DE102014217121A1 - Laundry care device with a feeder - Google Patents

Abstract

The present invention relates to a laundry care device (100) for the care of laundry (123), wherein the laundry care device (100) comprises a suds container (103) for receiving suds (121), a rotatably mounted wash basket (105) for receiving laundry (123). a drive (107) for driving the washing drum (105), a drain pump (109) for pumping washing liquor (121) out of the tub (103), a feeding device (111) for feeding washing liquor (121) out of the tub (103 ) in the washing drum (105), and heat generating means (113) for heating washing liquor (121) guided by the feeding means (111). The drain pump (109) is designed to pump out a first amount of wash liquor (121) from the tub (103) in a first period of time. The drive (107) is configured to drive the wash drum (105) at a spin frequency in a second period subsequent to the first time period to spin a second amount of wash liquor (121) from the wash (123) in the wash drum (105) and the tub (103) to supply. The feed device (111) is designed to feed the second quantity of wash liquor (121) from the tub (103) to the interior of the wash drum (105) in a third period following the second time period in order to feed the wash (123) in the wash drum (105). The heat generating means (113) is configured to heat the second amount of washing liquor (121) fed by the supply means (111) to a predetermined temperature in the third period, the heat generating means (113) being integrated into the feeding means (111). The drive (107) is configured to drive the washing drum (105) at a rotational frequency in the third period to distribute the second quantity of washing liquor (121) in the laundry (123) located in the washing drum (105).

Description

The present invention relates to a laundry care device having a feeding device for feeding washing liquor from the tub into the washing drum.

A laundry care process in a laundry care appliance, such as e.g. A washing machine normally comprises a washing phase and a spinning phase with several centrifuging operations following the washing phase. During the washing phase, soiled laundry, which is located in the rotatably mounted washing drum, is mixed with washing liquor in order to clean the laundry. During a spin operation of the spin phase, the wash drum is rotated at a high spin frequency. Characterized washing liquor from the laundry in the washing drum is pressed due to the centrifugal force through drainage holes in the washing drum in a space between the washing drum and tub. The liberated so washing liquor can be absorbed in the tub of the washing machine.

The spin phase may include several spin events that are performed to remove the largest possible amount of wash liquor from the wash. As a result, a drying of the laundry in the washing drum of the laundry care device is achieved and it is prevented that the laundry must be taken to dripping wet after completion of the washing process. Therefore, it is advantageous if the residual moisture still present in the laundry after the spin phase is as low as possible. This is accomplished by spinning the laundry in the washing drum in a final spin cycle with a high spin frequency to remove a large amount of wash liquor from the laundry. However, in conventional centrifuging processes, a relatively high residual moisture content remains in the laundry even after the final spinning process of the spinning phase. In addition, relatively large amounts of water and energy are consumed in conventional centrifuging.

It is the object underlying the invention to provide a laundry care device in which the cleaned laundry has a low residual moisture after the spin phase.

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

According to one aspect of the invention, the object is achieved by a laundry care device for maintaining laundry, wherein the laundry care device comprises a suds container for holding washing liquor, a rotatably mounted washing drum for receiving laundry, a drive for driving the washing drum, a suds pump for pumping off suds the suds container, a supply device for feeding suds from the suds container into the squeeze drum, and a heat generator for heating suds passed through the sorter, the sump pump being configured to pump a first amount of suds from the suds in a first period of time; wherein the drive is adapted to drive the washing drum at a spin frequency in a second period subsequent to the first time period to free spin a second amount of wash liquor from the laundry in the washing tub and to add it to the tub lead, wherein the feeding device is adapted to supply the second amount of wash liquor from the tub to the interior of the washing drum in a third period subsequent to the second period to wet the laundry in the washing drum, wherein the heat generating means is formed in the third Period to heat the second amount of wash liquor fed by the feeder to a predetermined temperature, wherein the heat generating means is integrated into the feeder and wherein the drive is adapted to drive the wash drum at a rotational frequency in the third period to the second amount of wash liquor distribute the laundry in the washing drum.

