DE102016203747B3 - Laundry care device with a controller - Google Patents

Abstract

The present invention relates to a laundry care device (100) with a washing tub (105) for receiving washing liquid, with a water supply (111), which is fluidly connected to the tub (105) by a supply line (109), and is formed, the tub (105) supplying fresh water (115), the suds container (105) including a bleed port (117) and an inlet nozzle (119), the bleed port (117) fluidly connected to the inlet nozzle (119) through a conduit (121), wherein in the conduit (121) a lye pump assembly (123) is arranged for pumping washing liquid, wherein the lye pump assembly (123) with a drain hose (125) is fluidly connected and is formed during a pumping out washing liquid through the drain hose (125) of the To wash the laundry care device (100), and with a controller (133) for controlling the water supply (111) and the lye pump assembly (1 23). The controller (133) is configured to activate the water supply (111) during a water supply operation to supply an amount of fresh water (115) to the tub (105). The controller (133) is configured to activate the caustic pump assembly (123) during a pumping operation to pump the supplied amount of fresh water (115) from the tub (105) to a drain level (135) in the drain hose (125), to replace in the drain hose (125) existing washing liquid by fresh water (115).

Description

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

Conventional laundry care devices have a lye pump arrangement which is fluidly connected to a drain hose of the laundry care appliance in order to pump washing liquid out of the laundry care appliance after a washing process. In some conventional laundry care equipment pumping systems are also used to pump washing liquid from the tub by means of the lye pump assembly, and the pumped out washing liquid by means of the suds pump assembly to the tub through the pumping system again to wet the laundry with washing liquid. During the pumping operation, or a normal washing process of the laundry care device, during the first pumping cycle at the beginning of the washing process, spent washing liquid from the previous washing process can flow back out of the drain hose into the tub, which results in a mixing of fresh washing liquid and spent washing liquid the pumping system can come, and whereby the laundry care success can be reduced.

From document DE 199 09 310 A1 is a laundry treatment machine with a tub, a pumping device, a pumping device and a return flow barrier for preventing a fleet backflow from the pumping device in the discharge part of the tub known.

document DE 199 02 911 A1 relates to a front-loadable washing machine with a substantially cylindrical tub, in which a likewise substantially cylindrical drum for receiving laundry is rotatably mounted about an inclined axis, wherein the inclination is formed such that the front equipped with openings of the tub and the Drum higher than the opposite backs are arranged.

It is the object underlying the invention to provide a laundry care device in which an effective laundry care process is made possible with fresh washing liquid.

This object is achieved by an article having the features according to the independent claims. Advantageous embodiments are the subject of the dependent claims.

According to one aspect, the object according to the invention is provided by a laundry care device with a suds container for holding washing liquid, with a water supply which is fluidically connected to the suds container by a supply line, and is adapted to supply fresh water to the suds container, the suds container having a discharge opening and an inlet nozzle comprising, wherein the drain opening is fluidly connected to the inlet nozzle by a conduit, wherein in the line a lye pump arrangement for pumping washing liquid is arranged, wherein the lye pump assembly is fluidly connected to a drain hose and is formed during a pumping out washing liquid through the drain hose from the To pump out a laundry care device, and solved with a controller for controlling the water supply and the lye pump assembly, wherein the controller is adapted to the water supply during a water supply operation to supply a quantity of fresh water to the tub, and wherein the controller is configured to activate the tub pump assembly during a pumping operation to pump the supplied amount of fresh water from the tub to a drain level in the drain hose to be present in the drain hose Replace washing liquid with fresh water.

Thereby, the technical advantage is achieved that is replaced by the supply of fresh water into the tub and the pumping of fresh water supplied into the drain hose, existing in the drain hose, possibly used washing liquid by the supplied fresh water. The drain hose is in fluidic contact with the wash liquor in the tub through the tub pump assembly and through the tubing, whereby any wash fluid present in the drain tubing may, under some circumstances, mix with the wash fluid in the tub. By replacing the existing in the drain hose, spent washing liquid with fresh water, contamination of the laundry with zurückströmender, used, possibly germ-loaded, washing liquid is prevented.

