EP3228740A1 - Laundry care appliance with controls - Google Patents

Abstract

The present invention relates to a laundry care device (100) with a washing tub (105) for receiving washing liquid (133), a water supply (109) for supplying washing liquid (133) into the tub (105), wherein the water supply (109) with the Lye container (105) by a supply line (111) is fluidly connected, arranged on the tub (105) drain opening (119) for discharging washing liquid (133), the drain opening (119) fluidly connected to a drain hose (123) and through a closure (121) is closable, wherein the drain hose (123) with a drain pump (129) is connected, and with a controller (132) for controlling the drain pump (129) and the water supply (109). The controller (132) is configured to activate the water supply (109) in a first period of time to wash liquid (133) at an open shutter (121) to a feed level (139) in the drain hose (123) and in the tub ( 105). The controller (132) is configured to activate a conveying operation of the drain pump (129) in an opening period (121) in a second time period adjoining the first time period, to a washing liquid (133) from the tub (105) up to a pumping level (143), which is higher than the supply level (139), to pump into the drain hose (123), wherein the washing liquid (133) in the tub (105) after pumping out a container level (145), which is lower than the pumping level (143), wherein the washing liquid (133) in the drain hose (123) exerts a pressure on the closure (121) by the drainage level (143) in comparison to the tank level (145), around the drain opening (119) through the closure (121) to close.

Description

The present invention relates to a laundry care device with a controller.

Conventional laundry care devices have a tub with a drain opening, wherein the drain opening is fluidly connected to a drain hose to remove washing liquid from the tub and to pump the discharged washing liquid in the context of a Abpumpvorganges from the laundry care device. After the pumping process, a very low level of washing liquid may be present in the drain hose, whereby an effective closing of the drain opening by a closure of the laundry care device can no longer be guaranteed. In the case of a drainage opening which is not effectively closed, washing liquid may penetrate from the tub into the drainage hose during a wash cycle, which may result in a loss of the laundry care substance available for the laundry care process.

In the DE 31 49 666 A1 discloses a washing machine with a detergent dispensing bowl, which can be supplied from a multiple solenoid valve via hoses with fresh water.

In the GB 1,020,085 A a washing machine with a washing liquid container and a washing drum is disclosed, wherein the washing liquid container has an outlet opening which is controlled by an outlet valve.

It is the object underlying the invention to provide a laundry care device in which the loss of Wäschepflegesubstanz can be reduced during a laundry care process.

This object is achieved by articles having the features according to the independent claims. Advantageous embodiments are the subject of the dependent claims, the description and the drawings.

According to one aspect, the object of the invention by a laundry care device with a tub for receiving washing liquid, a water supply for supplying washing liquid into the tub, wherein the water supply is fluidly connected to the tub by a feed line, arranged on the tub outlet opening for discharging Washing liquid, wherein the drain opening fluidly connected to a drain hose and is closable by a closure, wherein the drain hose is connected to a drain pump, and solved with a controller for controlling the drain pump and the water supply, wherein the controller is formed, in a first period of time Activate water supply to carry wash liquid at an open shutter to a feed level in the drain hose and in the tub, wherein the controller is formed in a first Z eitabschnitt subsequent second period of time with an open shutter to activate a conveying operation of the drain pump to pump washing liquid from the tub to a Abpumppegel which is higher than the feed level in the drain hose, wherein the washing liquid in the tub after pumping has a container level , which is lower than the Abpumppegel, and wherein the washing liquid in the drain hose exerts a pressure on the closure by the Abpumppegel compared to the container level to close the drain opening through the closure.

As a result, the technical advantage is achieved that sets after pumping of washing liquid from the tub in an open closure, a height difference between the level of the washing liquid in the container and the Abpumppegel the washing liquid in the drain hose. As a result of the pumping level of the washing liquid in the drain hose, which is higher in comparison to the container level, the washing liquid in the drain hose exerts a pressure on the closure, whereby the closure closes the drain opening.