Thereby, the technical advantage is achieved that an effective heat transfer from the wash liquor to the laundry is achieved by the supply of heated wash liquor to the laundry in the washing drum by the feeder. As a result, an effective reduction of the residual moisture content of laundry after completion of the spin phase is achieved and the water and energy consumption during the spin phase can be reduced. During the feeding of washing liquor into the washing drum in the third period, the washing drum is rotated at a low rotational frequency. As a result, the laundry is subjected to less mechanical stress than is the case with a conventional spinning process with a high spin frequency. In addition, the heating of the wash liquor by the heat generating device effectively kills germs in the wash liquor, thereby reducing the health burden on the wearer of the wash.

In a first period, the drain pump pumps the first amount of wash from the Leach container to remove after the washing phase in the tub remaining wash from the laundry care device. This ensures that only the second amount of wash liquor, which is bonded to the laundry in the washing drum, the washing drum is supplied in a subsequent step. In a second period subsequent to the first period, the drive drives the washing drum to spin the second quantity of wash liquor bound to the laundry, which is received in the tub. During the subsequent third period, the second amount of wash liquor is supplied from the tub to the interior of the wash tub by the feeder to sufficiently wet the laundry in the wash tub.

During the supply of wash liquor to the interior of the wash basket, the wash liquor in the feeder is heated by the heat generator to a predetermined temperature to ensure that heated wash liquor is supplied to the wash tub. The heat generating means is integrated with the feeder, and may comprise, for example, a heating element mounted outside a feeder line of the feeder. By integrating the heat generating device in the feeder can be ensured that the wash liquor is heated to the predetermined temperature immediately before feeding into the washing drum. When the heated wash liquor is fed to the wash tub, the laundry in the wash tub heats up. During the supply of the heated second quantity of washing liquor, the drive drives the washing drum at a rotational frequency in order to distribute the washing liquor in the laundry located in the washing drum.

The heating of the laundry leads to a reduced water retention capacity of the laundry. Particularly advantageous is a heating of the laundry to the predetermined temperature between 40 ° C and 95 ° C prove, the exact selection of the predetermined temperature of the amount of laundry or the type of laundry in the washing drum depends. As a result, an effective transfer of heat from the wash liquor is achieved on the laundry in the washing drum and after completion of the spin phase laundry can be removed from the washing drum, which has a low residual moisture.

In an advantageous embodiment of the laundry care device, the rotational frequency is lower than the spin frequency.

Thereby, the technical advantage is achieved that an effective transfer of heat from the wash to the laundry is achieved by the low rotational frequency of the washing drum during the supply of heated wash liquor to the laundry located in the washing drum. As a result, the residual moisture of the laundry is reduced after the spin phase.

During the spin phase, the laundry in the washing drum is spun at a high spin frequency to spin off a large amount of wash liquor from the laundry within a short time, which is taken up in the tub. Due to the lower rotational frequency of the washing drum during the supply of washing liquor compared to the centrifugal frequency, it is prevented that the supplied washing liquor is immediately thrown free. Rather, it is achieved by the low rotational frequency of the washing drum that the supplied warm wash liquor can be effectively distributed in the washing drum and thus can wet all areas of the laundry. This results in an effective transfer of heat from the heated wash to the laundry.

An advantageous rotational frequency is in a range between 2 revolutions per minute and 100 revolutions per minute, preferably in a range between 5 revolutions per minute and 50 revolutions per minute. By supplying washing liquor during rotation of the washing drum at a low rotational frequency, effective heat transfer from the wash liquor to the laundry during the spin phase is ensured. This leaves after completion of the spin phase only a small residual moisture in the laundry.

In a further advantageous embodiment of the laundry care appliance, the supply device comprises a supply line and a nozzle, wherein the drain pump is designed to supply the second quantity of wash liquor from the tub through the supply line to the nozzle, and wherein the nozzle is arranged in the wash drum.

Thereby, the technical advantage is achieved that an advantageous distribution of heated wash liquor in the laundry in the washing drum is achieved by the arrangement of the nozzle in the washing drum and the supply of wash liquor through the supply line into the washing drum. The nozzle comprises a Waschlaugenauslassöffnung which is directed to an inner drum wall of the washing drum, whereby the laundry can be sprayed specifically in the washing drum.

