Washing machine and method for operating a washing machine

EP4496919A1Inactive Publication Date: 2025-01-29MIELE & CO KG
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Patent Information

Application Number
EP2023712040
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-03-23
Filing Date
2023-03-22
Publication Date
2025-01-29
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In automatic washing machines, excessive laundry items often block the detergent dispensing channel, preventing detergent from reaching the drum during the washing process.

Method used

The washing machine is designed to spin the laundry before and/or during the rinsing process, creating space and allowing detergent to be flushed into the drum through a controlled dispensing channel, ensuring even distribution of the detergent-water mixture.

Benefits of technology

This method ensures the detergent-water mixture enters the drum unhindered, achieving even distribution over the laundry, preventing detergent accumulation and ensuring effective rinsing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a washing machine comprising a liquor container (1) for receiving water (8), a drum (2), which is rotatably mounted in the liquor container (1), for receiving laundry, a loading opening for filling the drum (2) with the laundry, a door (4) for closing the loading opening, said door having a flushing channel (5) for storing detergent (7), a motor for driving the drum (2), and a controller which is designed and configured so as to control the motor when a wash program is being carried out such that laundry (6) located in the drum (2) is centrifuged prior to and / or during a flushing process, in which the water (8) is supplied to the drum (2) through the flushing channel (5), and so as to control the flushing process such that the water (8) is supplied to the flushing channel (5) so that the detergent (7) is flushed into the drum (2). The invention additionally relates to a method for operating a washing machine, said method involving the process of carrying out a wash program which has a flushing process for flushing the detergent (7) stored in the flushing channel (5) into the drum (2), wherein the laundry (6) is centrifuged prior to and / or during the flushing process, and water (8) is supplied to the drum (2) through the flushing channel (5) during the flushing process in order to flush the detergent (7) out of the flushing channel (5) and into the drum.
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Description

[0001] Description

[0002] Washing machine and method for operating a washing machine

[0003] The invention relates to a washing machine and a method for operating a washing machine. In particular, the invention relates to a washing machine with a tub for holding water, a drum rotatably mounted in the tub for holding laundry, a loading opening for filling the drum with laundry, a door for closing the loading opening, a dispensing channel for accommodating detergent, a motor for driving the drum, and a control device designed and configured to control the execution of a washing program. The invention also relates to a method for operating such a washing machine.

[0004] When adding detergent through the washing machine door, there is the problem that too many items of laundry can block the dispenser channel, meaning the detergent remains inside the door during the intended dispensing process and does not reach the drum.

[0005] The invention therefore addresses the problem of providing a washing machine and a method for operating a washing machine with a detergent supply in the door of the washing machine, which are designed in such a way that access from the door to the drum can be cleared by adjacent items of laundry in order to rinse the detergent into the drum in a rinsing process.

[0006] According to the invention, this problem is solved by a washing machine having the features of patent claim 1 and a method having the features of patent claim 4. Advantageous embodiments and further developments of the invention emerge from the following subclaims.

[0007] The advantages achieved with the invention are that the detergent-water mixture reaches the drum unhindered by the spinning and / or spinning of the laundry during the rinsing process. Furthermore, an even distribution of the detergent-water mixture throughout the laundry is achieved.

[0008] The invention relates to washing machines with

[0009] - a lye container for holding water,

[0010] - a drum rotatably mounted in the tub for holding laundry, a loading opening for filling the drum with laundry,

[0011] - a door to close the loading opening, which has a rinsing channel for

[0012] Storage of detergent,

[0013] - a motor to drive the drum and

[0014] - a control device which is designed and arranged to

[0015] Carrying out a washing program, controlling the motor in such a way that laundry in the drum is spun before and / or during a rinsing process in which the water is supplied to the drum through the rinsing channel, and controlling the rinsing process in such a way that the water is supplied to the rinsing channel in such a way that the detergent is rinsed into the drum.

[0016] By selectively spinning the laundry before and / or during the dispensing process, the laundry is pressed against the inner wall of the drum. This creates a free space in the center of the drum. During spinning, the water flow is preferably directed into the door's dispensing channel. This ensures that the detergent contained in the dispensing channel is effectively and evenly dispensed into the drum. The control device is preferably designed to spin the dry laundry before the dispensing process and then, during spinning, to supply water, along with the detergent, to the drum through the dispensing channel.

[0017] In a preferred embodiment, the dispensing channel is designed such that powdered detergent enters the drum exclusively or substantially exclusively when water is supplied to the dispensing channel. This means that the supply of detergent is prevented without additional water. For example, the dispensing channel is shaped such that it has a dispensing channel inlet, for example in the form of an inlet opening for filling the dispensing channel with detergent, and a dispensing channel outlet, for example in the form of an outlet opening for dispensing the detergent into the drum. The outlet opening has, for example, a constriction and / or a ramp with a predetermined incline and / or gradient, which is or are designed such that the detergent does not move, or substantially does not move, to the drum on its own.

[0018] Preferably, the control device controls the motor such that it rotates the drum during spinning at a loading speed or compression speed at which the laundry rests against the drum or is compressed. This ensures that the induction channel's access to the drum is clear. The loading speed is a drum speed at which all laundry items rest against the drum shell. The compression speed is a drum speed at which all laundry items are compressed against the drum shell.