In conventional laundry care equipment, a tub is arranged with a drain opening, wherein the drain opening is fluidly connected to a drain hose, and can be closed by a closure. During a preceding laundry care operation, the drain pump pumps washing liquid as part of a draining process through the drain hose from the laundry care device. in this connection remains after the pumping a small amount of washing liquid in the drain hose. During a subsequent laundry care process fresh washing liquid is supplied to the tub. However, since the closure can not completely close fluidly the drain opening, a portion of the supplied wash liquid and the laundry care substance contained therein may flow through the drain opening into the drain hose and thereby become unavailable for laundry care during the laundry care operation.

In the laundry care apparatus according to the invention, a pressure is exerted on the closure by the height difference between the container level of the washing liquid in the tub and the pumping level of the washing liquid in the drainage tube of the washing liquid in the drainage tube, thereby closing the drainage opening. By means of the pumping-off level, which is higher in comparison to the container level, it can also be ensured during a feeding of washing liquid into the tub during the second period of time that the drain opening through the closure continues to be effectively closed in a fluid-tight manner when the level of washing liquid in the tub increases. Thereby, an uncontrolled leakage of washing liquid from the tub in the drain hose can be prevented, whereby the loss of Wäschepflegesubstanz can be limited.

By the laundry care device according to the invention, the loss of Wäschepflegesubstanz be limited during a laundry care operation. Thus, the quality of the laundry care operation of the laundry machine can be improved, and the energy and resource consumption of the laundry machine can be optimized during the laundry process.

A laundry care device is understood to mean a device which is used for laundry care, such as a washing machine or a tumble dryer. In particular, such a laundry care appliance is understood as a household laundry care appliance. So a laundry care device, which is used in the context of household management, and is treated with the laundry in normal household quantities.

In an advantageous embodiment of the laundry care apparatus, the controller is designed to activate the water supply during a third time period adjoining the second time period in order to supply washing liquid to the washing tub at the drainage opening closed by the closure up to a washing level.

This achieves the technical advantage that due to the effective closure of the drainage opening through the closure during a subsequent laundry care operation, in particular during the third time period, no washing liquid can flow through the drainage opening into the drainage hose and thus no laundry care substance is lost. Thus, the supplied washing liquid remains in the tub, whereby the level of the washing liquid in the tub increases until the washing level is reached. When the level of the washing liquid in the tub reaches the washing level, the laundry in the washing drum is sufficiently wetted with washing liquid to enable effective laundry care of the laundry during the laundry care operation.

In a further advantageous embodiment of the laundry care device, the controller is configured to activate the supply of water during the first time period, and to activate the delivery operation of the drain pump during the second time period before a laundry care program executed by the laundry care device.

This achieves the technical advantage that it is ensured by the pumping level of the washing liquid in the drain hose, which is higher in comparison to the tank level, that the closure effectively closes the drain opening in a fluid-tight manner. In this case, it can be ensured that during a subsequent laundry care operation during the execution of a laundry care program, no washing liquid escapes from the tub into the drain hose.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has an induction bowl with a first rinsing chamber for receiving laundry care substance and with a second rinsing chamber for conducting laundry Washing liquid, wherein the water supply is adapted to supply washing liquid through the second rinsing chamber to the tub during the first period of time.

As a result, the technical advantage is achieved that can be controlled by the two rinsing chambers of the dispenser, whether the washing liquid supplied to the tub via the dispenser bowl laundry substance contains or not. If the washing liquid, in particular fresh water, passed through the first rinsing chamber, which contains Wäschepflegesubstanz, the washing liquid takes on the Wäschepflegesubstanz and is supplied as a wash liquor to the tub. If the washing liquid, in particular fresh water, passed through the second rinsing chamber, which contains no Wäschepflegesubstanz, the washing liquid is supplied to the tub as fresh water.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a washing drum for receiving laundry, wherein the washing drum has a drum underside, and wherein the feed level of the washing liquid supplied during the first time period is arranged in the tub below the drum base.

Thereby, the technical advantage is achieved that is ensured by the arranged below the drum base feed level that the laundry in the washing drum does not come into contact with the washing liquid before the start of the laundry care operation. This can ensure that the laundry does not absorb any washing liquid during the first time period. Thus, the amount of the supplied washing liquid need not be increased, and it is thus ensured a resource-saving laundry maintenance process.