The nozzle can be located in the cuff of the washing machine. The Waschlaugenauslassöffnung the nozzle can be designed multi-channel or it can be a fluidically optimized Nozzle can be used. The wash liquor sprayed on the laundry can be accelerated on a laundry ring applied to the drum inner wall and driven through the laundry by the centrifugal forces acting on the water. In this case, there is an effective heat transfer from the wash to the laundry, whereby the retention force for the water in the laundry can be efficiently reduced. As a result, the residual moisture of the laundry can be effectively reduced after completion of the spin phase.

In a further advantageous embodiment of the laundry care device, the drain pump is connected by a first portion of the supply line to a drain opening of the tub.

As a result, the technical advantage is achieved that the second amount of wash liquor can be effectively pumped out of the tub by the drain pump and fed directly through the feed line of the wash drum. The drain pump can be designed so that it can detect by reducing the flow rate or by pumping off an air-wash liquor mixture when the amount of wash in the tub is too low to be fed to the wash drum can. In this case, the drain pump can stop the pumping of wash liquor from the tub. Thus, by the arrangement of the drain pump in the feeder, an effective pumping out of the wash liquor from the tub and a direct supply of the wash liquor into the washing drum allows. This achieves effective heat transfer from the warm wash to the laundry in the wash drum.

In a further advantageous embodiment of the laundry care device, the supply line comprises a three-way valve which is connected to the drain pump through a second portion of the feed line which is connected to the nozzle by a third portion of the feed line, wherein the laundry care device a waste water discharge for discharging wash liquor from the Laundry care device comprises, and wherein the three-way valve is configured to supply the second amount of wash liquor through the third portion of the feed line of the nozzle in a first valve setting, and to divert the second amount of wash liquor through the waste water discharge from the laundry care device in a second valve setting.

Thereby, the technical advantage is achieved that the supply of heated wash liquor can be terminated in the washing drum by the three-way valve when a sufficient amount of heat has been transferred from the wash to the laundry in the washing drum. If a sufficient amount of heat has been transferred, the valve setting of the three-way valve can be changed. The three-way valve is controlled to such that the pumped out of the tub washing liquor is no longer guided through the third section of the supply line into the washing drum, but is derived by the waste water discharge from the laundry care device.

The three-way valve may be electrical, e.g. be controlled by a control device of the laundry care device. In the first valve setting, the drain pump pumps the second amount of wash liquor from the tub through the first, second and third sections of the supply line to the nozzle to deliver the wash liquor to the wash tub. In the second valve setting, the three-way valve directs the second quantity of wash liquor pumped out of the tub by the drain pump through the waste water drainage from the laundry care appliance. Thus, by the use of the three-way valve, an effective control of the heat transfer from the wash liquor to the laundry in the washing drum is possible to sufficiently reduce the residual moisture of the laundry after completion of the spin phase.

In a further advantageous embodiment of the laundry care device, the three-way valve between the second portion and the third portion of the supply line is integrated into the supply line.

Thereby, the technical advantage is achieved that the three-way valve can effectively control the supply of wash liquor from the tub by the supply line into the washing drum. The three-way valve is positioned at the interface between the second section of the supply line, the third section of the supply line and the waste water discharge. The three-way valve can effectively control, by the first and second valve settings, whether the pumped amount of wash liquor is to be supplied to the wash drum through the third portion of the feed line, or whether the wash liquor is to be drained through the sewage line from the laundry care appliance. Thus, the position of the three-way valve in the feeder ensures effective control of the amount of heat supplied from the wash liquor to the laundry in the wash tub.

In a further advantageous embodiment of the laundry care device, the third section of the supply line comprises a riser, wherein the riser is arranged outside of the tub in the laundry care device.

As a result, the technical advantage is achieved by the use of the riser in the Feed line is achieved that it comes at a stop of pumping out of wash liquor through the drain pump to an immediate stop the supply of wash into the washing drum. Washing liquor, which is in the riser after switching off the drain pump, does not flow further into the washing drum due to gravity. As a result, by stopping the drain pump almost simultaneously, a stop of the supply of wash liquor into the wash drum can be achieved. In addition, the arrangement of the riser outside of the tub allows that in the laundry care device sufficient space is available to attach other components, such as a heat generating device or a temperature sensor to the riser. Thus, the use of the riser in the feeder enables efficient delivery of heated wash liquor into the wash drum.

In a further advantageous embodiment of the laundry care appliance, the washing drum comprises a device for moving laundry in the washing drum or a device for moving wash liquor in the washing drum.