In conventional laundry care devices, a closure system is arranged at the discharge opening of the tub to seal the tub and prevent uncontrolled leakage of washing liquid from the tub. In conventional laundry care equipment with a pumping system, however, it comes during the pumping operation to a thorough mixing of fresh washing liquid with possibly spent washing liquid from the drain hose. Here, in the drain hose remaining and spent washing liquid from the drain hose run back into the sump, wherein the pumping system sucks the spent washing liquid from the sump again and conveys it together with fresh washing liquid into the suds container. By mixing fresh scrubbing liquid with spent scrubbing liquid, which may be germinated, the hygiene of the scrubbing process may be impaired.

Furthermore, the laundry care device may be configured to perform a rinsing process with several successive rinses. During a rinse cycle, the rinsing action can be impaired by the mixing of fresh water supplied from the tub by the water supply with washing liquid from a preceding rinse, which has an increased detergent concentration, and has been pumped out into the drain hose. Replacing the washing liquid present in the drain hose from a previous rinse with fresh water thus ensures an effective dilution of the detergent concentration during the rinsing process.

In this regard, by replacing spent washing liquid with fresh water in the drain hose, the introduction of highly germ-loaded and malodorous spent washing liquid into the laundry to be cleaned is avoided. As a result, a hygiene disadvantage of conventional laundry care equipment can be eliminated with pumping system, which in turn a possible odor impairment of the laundry can be avoided. Furthermore, the water supply may be fluidly connected directly to the tub, or the water supply via the dispenser can be fluidly connected to the tub.

Since the spent washing liquid may possibly contain residues of softener, the seal can also prevent unintentional mixing of softener surfactants with detergent surfactants. The replacement of existing in the drain hose, used washing liquid by fresh water can also be performed in a conventional laundry care without pumping system.

The lye pump arrangement may in particular comprise a first lye pump, in particular a pump, which is fluidly connected to the drain hose to pump out washing liquid through the drain hose from the laundry care apparatus during the pumping operation, and may comprise a second drain pump, in particular a circulation pump, through the conduit the inlet nozzle of the tub is connected to pump during a Umpumpvorgangs washing liquid through the line in the laundry care device. In this case, a further discharge opening can be arranged on the tub in addition to the drain opening to connect the first and second drain pump separately with the tub fluidly. Alternatively, the lye pump assembly may comprise a single leach pump with two different pressure chambers to pump wash fluid out of the laundry care device either through the drain hose during pump down or to pump wash fluid through the line in the laundry machine during the pump cycle.

Under a laundry care device is understood a device which is used for laundry care, such. B. 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 appliance, the activation of the liquor pump arrangement by the controller takes place in order to pump the supplied amount of fresh water to the drainage level in the drain hose, simultaneously or after activating the water supply by the controller.

As a result, the technical advantage is achieved that by the simultaneous activation of water supply and lye pump assembly by the controller, the fresh water supplied can be pumped through the drain pump tube particularly promptly through the lye pump assembly, whereby a small portion of the supplied fresh water is lost, or by activating the After the supply of fresh water by the water supply, the lye pump arrangement can be prevented that the lye pump arrangement to pump the supplied fresh water too fast during the pumping operation and thereby sucks in air.

In a further advantageous embodiment of the laundry care device, the controller is configured to detect a time interval after a pump-down operation, and the controller is configured to activate the water supply and the lye pump arrangement when the detected time interval exceeds a predetermined time interval.