[0019] The invention further relates to a method for operating a washing machine with a tub for holding water, a drum rotatably mounted in the tub for holding laundry, a loading opening for filling the drum with the laundry, a door for closing the loading opening, which has a dispensing channel for accommodating detergent, a motor for driving the drum, wherein the method comprises carrying out a washing program which has a dispensing process for dispensing the detergent accommodated in the dispensing channel into the drum, wherein the laundry is spun before and / or during the dispensing process and water is supplied to the drum through the dispensing channel during the dispensing process in order to dispense the detergent from the dispensing channel into the drum.Preferably, the drum is spun before the rinsing process and then, during the spinning process, water is fed through the drum's rinsing channel to rinse the detergent into the drum.

[0020] In a preferred embodiment, the drum rotates during the spinning process at a contact speed or compression speed, which causes the laundry to contact the drum or be compressed. This ensures that the access of the dispensing channel to the drum is clear when water is supplied to it.

[0021] The detergent is preferably in powder form. This prevents or at least reduces the risk of the detergent migrating into the drum on its own.

[0022] An embodiment of the invention is shown schematically in the drawings and is described in more detail below. It shows schematically and not to scale.

[0023] Fig. 1 is a cross-sectional view of a washing machine according to the invention before a rinsing process; and

[0024] Fig. 2 is a cross-sectional view of the washing machine shown in Fig. 1 during the rinsing process.

[0025] Fig. 1 shows a cross-sectional view of an automatic washing machine according to the invention before a rinsing process. The washing machine has a tub 1 for holding water 8, a drum 2 rotatably mounted in the tub 1 for holding laundry 6, a loading opening (not shown) for filling the drum 2 with the laundry 6 and a door 4 for closing the loading opening. The door 4 has a rinsing channel 5 for accommodating detergent 7. The rinsing channel 5 has a rinsing channel inlet 51 for filling the rinsing channel 5 with a detergent 7 and a rinsing channel outlet 52 through which the detergent 7 can be rinsed into the drum 2 while supplying water 8 into the drum 2.Furthermore, the washing machine has a motor (not shown) for driving the drum 2 and a control device (not shown) which is designed and configured to control the motor during the execution of a washing program in such a way that the laundry 6 located in the drum 2 is spun before and / or during a rinsing process, and to control the rinsing process in such a way that the water 8 is supplied to the rinsing channel 5 in such a way that the detergent 7 is rinsed into the drum 2.

[0026] The washing machine is shown before a rinsing process and in a state in which the laundry 6 is distributed in the drum 2 and blocks the rinsing channel outlet 52. The

[0027] Laundry 6 is preferably spun before the rinsing process, which is not shown in Fig. 1.

[0028] Fig. 2 shows a cross-sectional view of the washing machine shown in Fig. 1 during a rinsing process. The washing machine is shown during the rinsing process and in a state in which the laundry 6 is spun, so that the laundry 6 is

[0029] Spinning rests on the drum 2 and the dispensing channel outlet 52 is exposed, and in which water 8 is supplied to the dispensing channel 5 during the dispensing process in order to rinse the detergent 7 from the dispensing channel 5 into the drum 2.

[0030] List of reference symbols

[0031] 1 suds container

[0032] 2 drums

[0033] 3 Water supply line 4 Door

[0034] 5 Induction channel

[0035] 6 laundry

[0036] 7 detergents

[0037] 8 Water 51 Induction channel inlet

[0038] 52 Induction channel outlet

Claims

Patent claims 1. Washing machine with - a lye container (1) for receiving water (8), - a drum (2) rotatably mounted in the tub (1) for receiving laundry (6), - a loading opening for filling the drum (2) with the laundry (6), - a door (4) for closing the loading opening, which includes a feed channel (5) for storage of washing detergent (7) has - a motor for driving the drum (2), and - a control unit that is trained and set up during the To control the motor in such a way that laundry (6) located in the drum (2) is spun before and / or during a dispensing process in which the water (8) is supplied to the drum (2) through the dispensing channel (5), and to control the dispensing process in such a way that the water (8) is supplied to the dispensing channel (5) in such a way that the detergent (7) is dispensed into the drum (2).

2. Washing machine according to claim 1, characterized in that the inlet channel (5) is designed such that powdered detergent (7) enters the drum (2) exclusively or substantially exclusively when water (8) is supplied into the inlet channel (5).

3. Washing machine according to claim 1 or 2, characterized in that the control device controls the motor in such a way that it rotates the drum (2) during spinning at a contact speed or compression speed at which the laundry (6) is in contact with or compressed against the drum (2).

4. Method for operating a washing machine with a tub (1) for receiving water (8), a drum (2) rotatably mounted in the tub (1) for receiving laundry (6), a loading opening for filling the drum (2) with the laundry (6), a door (4) for closing the loading opening which has a dispenser (5) for holding detergent (7), and a motor for driving the drum (2), wherein the method includes the execution of a washing program which includes a dispenser operation for dispensing the detergent (7) in the The method comprises a feed channel (5) containing detergent (7) into the drum (2), wherein the laundry (6) is spun before and / or during the feeding process, and water (8) is supplied to the drum (2) through the feed channel (5) during the feeding process to feed the detergent (7) from the feed channel (5) into the drum (2). The method according to claim 4, characterized in that the drum (2) rotates during the spinning of the laundry (6) at a contact speed or compression speed at which the laundry (6) is in contact with or compressed against the drum (2). The method according to claim 4 or 5, characterized in that the detergent (7) is in powder form.

Citation Information

Patent Citations

  • Control method of a laundry machine

    US20120180534A1