This achieves the technical advantage that effective wetting of the laundry located in the washing drum with the supplied washing liquor is achieved by the device for moving laundry in the washing drum or the device for moving wash liquor in the washing drum. During a rotation of the washing drum laundry remains stuck in the apparatus for moving laundry in the washing drum and thereby carried the washing drum in the direction of rotation of the washing drum. Also, wash liquor will be moved through the device for moving wash liquor in the direction of rotation of the wash drum. Thus, by the apparatus for moving wash liquor in the washing drum or the apparatus for moving wash liquor in the washing drum, an effective mixture of washing liquor and laundry in the washing drum can be ensured. This allows an effective heat transfer from the wash to the laundry take place and the residual moisture after the spin phase is reduced.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a temperature detection device for detecting a temperature of wash liquor in the feed device.

This achieves the technical advantage that a precise control of the temperature of the second quantity of wash liquor in the feed device is achieved by the combination of the temperature detection device and the heat generating device. This is especially possible when the temperature detecting means and the heat generating means are in contact, and e.g. be controlled by a control device.

The temperature detecting means may detect when the temperature of the washing liquor in the feeder reaches a predetermined temperature. Once the sensed temperature is equal to the predetermined temperature, the heat generator may terminate heating of wash liquor in the feeder. The advantageous control ensures that the temperature of the wash liquor which is supplied to the laundry in the washing drum corresponds to the predetermined temperature. By the advantageous adjustment of the temperature of the wash liquor in the feeder, an effective heat transfer from the wash liquor to the laundry in the wash drum is achieved. Thereby, a reduction of the residual moisture of the laundry in the washing drum can be achieved after the spin phase.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a fill level sensor and a wash liquor feed device, wherein the fill level sensor is designed to detect a fill level of wash liquor in the wash tub, and wherein the wash liquor feed device is designed to supply a quantity of wash liquor to the wash tub when the detected Level falls below a predetermined level threshold.

Thereby, the technical advantage is achieved that it is ensured that during the supply of wash liquor from the tub in the washing drum always a sufficient amount of wash liquor is present in the tub. This prevents dry running of the tub. This is advantageous in order to prevent air from being pumped into the washing drum by the feeding device or to avoid overheating of the heat generating device in the feeding device. The level sensor may issue an internal warning signal to the wash liquor supply to signal that the detected level of wash liquor in the tub falls below a predetermined level threshold. The wash liquor supply device can then add a quantity of wash liquor into the tub until the detected level of wash liquor in the tub reaches the predetermined level threshold. As a result, a trouble-free sequence of the supply of heated wash liquor is ensured in the washing drum by the feeder.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a load detection device, wherein the load detection device is designed to detect the amount of laundry or the type of laundry in the washing drum, and wherein the wash liquor supply device is designed, the amount of supplied wash liquor depending on the detected amount of laundry or type of laundry to determine.

Thereby, the technical advantage is achieved that the determination of the really required amount of wash liquor depending on the amount of laundry or laundry in the washing drum ensures that a sufficiently large amount of wash liquor can be supplied by the feeder of the laundry, to effectively transfer heat from the To ensure washing liquor on the laundry. Determination and delivery of the required amount of wash liquor by the wash liquor supply ensures that there is a sufficient amount of wash liquor in the tub prior to supplying wash liquor to the wash tub to ensure complete wetting of the wash in the wash tub. If too little amount of wash liquor is present in the tub that is insufficient to completely wet the wash, then an additional amount of wash liquor may be added to the tub through the wash liquor feeder. In a full-load laundry drum, a larger amount of wash liquor may need to be added to the wash basket to achieve sufficient heat transfer from the wash liquor to the laundry than is the case with a low-load laundry drum.

In addition, the type of laundry also affects the required amount of wash liquor. For a type of laundry that can hold a large amount of fluid, such as Towels, a large amount of wash liquor is required to ensure sufficient heat transfer from the wash liquor to the laundry in the wash tub. In a type of laundry which can hold a small amount of liquid, such as e.g. Polyester fibers, a small amount of wash liquor is needed. By the precise determination of the required amount of wash liquor depending on the amount of laundry or the type of laundry, an effective reduction of the residual moisture of the laundry after the spin phase can be achieved.