Thereby, the technical advantage is achieved that a replacement of the washing liquid in the drain hose is only performed by fresh water when the pumped out during a pumping operation in the drain hose washing liquid for a predetermined time interval in the Drain hose is. This ensures that the washing liquid pumped down into the drain hose is only replaced by fresh water if the time interval exceeds a predetermined time interval, ie there is the possibility that the germ load of the used washing liquid has reached a level which leads to contamination of the laundry in the Washing drum can lead. As a result, an unnecessary replacement of the pumped washing liquid can be avoided by fresh water, whereby the water and energy consumption of the laundry care device can be reduced.

In a further advantageous embodiment of the laundry care appliance, the controller is designed to control a washing process of the laundry care appliance, wherein the controller is in particular designed to activate the water supply during the water supply process and the liquor pump arrangement during the pumping process before carrying out the washing process.

This achieves the technical advantage that the replacement of spent washing liquid pumped into the drain hose by fresh water is carried out only before an imminent washing of the laundry care appliance, whereby the water and energy consumption of the laundry care appliance can be reduced.

In a further advantageous embodiment of the laundry care device, the fresh water pumped into the drainage hose can be at least partially returned to the line, and the washing process comprises a pumping operation, the drainage pump arrangement being designed to pump washing liquid from the tub into the line and the pumped washing liquid during the pumping process and to pump the fresh water from the line again into the tub.

As a result, the technical advantage is achieved that an effective Umpumpvorgang the laundry care device is not affected by fresh water flowing back from the drain hose into the line. The fact that no spent washing liquid but fresh water from the drain hose flows back into the line, fresh washing liquid can be pumped effectively in the laundry care device without that used washing liquid can contaminate the fresh washing liquid.

In a further advantageous embodiment of the laundry care device, the fresh water pumped into the drain hose is at least partially rückströmbar in the tub, and the washing process includes washing the laundry in a washing drum of the laundry care device with washing liquid and fresh water from the tub, the drain pump assembly is disabled during the washing process ,

Thereby, the technical advantage is achieved that an effective washing process can be performed in the laundry care device. During the washing process, the laundry in the washing drum is washed with fresh washing liquid. Since the fresh washing liquid is not pumped out of the tub during the washing process, the lye pump assembly is disabled. Due to the fluidic connection between the tub and the line, the fresh water pumped into the drain hose flows back through the drain pump assembly and through the line at least partially into the tub. The backflowing fresh water mixes during the washing process with the washing liquid in the tub and does not affect the effectiveness of the laundry.

In a further advantageous embodiment of the laundry care device, the fresh water pumped into the drain hose is at least partially rückströmbar in the tub, and the washing process comprises a rinsing process with several successive rinses, wherein during the successive rinses of the rinsing process, a detergent content of laundry in a washing drum of the laundry care device through the supplied fresh water, and wherein the controller is configured to activate the suds pump assembly during the pumping operation to pump the supplied amount of fresh water from the tub to a drain level in the drain hose to existing in the drain hose pumped washing liquid from a previous rinse to replace with fresh water.

Thereby, the technical advantage is achieved that during the pumping process not only pumped, spent washing liquid from a previous wash cycle, but also washing liquid from a previous rinse cycle of a rinsing process can be effectively replaced. During the rinsing process with several successive rinses, the detergent contained in the washed laundry is diluted by the successive supply of fresh water. By replacing the pumped-out washing liquid from a previous rinse with fresh water prevents washing liquid with an increased detergent concentration from a previous rinse disturbs the dilution of the detergent during the rinsing process, creating a continuous dilution of the Detergent is ensured during the rinsing process.

In a further advantageous embodiment of the laundry care appliance, the line has a first line section between the discharge opening and the lye pump arrangement and a second line section between the lye pump arrangement and the inlet nozzle.

Thereby, the technical advantage is achieved that different fluidic properties of the line sections are made possible by a different configuration of the line sections of the line. Through the first line section between the discharge opening and the lye pump arrangement, washing liquid is pumped during a pump-down operation and during a pump-over process, whereas the second line section between the leach pump arrangement and the inlet nozzle only pumps the washing liquid during a pump-over process.

