensured that the laundry in the washing drum is not in contact with the washing liquid before the laundry care process starts. It can thereby be ensured that the laundry does not absorb wash liquid during the first period of time. It is thus not necessary to increase the amount of washing liquid supplied and thereby a resource-wasting laundry care process is ensured.
In a further advantageous embodiment of the laundry care appliance, the control device is configured to activate the immersion pump during the second time period over a pump-out time interval at a pump-out speed, wherein the pump-out speed is in particular 3000 rpm to 6000 rpm, and wherein the pump-out time interval is in particular 0.1 seconds to 10 seconds.
The following technical advantages are thereby achieved: by activating the immersion liquid pump during the second time period over a pump-out time interval at a pump-out speed, the washing liquid can advantageously be conveyed from the immersion liquid container into the outflow hose up to the outflow level.
In a further advantageous embodiment of the laundry care appliance, the outflow opening comprises a sealing portion, wherein the sealing portion is configured for fluid-tight closure of the outflow opening closed by the closure device.
The following technical advantages are thereby achieved: the sealing means makes it possible to close the outflow opening particularly effectively in a fluid-tight manner by means of the closure device, whereby no washing liquid can escape through the closed outflow opening.
In a further advantageous embodiment of the laundry care appliance, the closure device comprises a movable flap which is configured for closing the outflow opening after the second period of time.
The following technical advantages are thereby achieved: the movable flap makes it possible to close the outflow opening effectively and in a fluid-tight manner after the second period of time. After a second period of time, the washing liquid in the outflow hose and having a pumped-out liquid level exerts a pressure on the movable flap, as a result of which the movable flap is transferred from the open position for opening the outflow opening into the closed position for closing the outflow opening in order to effectively close the outflow opening.
In a further advantageous embodiment of the laundry care appliance, the closure device comprises a floatable body configured for closing the outflow opening after the second period of time.
The following technical advantages are thereby achieved: the floatable body enables an effective, fluid-tight closure of the outflow opening after the second period of time. After a second period of time, the washing liquid in the outflow hose and having a pumped-out liquid level exerts a pressure on the floatable body, whereby the floatable body is pressed into the outflow opening in order to effectively close the outflow opening.
In a further advantageous embodiment of the laundry care appliance, the outflow hose has an inflow section and a pump-out section, wherein the outflow opening is fluidically connected to the inflow section, wherein the immersion pump is fluidically connected to the inflow section and the pump-out section of the outflow hose, and wherein the pump-out section is fluidically connected to the outlet opening on an outer side of the laundry care appliance.
The following technical advantages are thereby achieved: by connecting the immersion liquid pump to the inflow section and the outflow section of the outflow hose, an effective pumping of the washing immersion liquid out of the immersion liquid container can be ensured. The washing liquor that has been pumped out of the liquor container is pumped out of the laundry care appliance via the outflow opening, via the inflow section of the outflow hose, via the liquor pump, via the pumping-out section of the outflow hose and via the discharge opening.
In a further advantageous embodiment of the laundry care appliance, the outflow opening is arranged on the immersion liquid container at an outflow height and the outlet opening is arranged on an outer side of the laundry care appliance at an outlet height, wherein the supply level and the pump-out level are between the outflow height and the outlet height.
The following technical advantages are thereby achieved: the pump-out level is at a sufficient height above the discharge level. Since the height of the pumped-out level of the washing liquid in the outflow hose is sufficient, an effective pressure of the washing liquid can be exerted on the closure device.
In a further advantageous embodiment of the laundry care appliance, the outflow hose has an opening for ventilating the outflow hose.
The following technical advantages are thereby achieved: an advantageous pressure equalization in the outflow hose is ensured by the opening for venting the outflow hose.
In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has a pressure sensor which is arranged in the immersion liquid container and is configured for sensing the level of the washing liquid in the immersion liquid container, wherein the control device is configured for ending the second time period as soon as the sensed level of the washing liquid corresponds to the container level.
The following technical advantages are thereby achieved: the level of the washing liquid in the immersion liquid container can be effectively sensed by means of a pressure sensor. The control device can thus recognize during the second time period that the second time period has ended and the delivery operation of the immersion pump is deactivated as soon as the washing liquid in the immersion container has reached the container level.