In a further advantageous embodiment of the laundry care apparatus, the level sensor comprises a pressure sensor, wherein the pressure sensor is adapted to detect a pressure of wash liquor in the tub and wherein the wash liquor supply means is adapted to supply the amount of wash liquor to the tub when the sensed pressure is a predetermined one Pressure threshold falls below.

As a result, the technical advantage is achieved that the combination of the pressure sensor with the Waschlaugenzuführeinrichtung allows washing liquor can be automatically fed through the Waschlaugenzuführeinrichtung the tub. The pressure sensor may be located at the bottom of the tub and may sense the pressure of wash liquor in the tub. The pressure sensor detects the pressure exerted by the column of wash liquor in the tub on the bottom of the tub. Thus, the detected pressure correlates directly with the level of wash liquor in the tub. If the detected pressure falls below a predetermined pressure threshold value, then the pressure sensor of the wash liquor supply device indicates that wash liquor should be added to the tub so as to prevent the liquor tank from running dry. Thus, the addition of wash liquor by the wash liquor supply can be automatically regulated depending on the detected pressure. Thus, by the use of the pressure sensor in conjunction with the Waschlaugezuführeinrichtung a trouble-free flow of the supply of heated wash liquor can be ensured in the washing drum.

In a further advantageous embodiment of the laundry care appliance, the drive is designed, after the end of the third period, to drive the washing drum with a further spin frequency in order to spin-free the second amount of washing liquor from the laundry in the washing drum and to feed it to the washing tub.

As a result, the technical advantage is achieved that after sufficient heating of the laundry in the washing drum, the second amount of wash liquor can be removed from the laundry, whereby the residual moisture of the laundry is reduced after the spin phase. If the temperature of the wash liquor has reached a sufficiently high temperature, then it can be assumed that a sufficient amount of heat has been transferred from the wash liquor to the laundry in the wash basket. Direct measurement of the temperature of the laundry in the washing drum may not be practical. After the laundry has reached the sufficient temperature, no re-supply of warm wash liquor by the feeder to the laundry in the washing drum is more necessary and the second amount of wash liquor can be thrown out of the laundry in the washing drum. After completion of the third period another spin is carried out, in which the washing drum with a further spin frequency, in particular with a spin frequency of 300 revolutions per minute to 2000 revolutions per minute, is thrown. During the further spin process, the second amount of wash liquor is completely flung out of the laundry and can be taken up in the tub. The absorbed wash liquor can be pumped out through the drain pump and thus removed from the laundry care appliance. Thus, an effective reduction of the residual moisture in the laundry after the spin phase can be achieved by the subsequent further spinning process with the additional spin frequency.

In a further advantageous embodiment of the laundry care device, the drain pump is designed to pump the second amount of wash liquor from the tub after the third period.

As a result, the technical advantage is achieved that, after transferring a sufficient amount of heat from the wash liquor to the laundry, the no longer required second amount of wash liquor can be pumped out of the tub and removed from the laundry care appliance. As a result, the laundry is obtained with an advantageously reduced residual moisture after completion of the spin phase.

In a further advantageous embodiment of the laundry care appliance, the laundry care appliance comprises a temperature detection device, wherein the temperature detection device is designed to detect a temperature of wash liquor in the tub after the third period has ended, wherein the feed device is designed to re-inject the second amount of wash liquor from the tub Feed the interior of the washing drum when the detected temperature of the wash liquor in the tub is below a predetermined temperature threshold, and wherein the drive is adapted to drive the washing drum again at the rotational frequency when the detected temperature of the wash liquor in the tub below a predetermined temperature threshold.

As a result, the technical advantage is achieved that the supply of heated wash liquor to the laundry in the washing drum is repeated until the temperature of the wash liquor in the tub reaches a predetermined temperature threshold. Since the temperature of the laundry in the washing drum often can not be measured directly for practical reasons, the predetermined temperature threshold is set to ensure that a sufficient amount of heat has been transferred from the wash to the laundry in the washing drum. By choosing the predetermined temperature threshold can be ensured that after completion of the spin phase, the residual moisture in the laundry is sufficiently low.