In a further advantageous embodiment of the laundry care device, the controller is designed to activate the drain pump during the second time period for a Abpumpzeitintervall with a Abpumpgeschwindigkeit, the Abpumpgeschwindigkeit is in particular from 3000 U / min to 6000 U / min, and wherein the Abpumpzeitintervall in particular from 0 , 1 sec to 10 sec.

As a result, the technical advantage is achieved that by activating the drain pump for a Abpumpzeitintervall with a pumping speed during the second period, the washing liquid can be advantageously conveyed from the tub to the drain level in the drain hose.

In a further advantageous embodiment of the laundry care appliance, the drainage opening comprises a seal, wherein the seal is designed to close the drainage opening closed by the closure in a fluid-tight manner.

As a result, the technical advantage is achieved that a particularly effective fluid-tight closure of the drain opening is made possible by the seal through the seal, whereby no washing liquid can escape through the closed drain opening.

In a further advantageous embodiment of the laundry care appliance, the closure comprises a movable flap which is designed to close the drainage opening after the second time period.

As a result, the technical advantage is achieved that an efficient, fluid-tight closure of the drain opening is made possible by the movable flap after the second period. After the second period of time, the washing liquid in the drain hose and having a pump down level exerts pressure on the movable door, thereby transferring the movable door from an open position for releasing the drain opening to a closing position for closing the drain opening to effectively open the drain opening close.

In a further advantageous embodiment of the laundry care appliance, the closure comprises a buoyant body which is designed to close the drainage opening after the second time period.

Thereby, the technical advantage is achieved that an efficient, fluid-tight closing of the drain opening is made possible by the buoyant body after the second period. After the second period of time, the washing liquid in the drain hose and having a pump down level exerts pressure on the washer floatable body, whereby the buoyant body is pressed into the drain hole to effectively close the drain hole.

In a further advantageous embodiment of the laundry care device, the drain hose has an inlet section and a pump-down section, wherein the drain opening is fluidly connected to the inlet section, wherein the drain pump is fluidly connected to the inlet section and the pumping section of the drain tube, and wherein the pumping section with an outlet opening an outside of the laundry care device is fluidly connected.

Thereby, the technical advantage is achieved that can be ensured by connecting the drain pump with the inlet section and the Abpumpabschnitt the drain hose effective pumping of wash liquor from the tub. Wash liquor pumped out of the tub is pumped out of the laundry care appliance through the drain opening, through the inlet section of the drain hose, through the drain pump, through the drainage section of the drain hose and through the outlet opening.

In a further advantageous embodiment of the laundry care device, the drain opening is arranged on the tub in a drainage height, and the outlet opening is arranged on the outside of the laundry care device at an outlet height, wherein the feed level and the pumping level is between the drainage height and the outlet height.

This achieves the technical advantage that the pumping level is sufficiently high above the outlet height. By the sufficient amount of Abpumppegels the washing liquid in the drain hose, an effective pressure of the washing liquid can be exerted on the closure.

In a further advantageous embodiment of the laundry care device, the drain hose has an opening for venting the drain hose.

As a result, the technical advantage is achieved that an advantageous pressure equalization is ensured in the drain hose through the opening for venting the drain hose.

In a further advantageous embodiment of the laundry care device, the laundry care device has a pressure sensor, which is arranged in the tub and is adapted to detect a level of washing liquid in the tub, wherein the controller is configured to terminate the second period of time as soon as the detected level of Washing liquid corresponds to the container level.

As a result, the technical advantage is achieved that an effective detection of a level of washing liquid in the tub is made possible by the pressure sensor. As a result, the controller can recognize during the second period of time, as soon as the washing liquid in the tub has reached the container level and thus terminate the second period of time and deactivate the delivery operation of the drain pump.