In a further advantageous embodiment of the laundry care device, the first line section and the second line section have different diameters, the first line section in particular having a larger diameter than the second line section.

As a result, the technical advantage is achieved that particularly advantageous fluidic properties of the line are made possible by the different diameters of the two line sections of the line. As a result of the larger diameter of the first line section compared to the second line section, a larger amount of washing liquid can be conveyed through the first line section in an identical time segment, which can be advantageous in particular during a pumping-down operation.

In a further advantageous embodiment of the laundry care apparatus, the inlet nozzle is arranged on the tub at an inlet level, and the outlet opening is arranged on the tub at a discharge height, wherein the inlet level is greater than the discharge height.

This achieves the technical advantage that washing liquid can be supplied to the suds container through the inlet nozzle in an upper region as a result of the greater inlet height compared to the discharge height, so that the washing liquid can flow through the laundry in the washing drum and through the discharge opening in the lower region of the suds container can be removed again from the tub.

In a further advantageous embodiment of the laundry care device, the drain hose on an outer side of the laundry care device on a drain opening, wherein the drain opening is arranged in a drain height, and wherein the drain height is greater than the inlet level, in particular greater than the drain level.

As a result, the technical advantage is achieved that due to the difference in height without activation of the suds pump arrangement, the washing liquid can not flow out of the laundry care appliance due to the greater drainage opening height compared to the inlet height or the drain level, as a result of which an inadvertent leakage of washing liquid can be prevented.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has a lye container closure, which is arranged at the discharge opening, wherein the lye container closure is designed to prevent a leakage of washing liquid out of the lye container.

As a result, the technical advantage is achieved that an effective sealing element is introduced through the tub container closure, which prevents unwanted leakage of washing liquid from the tub in the line. The lye container closure is arranged at the discharge opening and is designed to prevent washing liquid from being undesired or flowing out of the lye container in an uncontrolled manner and entering the line.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance has an induction bowl for holding detergent, wherein the induction bowl is fluidly connected to the water supply by a water supply line and to the tub by the supply line in order to supply fresh water or washing liquid to the alkaline container.

Thereby, the technical advantage is achieved that can be effectively supplied to the tub by the means of a supply line to the tub and by a water supply line to the water supply connected Einspülschale fresh water or washing liquid.

In a further advantageous embodiment of the laundry care appliance, the dispensing dish has a main washing chamber for receiving detergent, and the dispensing dish has a secondary washing chamber, which is fluidly connected to the water supply by the water supply line in order to supply fresh water through the water Subsequent wash chamber and feed through the supply line to the tub.

As a result, the technical advantage is achieved that can be effectively controlled by the use of at least two different wash chambers in the dispenser bowl whether wash liquid from the main wash chamber or fresh water from the secondary wash chamber can be supplied to the tub. Thus, when the controller activates the water supply during the water supply operation, it is ensured that fresh water is supplied to the suds container through the sub-washing chamber and no washing liquid is supplied through the main washing chamber. The dispenser tray may further include a plurality of main wash chambers for holding a plurality of different detergents.

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, which is fluidly connected to the tub, and adapted to supply fresh water to the tub wherein the tub includes a drain port and an inlet nozzle, the drain port being fluidly connected to the inlet nozzle by a conduit, wherein a tub pump assembly for pumping wash fluid is disposed in the tub, the tub pump assembly fluidly connected to a drain tubing and configured during a draining process, draining wash fluid through the drain hose from the laundry machine, and including a controller for controlling the water supply and the drain pump, the method comprising activating the water jet feeding during a water supply operation to supply a quantity of fresh water to the tub, and activating the tub pump assembly during a pumping operation to pump the supplied amount of fresh water from the tub to a drain level in the drain hose to fresh water present in the drain hose washing liquid to replace.

Thereby, the technical advantage is achieved that an effective washing process, or an effective pumping operation can be ensured in the laundry care device without spent washing liquid from the drain hose can flow back into the line and can contaminate the laundry to be cared for.