According to a second aspect of the invention, this task is solved by a method for pumping washing liquid in a laundry care appliance, wherein the laundry care appliance has: an immersion liquid container for receiving a washing liquid; a water supply device for supplying washing liquid into the immersion liquid container, wherein the water supply device is fluidically connected to the immersion liquid container via a supply line; an outflow opening arranged on the immersion liquid container for discharging washing liquid, wherein the outflow opening is fluidically connected to an outflow hose and can be closed by a closure device, wherein the outflow hose is connected to an immersion liquid pump; and a control device for controlling the immersion pump and the water supply device, wherein the method comprises: activating the water supply by the control device during a first time period in order to deliver the washing liquid up to a supply level in the outflow hose and in the immersion liquid container when the closure device is open, and activating a delivery operation of the infusion pump by the control device when the closure device is open in a second time period following the first time period, so as to pump washing liquid from the immersion liquid container into the outflow hose up to a pump-out level, which is higher than the supply level, wherein the washing liquid in the immersion liquid container has a container level after being pumped out, the container level being lower than the pump-out level, and wherein the washing liquid in the outflow hose exerts a pressure on the closure device as a result of the higher pump-out level compared to the container level, in order to close the outflow opening by means of the closure device.
The following technical advantages are thereby achieved: an effective pressure is exerted on the closure device due to the higher pump-out level of the washing liquid in the outflow hose compared to the container level. The closing device is thereby advantageously closed, whereby the washing liquid can be prevented from flowing out of the immersion liquid container into the outflow hose.
In a further advantageous embodiment of the method, the method comprises: activating the water supply device by the control device during a third time period following the second time period in order to supply washing liquid to the immersion liquid container up to a washing liquid level in the case of the outflow opening being closed by the closing device.
The following technical advantages are thereby achieved: by supplying the washing liquid up to the washing liquid level in the immersion liquid container, it can be ensured that no washing liquid can flow out of the immersion liquid container during the washing process by closing the outflow opening by the closure device.
Drawings
Other embodiments are explained with reference to the drawings. The figures show:
fig. 1 a schematic view of a laundry care appliance;
FIG. 2 is a schematic view of a laundry care appliance having a dip container connected to an outflow hose;
FIG. 3 is a schematic view of a laundry care appliance having an immersion liquid container connected to an outflow hose and an activated water supply;
FIG. 4 is a schematic view of a laundry care appliance with a dip container and a dip pump connected to an outflow hose and activated;
fig. 5 is a flow chart of a method for pumping wash liquid in a laundry care appliance.
Detailed Description
Fig. 1 shows a schematic view of a generic laundry care appliance 100, for example a washing machine. The laundry care appliance 100 comprises a rinsing housing 101 into which laundry care substances, for example detergents, can be injected. 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 dip container connected to an outflow hose. The laundry care appliance 100 comprises an immersion liquid container 105 for receiving washing liquid and a washing drum 107 arranged in the immersion liquid container 105 for receiving laundry.
Furthermore, the laundry care appliance 100 comprises a water supply device 109 for supplying washing liquid into the immersion liquid container 105, wherein the water supply device 109 is connected with the immersion liquid container 105 by a supply line 111. Furthermore, the laundry care appliance 100 comprises a rinsing housing 101 having a first rinsing chamber 113 for receiving laundry care substances and a second rinsing chamber 115 for guiding washing liquid through the rinsing housing 101. In this case, the water supply 109 is connected to the first rinsing chamber 113 and the immersion liquid container 105 via a further supply line 117.
The immersion liquid container 105 has an outflow opening 119 which is arranged on the underside of the immersion liquid container 105. The outflow opening 119 can be closed by a closure device 121. The closure device 121 may comprise, in particular, a movable flap or a buoyant body for closing the outflow opening 119. The outflow opening 119 is connected to an outflow hose 123, wherein the outflow hose 123 has an inflow section 125 and a pump-out section 127. The outflow opening 119 is connected to an inflow section 125 of an outflow hose 123. A dip pump 129 is arranged between the inflow section 125 and the pump-out section 127 of the outflow hose 123. The pump-out section 127 is connected to a discharge opening 131 on the appliance housing of the laundry care appliance 100. The immersion liquid pump 129 is configured for pumping out the washing liquid 133 from the immersion liquid container 105 via the outflow opening 119 and pumping out the pumped-out washing liquid 133 from the laundry care appliance 100 via the inflow section 125, via the pumping-out section 127 and via the discharge opening 131 when the closure device 121 is opened. Furthermore, the laundry care appliance 100 has a control device 132 for controlling the water supply device 109 and the immersion pump 129.