According to a second aspect of the invention, the object is achieved by a method for pumping washing liquid in a laundry care device, wherein the laundry care device a tub for receiving washing liquid, a water supply for supplying washing liquid into the tub, the water supply to the tub by a supply line fluidically connected, arranged on the tub outlet opening for discharging washing liquid, wherein the drain opening fluidly connected to a drain hose and is closable by a closure, wherein the drain hose is connected to a drain pump, and has a control for controlling the drain pump and the water supply wherein the method of activating the water supply by the controller in a first period of time to wash liquid at an open shutter to a feed level in the drain hose and in the Laugenbe and to activate a delivery operation of the suds pump by the controller at an open shutter in a second time period subsequent to the first time period to the washing liquid from the tub to a Abpumppegel which is higher than the feed level in the drain hose to pumping, wherein the washing liquid in the tub after pumping out has a tank level which is lower than the Abpumppegel, and wherein the washing liquid in the drain hose exerts a pressure on the closure to close the drain opening by the closure, by the pumping level higher than the tank level.

This achieves the technical advantage that an effective pressure is exerted on the closure in the drain hose due to the higher pumping level of the washing liquid in comparison with the container level. As a result, the closure is advantageously closed, whereby leakage of washing liquid from the tub in the drain hose can be prevented.

In a further advantageous embodiment of the method, the method comprises activating the water supply during a third period of time adjoining the second period of time by the control in order to supply washing liquid to the tub to a washing level at the drain opening closed by the closure.

Thereby, the technical advantage is achieved that can be ensured by supplying the washing liquid up to the washing level in the tub, that no washing liquid can flow out of the tub during a washing process by the closed by the shutter drain opening.

Fig. 1

eine schematische Ansicht eines Wäschepflegegeräts;

Fig. 2

eine schematische Ansicht eines Wäschepflegegeräts mit einem mit einem Ablaufschlauch verbundenen Laugenbehälter;

Fig. 3

eine schematische Ansicht eines Wäschepflegegeräts mit einem mit einem Ablaufschlauch verbundenen Laugenbehälter und einer aktivierten Wasserzufuhr;

Fig. 4

eine schematische Ansicht eines Wäschepflegegeräts mit einem Laugenbehälter und mit einer mit einem Ablaufschlauch verbundenen und aktivierten Laugenpumpe; und

Fig. 5

einen Ablauf eines Verfahrens zum Pumpen von Waschflüssigkeit in einem Wäschepflegegerät.

Further embodiments will be explained with reference to the accompanying drawings. Show it:

Fig. 1

a schematic view of a laundry care device;

Fig. 2

a schematic view of a laundry care device with a tub connected to a drain tub;

Fig. 3

a schematic view of a laundry care device with a drain hose connected to a tub and an activated water supply;

Fig. 4

a schematic view of a laundry care device with a tub and with a connected to a drain hose and activated drain pump; and

Fig. 5

a sequence of a method for pumping washing liquid in a laundry care device.

Fig. 1 shows a schematic view of a general laundry care device 100, such as a washing machine. The laundry care appliance 100 comprises an induction bowl 101, into which wash-care substance, such as, for example, detergent, can be filled. 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 device with a tub connected to a drain hose. The laundry care device 100 comprises a suds container 105 for holding washing liquid and a washing drum 107 arranged in the suds container 105 for receiving laundry.

The laundry care apparatus 100 further comprises a water supply 109 for supplying washing liquid into the tub 105, wherein the water supply 109 is connected by a supply line 111 to the tub 105. The laundry care device 100 further comprises an induction bowl 101 with a first rinsing chamber 113 for receiving Wäschepflegesubstanz and with a second rinsing chamber 115 for conducting washing liquid through the dispenser 101. Here, the water supply 109 through a further supply line 117 with the first rinse chamber 113 and the tub 105 connected.

The tub 105 has a drain opening 119, which is arranged on an underside of the tub 105. The drain opening 119 can be closed by a closure 121. In particular, the closure 121 may comprise a movable flap or buoyant body for closing the drain opening 119. The drain opening 119 is connected to a drain hose 123, wherein the drain hose 123 has an inlet section 125 and a pump-down section 127. The drain opening 119 is connected to the inlet section 125 of the drain hose 123 connected. Between the inlet section 125 and the pumping section 127 of the drain hose 123, a drain pump 129 is arranged to. The pumping-out section 127 is connected to an outlet port 131 on a device housing of the laundry-care device 100. The suds pump 129 is designed to pump washing liquid 133 out of the suds container 105 through the discharge opening 119 with an open closure 121 and to pump the pumped washing liquid 133 out of the laundry care appliance 100 through the feed section 125, through the pumping section 127 and through the outlet opening 131. The laundry care apparatus 100 further has a controller 132 for controlling the water supply 109 and the drain pump 129.