In a further advantageous embodiment of the method, the activation of the lye pump arrangement takes place during the pumping operation simultaneously or after the activation of the water supply.

As a result, the technical advantage is achieved that by the simultaneous activation of water supply and lye pump assembly by the controller, the fresh water supplied can be pumped through the lye pump assembly into the drain hose particularly promptly, whereby a small part of the supplied fresh water is lost, or that by the Activating the suds pump assembly after supplying fresh water through the water supply can prevent the suds pump assembly from drawing in air during the pumping operation.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a schematic view of a laundry care device;

2 a schematic view of a pumped circulation system with a tub and with a lye pump assembly; and

3 a schematic representation of a method for pumping washing liquid in a laundry care device;

1 shows a schematic view of a general laundry care device 100 , such as B. a washing machine. The laundry care device 100 includes an induction bowl 101 , in which detergents or other liquid substances can be filled. The laundry care device 100 includes a door 103 for loading the laundry care device 100 with laundry.

2 shows a view of a pumping system in a laundry care device 100 with a tub 105 for holding washing liquid, and with a washing drum 107 for receiving laundry. The laundry care device 100 further comprises an induction bowl 101 for holding detergent or other liquid substances, which with the tub 105 through a supply line 109 fluidly connected. The induction bowl 101 is with a water supply 111 through a water supply pipe 113 fluidly connected to fresh water 115 in the dispenser tray 101 to lead. According to the 2 becomes the supplied fresh water 115 through a chamber of the dispenser tray 101 , in which no detergent is present, passed to the fresh water 115 without detergent to the tub 105 supply. Alternatively, the water supply 111 through the Water supply line 113 also directly with the tub 105 fluidly connected to the fresh water 115 the tub 105 feed directly. Even if this is in 2 not shown, can when introducing fresh water 115 in the dispenser tray 101 the introduced fresh water 115 dissolve the detergent or other liquid substances, causing the formed fresh washing liquid in the tub 105 can be initiated. The induction bowl 101 In particular, a plurality of chambers, in particular a main washing chamber for receiving detergent or other liquid substances, wherein in the Einspülschale 101 introduced fresh water can be supplied in particular by a different to the main wash chamber secondary wash chamber to fresh water 115 without detergent to the tub 105 supply.

The tub 105 has a drain opening 117 and an inlet nozzle 119 on which by a line 121 the Umpumpsystems are fluidly connected, wherein in the line 121 a lye pump arrangement 123 for pumping washing liquid or fresh water 115 from the tub 105 is arranged. The lye pump arrangement 123 can wash fluid through the drain opening 117 from the tub 105 during a in 2 Pumping process not shown in the line 121 pump off and the pumped washing liquid through the line 121 and through the inlet nozzle 119 the tub 105 feed again. As a result, the fresh scrubbing liquid can effectively pass through the conduit during a laundry care process 121 be pumped and the laundry in the washing drum 107 be fed again. As a result, the laundry care success during a laundry care process can be improved.

The lye pump arrangement 123 is also with a drain hose 125 fluidly connected to during a in 2 Not shown pumping spent washing liquid through the drain hose 125 from the laundry care device 100 pump out. The drain hose 125 indicates on an outside of the laundry care device 100 a drain hole 127 on, with the drain opening 127 is arranged in particular in a drainage height, and wherein the drainage height is greater than an inlet height of the inlet nozzle 119 is, whereby an unintentional outflow of washing liquid from the laundry care device 100 through the drain hose 125 can be prevented.

The administration 121 has a first line section 129 on which the lye pump assembly 123 with the discharge opening 117 fluidly connects and has a second line section 131 on which the lye pump assembly 123 with the inlet nozzle 119 fluidly connects.