The temperature detecting means detects the temperature of washing liquor in the tub after the completion of the third period. If the detected temperature falls below a predetermined temperature threshold, then it is assumed that the laundry in the washing drum has not yet reached the required temperature. In this case, a repetition of the supply of heated wash liquor by the feeder into the washing drum is necessary, as well as a heating of the supplied wash liquor by the heat generating means and a driving of the washing drum with the rotational frequency by the drive. The supply of heated wash liquor can be repeated until the wash liquor in the tub reaches the predetermined temperature threshold. This can ensure that the laundry has a low residual moisture after completion of the spin phase.

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

Show it:

1 a schematic representation of a laundry care device; and

2 a schematic representation of a laundry care device.

1 shows a schematic representation of a general laundry care device 100 , such as B. a washing machine. The laundry care device 100 includes a reservoir 101 , in which detergents or other liquid substances can be filled. The washing liquor required for the laundry care process is formed when water is added to the storage tank 101 is fed and mixes there with the detergent or with the other liquid substances. The interior of the laundry care appliance 100 includes a tub 103 in which the generated wash liquor is absorbed. A lot of laundry can be stored in a rotatably mounted washing drum 105 are introduced, which at least partially in the tub 103 is introduced. The laundry care device 100 includes a drive 107 that the washing drum 105 drives and thus a rotation of the washing drum 105 allows.

The drain pump 109 is designed to wash liquor from the tub 103 pump and through a feeder 111 the laundry in the washing drum 105 supply. The heat generating device 113 is in the feeder 111 integrated and is formed, the wash liquor, by the feeder 111 the washing drum 105 is supplied to heat to a predetermined temperature.

2 shows a schematic representation of a laundry care device 100 , such as a washing machine. The laundry care device 100 includes a tub 103 in which a rotatably mounted washing drum 105 attached by a drive 107 can be operated. A lot of wash liquor may be taken out of the tub 103 through a drain pump 109 pumped off and by a feeder 111 the washing drum 105 be fed again. The feeder 111 includes a heat generating device 113 through the feed device 111 Guided wash liquor is heated. The heat generating device 113 is in the feeder 111 integrated.

The rotation axis 115 the washing drum 105 is directed from the horizontal at an angle of about 13 ° forward at the top, giving you easier access and insight into the inside of the washing drum 105 Has. By this arrangement, in cooperation with devices 117 for moving laundry 123 in the washing drum 105 and with devices 119 for moving wash liquor 121 or warm water on the inner surface of the drum shell also an intensification of the wetting of the laundry 123 with washing liquor 121 or warm water reached. The devices 119 for moving wash liquor 121 in the washing drum 105 are formed so that they at the right rotation shown here by the arrow 125 the washing drum 105 an advantageous amount of wash liquor 121 can move.

The laundry care device 100 also has a liquor inlet system, which is a water connection fitting for the domestic water network 127 , an electrically controllable two-way valve 129 and a supply line 131 to the tub 103 optionally also by a Waschlaugezuführeinrichtung 133 may be performed from the feed water in a washing phase different amount of wash liquor 121 in the tub 103 can transport. The drive 107 , the two-way valve 129 as well as the heat generating device 113 can by a control device 135 be controlled in response to a wash program that is responsive to a time schedule and / or to the achievement of certain measurements of parameters such as wash liquor level 121 in the tub 103 , Lye temperature, speed of the laundry drum 105 within the laundry care device 100 can be bound. After a suitable evaluation, the control device 135 be suitable, for example, the heat generating device 113 , the drive 107 and / or the drain pump 109 to control.

In addition, the loading amount of the washing drum 105 with laundry 123 be taken into account by one in the control device 135 deposited relationship between amount of laundry or type of laundry and amount of water is used.

The tub 103 is with a nozzle 137 equipped, which is designed so that by the heat generating device 113 heated wash liquor 121 targeted to the laundry 123 , attached to an inner drum shell 139 the washing drum 105 can be sprayed. The warm suds 121 occurs from a Waschlaugenauslassöffnung 141 out. The supply of the nozzle 137 can be done using an electrically controllable three-way valve 143 take place, which can be switched so that wash liquor 121 that are in the tub 103 located, either to the nozzle 137 or to a wastewater discharge 145 can be transported. The drain pump 109 is formed a lot of suds 121 from the tub 103 through a supply line 147 the nozzle 137 supply. The feed line 147 includes a first section 149 , a second section 151 and a third section 153 , The drain pump 109 is through the first section 149 the supply line 147 with the drain opening of the tub 103 connected. The three-way valve 143 is through the second section 151 the supply line 147 with the drain pump 109 connected. The three-way valve 143 is through the third section 153 the supply line 147 with the nozzle 137 connected. The three-way valve 143 includes two valve settings. In the first valve setting is through the three-way valve 143 a lot of washing liquor 121 from the tub 103 through the third section 153 the supply line 147 the nozzle 137 fed. In the second valve setting is through the three-way valve 143 a lot of washing liquor 121 from the tub 103 through the wastewater discharge 145 from the laundry care device 100 guided.