In the Fig. 2 For example, the laundry-care apparatus 100 is shown after a pumping-off operation of a preceding laundry-care operation with an amount of washing liquid 133 remaining in the drain hose 123 and flowing up to an initial level 135 in the drain hose 123.

Fig. 3 shows a schematic view of a laundry care device with a drain hose connected to a tub and an activated water supply. The laundry care device 100 comprises as in Fig. 2 described a tub 105 with a drain opening 119, a washing drum 107, a water supply 109, a supply 111, a further supply 117, a Einspülschale 101 with a first flushing chamber 113 and a second flushing chamber 115, a closure 121, a drain hose 123 with an inlet section 125 and a pump-out section 127, an outlet port 131, a drain pump 129, and a controller 132 for controlling the water supply 109 and the drain pump 129.

At the in Fig. 3 1, the water supply 109 is activated by the controller 132 of the laundry care device 100 during a first period of time in order to supply washing liquid 133, in particular fresh water, through the supply line 111 and through the second rinsing chamber 115 to the rinsing container 101 in a supply flow direction 137. In this case, the first rinsing chamber 113 in particular has a quantity of laundry-care substance and, in particular, the second rinsing chamber 115 has no laundry-care substance, so that the supplied washing liquid 133, in particular fresh water, without Wäschepflegesubstanz the liquor tank 105 is supplied in particular as fresh water.

Since the shutter 121 is opened, the supplied washing liquid 133 flows from the tub 105 into the drain hose 123, so that a supply level 139 is set in the tub 105 and in the drain hose 123. The feed level 139 is disposed in the tub 105 below a drum bottom 141 of the washing drum 107, thereby ensuring that the supplied washing liquid 133 in the washing drum 107 does not wet existing laundry. The total supplied washing liquid 133 may in particular comprise a volume between 1 liter and 2 liters.

Fig. 4 shows a schematic view of a laundry care device with a tub and with a connected to a drain hose and activated drain pump. The laundry care device 100 comprises as in Fig. 2 described a tub 105 with a drain opening 119, a washing drum 107, a water supply 109, a supply 111, a further supply 117, a Einspülschale 101 with a first flushing chamber 113 and a second flushing chamber 115, a closure 121, a drain hose 123 with an inlet section 125 and a pump-out section 127, an outlet port 131, a drain pump 129, and a controller 132 for controlling the water supply 109 and the drain pump 129.

At the in Fig. 4 1, the drain pump 129 is activated by the controller 132 of the laundry care device 100 during a second period of time adjoining the first time section in order to wash liquid 133 with an open closure 121 from the tub 105 to a pumping level 143 which is greater than that in FIG Fig. 3 shown feed level 139 is to pump into the drain hose 123. Since the shutter 121 is opened, during the pumping down, the level of washing liquid 133 in the tub 105 drops to a tank level 145, the tank level 145 being lower than that in FIG Fig. 3 shown feed level 139 is located in the tub 105. As a result of the pumping process of the drain pump 129, a pumping level 143 in the drain hose 123 sets, which is higher than the tank level 145 of the washing liquid 133 in the tub 105.

The washing liquid 133 pumped down to the pumping level 143 in the drain hose 123 exerts pressure on the shutter 121 to close the drain hole 119 through the shutter 121. By closing the drainage opening 119 through the closure 121, it is possible to prevent washing liquid 133 from flowing out of the tub 105 into the drainage hose 123 during the subsequent feeding of washing liquid 133 during a subsequent washing cycle of the laundry care appliance 100. Thereby, a loss of Wäschepflegesubstanz be avoided during a subsequent wash cycle of the laundry care device 100.