The lye pump arrangement 123 can a in 2 Have not shown Umpumpstutzen, which with the line 121 , in particular the second line section 131 fluidly connected. The lye pump arrangement 123 can a in 2 having not shown Abpumpstutzen, which with the drain hose 125 fluidly connected. As a result, the lye pump assembly 123 formed either during a Umpumpvorgangs fresh washing liquid through the pumping neck and through the line 121 in the laundry care device 100 to pump over, or spent during an Abpumpvorgangs washing liquid through the pumping nozzle and the drain hose 125 from the laundry care device 100 pump out. In this case, the lye pump arrangement 123 in particular a first drain pump, in particular exhaust pump, and a second, separate drain pump, in particular pump, comprise. Alternatively, the lye pump assembly 123 a single drain pump with two different pressure chambers include to the pumping, -bzw. Umpumpfunktion the liquor pump assembly 123 to ensure.

At the drainage opening 117 of the tub 105 is an in 2 Not shown lye container closure arranged, which is formed, an unintentional outflow of washing liquid, or detergent, from the tub 105 to prevent.

The laundry care device 100 also has a controller 133 which is formed, the suds pump assembly 123 to activate, or is trained, the supply of fresh water 115 by activating the water supply 111 to control. As in 2 shown is the controller 133 in particular, the water supply 111 to activate a lot of fresh water 115 from the water supply 111 through the water supply pipe 113 through the dispenser tray 101 and through the supply line 109 the tub 105 supply.

As in 2 shown is the controller 133 in particular, the drain pump arrangement 123 to activate to the supplied amount of fresh water 115 from the tub 105 through the pipe 121 up to a drain level 135 in the drain hose 125 to pump. Here, the supply of fresh water 115 in the tub 105 and pumping out the fresh water 115 from the tub 105 in the drain hose 125 take place simultaneously. Alternatively, first the fresh water 115 the tub 105 can be supplied and then the supplied fresh water 115 from the tub 105 through the suds pump arrangement 123 in the drain hose 125 be pumped out.

In the drain hose 125 can by a previous Abpumpvorgang the suds pump assembly 123 optionally used washing liquid may be present.

Thus, by pumping out the fresh water 115 from the tub 105 in the drain hose 125 in the drain hose 125 possibly existing, used washing liquid by the supplied fresh water 115 be replaced. Due to the difference in height between the washing liquid level in the tub 105 and the level of the drainage level 135 of fresh water 115 in the drain hose 125 during a deactivation of the lye pump assembly 123 during a wash cycle and during activation of the lye pump assembly 123 be prevented in the context of a pumping process, that in the laundry care device 100 pumped washing liquid through in the drain hose 125 possibly existing used washing liquid is contaminated, since the spent washing liquid by fresh water 115 was replaced. The activation of the controller 133 can be done before the start of any washing program, or it is also possible to reduce water consumption, the activation of the controller 133 to be carried out only if the last wash was done more than 12 hours ago.

The advantage of the invention is to avoid the introduction of heavily contaminated and malodorous spent washing liquid in the laundry to be cared for, creating a hygiene disadvantage of conventional laundry care equipment 100 with pumping systems or conventional laundry care equipment 100 can be avoided without Umpumpsystem. As a result, odor impairments of the laundry can be avoided. In addition, the spent washing liquid may possibly comprise residues of softener, so that an advantage according to the invention is that the mixing of softener surfactants with detergent surfactants can be avoided.

3 shows a sequence of a method for pumping washing liquid in a laundry care device, wherein the laundry care device according to 2 is described.

The procedure 200 includes activation as a method step 201 the water supply 111 during a water supply process to a lot of fresh water 115 the tub 105 to feed and activate 203 the lye pump assembly 123 during a pumping operation to the supplied amount of fresh water 115 from the tub 105 up to a drain level 135 in the drain hose 125 to pump into the drain hose 125 existing washing liquid by fresh water 115 to replace. In this case, the water supply process can take place before or at the same time as the pumping process.