In fig. 2, the laundry care appliance 100 is shown after the pumping-out process of the aforementioned laundry care process, wherein an amount of washing liquid 133 remains in the outflow hose 123 and flows in the outflow hose 123 up to a starting liquid level 135.
Fig. 3 shows a schematic view of a laundry care appliance with an immersion liquid container connected to an outflow hose and an activated water supply. As depicted in fig. 2, the laundry care appliance 100 comprises an immersion liquid container 105 with an outflow opening 119, a washing drum 107, a water supply device 109, a supply line 111, a further supply line 117, an immersion housing 101 with a first rinsing chamber 113 and a second rinsing chamber 115, a closure device 121, an outflow hose 123 with an inflow section 125 and a pump-out section 127, an outlet opening 131, an immersion liquid pump 129 and a control device 132 for controlling the water supply device 109 and the immersion liquid pump 129.
In the case of the laundry care appliance 100 shown in fig. 3, the water supply device 109 is activated by the control device 132 of the laundry care appliance 100 during the first period of time in order to supply washing liquid 133, in particular fresh water, to the immersion liquid container 101 via the supply line 111 and via the second rinsing chamber 115 of the rinsing housing 101 in the supply flow direction 137. Here, the first rinsing chamber 113 has in particular a certain amount of laundry care substance and the second rinsing chamber 115 has in particular no laundry care substance, so that the supplied washing liquid 133, in particular fresh water, is supplied to the immersion liquid container 105 without laundry care substance, in particular as fresh water.
Because the closure device 121 is open, the supplied washing liquid 133 flows from the immersion liquid container 105 into the outflow hose 123, so that the supply level 139 is regulated in the immersion liquid container 105 and in the outflow hose 123. The supply level 139 is arranged in the immersion liquid container 105 below the drum underside 141 of the washing drum 107, wherein it is ensured that the supplied washing liquid 133 does not wet the laundry present in the washing drum 107. All supplied washing liquid 133 may especially comprise a volume between 1 and 2 liters.
Fig. 4 shows a schematic view of a laundry care appliance with a dip container and a dip pump which is connected to the outflow hose and is activated. As depicted in fig. 2, the laundry care appliance 100 comprises an immersion liquid container 105 with an outflow opening 119, a washing drum 107, a water supply device 109, a supply line 111, a further supply line 117, an immersion housing 101 with a first rinsing chamber 113 and a second rinsing chamber 115, a closure device 121, an outflow hose 123 with an inflow section 125 and a pump-out section 127, an outlet opening 131, an immersion liquid pump 129 and a control device 132 for controlling the water supply device 109 and the immersion liquid pump 129.
In the case of the laundry care appliance 100 shown in fig. 4, the immersion pump 129 is activated by the control device 132 of the laundry care appliance 100 during a second time period following the first time period in order to pump wash liquid 133 from the immersion container 105 into the outflow hose 123 up to a pump-out level 143, which is greater than the supply level 139 shown in fig. 3, when the closure device 121 is opened. Since the closure device 121 is open, the level of the washing liquid 133 in the immersion liquid container 105 during pumping drops down to a container level 145, wherein the container level 145 is lower than the supply level 139 in the immersion liquid container 105 shown in fig. 3. The pumping process by the immersion pump 129 produces a pump-out level 143 in the outflow hose 123 which is higher than a container level 145 of the washing liquid 133 in the immersion container 105.
The washing liquid 133 which has been pumped out in the outflow hose 123 up to the pump-out level 143 exerts a pressure on the closure device 121 in order to close the outflow opening 119 by means of the closure device 121. By closing the outflow opening 119 by the closing device 121: during the subsequent supply of washing liquid 133 during the next washing phase of the article-care appliance 100, the washing liquid 133 flows out of the immersion liquid container 105 into the outflow hose 123. Thereby, a loss of laundry care substance during the following washing phase of the laundry care appliance 100 can be avoided.