The tub 103 can be a pressure sensor 155 for the measurement of the hydrostatic pressure p in the tub 103 include. The hydrostatic pressure p results from the fill level of the wash liquor 121 , The signals of the drive 107 , the pressure sensor 155 and a temperature detection device 157 become the controller 135 fed. With the temperature detection device 157 In particular, it can be determined whether the heating of the wash liquor 121 is sufficient or a re-supply of heated wash liquor 121 through the feeder 111 is needed.

After the heated wash liquor 121 in the wash 123 using the nozzle 137 and performing a reversing cycle in which the washing drum 105 is rotated at a speed below 60 revolutions per minute, preferably below 50 revolutions per minute and more preferably below 40 revolutions per minute, the wash liquor becomes 121 in a last further spin step with activated drain pump 109 pumped out. It will be laundry 123 obtained with a reduced residual moisture.

All 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

 reservoir

103

 tub

105

 washing drum

107

 drive

109

 Drain pump

111

 feeding

113

 Heat generator

115

 Rotary axis of the washing drum

117

 Device for moving laundry in the washing drum

119

 Device for moving washing liquor in the washing drum

121

 suds

123

 Laundry

125

 Clockwise rotation of the washing drum

127

 Domestic water supply

129

 Two-way valve

131

 supply

133

Waschlaugenzuführeinrichtung

135

 control device

137

 jet

139

 drum shell

141

 Waschlaugenauslassöffnung

143

 Three-way valve

145

 wastewater discharge

147

 feed

149

 First section of the supply line

151

 Second section of the supply line

153

 Third section of the supply line

155

 pressure sensor

157

 Temperature sensing device

Claims (15)