The controller 132 may again activate the water supply 109 during a third time period subsequent to the second time period in order to feed washing liquid 133 again to the suds container 105 in a further supply flow direction 147 when the discharge opening 119 is closed by the closure 121. Here, washing liquid 133 is supplied to the tub 105 until the washing liquid 133 in the tub 105 reaches a washing level 149 which is above the drum bottom 141 of the washing drum 107. The washing level 149 located above the drum bottom 141 of the washing drum 107 ensures that the supplied washing liquid 133 can effectively wet the laundry in the tub 105 to ensure advantageous laundry care success.

Fig. 5 shows a flow of a method for pumping washing liquid 133 in a laundry care device. The method 200 comprises, as a first method step, the activation 201 of the water supply 109 in a first time period in order to convey washing liquid 133 with an open closure 121 up to a feed level 139 in the drainage hose 123 and in the tub 105. The method comprises, as a second method step, activating 203 a conveying operation of the drain pump 129 with an open shutter 121 in a second time period adjoining the first time period, washing liquid 133 from the tub 105 to a pumping level 143 which is higher than the feed level 139 to pump into the drain hose 123, wherein the washing liquid 133 in the tub 105 after pumping out a container level 145 which is lower than the Abpumppegel 143, and wherein the washing liquid 133 in the drain hose 123 by the pumping level 143, which is higher than that of the container level 145, exerts a pressure on the closure 121 in order to close the discharge opening 119 through the closure 121.

All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects.

The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures.

LIST OF REFERENCE NUMBERS

100

Laundry care device

101

dispenser tray

103

door

105

tub

107

washing drum

109

water supply

111

feed

113

First rinsing chamber

115

Second rinsing chamber

117

Further supply line

119

drain hole

121

shutter

123

drain hose

125

inlet section

127

Abpumpabschnitt

129

Drain pump

131

outlet

132

control

133

washing liquid

135

initial level

137

Supply flow direction

139

Zuführpegel

141

Drum base

143

Abpumppegel

145

tank level

147

Further feed flow direction

149

wash level

Claims (15)