The control device 132 can reactivate the water supply device 109 during a third time period following the second time period in order to re-supply the washing liquid 133 in a further supply flow direction 147 to the immersion liquid container 105 with the outflow opening 119 being closed by the closing device 121. Here, the immersion liquid container 105 is supplied with the washing liquid 133 until the washing liquid 133 in the immersion liquid container 105 reaches a washing liquid level 149 which is above the drum underside of the washing drum 107. The washing liquid level 149 above the drum underside of the washing drum 107 ensures that the supplied washing liquid 133 can effectively wet the laundry in the immersion liquid container 105, so that a favorable laundry care effect is ensured.
Fig. 5 shows a flow of a method for pumping washing liquid 133 in a laundry care appliance. The method 200 comprises activating 201 the water supply device 109 during a first time period as a first method step in order to deliver the washing liquid 133 up to a supply level 139 in the outflow hose 123 and in the immersion liquid container 105 when the closure device 121 is open. The method comprises, as a second method step, activating 203 a feed operation of the immersion liquid pump 129 in a second time period following the first time period when the closure device 121 is open in order to pump washing liquid 133 from the immersion liquid container 105 into the outflow hose 123 up to a pump-out level 143, which is higher than the supply level 139, wherein the washing liquid 133 in the immersion liquid container 105, after being pumped out, has a container level 145, which is lower than the pump-out level 143, and wherein the washing liquid 133 in the outflow hose 123 exerts a pressure on the closure device 121 as a result of the higher pump-out level 143 compared to the container level 145 in order to close the outflow opening 119 by means of the closure device 121.
All the features illustrated and shown in connection with the various embodiments of the invention can be provided in the subject-matter according to the invention in different combinations in order to achieve their advantageous effects simultaneously.
The scope of protection of the invention is given by the claims and is not limited to the features explained in the description or shown in the drawings.
List of reference marks
100 laundry care appliance
101 punch-in shell
103 door
105 immersion liquid container
107 washing drum
109 water supply device
111 supply line
113 first flushing cavity
115 second flushing chamber
117 additional supply lines
119 outflow opening
121 closure device
123 outflow hose
125 inflow section
127 pump-out section
129 immersion pump
131 discharge opening
132 control device
133 washing liquid
135 starting level
137 supply flow direction
139 supply level
141 drum underside
143 pump out level
145 container liquid level
147 additional feed flow directions
149 washing liquid level
Claims (16)
1. Laundry care appliance (100) having: an immersion liquid container (105) for receiving a washing liquid (133); a water supply device (109) for supplying a washing liquid (133) into the immersion liquid container (105), wherein the water supply device (109) is fluidically connected to the immersion liquid container (105) via a supply line (111); an outflow opening (119) arranged on the immersion liquid container (105) for discharging washing liquid (133), wherein the outflow opening (119) is fluidically connected to an outflow hose (123) and can be closed by a closing device (121), wherein the outflow hose (123) is connected to an immersion liquid pump (129); and a control device (132) for controlling the immersion pump (129) and the water supply device (109), characterized in that,
the control device (132) is designed to activate the water supply device (109) for a first period of time in order to deliver the washing liquid (133) up to a supply level (139) in the outflow hose (123) and in the immersion liquid container (105) when the closure device (121) is open, and
the control device (132) is designed to activate a delivery operation of the immersion liquid pump (129) in a second time period following the first time period when the closure device (121) is open in order to pump washing liquid (133) from the immersion liquid container (105) into the outflow hose (123) up to a pump-out level (143) which is above the supply level (139), wherein the washing liquid (133) in the immersion liquid container (105) has a container level (145) after being pumped out which is below the pump-out level (143),
wherein the washing liquid (133) in the outflow hose (123) exerts a pressure on the closure device (121) due to a higher pump-out level (143) than the container level (145) in order to close the outflow opening (119) by means of the closure device (121).
2. The laundry care appliance (100) according to claim 1, characterized in that the control device (132) is configured for activating the water supply device (109) during a third time period following the second time period, in order to supply washing liquid (133) to the immersion liquid container (105) up to a washing liquid level (149) with the outflow opening (119) closed by the closing device (121).
3. The laundry care appliance (100) according to claim 1 or 2, characterized in that the control device (132) is configured for activating the water supply device (109) during the first time period and activating the delivery operation of the immersion pump (129) during the second time period before a laundry care program is implemented by the laundry care appliance (100).