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

feed

111

water supply

113

Water supply line

115

fresh water

117

drain hole

119

inlet nozzle

121

management

123

Lye pump assembly

125

drain hose

127

drain hole

129

First line section

131

Second line section

133

control

135

expiration level

200

Process for pumping washing liquid

201

Process step: Activate the water supply

203

Process step: activating the lye pump arrangement

Claims (15)

Laundry care device ( 100 ) with a tub ( 105 ) for receiving washing liquid, with a water supply ( 111 ), which with the tub ( 105 ) by a supply line ( 109 ) is fluidly connected, and is adapted to the tub ( 105 ) Fresh water ( 115 ), wherein the tub ( 105 ) a drain opening ( 117 ) and an inlet nozzle ( 119 ), wherein the drain opening ( 117 ) with the inlet nozzle ( 119 ) through a line ( 121 ) is fluidly connected, wherein in the line ( 121 ) one Lye pump arrangement ( 123 ) is arranged for pumping washing liquid, wherein the liquor pump arrangement ( 123 ) with a drain hose ( 125 ) is fluidly connected and is formed, during a pumping operation washing liquid through the drain hose ( 125 ) from the laundry care device ( 100 ) and with a controller ( 133 ) for controlling the water supply ( 111 ) and the lye pump arrangement ( 123 ), characterized in that - the controller ( 133 ), the water supply ( 111 ) during a water feed operation to release a quantity of fresh water ( 115 ) the tub ( 105 ), and that - the controller ( 133 ), the lye pump arrangement ( 123 ) during a pumping operation to control the amount of fresh water ( 115 ) from the tub ( 105 ) to a drain level ( 135 ) in the drain hose ( 125 ) to be pumped in the drain hose ( 125 ) existing washing liquid by fresh water ( 115 ) to replace. Laundry care device ( 100 ) according to claim 1, characterized in that the controller ( 133 ), the lye pump arrangement ( 123 ) simultaneously or after activating the water supply ( 111 ) to control the amount of fresh water ( 115 ) to the drain level ( 135 ) in the drain hose ( 125 ) to pump. Laundry care device ( 100 ) according to claim 1 or 2, characterized in that the controller ( 133 ) is adapted to detect a time interval after a pump-down operation, and that the controller ( 133 ), the water supply ( 111 ) and the lye pump arrangement ( 123 ) when the detected time interval exceeds a predetermined time interval. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the controller ( 133 ) is formed, a washing process of the laundry care device ( 100 ), whereby the controller ( 133 ) is in particular designed, before carrying out the washing process, the water supply ( 111 ) during the water supply operation and the lye pump arrangement ( 123 ) during pumping. Laundry care device ( 100 ) according to claim 4, characterized in that in the drain hose ( 125 ) pumped fresh water ( 115 ) at least partially into the line ( 121 ), and that the washing process comprises a pumping process, wherein the lye pump arrangement ( 123 ) is formed, during the pumping process washing liquid from the tub ( 105 ) into the line ( 121 ) and the pumped washing liquid and the fresh water ( 115 ) from the line ( 121 ) again in the tub ( 105 ) to pump. Laundry care device ( 100 ) according to claim 4, characterized in that in the drain hose ( 125 ) pumped fresh water ( 115 ) at least partially into the tub ( 105 ), and that the washing process involves washing the laundry in a washing drum ( 107 ) of the laundry care device ( 100 ) with washing liquid and fresh water ( 115 ) from the tub ( 105 ), wherein the lye pump arrangement ( 123 ) is deactivated during the washing process. Laundry care device ( 100 ) according to claim 4, characterized in that in the drain hose ( 125 ) pumped fresh water ( 115 ) at least partially into the tub ( 105 ), and that the washing process comprises a rinsing process with a plurality of successive rinses, wherein a detergent content of laundry in a washing drum of the laundry care appliance ( 100 ) is reduced by the supplied fresh water, and wherein the controller ( 133 ), the lye pump arrangement ( 123 ) during the pumping process, in order to control the amount of fresh water ( 115 ) from the tub ( 105 ) to a drain level ( 135 ) in the drain hose ( 125 ) to be pumped in the drain hose ( 125 ) existing pumped out washing liquid from a previous rinse with fresh water ( 115 ) to replace. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the line ( 121 ) a first line section ( 129 ) between the discharge opening ( 117 ) and the lye pump arrangement ( 123 ) and a second line section ( 131 ) between the lye pump arrangement ( 123 ) and the inlet nozzle ( 119 ), wherein the first line section ( 129 ) and the second line section ( 131 ) have different diameters, and wherein the first line section ( 129 ) in particular a larger diameter than the second line section ( 131 ) having. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the inlet nozzle ( 119 ) on the tub ( 105 ) is arranged at an inlet height, and that the drain opening ( 117 ) on the tub ( 105 ) is disposed at a drain height, wherein the inlet height is greater than the drain height. Laundry care device ( 100 ) according to claim 9, characterized in that the drain hose ( 125 ) on an outside of the laundry care device ( 100 ) a drain opening ( 127 ), wherein the Drain opening ( 127 ) is arranged at a discharge height, and wherein the discharge height is greater than the inlet level, in particular greater than the discharge level ( 135 ) is. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the laundry care appliance ( 100 ) has a lye container closure, which at the discharge opening ( 117 ) is arranged, wherein the tub container closure is formed, an outflow of washing liquid from the tub ( 105 ) to prevent. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the laundry care appliance ( 100 ) an induction bowl ( 101 ) for receiving detergent, wherein the Einspülschale ( 101 ) through a water supply line ( 113 ) with the water supply ( 111 ) and through the supply line ( 109 ) with the tub ( 105 ) is fluidly connected to fresh water ( 115 ) or washing liquid to the tub ( 105 ). Laundry care device ( 100 ) according to claim 12, characterized in that the Einspülschale ( 101 ) has a main washing chamber for receiving detergent, and that the Einspülschale ( 101 ) has a Nebenwaschkammer which through the water supply line ( 113 ) with the water supply ( 111 ) is fluidly connected to fresh water ( 115 ) through the secondary wash chamber and through the feed line ( 109 ) the tub ( 105 ). Procedure ( 200 ) for pumping washing liquid in a laundry care appliance ( 100 ), wherein the laundry care device ( 100 ) a tub ( 105 ) for receiving washing liquid, a water supply ( 111 ), which with the tub ( 105 ) is fluidly connected, and is adapted to the tub ( 105 ) Fresh water ( 115 ), wherein the tub ( 105 ) a drain opening ( 117 ) and an inlet nozzle ( 119 ), wherein the drain opening ( 117 ) with the inlet nozzle ( 119 ) through a line ( 121 ) is fluidly connected, wherein in the line ( 121 ) a lye pump arrangement ( 123 ) is arranged for pumping washing liquid, wherein the liquor pump arrangement ( 123 ) with a drain hose ( 125 ) is fluidly connected, and is designed, during a pumping operation washing liquid through the drain hose ( 125 ) from the laundry care device ( 100 ) and a controller ( 133 ) for controlling the water supply ( 111 ) and the lye pump arrangement ( 123 ), characterized in that the method ( 200 ) - activating ( 201 ) the water supply ( 111 ) during a water feed operation to remove a quantity of fresh water ( 115 ) the tub ( 105 ), and - activating ( 203 ) of the lye pump arrangement ( 123 ) during a pumping operation to the supplied amount of fresh water ( 115 ) from the tub ( 105 ) to a drain level ( 135 ) in the drain hose ( 125 ) to be pumped in the drain hose ( 125 ) existing washing liquid by fresh water ( 115 ). Procedure ( 200 ) according to claim 14, characterized in that the activation ( 201 ) of the lye pump arrangement ( 123 ) during pumping simultaneously or after activation ( 203 ) the water supply ( 111 ) he follows.

Images