A laundry care device (100) with a washing tub (105) for receiving washing liquid (133), a water supply (109) for supplying washing liquid (133) into the washing tub (105), wherein the water supply (109) with the tub (105) through a feed line (111) is fluidly connected to a drain opening (119) arranged on the tub (105) for discharging washing liquid (133), wherein the drain opening (119) is fluidly connected to a drain hose (123) and connected by a closure (121) is closable, wherein the drain hose (123) is connected to a drain pump (129), and with a controller (132) for controlling the drain pump (129) and the water supply (109), characterized in that
the controller (132) is adapted to activate the water supply (109) in a first time period to wash liquid (133) at an open shutter (121) to a feed level (139) in the drain hose (123) and in the tub ( 105) and that
the controller (132) is adapted to activate a conveying operation of the drain pump (129) in an opening period (121) adjacent to the first time section, to activate washing liquid (133) from the tub (105) up to a pumping level (143), which is higher than the supply level (139), to pump into the drain hose (123), wherein the washing liquid (133) in the tub (105) after pumping out a container level (145), which is lower than the pumping level (143), wherein the washing liquid (133) in the drain hose (123) exerts a pressure on the closure (121) by the drainage level (143) in comparison to the tank level (145), around the drain opening (119) through the closure (121) to close. A laundry care device (100) according to claim 1, characterized in that the controller (132) is adapted to activate the water supply (109) during a third time period subsequent to the second time period in order to close the discharge opening (12) closed by the closure (121). 119) To supply washing liquid (133) to the washing tub (105) to a washing level (149). A laundry care appliance (100) according to claim 1 or 2, characterized in that the controller (132) is adapted to activate the water supply (109) during the first time period and to activate the delivery operation of the drain pump (129) during the second time period to carry out the laundry care program carried out by the laundry care appliance (100). Laundry care appliance (100) according to one of the preceding claims, characterized in that the laundry care appliance (100) has an induction bowl (101) with a first rinsing chamber (113) for receiving laundry care substance and with a second rinsing chamber (115) for passing washing liquid (133). wherein the water supply (109) is designed to supply washing liquid (133) through the second rinsing chamber (115) to the suds container (105) during the first period of time. A laundry care appliance (100) according to any one of the preceding claims, characterized in that the laundry care appliance (100) comprises a washing drum (107) for receiving laundry, the washing drum (107) having a drum bottom (141), and wherein the feed level (139) the washing liquid (133) supplied during the first period of time is disposed in the tub (105) below the drum bottom (141). The laundry care device (100) according to any one of the preceding claims, characterized in that the controller (132) is adapted to activate the drain pump (129) during the second time period for a Abpumpzeitintervall with a Abpumpgeschwindigkeit, the Abpumpgeschwindigkeit in particular from 3000 U / min to 6000 U / min, and wherein the Abpumpzeitintervall is in particular from 0.1 sec to 10 sec. Laundry care appliance (100) according to one of the preceding claims, characterized in that the drainage opening (119) comprises a seal, wherein the Seal is formed to close the closed by the closure (121) drain port (119) fluid-tight. A laundry care appliance (100) according to any one of the preceding claims, characterized in that the closure (121) comprises a movable flap which is adapted to close the drainage opening (119) after the second period of time. A laundry care appliance (100) according to any one of claims 1 to 7, characterized in that the closure (121) comprises a buoyant body which is adapted to close the drainage opening (119) after the second period of time. The laundry care device (100) according to one of the preceding claims, characterized in that the drain hose (123) has an inlet section (125) and a pump-down section (127), wherein the drain opening (119) is fluidly connected to the inlet section (125), wherein the Lye pump (129) with the inlet section (125) and the Abpumpabschnitt (127) of the drain hose (123) is fluidly connected, and wherein the Abpumpabschnitt (127) with an outlet opening (131) on an outside of the laundry care device (100) is fluidly connected. The laundry care appliance (100) according to claim 10, characterized in that the drainage opening (119) on the tub (105) is arranged at a drainage height, and that the outlet opening (131) is arranged on the outside of the laundry care appliance (100) at an outlet height, wherein the feed level (139) and the pump down level (143) is between the drain level and the outlet level. Laundry care appliance (100) according to one of the preceding claims, characterized in that the drain hose (123) has an opening for venting the drain hose (123). Laundry care appliance (100) according to one of the preceding claims, characterized in that the laundry care appliance (100) has a pressure sensor, which is arranged in the tub (105) and adapted to detect a level of washing liquid (133) in the tub (105), wherein the controller (132) is adapted to terminate the second period of time as soon as the detected level of washing liquid ( 133) corresponds to the container level (145). Method (200) for pumping washing liquid (133) in a laundry care appliance (100), wherein the laundry care appliance (100) comprises a washing container (105) for receiving washing liquid (133), a water supply (109) for feeding washing liquid (133) into the suds container (105), wherein the water supply (109) is fluidly connected to the suds container (105) by a supply line (111), a discharge opening (119) arranged on the suds container (105) for discharging washing liquid (133) Drain opening (119) with a drain hose (123) fluidly connected and by a closure (121) is closable, wherein the drain hose (123) with a drain pump (129) is connected, and a controller (132) for controlling the drain pump (129) and the water supply (109), characterized in that the method (200)
activating (201) the water supply (109) by the controller (132) in a first time period to wash liquid (133) at an open shutter (121) to a feed level (139) in the drain hose (123) and in the tub (105), and
activating (203) a conveying operation of the suds pump (129) by the controller (132) with an open shutter (121) in a second time period subsequent to the first time period, washing liquid (133) from the tub (105) to a Pumping level (143), which is higher than the feed level (139) to pump into the drain hose (123), wherein the washing liquid (133) in the tub (105) after pumping, a container level (145) which is lower than that Abpumppegel (143), and wherein the washing liquid (133) in the drain hose (123) by the in comparison to the container level (145) higher Abpumppegel (143) exerts pressure on the closure (121) to the drain opening (119) through closing the closure (121). Method (200) according to claim 14, characterized in that the method (200), activating (205) the water supply (109) during a third time period adjoining the second time period by the controller (132) in order to wash liquid (133) at the drain opening (119) closed by the closure (121) to the tub (105 ) to a washing level (149).

Images