4. The laundry care appliance (100) according to claim 1 or 2, characterized in that the laundry care appliance (100) has an rinsing casing (101) with a first rinsing chamber (113) for receiving laundry care substances and a second rinsing chamber (115) for guiding washing liquid (133), wherein the water supply device (109) is configured for supplying washing liquid (133) to the immersion liquid container (105) via the second rinsing chamber (115) during the first time period.
5. The laundry care appliance (100) according to claim 1 or 2, characterized in that the laundry care appliance (100) comprises a washing drum (107) for receiving laundry, wherein the washing drum (107) has a drum underside (141), and wherein a supply level (139) of the supplied washing liquid (133) in the immersion liquid container (105) during the first time period is arranged below the drum underside (141).
6. The laundry care appliance (100) according to claim 1 or 2, characterized in that the control device (132) is configured for activating the immersion pump (129) at a pumping-out speed over a pumping-out time interval during a second time period.
7. The laundry care appliance (100) according to claim 6, characterized in that the pump-out time interval is 0.1 to 10 seconds.
8. Laundry care appliance (100) according to any of claims 1, 2, 7, characterized in that the outflow opening (119) comprises a sealing portion, wherein the sealing portion is configured for fluid-tightly closing the outflow opening (119) closed by the closing means (121).
9. The laundry care appliance (100) according to claim 8, characterized in that the closing means (121) comprises a movable shutter configured for closing the outflow opening (119) after the second period of time.
10. The laundry care appliance (100) according to claim 8, characterized in that the closing means (121) comprises a floatable body configured for closing the outflow opening (119) after the second period of time.
11. Laundry care appliance (100) according to any of claims 1, 2, 7, 9, 10, characterized in that the outflow hose (123) has an inflow section (125) and a pump-out section (127), wherein the outflow opening (119) is fluidically connected to the inflow section (125), wherein the immersion pump (129) is fluidically connected to the inflow section (125) and the pump-out section (127) of the outflow hose (123), and wherein the pump-out section (127) is fluidically connected to a discharge opening (131) on the outside of the laundry care appliance (100).
12. The laundry care appliance (100) according to claim 11, characterized in that the outflow opening (119) is arranged on the immersion liquid container (105) at an outflow height and the drain opening (131) is arranged on an outer side of the laundry care appliance (100) at a drain height, wherein the supply level (139) and the pump-out level (143) are between the outflow height and the drain height.
13. The laundry care appliance (100) according to any of claims 1, 2, 7, 9, 10, 12, characterized in that the outflow hose (123) has an opening for venting the outflow hose (123).
14. The laundry care appliance (100) according to any one of claims 1, 2, 7, 9, 10, 12, characterized in that the laundry care appliance (100) has a pressure sensor arranged in the immersion liquid container (105) and configured for sensing a level of washing liquid (133) in the immersion liquid container (105), wherein the control device (132) is configured for ending the second time period as soon as the sensed level of washing liquid (133) corresponds to the container level (145).
15. Method (200) for pumping washing liquid (133) in a laundry care appliance (100), wherein the laundry care appliance (100) has: an immersion liquid container (105) for receiving a washing liquid (133); a water supply device (109) for supplying a washing liquid (133) into the immersion liquid container (105), wherein the water supply device (109) is fluidically connected to the immersion liquid container (105) via a supply line (111); an outflow opening (119) arranged on the immersion liquid container (105) for discharging washing liquid (133), wherein the outflow opening (119) is fluidically connected to an outflow hose (123) and can be closed by a closing device (121), wherein the outflow hose (123) is connected to an immersion liquid pump (129); and a control device (132) for controlling the immersion pump (129) and the water supply device (109), characterized in that the method (200) comprises
Activating (201) the water supply device (109) by the control device (132) in a first time period in order to deliver the washing liquid (133) up to a supply level (139) in the outflow hose (123) and in the immersion liquid container (105) when the closure device (121) is open, and
activating (203) a delivery operation of the immersion pump (129) by the control device (132) when the closure device (121) is open in a second time period following the first time period, in order to pump washing liquid (133) from the immersion liquid container (105) into the outflow hose (123) up to a pump-out level (143) which is higher than the supply level (139), wherein the washing liquid (133) in the immersion liquid container (105) has a container level (145) after being pumped out, which container level is lower than the pump-out level (143), and wherein the washing liquid (133) in the outflow hose (123) exerts a pressure on the closure device (121) as a result of a higher pump-out level (143) than the container level (145), so as to close said outflow opening (119) by said closing means (121).