Laundry care device ( 100 ) for the care of laundry ( 123 ), wherein the laundry care device ( 100 ) a tub ( 103 ) for receiving wash liquor ( 121 ), a rotatably mounted washing drum ( 105 ) for receiving laundry ( 123 ), a drive ( 107 ) for driving the washing drum ( 105 ), a drain pump ( 109 ) for pumping off washing liquor ( 121 ) from the tub ( 103 ), a feeder ( 111 ) for supplying washing liquor ( 121 ) from the tub ( 103 ) in the washing drum ( 105 ), and a heat generating device ( 113 ) for heating by the feeder ( 111 ) guided wash liquor ( 121 ), characterized in that the drain pump ( 109 ) is formed, in a first period of time a first amount of wash liquor ( 121 ) from the tub ( 103 ), that the drive ( 107 ) is formed, in a subsequent to the first period second period the washing drum ( 105 ) with a spin frequency to a second amount of wash ( 121 ) from the laundry ( 123 ) in the washing drum ( 105 ) and the tub ( 103 ), that the feeding device ( 111 ) is formed, in a subsequent to the second period third period, the second amount of wash ( 121 ) from the tub ( 103 ) the interior of the washing drum ( 105 ) to wash the laundry ( 123 ) in the washing drum ( 105 ), that the heat generating device ( 113 ) is formed, in the third period by the feed device ( 111 ) guided second amount of wash liquor ( 121 ) to a predetermined temperature, wherein the heat generating device ( 113 ) in the feeder ( 111 ) is integrated, that the drive ( 107 ) is formed, in the third period the washing drum ( 105 ) with a rotation frequency to the second amount of wash ( 121 ) in the washing drum ( 105 ) laundry ( 123 ) to distribute. Laundry care device ( 100 ) according to claim 1, characterized in that the rotational frequency is less than the spin frequency. Laundry care device ( 100 ) according to claim 1 or 2, characterized in that the feeding device ( 111 ) a supply line ( 147 ) and a nozzle ( 137 ), that the drain pump ( 109 ), the second quantity of wash liquor ( 121 ) from the tub ( 103 ) through the Supply line ( 147 ) of the nozzle ( 137 ), and that the nozzle ( 137 ) in the washing drum ( 105 ) is arranged. Laundry care device ( 100 ) according to claim 3, characterized in that the drain pump ( 109 ) by a first section ( 149 ) of the supply line ( 147 ) with a drain opening of the tub ( 103 ) connected is. Laundry care device ( 100 ) according to claim 3 or 4, characterized in that the supply line ( 147 ) a three-way valve ( 143 ), which with the drain pump ( 109 ) through a second section ( 151 ) of the supply line ( 147 ) connected to the nozzle ( 137 ) through a third section ( 153 ) of the supply line ( 147 ) and that the laundry care appliance ( 100 ) a waste water discharge ( 145 ) for the removal of wash liquor ( 121 ) from the laundry care device ( 100 ), wherein the three-way valve ( 143 ) is formed, in a first valve setting, the second amount of wash ( 121 ) through the third section ( 153 ) of the supply line ( 147 ) of the nozzle ( 137 ), and in a second valve setting the second amount of wash liquor ( 121 ) by the waste water discharge ( 145 ) from the laundry care device ( 100 ). Laundry care device ( 100 ) according to claim 5, characterized in that the three-way valve ( 143 ) between the second section ( 151 ) and the third section ( 153 ) of the supply line ( 147 ) in the supply line ( 147 ) is integrated. Laundry care device ( 100 ) according to one of the preceding claims 5 or 6, characterized in that the third section ( 153 ) of the supply line ( 147 ) comprises a riser, and that the riser outside the tub ( 103 ) in the laundry care appliance ( 100 ) is arranged. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the washing drum ( 105 ) a device ( 117 ) for moving laundry ( 123 ) in the washing drum ( 105 ) or a device ( 119 ) for moving wash liquor ( 121 ) in the washing drum ( 105 ). Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the laundry care appliance ( 100 ) a temperature detection device ( 157 ) for detecting a temperature of wash liquor ( 121 ) in the feeder ( 111 ). Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the laundry care appliance ( 100 ) a fill level sensor and a wash liquor feed device ( 133 ), that the fill level sensor is formed, a level of wash liquor ( 121 ) in the tub ( 103 ) and that the wash liquor supply device ( 133 ), a quantity of wash liquor ( 121 ) the tub ( 103 ), when the detected level falls below a predetermined level threshold. Laundry care device ( 100 ) according to claim 10, characterized in that the laundry care device ( 100 ) comprises a load detection device that the load detection device is formed, the amount of laundry or the type of laundry in the washing drum ( 105 ) and that the wash liquor supply device ( 133 ), the amount of supplied wash liquor ( 121 ) depending on the detected amount of laundry or type of laundry to determine. Laundry care device ( 100 ) according to claim 10 or 11, characterized in that the level sensor comprises a pressure sensor ( 155 ) and that the pressure sensor ( 155 ), a pressure of wash liquor ( 121 ) in the tub ( 103 ) and that the wash liquor supply device ( 133 ), the amount of wash liquor ( 121 ) the tub ( 103 ), when the detected pressure falls below a predetermined pressure threshold. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the drive ( 107 ) is formed, after the end of the third period, the washing drum ( 105 ) with another spin frequency to drive the second amount of wash liquor ( 121 ) from the laundry ( 123 ) in the washing drum ( 105 ) and the tub ( 103 ). Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the drain pump ( 109 ), the second quantity of wash liquor ( 121 ) from the tub ( 103 ) after the third period. Laundry care device ( 100 ) according to one of the preceding claims, characterized in that the laundry care appliance ( 100 ) a temperature detection device ( 157 ), that the temperature detection device ( 157 ), a temperature of wash liquor ( 121 ) in the tub ( 103 ) after the end of the third period that the feeder ( 111 ), the second quantity of wash liquor ( 121 ) from the tub ( 103 ) again inside the washing drum ( 105 ), if the detected Temperature of the wash liquor ( 121 ) in the tub ( 103 ) falls below a predetermined temperature threshold, and that the drive ( 107 ), the washing drum ( 105 ) again at the rotational frequency when the detected temperature of the wash liquor ( 121 ) in the tub ( 103 ) falls below a predetermined temperature threshold.

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