16. The method (200) according to claim 15, wherein the method (200) comprises activating (205), by the control device (132), the water supply device (109) during a third time period following the second time period, so as to supply washing liquid (133) to the immersion liquid container (105) up to a washing liquid level (149) with the outflow opening (119) closed by the closing device (121).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016205608.5A DE102016205608B3 (en) | 2016-04-05 | 2016-04-05 | Laundry care device with a controller |
| DE102016205608.5 | 2016-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107268242A CN107268242A (en) | 2017-10-20 |
| CN107268242B true CN107268242B (en) | 2021-01-08 |
Family
ID=58266514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212637.0A Active CN107268242B (en) | 2016-04-05 | 2017-04-01 | Clothes care appliance with control device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3228740A1 (en) |
| CN (1) | CN107268242B (en) |
| DE (1) | DE102016205608B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924043A (en) * | 2018-08-30 | 2020-03-27 | Lg电子株式会社 | Artificial intelligence clothes treating apparatus and control method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020043356A1 (en) * | 2018-08-31 | 2020-03-05 | Arcelik Anonim Sirketi | A washing machine with improved washing performance and the control method of the same |
| DE102019209149A1 (en) * | 2019-06-25 | 2020-12-31 | BSH Hausgeräte GmbH | Laundry care device with a pumping device and a method for operating the laundry care device |
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| DE3822392A1 (en) * | 1987-10-06 | 1989-04-20 | Bosch Siemens Hausgeraete | Washing machine with at least one fresh-water feed conduit |
| EP0318069A1 (en) * | 1987-10-09 | 1989-05-31 | Bauknecht Hausgeräte GmbH | Washing machine with means for avoiding detergent wastage |
| CN103789963A (en) * | 2012-10-30 | 2014-05-14 | 海尔集团技术研发中心 | Water-saving clothes washing control method and device and water-saving washing machine |
| EP2746448A1 (en) * | 2012-12-21 | 2014-06-25 | Electrolux Home Products Corporation N.V. | Improved discharge system for laundry treatment appliance |
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| CH396821A (en) * | 1961-11-15 | 1965-08-15 | Bauknecht Gmbh G | Washing machine |
| DE3149666A1 (en) * | 1981-12-15 | 1983-06-30 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Washing machine with fresh-water inflow |
-
2016
- 2016-04-05 DE DE102016205608.5A patent/DE102016205608B3/en active Active
-
2017
- 2017-03-10 EP EP17160385.5A patent/EP3228740A1/en not_active Withdrawn
- 2017-04-01 CN CN201710212637.0A patent/CN107268242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3602920A1 (en) * | 1986-01-31 | 1987-08-06 | Miele & Cie | Washing machine or washer dryer with a run-off valve |
| DE3822392A1 (en) * | 1987-10-06 | 1989-04-20 | Bosch Siemens Hausgeraete | Washing machine with at least one fresh-water feed conduit |
| EP0318069A1 (en) * | 1987-10-09 | 1989-05-31 | Bauknecht Hausgeräte GmbH | Washing machine with means for avoiding detergent wastage |
| CN103789963A (en) * | 2012-10-30 | 2014-05-14 | 海尔集团技术研发中心 | Water-saving clothes washing control method and device and water-saving washing machine |
| EP2746448A1 (en) * | 2012-12-21 | 2014-06-25 | Electrolux Home Products Corporation N.V. | Improved discharge system for laundry treatment appliance |
| CN104862927A (en) * | 2014-02-26 | 2015-08-26 | 无锡小天鹅股份有限公司 | Upward-drainage washing machine and water level control method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924043A (en) * | 2018-08-30 | 2020-03-27 | Lg电子株式会社 | Artificial intelligence clothes treating apparatus and control method thereof |
| CN110924043B (en) * | 2018-08-30 | 2022-06-28 | Lg电子株式会社 | Artificial intelligence clothes treating apparatus and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3228740A1 (en) | 2017-10-11 |
| DE102016205608B3 (en) | 2017-05-11 |
| CN107268242A (en) | 2017-10-20 |
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